     1                                  ; ****************************************************************************
     2                                  ; pr3.s (pr386.s) - print file - by Erdogan Tan - 25/06/2022
     3                                  ; ----------------------------------------------------------------------------
     4                                  ; Retro UNIX 386 v1 (& v1.1) - file print utility 
     5                                  ;
     6                                  ; [ Last Modification: 10/07/2022 ]
     7                                  
     8                                  ; Derived from disassembled source code of unix v2 '/bin/pr' 
     9                                  ;
    10                                  ; ****************************************************************************
    11                                  ; [ s2-bits.gz - bin/pr (archive date: 17-01-1972) ]
    12                                  
    13                                  ; Assembler: NASM v2.15
    14                                  ; ((nasm pr3.s -l pr3.txt -o pr3 -Z error.txt))
    15                                  
    16                                  ; pr1.s (26/06/2022, Retro UNIX 386 v1 & v1.1)
    17                                  ; pr2.s (26/06/2022, Retro UNIX 386 v1.2)
    18                                  ; pr3.s (10/07/2022, Retro UNIX 386 v1 & v1.1) ; (LF -> CRLF)
    19                                  ; pr4.s (10/07/2022, Retro UNIX 386 v1.2) ; (LF -> CRLF)
    20                                  
    21                                  ; UNIX v1 system calls
    22                                  _rele 	equ 0
    23                                  _exit 	equ 1
    24                                  _fork 	equ 2
    25                                  _read 	equ 3
    26                                  _write	equ 4
    27                                  _open	equ 5
    28                                  _close 	equ 6
    29                                  _wait 	equ 7
    30                                  _creat 	equ 8
    31                                  _link 	equ 9
    32                                  _unlink	equ 10
    33                                  _exec	equ 11
    34                                  _chdir	equ 12
    35                                  _time 	equ 13
    36                                  _mkdir 	equ 14
    37                                  _chmod	equ 15
    38                                  _chown	equ 16
    39                                  _break	equ 17
    40                                  _stat	equ 18
    41                                  _seek	equ 19
    42                                  _tell 	equ 20
    43                                  _mount	equ 21
    44                                  _umount	equ 22
    45                                  _setuid	equ 23
    46                                  _getuid	equ 24
    47                                  _stime	equ 25
    48                                  _quit	equ 26	
    49                                  _intr	equ 27
    50                                  _fstat	equ 28
    51                                  _emt 	equ 29
    52                                  _mdate 	equ 30
    53                                  _stty 	equ 31
    54                                  _gtty	equ 32
    55                                  _ilgins	equ 33
    56                                  _sleep	equ 34 ; Retro UNIX 8086 v1 feature only !
    57                                  _msg    equ 35 ; Retro UNIX 386 v1 feature only !
    58                                  _geterr	equ 36 ; Retro UNIX 386 v1 feature only !
    59                                  ; 12/01/2022 - Retro UNIX 386 v1.2
    60                                  ; Retro UNIX 386 v2 system calls
    61                                  _setgid	equ 37
    62                                  _getgid	equ 38
    63                                  _sysver	equ 39 ; (get) Retro Unix 386 version
    64                                  
    65                                  ;;;
    66                                  ESCKey equ 1Bh
    67                                  EnterKey equ 0Dh
    68                                  
    69                                  %macro sys 1-4
    70                                      ; 03/09/2015	
    71                                      ; 13/04/2015
    72                                      ; Retro UNIX 386 v1 system call.		
    73                                      %if %0 >= 2   
    74                                  	mov ebx, %2
    75                                  	%if %0 >= 3    
    76                                  	    mov ecx, %3
    77                                  	    %if %0 = 4
    78                                  	       mov edx, %4   
    79                                  	    %endif
    80                                  	%endif
    81                                      %endif
    82                                      mov eax, %1
    83                                      int 30h	   
    84                                  %endmacro
    85                                  
    86                                  ; 25/06/2022
    87                                  struc stat
    88                                  	; Note: This is for Retro UNIX v1 'sysstat' output !!!
    89                                  	; (34 bytes)
    90 00000000 ????                    	.inode:  resw 1	
    91 00000002 ????                    	.mode:	 resw 1
    92 00000004 ??                      	.nlinks: resb 1
    93 00000005 ??                      	.uid:	 resb 1
    94 00000006 ????                    	.size:	 resw 1
    95 00000008 <res 10h>               	.dskptr: resw 8
    96 00000018 ????????                	.ctime:	 resd 1
    97 0000001C ????????                	.mtime:	 resd 1
    98 00000020 ????                    	.rsvd:   resw 1
    99                                  	.strucsize:
   100                                  endstruc 
   101                                  
   102                                  ; Retro UNIX 386 v1 system call format:
   103                                  ; sys systemcall (eax) <arg1 (ebx)>, <arg2 (ecx)>, <arg3 (edx)>
   104                                  
   105                                  ;-----------------------------------------------------------------
   106                                  ;  code
   107                                  ;-----------------------------------------------------------------
   108                                  
   109                                  [BITS 32] ; 32-bit intructions (for 80386 protected mode)
   110                                  
   111                                  [ORG 0] 
   112                                  
   113                                  START_CODE:
   114                                  	; 25/06/2022
   115 00000000 59                      	pop	ecx ; ecx = number of arguments
   116                                  	;
   117 00000001 58                      	pop	eax ; eax = argument 0 = executable file name
   118                                  	;
   119 00000002 BD[6C050000]            	mov	ebp, program_msg
   120                                  	;
   121                                  	;dec	ecx
   122 00000007 FEC9                    	dec	cl
   123 00000009 7E7E                    	jng	short prn_0
   124                                  
   125 0000000B 880D[D0060000]          	mov	[argc], cl
   126                                  
   127                                  	sys	_open, lpt1, 1  ; open /dev/lpr for write
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 00000011 BB[63050000]        <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 00000016 B901000000          <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000001B B805000000          <1>  mov eax, %1
    83 00000020 CD30                <1>  int 30h
   128 00000022 730F                    	jnc	short prn_1
   129                                  
   130 00000024 B8[96060000]            	mov	eax, printer_err_msg
   131 00000029 E869020000              	call	print_msg
   132 0000002E E9BD000000              	jmp	hang	
   133                                  prn_1:
   134 00000033 A3[DC060000]            	mov	[prnfnum], eax
   135                                  
   136                                  prn_2:
   137 00000038 5F                      	pop	edi
   138                                  
   139 00000039 8A07                    	mov	al, [edi]	
   140                                  
   141 0000003B 3C2D                    	cmp	al, '-' ; option ?	
   142                                  	;jne	short prn_4
   143 0000003D 7405                    	je	short case_l
   144 0000003F E9B5000000              	jmp	prn_4
   145                                  case_l:
   146 00000044 47                      	inc	edi
   147 00000045 8A07                    	mov	al, [edi]
   148                                  
   149 00000047 3C6C                    	cmp	al, 'l'
   150 00000049 7509                    	jne	short case_r 
   151 0000004B C605[CD060000]4E        	mov	byte [rows], 78
   152 00000052 EB24                    	jmp	short prn_3
   153                                  case_r:
   154 00000054 3C72                    	cmp	al, 'r'
   155 00000056 7509                    	jne	short case_m
   156 00000058 C605[CD060000]42        	mov	byte [rows], 66
   157 0000005F EB17                    	jmp	short prn_3
   158                                  case_m:
   159 00000061 3C6D                    	cmp	al, 'm'
   160 00000063 7509                    	jne	short case_c
   161 00000065 C605[CE060000]00        	mov	byte [cdatef], 0
   162 0000006C EB0A                    	jmp	short prn_3
   163                                  case_c:
   164 0000006E 3C63                    	cmp	al, 'c'
   165 00000070 75FC                    	jne	short case_c
   166                                  	;mov	byte [cdatef], 1
   167 00000072 FE05[CE060000]          	inc	byte [cdatef]
   168                                  
   169                                  prn_3:
   170 00000078 FE0D[D0060000]          	dec	byte [argc]
   171 0000007E 7FB8                    	jg	short prn_2
   172                                  
   173                                  	; print usage message on /dev/tty
   174 00000080 803D[D1060000]00        	cmp	byte [files], 0
   175 00000087 772E                    	ja	short fclose_exit
   176                                  prn_0:
   177                                  	; print usage message on stdout
   178                                  	;sys	_write, 1, program_msg, size_pmsg
   179                                  	sys	_msg, program_msg, size_pmsg, 0Fh 
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 00000089 BB[6C050000]        <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 0000008E B93F000000          <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 00000093 BA0F000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 00000098 B823000000          <1>  mov eax, %1
    83 0000009D CD30                <1>  int 30h
   180                                  
   181                                  	sys	_write, 1, usage_msg, size_umsg
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 0000009F BB01000000          <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 000000A4 B9[AC050000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 000000A9 BAE9000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000000AE B804000000          <1>  mov eax, %1
    83 000000B3 CD30                <1>  int 30h
   182 000000B5 EB39                    	jmp	short hang
   183                                  
   184                                  fclose_exit:
   185                                  	sys	_write, 1, nextline, 2
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000000B7 BB01000000          <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 000000BC B9[93060000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 000000C1 BA02000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000000C6 B804000000          <1>  mov eax, %1
    83 000000CB CD30                <1>  int 30h
   186                                  
   187 000000CD 803D[E0060000]00        	cmp	byte [txtfnum], 0
   188 000000D4 760D                    	jna	short pclose_exit
   189                                  p_err_exit:
   190                                  	sys	_close, [txtfnum]
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000000D6 8B1D[E0060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000000DC B806000000          <1>  mov eax, %1
    83 000000E1 CD30                <1>  int 30h
   191                                  	;jmp	short pclose_exit
   192                                  
   193                                  pclose_exit:
   194                                  	sys	_close, [prnfnum]
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000000E3 8B1D[DC060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000000E9 B806000000          <1>  mov eax, %1
    83 000000EE CD30                <1>  int 30h
   195                                  hang:
   196                                  	sys	_exit
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74                              <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000000F0 B801000000          <1>  mov eax, %1
    83 000000F5 CD30                <1>  int 30h
   197 000000F7 EBF7                    	jmp	short hang
   198                                  
   199                                  prn_4:
   200 000000F9 FE05[D1060000]          	inc	byte [files]
   201                                  
   202                                  	; edi = txt file name address
   203                                  
   204                                  	sys	_open, edi, 0 ; open for read
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000000FF 89FB                <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 00000101 B900000000          <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 00000106 B805000000          <1>  mov eax, %1
    83 0000010B CD30                <1>  int 30h
   205 0000010D 730F                    	jnc	short prn_5
   206                                  
   207                                  f_err_exit:
   208 0000010F B8[AA060000]            	mov	eax, file_err_msg
   209 00000114 E87E010000              	call	print_msg
   210 00000119 E95AFFFFFF              	jmp	prn_3
   211                                  
   212                                  prn_5:
   213 0000011E A3[E0060000]            	mov	[txtfnum], eax
   214                                  
   215 00000123 F605[CE060000]FF        	test	byte [cdatef], 0FFh
   216 0000012A 7409                    	jz	short prn_6
   217                                  	sys	_time
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74                              <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000012C B80D000000          <1>  mov eax, %1
    83 00000131 CD30                <1>  int 30h
   218 00000133 EB13                    	jmp	short prn_7
   219                                  prn_6:
   220                                  	sys	_fstat, eax, stbuf
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 00000135 89C3                <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 00000137 B9[6C070000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000013C B81C000000          <1>  mov eax, %1
    83 00000141 CD30                <1>  int 30h
   221 00000143 A1[88070000]            	mov	eax, [stbuf+stat.mtime]
   222                                  prn_7:
   223 00000148 A3[D8060000]            	mov	[mtime], eax
   224                                  
   225                                  write_pages:
   226 0000014D 31C0                    	xor	eax, eax ; 0
   227 0000014F 66A3[D2060000]          	mov	[pgnumber], ax
   228 00000155 A2[D4060000]            	mov	[eof], al
   229 0000015A A2[D5060000]            	mov	[cchar], al	
   230                                  write_next_page:	
   231 0000015F E87A010000              	call	readf
   232 00000164 732B                    	jnc	short prn_8
   233                                  
   234                                  	sys	_close, [txtfnum]
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 00000166 8B1D[E0060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000016C B806000000          <1>  mov eax, %1
    83 00000171 CD30                <1>  int 30h
   235                                  
   236 00000173 FE0D[D0060000]          	dec	byte [argc]
   237                                  	;jng	short pclose_exit
   238 00000179 7F05                    	jg	short p_next_file
   239 0000017B E963FFFFFF              	jmp	pclose_exit
   240                                  
   241                                  p_next_file:
   242 00000180 29C0                    	sub	eax, eax
   243                                  
   244 00000182 A2[E0060000]            	mov	[txtfnum], al ; 0 ; open file number
   245                                  	;mov	[fbuf], eax ; 0	  ; open file number
   246 00000187 A3[E4060000]            	mov	[fbuf+4], eax ; 0 ; character count
   247                                  
   248 0000018C E9A7FEFFFF              	jmp	prn_2
   249                                  
   250                                  prn_8:
   251                                  	sys	_write, [prnfnum], EmptyLines, 4 ;  2 rows
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 00000191 8B1D[DC060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 00000197 B9[BB060000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 0000019C BA04000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000001A1 B804000000          <1>  mov eax, %1
    83 000001A6 CD30                <1>  int 30h
   252 000001A8 726D                    	jc	short prn_err
   253                                  
   254 000001AA A1[D8060000]            	mov	eax, [mtime]
   255 000001AF 57                      	push	edi
   256 000001B0 E8BC010000              	call	ctime
   257 000001B5 5F                      	pop	edi
   258                                  	; cbuf = date&time string (26 bytes)
   259                                  	
   260                                  	sys	_write, [prnfnum], cbuf, 26
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000001B6 8B1D[DC060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 000001BC B9[48050000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 000001C1 BA1A000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000001C6 B804000000          <1>  mov eax, %1
    83 000001CB CD30                <1>  int 30h
   261 000001CD 7248                    	jc	short prn_err
   262                                  	
   263                                  	sys	_write, [prnfnum], PageHeader-2, 2
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000001CF 8B1D[DC060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 000001D5 B9[C5060000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 000001DA BA02000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000001DF B804000000          <1>  mov eax, %1
    83 000001E4 CD30                <1>  int 30h
   264 000001E6 722F                    	jc	short prn_err
   265                                  
   266 000001E8 66FF05[D2060000]        	inc	word [pgnumber]
   267                                  
   268 000001EF 89FE                    	mov	esi, edi ; file name address (on stack)
   269                                  
   270 000001F1 31D2                    	xor	edx, edx
   271                                  prn_9:	
   272 000001F3 AC                      	lodsb
   273 000001F4 08C0                    	or	al, al
   274 000001F6 7404                    	jz	short prn_10
   275 000001F8 FEC2                    	inc	dl
   276 000001FA EBF7                    	jmp	short prn_9
   277                                  
   278                                  prn_10:
   279 000001FC 89F9                    	mov	ecx, edi
   280                                  	;sys	_write, [prnfnum], edi, edx
   281                                  	sys	_write
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74                              <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000001FE B804000000          <1>  mov eax, %1
    83 00000203 CD30                <1>  int 30h
   282 00000205 7210                    	jc	short prn_err
   283                                  
   284 00000207 B9[C7060000]            	mov	ecx, PageHeader
   285 0000020C B206                    	mov	dl, 6
   286                                  	;sys	_write, [prnfnum], PageHeader, edx
   287                                  	sys	_write
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74                              <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000020E B804000000          <1>  mov eax, %1
    83 00000213 CD30                <1>  int 30h
   288                                  	;jc	short prn_err
   289                                  	; 10/07/2022
   290 00000215 730F                    	jnc	short prn_14
   291                                  
   292                                  prn_err:
   293 00000217 B8[96060000]            	mov	eax, printer_err_msg
   294 0000021C E876000000              	call	print_msg	
   295 00000221 E9B0FEFFFF              	jmp	p_err_exit
   296                                  
   297                                  prn_14:
   298 00000226 66A1[D2060000]          	mov	ax, [pgnumber] 
   299 0000022C E8C2000000              	call	write_pg_num
   300 00000231 72E4                    	jc	short prn_err	
   301                                  
   302                                  	;sys	_write, [prnfnum], EmptyLines, 8 ; 4 rows
   303 00000233 B9[BB060000]            	mov	ecx, EmptyLines
   304 00000238 B208                    	mov	dl, 8
   305                                  	sys	_write
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74                              <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000023A B804000000          <1>  mov eax, %1
    83 0000023F CD30                <1>  int 30h
   306 00000241 72D4                    	jc	short prn_err
   307                                  
   308 00000243 8A15[CD060000]          	mov	dl, [rows]
   309 00000249 80EA0B                  	sub	dl, 11
   310 0000024C 89D5                    	mov	ebp, edx
   311                                  
   312                                  write_next_char:
   313                                  prn_11:
   314 0000024E E85E000000              	call	getchar
   315                                  
   316                                  	; 10/07/2022
   317 00000253 88C4                    	mov	ah, al
   318 00000255 8625[D7060000]          	xchg	ah, [pchr] ; previous character
   319 0000025B 3C0A                    	cmp	al, 0Ah
   320 0000025D 750E                    	jne	short prn_13
   321 0000025F 80FC0D                  	cmp	ah, 0Dh
   322 00000262 7409                    	je	short prn_13
   323 00000264 B00D                    	mov	al, 0Dh
   324 00000266 E89D000000              	call	writechar
   325 0000026B B00A                    	mov	al, 10 ; 0Ah
   326                                  	;
   327                                  prn_13:
   328 0000026D E896000000              	call	writechar
   329 00000272 3C0A                    	cmp	al, 10 ; lf character, nextline
   330 00000274 75D8                    	jne	short prn_11
   331 00000276 4D                      	dec	ebp
   332 00000277 75D5                    	jnz	short prn_11
   333                                  	
   334                                  	sys	_write, [prnfnum], EmptyLines, 10 ; 5 rows
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 00000279 8B1D[DC060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 0000027F B9[BB060000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 00000284 BA0A000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 00000289 B804000000          <1>  mov eax, %1
    83 0000028E CD30                <1>  int 30h
   335 00000290 7285                    	jc	short prn_err
   336                                  prn_12:
   337 00000292 E9C8FEFFFF              	jmp	write_next_page
   338                                  
   339                                  ;-----------------------------------------------------------------
   340                                  
   341                                  print_msg:
   342                                  	; eax = asciiz string address
   343 00000297 89C2                    	mov	edx, eax
   344 00000299 4A                      	dec	edx
   345                                  nextchr:
   346 0000029A 42                      	inc	edx
   347 0000029B 803A00                  	cmp	byte [edx], 0
   348 0000029E 77FA                    	ja	short nextchr
   349                                  	;cmp	[edx], 0Dh
   350                                  	;ja	short nextchr
   351 000002A0 29C2                    	sub	edx, eax
   352                                  	; edx = asciiz string length
   353                                  	;
   354                                  	sys	_write, 1, eax
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 000002A2 BB01000000          <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 000002A7 89C1                <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 000002A9 B804000000          <1>  mov eax, %1
    83 000002AE CD30                <1>  int 30h
   355 000002B0 C3                      	retn
   356                                  
   357                                  ; 25/06/2022
   358                                  ;-----------------------------------------------------------------
   359                                  
   360                                  getchar:
   361 000002B1 A0[D5060000]            	mov	al, [cchar]
   362 000002B6 08C0                    	or	al, al
   363 000002B8 7408                    	jz	short getchar_1
   364 000002BA C605[D5060000]00        	mov	byte [cchar], 0
   365 000002C1 C3                      	retn
   366                                  getchar_1:
   367 000002C2 F605[D4060000]FF        	test	byte [eof], 0FFh
   368 000002C9 7403                    	jz	short getchar_2
   369 000002CB B00A                    	mov	al, 10 ; lf, nextline
   370 000002CD C3                      	retn
   371                                  getchar_2:
   372 000002CE E857000000              	call	getc
   373 000002D3 7308                    	jnc	short getchar_ok
   374 000002D5 FE05[D4060000]          	inc	byte [eof]
   375 000002DB EBD4                    	jmp	short getchar
   376                                  getchar_ok:
   377                                  readf_ok:
   378 000002DD C3                      	retn
   379                                  
   380                                  ; 25/06/2022
   381                                  ;-----------------------------------------------------------------
   382                                  
   383                                  readf:
   384 000002DE E8CEFFFFFF              	call	getchar
   385 000002E3 A2[D5060000]            	mov	[cchar], al
   386 000002E8 F605[D4060000]FF        	test	byte [eof], 0FFh
   387 000002EF 74EC                    	jz	short readf_ok
   388                                  readf_err:
   389 000002F1 F9                      	stc
   390 000002F2 C3                      	retn
   391                                  
   392                                  ; 25/06/2022
   393                                  ;-----------------------------------------------------------------
   394                                  
   395                                  write_pg_num:
   396                                  	; eax = page number (<= 65535)
   397 000002F3 29C9                    	sub	ecx, ecx
   398 000002F5 B10A                    	mov	cl, 10
   399 000002F7 31D2                    	xor	edx, edx
   400                                  w_pnum_1:
   401 000002F9 F7F1                    	div	ecx
   402 000002FB 52                      	push	edx
   403 000002FC 21C0                    	and	eax, eax
   404 000002FE 7405                    	jz	short w_pnum_2
   405 00000300 E8EEFFFFFF              	call	write_pg_num
   406                                  w_pnum_2:	
   407 00000305 58                      	pop	eax
   408 00000306 0430                    	add	al, '0'
   409                                  writechar:
   410 00000308 A2[D6060000]            	mov	[chr], al
   411                                  	sys	_write, [prnfnum], chr, 1
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74 0000030D 8B1D[DC060000]      <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76 00000313 B9[D6060000]        <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78 00000318 BA01000000          <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 0000031D B804000000          <1>  mov eax, %1
    83 00000322 CD30                <1>  int 30h
   412 00000324 A0[D6060000]            	mov	al, [chr]
   413 00000329 C3                      	retn		
   414                                  	
   415                                  
   416                                  ; 25/06/2022
   417                                  ;-----------------------------------------------------------------
   418                                  ; get characters from input file
   419                                  
   420                                  getc:
   421 0000032A A1[E4060000]            	mov	eax, [fbuf+4] ; character count
   422 0000032F 21C0                    	and	eax, eax
   423 00000331 7522                    	jnz	short gch1
   424                                  gch0:
   425 00000333 8B1D[E0060000]          	mov	ebx, [fbuf] ; file descriptor/number
   426 00000339 B9[EC060000]            	mov	ecx, fbuf + 12 ; read buffer address
   427 0000033E 890D[E8060000]          	mov 	[fbuf+8], ecx ; character offset
   428 00000344 29D2                    	sub	edx, edx
   429 00000346 B280                    	mov	dl, 128
   430                                  	sys	_read ; sys _read, ebx, ecx, edx
    70                              <1> 
    71                              <1> 
    72                              <1> 
    73                              <1>  %if %0 >= 2
    74                              <1>  mov ebx, %2
    75                              <1>  %if %0 >= 3
    76                              <1>  mov ecx, %3
    77                              <1>  %if %0 = 4
    78                              <1>  mov edx, %4
    79                              <1>  %endif
    80                              <1>  %endif
    81                              <1>  %endif
    82 00000348 B803000000          <1>  mov eax, %1
    83 0000034D CD30                <1>  int 30h
   431 0000034F 721C                    	jc	short gch2
   432 00000351 09C0                    	or	eax, eax
   433 00000353 741A                    	jz	short gch3
   434                                  gch1:
   435 00000355 48                      	dec	eax
   436 00000356 A3[E4060000]            	mov	[fbuf+4], eax ; character count in buffer
   437 0000035B 8B1D[E8060000]          	mov	ebx, [fbuf+8] ; current character offset
   438                                  	;xor	eax, eax
   439 00000361 30E4                    	xor	ah, ah
   440 00000363 8A03                    	mov	al, [ebx]
   441 00000365 43                      	inc	ebx
   442 00000366 891D[E8060000]          	mov	[fbuf+8], ebx ; next character offset
   443 0000036C C3                      	retn 	
   444                                  gch2:
   445 0000036D 31C0                    	xor	eax, eax
   446                                  gch3:
   447 0000036F F9                      	stc
   448 00000370 C3                      	retn
   449                                  
   450                                  ; 25/06/2022
   451                                  ;=================================================================
   452                                  %include 'ctime386.s'
   453                              <1> ; ****************************************************************************
   454                              <1> ; ctime386.inc (Retro Unix 386 v1 - /bin/ls - list file or directory)
   455                              <1> ; ----------------------------------------------------------------------------
   456                              <1> ; RETRO UNIX 386 (Retro Unix == Turkish Rational Unix)
   457                              <1> ; Operating System Project (v0.2) by ERDOGAN TAN (Beginning: 24/12/2013)
   458                              <1> ;
   459                              <1> ; [ Last Modification: 25/02/2022 ]
   460                              <1> ;
   461                              <1> ; Derived from 'CTIME.INC' source code file of 'Retro UNIX 8086 v1'
   462                              <1> ; operating system project, /bin/ls source code by Erdogan Tan
   463                              <1> ; (28/11/2013)
   464                              <1> ;
   465                              <1> ; Derived from 'ctime.c' file of original UNIX v5 (usr/source/s3/ctime.c)
   466                              <1> ;
   467                              <1> ; ls386.s (ls0.s) 23/09/2015 - 06/10/2015
   468                              <1> ; include ctime386.inc
   469                              <1> ;
   470                              <1> ; ****************************************************************************
   471                              <1> ; ctime386.s (06/10/2015 - 21/02/2022)
   472                              <1> 
   473                              <1> ; Assembler: NASM 2.11 (NASM 2.15, 2022)
   474                              <1> 
   475                              <1> ;timezone equ 5*60*60
   476                              <1> 
   477                              <1> ctime:  ; ctime(at)
   478                              <1> 	; int *at;
   479                              <1> 	; {
   480                              <1> 	; 	return(asctime(localtime(at)));
   481                              <1> 	; }
   482                              <1> 
   483                              <1> 	; EAX = unix epoch time (in seconds)
   484                              <1> 
   485                              <1> 	;call localtime
   486                              <1> 	;call asctime
   487                              <1> 
   488                              <1> 	;retn
   489                              <1>   
   490                              <1> localtime:
   491                              <1> 	; localtime(tim)
   492                              <1> 	; int tim[];
   493                              <1> 	; 	{
   494                              <1> 	;		register int *t, *ct, dayno;
   495                              <1> 	;	int daylbegin, daylend;
   496                              <1> 	;	int copyt[2];
   497                              <1> 	;	t = copyt;
   498                              <1> 	;	t[0] = tim[0];
   499                              <1> 	;	t[1] = tim[1];
   500                              <1> 	;	dpadd(t, -timezone);
   501                              <1> 	;	ct = gmtime(t);
   502                              <1> 	;	dayno = ct[YDAY];
   503                              <1> 	;	if (nixonflg && (ct[YEAR]>74 || ct[YEAR]==74 && (dayno > 5 ||
   504                              <1> 	;	    dayno==5 && ct[HOUR]>=2))) {
   505                              <1> 	;		daylight =| 1;
   506                              <1> 	;		daylbegin = -1;
   507                              <1> 	;		daylend = 367;
   508                              <1> 	;	} else {
   509                              <1> 	;		daylbegin = sunday(ct, 119);	/* last Sun in Apr */
   510                              <1> 	;		daylend = sunday(ct, 303);	/* last Sun in Oct */
   511                              <1> 	;	}
   512                              <1> 	;	if (daylight &&
   513                              <1> 	;	    (dayno>daylbegin || (dayno==daylbegin && ct[HOUR]>=2)) &&
   514                              <1> 	;	    (dayno<daylend || (dayno==daylend && ct[HOUR]<1))) {
   515                              <1> 	;		dpadd(t, 1*60*60);
   516                              <1> 	;		ct = gmtime(t);
   517                              <1> 	;		ct[ISDAY]++;
   518                              <1> 	;	}
   519                              <1> 	;	return(ct);
   520                              <1> 	;	}
   521                              <1> 
   522                              <1> 	;sub	eax, timezone	
   523                              <1> 
   524                              <1> 	;push	eax
   525                              <1> 
   526 00000371 E882000000          <1> 	call 	gmtime
   527                              <1> ; if (nixonflg && (ct[YEAR]>74 || ct[YEAR]==74 && (dayno > 5 ||
   528                              <1> ;     dayno==5 && ct[HOUR]>=2))) {
   529                              <1> 	;cmp	byte [nixonflg], 0
   530                              <1> 	;jna	short lt1
   531                              <1> 	;cmp	word [year], 1974
   532                              <1> 	;jb	short lt1
   533                              <1> 	;ja	short lt0
   534                              <1> 	;cmp	word [yday], 5
   535                              <1> 	;jb	short lt1
   536                              <1> 	;ja	short lt0 
   537                              <1> 	;cmp	word [hour], 2
   538                              <1> 	;jb	short lt1
   539                              <1> ; nixonflag > 0
   540                              <1> ;lt0:
   541                              <1> 	;mov	word [daylight], 1
   542                              <1> 	;mov	word [daylbegin], -1
   543                              <1> 	;mov	word [daylend], 367
   544                              <1> ;	;jmp	short lt2
   545                              <1> 
   546                              <1> ; } else {
   547                              <1> ;lt1:
   548                              <1> ;	mov	cx, 119
   549                              <1> ;	call	sunday ; sunday(ct, 119); /* last Sun in Apr */
   550                              <1> ;	mov	[daylbegin], cx
   551                              <1> ;	mov	cx, 303
   552                              <1> ;	call	sunday ; sunday(ct, 303); /* last Sun in Oct */	
   553                              <1> ;	mov	[daylend], cx
   554                              <1> ;lt2:
   555                              <1> ; if (daylight &&
   556                              <1> ;    (dayno>daylbegin || (dayno==daylbegin && ct[HOUR]>=2)) &&
   557                              <1> ;    (dayno<daylend || (dayno==daylend && ct[HOUR]<1))) {
   558                              <1> 
   559                              <1> ;	pop	eax
   560                              <1> 
   561                              <1> 	;cmp	byte [daylight], 0
   562                              <1> 	;jna	short lt5
   563                              <1> 	
   564                              <1> 	;mov	cx, [yday]
   565                              <1> 
   566                              <1> 	;cmp	cx, [daylbegin]
   567                              <1> 	;jb	short lt5
   568                              <1> 	;ja	short lt3
   569                              <1> 	;cmp	word [hour], 2
   570                              <1> 	;jb	short lt5
   571                              <1> 	;jmp	short lt4
   572                              <1> ;lt3:
   573                              <1> 	;cmp	cx, [daylend]
   574                              <1> 	;jb	short lt4
   575                              <1> 	;ja	short lt5
   576                              <1> 	;cmp	word [hour], 1
   577                              <1> 	;jnb	short lt5
   578                              <1> ;lt4:
   579                              <1> 	;add	eax, 1*60*60
   580                              <1> 	;call	gmtime
   581                              <1> 	;inc	word [isday]
   582                              <1> ;lt5:
   583                              <1> ;	}
   584                              <1> ;	return(ct);
   585                              <1> ;	}
   586                              <1> 
   587                              <1> 	;retn
   588                              <1> 
   589                              <1> 	; 21/02/2022 (Retro UNIX 386 v1&v1.1&v1.2)
   590                              <1> asctime:
   591                              <1> 	; asctime(t)
   592                              <1> 	;int *t;
   593                              <1> 	;{
   594                              <1> 	;	register char *cp, *ncp;
   595                              <1> 	;	register int *tp;
   596                              <1> 	;
   597                              <1> 	;	cp = cbuf;
   598                              <1> 	;	for (ncp = "Day Mon 00 00:00:00 1900\n"; *cp++ = *ncp++;);
   599                              <1> 	;	ncp = &"SunMonTueWedThuFriSat"[3*t[6]];
   600                              <1> 	;	cp = cbuf;
   601                              <1> 	;	*cp++ = *ncp++;
   602                              <1> 	;	*cp++ = *ncp++;
   603                              <1> 	;	*cp++ = *ncp++;
   604                              <1> 	;	cp++;
   605                              <1> 	;	tp = &t[4];
   606                              <1> 	;	ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(*tp)*3];
   607                              <1> 	;	*cp++ = *ncp++;
   608                              <1> 	;	*cp++ = *ncp++;
   609                              <1> 	;	*cp++ = *ncp++;
   610                              <1> 	;	cp = numb(cp, *--tp);
   611                              <1> 	;	cp = numb(cp, *--tp+100);
   612                              <1> 	;	cp = numb(cp, *--tp+100);
   613                              <1> 	;	cp = numb(cp, *--tp+100);
   614                              <1> 	;	cp =+ 2;
   615                              <1> 	;	cp = numb(cp, t[YEAR]);
   616                              <1> 	;	return(cbuf);
   617                              <1> 	;}
   618                              <1> 	
   619                              <1> 	;;mov	edi, cbuf
   620                              <1> 	;;mov	esi, ncp0
   621                              <1> 	;;mov	ecx, 13
   622                              <1> 	;;movsw	
   623                              <1> 	;
   624 00000376 BF[48050000]        <1> 	mov	edi, cbuf	
   625                              <1> 	;movzx	esi, word [wday]
   626                              <1> 	;shl	si, 2
   627                              <1> 	;add	esi, ncp1
   628                              <1> 	;movsd
   629 0000037B 0FB735[DE040000]    <1> 	movzx	esi, word [month]
   630                              <1> 	;shl	si, 2
   631 00000382 C1E602              <1> 	shl	esi, 2 ; 21/02/2022
   632 00000385 81C6[14050000]      <1> 	add	esi, ncp2 - 4
   633 0000038B A5                  <1> 	movsd
   634                              <1> 	;movzx eax, word [day]
   635 0000038C 66A1[DC040000]      <1> 	mov	ax, [day]
   636                              <1> 	;mov	cx, 10
   637 00000392 B10A                <1> 	mov	cl, 10
   638 00000394 E824010000          <1> 	call	numb
   639 00000399 B020                <1>  	mov	al, 20h
   640 0000039B AA                  <1> 	stosb
   641                              <1> 	;
   642 0000039C 66A1[E0040000]      <1> 	mov	ax, [year]
   643 000003A2 B564                <1> 	mov	ch, 100
   644 000003A4 F6F5                <1> 	div	ch
   645                              <1> 	;push	ax ;
   646                              <1> 	; 21/02/2022
   647 000003A6 50                  <1> 	push	eax
   648 000003A7 6698                <1> 	cbw ; century (19, 20)
   649 000003A9 E80F010000          <1> 	call	numb
   650                              <1> 	;pop	ax
   651                              <1> 	; 21/02/2022
   652 000003AE 58                  <1> 	pop	eax
   653 000003AF 88E0                <1> 	mov	al, ah
   654 000003B1 6698                <1> 	cbw ;	year (0 to 99)
   655 000003B3 E805010000          <1> 	call	numb
   656 000003B8 B020                <1> 	mov 	al, 20h
   657 000003BA AA                  <1> 	stosb
   658                              <1> 	;
   659                              <1> 	;movzx   esi, word [wday]
   660                              <1> 	; 21/02/2022
   661 000003BB 668B35[E2040000]    <1> 	mov	si, [wday]
   662                              <1> 	;shl	si, 2
   663 000003C2 C1E602              <1> 	shl	esi, 2 ; 21/02/2022
   664 000003C5 81C6[FC040000]      <1> 	add	esi, ncp1
   665 000003CB A5                  <1> 	movsd
   666                              <1> 	;
   667 000003CC 66A1[DA040000]      <1> 	mov	ax, [hour]
   668 000003D2 E8E6000000          <1> 	call	numb
   669 000003D7 B03A                <1>  	mov	al, ':'
   670 000003D9 AA                  <1> 	stosb
   671 000003DA 66A1[D8040000]      <1> 	mov	ax, [minute]
   672 000003E0 E8D8000000          <1> 	call	numb
   673 000003E5 B03A                <1>  	mov	al, ':'
   674 000003E7 AA                  <1> 	stosb
   675 000003E8 66A1[D6040000]      <1> 	mov	ax, [second]
   676 000003EE E8CA000000          <1> 	call	numb
   677 000003F3 B020                <1>  	mov	al, 20h
   678 000003F5 AA                  <1> 	stosb
   679                              <1> 	;mov	ax, [year]
   680                              <1> 	;mov	ch, 100
   681                              <1> 	;div	ch
   682                              <1> 	;push	ax ;
   683                              <1> 	;cbw ; century (19, 20)
   684                              <1> 	;call	numb
   685                              <1> 	;pop	ax
   686                              <1> 	;mov	al, ah
   687                              <1> 	;cbw ;	year (0 to 99)
   688                              <1> 	;call	numb
   689                              <1> 	;mov	al, 20h
   690                              <1> 	;stosb
   691                              <1> 	;xor	al, al
   692                              <1> 	;stosb
   693                              <1> 
   694                              <1> 	; 25/02/2022
   695 000003F6 AA                  <1> 	stosb
   696                              <1> 
   697 000003F7 C3                  <1> 	retn
   698                              <1> 
   699                              <1> gmtime:
   700                              <1> 	; 21/02/2022 (Retro UNIX 386 v1&v1.1&v1.2)
   701                              <1> 	; 24/11/2013 (yday, wday)
   702                              <1> 	; Retro UNIX 8086 v1 - UNIX.ASM (20/06/2013)
   703                              <1> 	; Retro UNIX 8086 v1 feature/procedure only!
   704                              <1> 	; 'convert_from_epoch' procedure prototype: 
   705                              <1> 	; 	            UNIXCOPY.ASM, 10/03/2013
   706                              <1> 	; 30/11/2012
   707                              <1> 	; Derived from DALLAS Semiconductor
   708                              <1> 	; Application Note 31 (DS1602/DS1603)
   709                              <1> 	; 6 May 1998
   710                              <1> 	;
   711                              <1> 	; INPUT:
   712                              <1> 	; DX:AX = Unix (Epoch) Time
   713                              <1> 	;
   714                              <1> 	; ((Modified registers: AX, DX, CX, BX))  
   715                              <1> 	;
   716 000003F8 31D2                <1> 	xor edx, edx
   717                              <1> 	;mov ecx, 60
   718                              <1> 	; 21/02/2022
   719 000003FA 31C9                <1> 	xor ecx, ecx
   720 000003FC B13C                <1> 	mov cl, 60
   721 000003FE F7F1                <1> 	div ecx
   722                              <1> 	;mov [imin], eax     	  ; whole minutes
   723                              <1> 				  ; since 1/1/1970
   724 00000400 668915[D6040000]    <1> 	mov [second], dx  	  ; leftover seconds
   725                              <1> 	;mov ecx, 60
   726 00000407 29D2                <1> 	sub edx, edx
   727 00000409 F7F1                <1> 	div ecx
   728                              <1> 	;mov [ihrs], eax   	  ; whole hours
   729                              <1> 				  ; since 1/1/1970
   730 0000040B 668915[D8040000]    <1> 	mov [minute], dx  	  ; leftover minutes
   731                              <1> 	;mov ecx, 24
   732 00000412 31D2                <1> 	xor edx, edx
   733 00000414 B118                <1> 	mov cl, 24
   734 00000416 F7F1                <1> 	div ecx
   735                              <1> 	;mov [iday], ax  	  ; whole days
   736                              <1> 				  ; since 1/1/1970
   737 00000418 66A3[E2040000]      <1> 	mov [wday], ax 		  ; 24/11/2013	
   738 0000041E 668915[DA040000]    <1> 	mov [hour], dx   	  ; leftover hours
   739 00000425 05DB020000          <1> 	add eax, 365+366	  ; whole day since
   740                              <1> 				  ; 1/1/1968 	
   741                              <1> 	;mov [iday], ax
   742 0000042A 50                  <1> 	push eax
   743 0000042B 66B9B505            <1> 	mov cx, (4*365)+1	  ; 4 years = 1461 days
   744 0000042F 29D2                <1> 	sub edx, edx
   745 00000431 F7F1                <1> 	div ecx
   746 00000433 59                  <1> 	pop ecx
   747                              <1> 	;mov [lday], ax  	  ; count of quadyrs (4 years)
   748 00000434 52                  <1> 	push edx
   749                              <1> 	;mov [qday], dx           ; days since quadyr began
   750 00000435 6683FA3C            <1> 	cmp dx, 31+29             ; if past feb 29 then
   751 00000439 F5                  <1> 	cmc			  ; add this quadyr's leap day
   752 0000043A 83D000              <1> 	adc eax, 0		  ; to # of qadyrs (leap days)
   753                              <1> 	;mov [lday], ax  	  ; since 1968			  
   754                              <1> 	;mov cx, [iday]
   755 0000043D 91                  <1> 	xchg ecx, eax		  ; CX = lday, AX = iday		  
   756 0000043E 29C8                <1> 	sub eax, ecx		  ; iday - lday
   757                              <1> 	;mov ecx, 365
   758 00000440 66B96D01            <1> 	mov cx, 365
   759 00000444 31D2                <1> 	xor edx, edx		  ; DX  = 0
   760                              <1> 	; EAX = iday-lday
   761 00000446 F7F1                <1> 	div ecx
   762                              <1> 	;mov [iyrs], ax		  ; whole years since 1968
   763                              <1> 	; jday = iday - (iyrs*365) - lday
   764                              <1> 	;mov [jday], dx  	  ; days since 1/1 of current year
   765                              <1> 	;add eax, 1968		  ; compute year
   766 00000448 05B0070000          <1> 	add eax, 1968
   767 0000044D 66A3[E0040000]      <1> 	mov [year], ax
   768 00000453 89C3                <1> 	mov ebx, eax		
   769                              <1> 	;mov ax, [qday]
   770 00000455 58                  <1> 	pop eax
   771 00000456 663D6D01            <1> 	cmp ax, 365		  ; if qday <= 365 and qday >= 60	
   772 0000045A 7709                <1> 	ja short L1		  ; jday = jday +1
   773 0000045C 6683F83C            <1> 	cmp ax, 60	          ; if past 2/29 and leap year then
   774 00000460 F5                  <1>         cmc			  ; add a leap day to the # of whole
   775 00000461 6683D200            <1> 	adc dx, 0		  ; days since 1/1 of current year
   776                              <1> L1:			
   777                              <1> 	;mov [jday], dx
   778                              <1> 	;mov [yday], dx 	  ; 24/11/2013	
   779                              <1> 	;mov cx, 12		  ; estimate month
   780                              <1> 	;xchg cx, dx		  ; CX = jday, DX = month 	
   781                              <1> 	; 21/02/2022
   782 00000465 30ED                <1> 	xor ch, ch
   783 00000467 B10C                <1> 	mov cl, 12
   784 00000469 87CA                <1> 	xchg ecx, edx 
   785 0000046B 66B86E01            <1> 	mov ax, 366		  ; mday, max. days since 1/1 is 365
   786 0000046F 6683E303            <1> 	and bx, 11b		  ; year mod 4	(and bx, 3) 
   787                              <1> L2:	; Month calculation	  ; 0 to 11  (11 to 0)	
   788                              <1> 	;cmp cx, ax		  ; mday = # of days passed from 1/1
   789                              <1> 	; 21/02/2022
   790 00000473 39C1                <1> 	cmp ecx, eax
   791 00000475 7319                <1> 	jnb short L3
   792                              <1> 	;dec dx			  ; month = month - 1
   793                              <1> 	; 21/02/2022
   794 00000477 4A                  <1> 	dec edx
   795                              <1> 	;shl dx, 1 
   796 00000478 D1E2                <1> 	shl edx, 1 ; 21/02/2022
   797 0000047A 668B82[E4040000]    <1> 	mov ax, [edx+DMonth] 	  ; # elapsed days at 1st of month
   798                              <1> 	;shr dx, 1		  ; dx = month - 1 (0 to 11)
   799 00000481 D1EA                <1> 	shr edx, 1 ; 21/02/2022
   800 00000483 6683FA01            <1> 	cmp dx, 1		  ; if month > 2 and year mod 4  = 0	
   801 00000487 76EA                <1> 	jna short L2		  ; then mday = mday + 1
   802 00000489 08DB                <1> 	or bl, bl		  ; if past 2/29 and leap year then
   803 0000048B 75E6                <1> 	jnz short L2		  ; add leap day (to mday)
   804                              <1> 	;inc ax			  ; mday = mday + 1
   805                              <1> 	; 21/02/2022
   806 0000048D 40                  <1> 	inc eax
   807 0000048E EBE3                <1> 	jmp short L2
   808                              <1> L3:
   809                              <1> 	;inc dx 		  ; -> dx = month, 1 to 12
   810                              <1> 	; 21/02/2022
   811 00000490 42                  <1> 	inc edx
   812 00000491 668915[DE040000]    <1> 	mov [month], dx
   813                              <1> 	;sub cx, ax		  ; day = jday - mday + 1	
   814                              <1> 	;inc cx 			  
   815                              <1> 	; 21/02/2022
   816 00000498 29C1                <1> 	sub ecx, eax
   817 0000049A 41                  <1> 	inc ecx	
   818 0000049B 66890D[DC040000]    <1> 	mov [day], cx
   819                              <1> 	
   820                              <1> 	; eax, ebx, ecx, edx are changed at return
   821                              <1> 	; output ->
   822                              <1> 	; [year], [month], [day], [hour], [minute], [second]
   823                              <1> 	; [yday] -> 24/11/2013
   824                              <1> 	; [wday] -> 24/11/2013
   825                              <1> 	;
   826                              <1> 	; 24/11/2013
   827 000004A2 66A1[E2040000]      <1> 	mov ax, [wday] ; [iday]
   828                              <1> 	;xor dx, dx
   829 000004A8 31D2                <1> 	xor edx, edx ; 21/02/2022
   830 000004AA 6683C004            <1> 	add ax, 4
   831                              <1> 	; NOTE: January 1, 1970 was THURSDAY
   832                              <1> 	; ch = 0
   833 000004AE B107                <1> 	mov cl, 7
   834 000004B0 66F7F1              <1> 	div cx
   835 000004B3 668915[E2040000]    <1> 	mov [wday], dx ; week of the day,  0 to 6 
   836                              <1> 	; 0 = sunday ... 6 = saturday
   837                              <1> 	;mov word [isday], 0
   838                              <1> 
   839 000004BA C3                  <1> 	retn
   840                              <1> 
   841                              <1> ;sunday:
   842                              <1> 	; sunday(at, ad)
   843                              <1> 	; 	int *at;
   844                              <1> 	;	 {
   845                              <1> 	; 	register int *t, d;
   846                              <1> 	; 	t = at;
   847                              <1> 	; 	d = ad;
   848                              <1> 	; 	d = ad + dysize(t[YEAR]) - 365;
   849                              <1> 	; 	return(d - (d - t[YDAY] + t[WDAY] + 700) % 7);
   850                              <1> 	; 	}
   851                              <1> 
   852                              <1> 	;mov	dx, [year]
   853                              <1> 	;call	dysize
   854                              <1> 	;sub	ax, 365
   855                              <1> 	; add 	cx, ax
   856                              <1> ;	test	word [year], 11b
   857                              <1> ;	jnz	short sunday1
   858                              <1> 	; CX = 119 (77h) or CX = 303 (12Fh)
   859                              <1> 	;inc	cx
   860                              <1> ;	inc	cl
   861                              <1> ;sunday1:
   862                              <1> ;	mov	ax, cx
   863                              <1> ;	add	ax, [wday]
   864                              <1> 	;adc	ax, 700
   865                              <1> ;	add	ax, 700
   866                              <1> ;	sub	ax, [yday]
   867                              <1> 	;xor	dx, dx
   868                              <1> ;	mov	bx, 7
   869                              <1> 	;div	bx
   870                              <1> ;	div	bl
   871                              <1> ;	sub	cx, bx
   872                              <1> ;	retn
   873                              <1> 
   874                              <1> ;dysize:
   875                              <1> ; dysize(y)
   876                              <1> ;	{
   877                              <1> ;	if((y%4) == 0)
   878                              <1> ;		return(366);
   879                              <1> ;	return(365);
   880                              <1> ;	}
   881                              <1> 
   882                              <1> ;	mov 	ax, 365	
   883                              <1> ;	test 	dx, 11b
   884                              <1> ;	jnz 	short dysize1
   885                              <1> ;	;inc 	ax
   886 000004BB FEC0                <1> 	inc 	al			
   887                              <1> ;dysize1:	
   888                              <1> ;	retn 
   889                              <1> 
   890                              <1> numb:   ; AX = 0 to 99
   891                              <1> 	;
   892                              <1> 	; numb(acp, n)
   893                              <1> 	; {
   894                              <1> 	;	register char *cp;
   895                              <1> 	;
   896                              <1> 	;	cp = acp;
   897                              <1> 	;	cp++;
   898                              <1> 	;	if (n>=10)
   899                              <1> 	;	   *cp++ = (n/10)%10 + '0';
   900                              <1> 	;	else
   901                              <1> 	;	   *cp++ = ' ';
   902                              <1> 	;	*cp++ = n%10 + '0';
   903                              <1> 	;	return(cp);
   904                              <1> 	; }
   905                              <1> 	;
   906                              <1> 	;mov	cl, 10
   907 000004BD 6683F80A            <1> 	cmp 	ax, 10
   908 000004C1 7306                <1> 	jnb	short nb1
   909 000004C3 88C4                <1> 	mov	ah, al
   910 000004C5 30C0                <1> 	xor	al, al ; 0
   911 000004C7 EB04                <1> 	jmp	short nb2
   912                              <1> nb1:	
   913 000004C9 F6F1                <1> 	div	cl
   914 000004CB 88E2                <1> 	mov	dl, ah
   915                              <1> 	
   916                              <1> nb2:	
   917 000004CD 0430                <1> 	add	al, '0'
   918 000004CF AA                  <1> 	stosb	; digit 1
   919 000004D0 88E0                <1> 	mov	al, ah
   920 000004D2 0430                <1> 	add	al, '0'
   921 000004D4 AA                  <1> 	stosb	; digit 2
   922 000004D5 C3                  <1> 	retn
   923                              <1> 
   924                              <1> ;;; DATA
   925                              <1> 
   926                              <1> ;daylight: db 1 ; int daylight 1; /* Allow daylight conversion */
   927                              <1> ;nixonflg: db 0 ; int nixonflg 0; /* Daylight time all year around */
   928                              <1> ;daylbegin: dw 0
   929                              <1> ;daylend: dw 0
   930                              <1> 
   931                              <1> ct:
   932                              <1> ; 24/11/2013 (re-order)
   933                              <1> ;
   934                              <1> ; Retro UNIX 8086 v1 - UNIX.ASM
   935                              <1> ; 09/04/2013 epoch variables
   936                              <1> ; Retro UNIX 8086 v1 Prototype: UNIXCOPY.ASM, 10/03/2013
   937                              <1> ;
   938                              <1> 
   939 000004D6 0000                <1> second: dw 0
   940 000004D8 0000                <1> minute: dw 0
   941 000004DA 0000                <1> hour: dw 0
   942 000004DC 0100                <1> day: dw 1
   943 000004DE 0100                <1> month: dw 1
   944 000004E0 B207                <1> year: dw 1970
   945 000004E2 0000                <1> wday: dw 0 ; 24/11/2013
   946                              <1> ;yday: dw 0 ; 24/11/2013
   947                              <1> ;isday: dw 0 ; 24/11/2013
   948                              <1> 
   949                              <1> DMonth:
   950 000004E4 0000                <1> dw 0
   951 000004E6 1F00                <1> dw 31
   952 000004E8 3B00                <1> dw 59
   953 000004EA 5A00                <1> dw 90
   954 000004EC 7800                <1> dw 120
   955 000004EE 9700                <1> dw 151
   956 000004F0 B500                <1> dw 181
   957 000004F2 D400                <1> dw 212
   958 000004F4 F300                <1> dw 243
   959 000004F6 1101                <1> dw 273
   960 000004F8 3001                <1> dw 304
   961 000004FA 4E01                <1> dw 334
   962                              <1> 
   963                              <1> ;ncp0: db "Day Mon 00 00:00:00 1970", 0, 0
   964 000004FC 53756E204D6F6E2054- <1> ncp1: db "Sun Mon Tue Wed Thu Fri Sat "
   964 00000505 756520576564205468- <1>
   964 0000050E 752046726920536174- <1>
   964 00000517 20                  <1>
   965 00000518 4A616E20466562204D- <1> ncp2: db "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec "
   965 00000521 617220417072204D61- <1>
   965 0000052A 79204A756E204A756C- <1>
   965 00000533 204175672053657020- <1>
   965 0000053C 4F6374204E6F762044- <1>
   965 00000545 656320              <1>
   966                              <1> 
   967                              <1> cbuf: 	; char cbuf[26]
   968                              <1> 	;times 26 db 0
   969                              <1> 	; 25/02/2022
   970 00000548 00<rep 1Bh>         <1> 	times 27 db 0	
   971                              <1> 
   972                              <1> ;; ctime.c (Unix v5)
   973                              <1> ;
   974                              <1> ;#
   975                              <1> ;/*
   976                              <1> ; * This routine converts time as follows.
   977                              <1> ; * The epoch is 0000 Jan 1 1970 GMT.
   978                              <1> ; * The argument time is in seconds since then.
   979                              <1> ; * The localtime(t) entry returns a pointer to an array
   980                              <1> ; * containing
   981                              <1> ; *  seconds (0-59)
   982                              <1> ; *  minutes (0-59)
   983                              <1> ; *  hours (0-23)
   984                              <1> ; *  day of month (1-31)
   985                              <1> ; *  month (0-11)
   986                              <1> ; *  year-1970
   987                              <1> ; *  weekday (0-6, Sun is 0)
   988                              <1> ; *  day of the year
   989                              <1> ; *  daylight savings flag
   990                              <1> ; *
   991                              <1> ; * The routine corrects for daylight saving
   992                              <1> ; * time and will work in any time zone provided
   993                              <1> ; * "timezone" is adjusted to the difference between
   994                              <1> ; * Greenwich and local standard time (measured in seconds).
   995                              <1> ; * In places like Michigan "daylight" must
   996                              <1> ; * be initialized to 0 to prevent the conversion
   997                              <1> ; * to daylight time.
   998                              <1> ; *
   999                              <1> ; * "nixonflg,", if set to 1, will
  1000                              <1> ; * cause daylight savings time all year around
  1001                              <1> ; * independently of "daylight".
  1002                              <1> ; *
  1003                              <1> ; * The routine does not work
  1004                              <1> ; * in Saudi Arabia which runs on Solar time.
  1005                              <1> ; *
  1006                              <1> ; * asctime(tvec))
  1007                              <1> ; * where tvec is produced by localtime
  1008                              <1> ; * returns a ptr to a character string
  1009                              <1> ; * that has the ascii time in the form
  1010                              <1> ; *	Thu Jan 01 00:00:00 1970n0\; *	01234567890123456789012345
  1012                              <1> ; *	0	  1	    2
  1013                              <1> ; *
  1014                              <1> ; * ctime(t) just calls localtime, then asctime.
  1015                              <1> ; */
  1016                              <1> ;char	cbuf[26];
  1017                              <1> ;int	dmsize[12]
  1018                              <1> ;{
  1019                              <1> ;	31,
  1020                              <1> ;	28,
  1021                              <1> ;	31,
  1022                              <1> ;	30,
  1023                              <1> ;	31,
  1024                              <1> ;	30,
  1025                              <1> ;	31,
  1026                              <1> ;	31,
  1027                              <1> ;	30,
  1028                              <1> ;	31,
  1029                              <1> ;	30,
  1030                              <1> ;	31
  1031                              <1> ;};
  1032                              <1> ;
  1033                              <1> ;int timezone	5*60*60;
  1034                              <1> ;int tzname[]
  1035                              <1> ;{
  1036                              <1> ;	"EST",
  1037                              <1> ;	"EDT",
  1038                              <1> ;};
  1039                              <1> ;int	daylight 1;	/* Allow daylight conversion */
  1040                              <1> ;int	nixonflg 0;	/* Daylight time all year around */
  1041                              <1> ;
  1042                              <1> ;#define SEC	0
  1043                              <1> ;#define MIN	1
  1044                              <1> ;#define HOUR	2
  1045                              <1> ;#define MDAY	3 
  1046                              <1> ;#define MON	4
  1047                              <1> ;#define YEAR	5
  1048                              <1> ;#define WDAY	6
  1049                              <1> ;#define YDAY	7
  1050                              <1> ;#define ISDAY	8
  1051                              <1> ;
  1052                              <1> ;ctime(at)
  1053                              <1> ;int *at;
  1054                              <1> ;{
  1055                              <1> ;	return(asctime(localtime(at)));
  1056                              <1> ;}
  1057                              <1> ;
  1058                              <1> ;localtime(tim)
  1059                              <1> ;int tim[];
  1060                              <1> ;{
  1061                              <1> ;	register int *t, *ct, dayno;
  1062                              <1> ;	int daylbegin, daylend;
  1063                              <1> ;	int copyt[2];
  1064                              <1> ;
  1065                              <1> ;	t = copyt;
  1066                              <1> ;	t[0] = tim[0];
  1067                              <1> ;	t[1] = tim[1];
  1068                              <1> ;	dpadd(t, -timezone);
  1069                              <1> ;	ct = gmtime(t);
  1070                              <1> ;	dayno = ct[YDAY];
  1071                              <1> ;	if (nixonflg && (ct[YEAR]>74 || ct[YEAR]==74 && (dayno > 5 ||
  1072                              <1> ;	    dayno==5 && ct[HOUR]>=2))) {
  1073                              <1> ;		daylight =| 1;
  1074                              <1> ;		daylbegin = -1;
  1075                              <1> ;		daylend = 367;
  1076                              <1> ;	} else {
  1077                              <1> ;		daylbegin = sunday(ct, 119);	/* last Sun in Apr */
  1078                              <1> ;		daylend = sunday(ct, 303);	/* last Sun in Oct */
  1079                              <1> ;	}
  1080                              <1> ;	if (daylight &&
  1081                              <1> ;	    (dayno>daylbegin || (dayno==daylbegin && ct[HOUR]>=2)) &&
  1082                              <1> ;	    (dayno<daylend || (dayno==daylend && ct[HOUR]<1))) {
  1083                              <1> ;		dpadd(t, 1*60*60);
  1084                              <1> ;		ct = gmtime(t);
  1085                              <1> ;		ct[ISDAY]++;
  1086                              <1> ;	}
  1087                              <1> ;	return(ct);
  1088                              <1> ;}
  1089                              <1> ;
  1090                              <1> ;sunday(at, ad)
  1091                              <1> ;int *at;
  1092                              <1> ;{
  1093                              <1> ;	register int *t, d;
  1094                              <1> ;
  1095                              <1> ;	t = at;
  1096                              <1> ;	d = ad;
  1097                              <1> ;	d = ad + dysize(t[YEAR]) - 365;
  1098                              <1> ;	return(d - (d - t[YDAY] + t[WDAY] + 700) % 7);
  1099                              <1> ;}
  1100                              <1> ;
  1101                              <1> ;gmtime(tim)
  1102                              <1> ;int tim[];
  1103                              <1> ;{
  1104                              <1> ;	register int d0, d1;
  1105                              <1> ;	register *tp;
  1106                              <1> ;	static xtime[9];
  1107                              <1> ;	extern int ldivr;
  1108                              <1> ;
  1109                              <1> ;	/*
  1110                              <1> ;	 * break initial number into
  1111                              <1> ;	 * multiples of 8 hours.
  1112                              <1> ;	 * (28800 = 60*60*8)
  1113                              <1> ;	 */
  1114                              <1> ;
  1115                              <1> ;	d0 = ldiv(tim[0], tim[1], 28800);
  1116                              <1> ;	d1 = ldivr;
  1117                              <1> ;	tp = &xtime[0];
  1118                              <1> ;
  1119                              <1> ;	/*
  1120                              <1> ;	 * generate hours:minutes:seconds
  1121                              <1> ;	 */
  1122                              <1> ;
  1123                              <1> ;	*tp++ = d1%60;
  1124                              <1> ;	d1 =/ 60;
  1125                              <1> ;	*tp++ = d1%60;
  1126                              <1> ;	d1 =/ 60;
  1127                              <1> ;	d1 =+ (d0%3)*8;
  1128                              <1> ;	d0 =/ 3;
  1129                              <1> ;	*tp++ = d1;
  1130                              <1> ;
  1131                              <1> ;	/*
  1132                              <1> ;	 * d0 is the day number.
  1133                              <1> ;	 * generate day of the week.
  1134                              <1> ;	 */
  1135                              <1> ;
  1136                              <1> ;	xtime[WDAY] = (d0+4)%7;
  1137                              <1> ;
  1138                              <1> ;	/*
  1139                              <1> ;	 * year number
  1140                              <1> ;	 */
  1141                              <1> ;	for(d1=70; d0 >= dysize(d1); d1++)
  1142                              <1> ;		d0 =- dysize(d1);
  1143                              <1> ;	xtime[YEAR] = d1;
  1144                              <1> ;	xtime[YDAY] = d0;
  1145                              <1> ;
  1146                              <1> ;	/*
  1147                              <1> ;	 * generate month
  1148                              <1> ;	 */
  1149                              <1> ;
  1150                              <1> ;	if (dysize(d1)==366)
  1151                              <1> ;		dmsize[1] = 29;
  1152                              <1> ;	for(d1=0; d0 >= dmsize[d1]; d1++)
  1153                              <1> ;		d0 =- dmsize[d1];
  1154                              <1> ;	dmsize[1] = 28;
  1155                              <1> ;	*tp++ = d0+1;
  1156                              <1> ;	*tp++ = d1;
  1157                              <1> ;	xtime[ISDAY] = 0;
  1158                              <1> ;	return(xtime);
  1159                              <1> ;}
  1160                              <1> ;
  1161                              <1> ;asctime(t)
  1162                              <1> ;int *t;
  1163                              <1> ;{
  1164                              <1> ;	register char *cp, *ncp;
  1165                              <1> ;	register int *tp;
  1166                              <1> ;
  1167                              <1> ;	cp = cbuf;
  1168                              <1> ;	for (ncp = "Day Mon 00 00:00:00 1900\n"; *cp++ = *ncp++;);
  1169                              <1> ;	ncp = &"SunMonTueWedThuFriSat"[3*t[6]];
  1170                              <1> ;	cp = cbuf;
  1171                              <1> ;	*cp++ = *ncp++;
  1172                              <1> ;	*cp++ = *ncp++;
  1173                              <1> ;	*cp++ = *ncp++;
  1174                              <1> ;	cp++;
  1175                              <1> ;	tp = &t[4];
  1176                              <1> ;	ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(*tp)*3];
  1177                              <1> ;	*cp++ = *ncp++;
  1178                              <1> ;	*cp++ = *ncp++;
  1179                              <1> ;	*cp++ = *ncp++;
  1180                              <1> ;	cp = numb(cp, *--tp);
  1181                              <1> ;	cp = numb(cp, *--tp+100);
  1182                              <1> ;	cp = numb(cp, *--tp+100);
  1183                              <1> ;	cp = numb(cp, *--tp+100);
  1184                              <1> ;	cp =+ 2;
  1185                              <1> ;	cp = numb(cp, t[YEAR]);
  1186                              <1> ;	return(cbuf);
  1187                              <1> ;}
  1188                              <1> ;
  1189                              <1> ;dysize(y)
  1190                              <1> ;{
  1191                              <1> ;	if((y%4) == 0)
  1192                              <1> ;		return(366);
  1193                              <1> ;	return(365);
  1194                              <1> ;}
  1195                              <1> ;
  1196                              <1> ;
  1197                              <1> ;numb:
  1198                              <1> ;	
  1199                              <1> ;
  1200                              <1> ;numb(acp, n)
  1201                              <1> ;{
  1202                              <1> ;	register char *cp;
  1203                              <1> ;	cp = acp;
  1204                              <1> ;	cp++;
  1205                              <1> ;	if (n>=10)
  1206                              <1> ;		*cp++ = (n/10)%10 + '0';
  1207                              <1> ;	else
  1208                              <1> ;		*cp++ = ' ';
  1209                              <1> ;	*cp++ = n%10 + '0';
  1210                              <1> ;	return(cp);
  1211                              <1> ;}
  1212                              <1> ;
   453                                  ;=================================================================
   454                                  
   455                                  ;-----------------------------------------------------------------
   456                                  ;  data - initialized data
   457                                  ;-----------------------------------------------------------------
   458                                  
   459                                  lpt1:
   460 00000563 2F6465762F6C707200      	db '/dev/lpr', 0
   461                                  
   462                                  program_msg:
   463 0000056C 0D0A                    	db  0Dh, 0Ah
   464 0000056E 526574726F20554E49-     	db  'Retro UNIX 386 v1 PRINT Utility by Erdogan TAN - 26/06/2022'
   464 00000577 582033383620763120-
   464 00000580 5052494E5420557469-
   464 00000589 6C6974792062792045-
   464 00000592 72646F67616E205441-
   464 0000059B 4E202D2032362F3036-
   464 000005A4 2F32303232         
   465 000005A9 0D0A00                  	db  0Dh, 0Ah, 0
   466                                  usage_msg:
   467 000005AC 0D0A                    	db  0Dh, 0Ah
   468 000005AE 55736167653A207072-     	db  'Usage: pr [ -rlcm ] filename1 ... '
   468 000005B7 205B202D726C636D20-
   468 000005C0 5D2066696C656E616D-
   468 000005C9 6531202E2E2E20     
   469 000005D0 0D0A                    	db  0Dh, 0Ah
   470 000005D2 09202020204F707469-     	db  '	    Options: '
   470 000005DB 6F6E733A20         
   471 000005E0 0D0A                    	db  0Dh, 0Ah
   472 000005E2 202020202020202020-     	db  '             -r : 66 lines per page (default option)'
   472 000005EB 202020202D72203A20-
   472 000005F4 3636206C696E657320-
   472 000005FD 706572207061676520-
   472 00000606 2864656661756C7420-
   472 0000060F 6F7074696F6E29     
   473 00000616 0D0A                    	db  0Dh, 0Ah	
   474 00000618 202020202020202020-     	db  '             -l : 78 lines per page'
   474 00000621 202020202D6C203A20-
   474 0000062A 3738206C696E657320-
   474 00000633 7065722070616765   
   475 0000063B 0D0A                    	db  0Dh, 0Ah
   476 0000063D 202020202020202020-     	db  '             -m : modification date (default option)'
   476 00000646 202020202D6D203A20-
   476 0000064F 6D6F64696669636174-
   476 00000658 696F6E206461746520-
   476 00000661 2864656661756C7420-
   476 0000066A 6F7074696F6E29     
   477 00000671 0D0A                    	db  0Dh, 0Ah
   478 00000673 202020202020202020-     	db  '             -c : current date'
   478 0000067C 202020202D63203A20-
   478 00000685 63757272656E742064-
   478 0000068E 617465             
   479 00000691 0D0A                    	db  0Dh, 0Ah
   480                                  nextline:
   481 00000693 0D0A00                  	db  0Dh, 0Ah, 0
   482                                  
   483                                  size_pmsg equ usage_msg-(program_msg+1)
   484                                  
   485                                  printer_err_msg:
   486 00000696 0D0A                    	db 0Dh, 0Ah	
   487 00000698 5072696E7465722045-     	db "Printer Error !"
   487 000006A1 72726F722021       
   488 000006A7 0D0A00                   	db 0Dh, 0Ah, 0  		
   489                                  
   490                                  size_umsg equ printer_err_msg-(usage_msg+1)
   491                                  
   492                                  file_err_msg:
   493 000006AA 0D0A                    	db 0Dh, 0Ah	
   494 000006AC 46696C65204572726F-     	db "File Error !"
   494 000006B5 722021             
   495 000006B8 0D0A00                   	db 0Dh, 0Ah, 0  
   496                                  
   497                                  EmptyLines:
   498 000006BB 0D0A0D0A0D0A0D0A0D-     	db 0Dh, 0Ah, 0Dh, 0Ah, 0Dh, 0Ah, 0Dh, 0Ah, 0Dh, 0Ah
   498 000006C4 0A                 
   499 000006C5 2020                    	db 20h, 20h
   500                                  PageHeader:
   501 000006C7 205061676520            	db " Page "
   502                                  
   503 000006CD 42                      rows:	db 66
   504 000006CE 00                      cdatef:	db 0
   505                                  
   506                                  ;-----------------------------------------------------------------
   507                                  ;  bss - uninitialized data
   508                                  ;-----------------------------------------------------------------	
   509                                  
   510 000006CF 90                      align 4
   511                                  
   512                                  bss_start:
   513                                  
   514                                  ABSOLUTE bss_start
   515                                  
   516 000006D0 ??                      argc:	 resb 1
   517 000006D1 ??                      files:	 resb 1
   518 000006D2 ????                    pgnumber: resw 1
   519 000006D4 ??                      eof:	 resb 1
   520 000006D5 ??                      cchar:	 resb 1
   521 000006D6 ??                      chr:	 resb 1
   522 000006D7 ??                      pchr:	 resb 1 ; 10/07/2022
   523 000006D8 ????????                mtime:	 resd 1	
   524 000006DC ????????                prnfnum: resd 1
   525                                  
   526                                  fbuf:
   527                                  txtfnum: 
   528 000006E0 <res 8Ch>               	resb 128+12 ; 26/06/2022
   529                                  stbuf:
   530 0000076C <res 22h>               	resb 34
   531                                  
   532                                  bss_end:
   533                                  
   534                                  ;-----------------------------------------------------------------
   535                                  ; 25/06/2022
   536                                  ;-----------------------------------------------------------------
   537                                  ; Original UNIX v2 - pr (utility) disassembled source code
   538                                  ;-----------------------------------------------------------------
   539                                  
   540                                  ;
   541                                  ; +-------------------------------------------------------------------------+
   542                                  ; |   This file	has been generated by The Interactive Disassembler (IDA)    |
   543                                  ; |	      Copyright	(c) 2013 Hex-Rays, <support@hex-rays.com>	    |
   544                                  ; +-------------------------------------------------------------------------+
   545                                  ;
   546                                  ; File Name   :	C:\Users\Erdoan\Desktop\s2.tar\bin\pr
   547                                  ; Format      :	Binary file
   548                                  ; Base Address:	0000h Range: 4000h - 448Eh Loaded length: 0000048Eh
   549                                  
   550                                  ; Processor	  : PDP11
   551                                  ; Target assembler: Macro-11 Assembler
   552                                  
   553                                  ;.macro .array of,type,cnt,val
   554                                  ;.rept  cnt
   555                                  ; type  val
   556                                  ;.endr
   557                                  ;.endm .array
   558                                  
   559                                  ; ===========================================================================
   560                                  
   561                                  ;; Segment type:	Regular
   562                                  ;.PSECT RAM
   563                                  ;byte_0:		.blkb  40000
   564                                  ;; ---------------------------------------------------------------------------
   565                                  ;
   566                                  ;loc_40000:
   567                                  ;		br	loc_40014
   568                                  ;; ---------------------------------------------------------------------------
   569                                  ;		.word 2216
   570                                  ;		.word 0
   571                                  ;		.word 0
   572                                  ;		.word 0
   573                                  ;		.word 0
   574                                  ;; ---------------------------------------------------------------------------
   575                                  ;
   576                                  ;loc_40014:				
   577                                  ;		trap	33
   578                                  ;; ---------------------------------------------------------------------------
   579                                  ;		.word intr_loc
   580                                  ;; ---------------------------------------------------------------------------
   581                                  ;		mov	(SP)+, argc
   582                                  ;		tst	(SP)+
   583                                  ;		clr	R0
   584                                  ;		trap	34
   585                                  ;; ---------------------------------------------------------------------------
   586                                  ;		.word fnum
   587                                  ;; ---------------------------------------------------------------------------
   588                                  ;		bit	#1, statbuf
   589                                  ;		beq	chmod_err
   590                                  ;		trap	22
   591                                  ;; ---------------------------------------------------------------------------
   592                                  ;		.word ttyx		; "/dev/tty0"
   593                                  ;		.word statbuf
   594                                  ;; ---------------------------------------------------------------------------
   595                                  ;		mov	fnum, R0
   596                                  ;		sub	statbuf, R0
   597                                  ;		add	#60, R0	; '0'
   598                                  ;		movb	R0, ttyx+10
   599                                  ;		trap	17
   600                                  ;; ---------------------------------------------------------------------------
   601                                  ;		.word ttyx		; "/dev/tty0"
   602                                  ;		.word 14
   603                                  ;; ---------------------------------------------------------------------------
   604                                  ;		bcs	chmod_err
   605                                  ;		inc	chmodflg
   606                                  ;
   607                                  ;chmod_err:				
   608                                  ;		clr	fnum
   609                                  ;
   610                                  ;err_cf:					
   611                                  ;		mov	fnum, R0
   612                                  ;		beq	err_cf_next
   613                                  ;		trap	6
   614                                  ;		clr	fnum
   615                                  ;
   616                                  ;err_cf_next:				
   617                                  ;		dec	argc
   618                                  ;		bgt	next_arg
   619                                  ;		jmp	intr_loc
   620                                  ;; ---------------------------------------------------------------------------
   621                                  ;
   622                                  ;next_arg:				
   623                                  ;		mov	(SP)+, R0
   624                                  ;		mov	R0, fname_ptr
   625                                  ;		cmpb	(R0)+, #55 ; '-'
   626                                  ;		bne	open_txt_file
   627                                  ;		cmpb	@R0, #154 ; 'l'
   628                                  ;		bne	case_r
   629                                  ;		mov	#78., rows
   630                                  ;		br	err_cf
   631                                  ;; ---------------------------------------------------------------------------
   632                                  ;
   633                                  ;case_r:					
   634                                  ;		cmpb	@R0, #162 ; 'r'
   635                                  ;		bne	case_m
   636                                  ;		mov	#66., rows
   637                                  ;		br	err_cf
   638                                  ;; ---------------------------------------------------------------------------
   639                                  ;
   640                                  ;case_m:					
   641                                  ;		cmpb	@R0, #155 ; 'm'
   642                                  ;		bne	case_c
   643                                  ;		clr	cdateflg
   644                                  ;		br	err_cf
   645                                  ;; ---------------------------------------------------------------------------
   646                                  ;
   647                                  ;case_c:					
   648                                  ;		cmpb	@R0, #143 ; 'c'
   649                                  ;		bne	open_txt_file
   650                                  ;		inc	cdateflg
   651                                  ;		br	err_cf
   652                                  ;; ---------------------------------------------------------------------------
   653                                  ;
   654                                  ;open_txt_file:				
   655                                  ;		mov	fname_ptr, R0
   656                                  ;		jsr	R5, fopen
   657                                  ;; ---------------------------------------------------------------------------
   658                                  ;		.word fnum
   659                                  ;; ---------------------------------------------------------------------------
   660                                  ;		bcs	err_cf
   661                                  ;		tst	cdateflg
   662                                  ;		beq	get_fmod_time
   663                                  ;		trap	15
   664                                  ;		mov	@#word_177304, mtime_l
   665                                  ;		mov	@#word_177302, mtime_h
   666                                  ;		br	write_pages
   667                                  ;; ---------------------------------------------------------------------------
   668                                  ;
   669                                  ;get_fmod_time:				
   670                                  ;		mov	fnum, R0
   671                                  ;		trap	34
   672                                  ;; ---------------------------------------------------------------------------
   673                                  ;		.word fstatbuf
   674                                  ;; ---------------------------------------------------------------------------
   675                                  ;		mov	i_mtime_l, mtime_l
   676                                  ;		mov	i_mtime_h, mtime_h
   677                                  ;
   678                                  ;write_pages:				
   679                                  ;		clr	pagenumber
   680                                  ;		clr	eof
   681                                  ;		clr	cchar
   682                                  ;
   683                                  ;write_next_page:			
   684                                  ;		call	readf
   685                                  ;		br	err_cf
   686                                  ;; ---------------------------------------------------------------------------
   687                                  ;		mov	#1, R0
   688                                  ;		trap	4
   689                                  ;; ---------------------------------------------------------------------------
   690                                  ;		.word EmptyLines	; "\n\n\n\n\n"
   691                                  ;		.word 2
   692                                  ;; ---------------------------------------------------------------------------
   693                                  ;		mov	#1, R0
   694                                  ;		mov	mtime_l, @#word_177304
   695                                  ;		mov	mtime_h, @#word_177302
   696                                  ;		call	write_hdr_date
   697                                  ;		mov	#1, R0
   698                                  ;		trap	4
   699                                  ;; ---------------------------------------------------------------------------
   700                                  ;		.word PageHeader	; "   Page "
   701                                  ;		.word 2
   702                                  ;; ---------------------------------------------------------------------------
   703                                  ;		inc	pagenumber
   704                                  ;		mov	fname_ptr, R1
   705                                  ;		mov	R1, f_name_ptr
   706                                  ;		mov	#-1, R0
   707                                  ;
   708                                  ;strlen:					
   709                                  ;		inc	R0
   710                                  ;		tstb	(R1)+
   711                                  ;		bne	strlen
   712                                  ;		mov	R0, charcount
   713                                  ;		mov	#1, R0
   714                                  ;		trap	4
   715                                  ;; ---------------------------------------------------------------------------
   716                                  ;f_name_ptr:	.word 40000		
   717                                  ;charcount:	.word 40000		
   718                                  ;; ---------------------------------------------------------------------------
   719                                  ;		mov	#1, R0
   720                                  ;		trap	4
   721                                  ;; ---------------------------------------------------------------------------
   722                                  ;		.word PageHeader+2
   723                                  ;		.word 6
   724                                  ;; ---------------------------------------------------------------------------
   725                                  ;		mov	pagenumber, @#word_177304
   726                                  ;		call	write_pg_num
   727                                  ;		mov	#1, R0
   728                                  ;		trap	4
   729                                  ;; ---------------------------------------------------------------------------
   730                                  ;		.word EmptyLines	; "\n\n\n\n\n"
   731                                  ;		.word 4
   732                                  ;; ---------------------------------------------------------------------------
   733                                  ;		mov	rows, R1
   734                                  ;		sub	#11., R1
   735                                  ;
   736                                  ;write_next_char:			
   737                                  ;		call	get_char
   738                                  ;		call	write_char
   739                                  ;		cmp	R0, #10.
   740                                  ;		bne	write_next_char
   741                                  ;		dec	R1
   742                                  ;		bne	write_next_char
   743                                  ;		mov	#1, R0
   744                                  ;		trap	4
   745                                  ;; ---------------------------------------------------------------------------
   746                                  ;		.word EmptyLines	; "\n\n\n\n\n"
   747                                  ;		.word 5
   748                                  ;; ---------------------------------------------------------------------------
   749                                  ;		br	write_next_page
   750                                  ;; ---------------------------------------------------------------------------
   751                                  ;
   752                                  ;intr_loc:				
   753                                  ;					
   754                                  ;		tst	chmodflg
   755                                  ;		beq	_exit
   756                                  ;		trap	17
   757                                  ;; ---------------------------------------------------------------------------
   758                                  ;		.word ttyx		; "/dev/tty0"
   759                                  ;		.word 15
   760                                  ;; ---------------------------------------------------------------------------
   761                                  ;
   762                                  ;_exit:					
   763                                  ;		trap	1
   764                                  ;
   765                                  ;; =============== SUBROUTINE ================================================
   766                                  ;
   767                                  ;
   768                                  ;write_pg_num:				
   769                                  ;					
   770                                  ;		clr	@#word_177302
   771                                  ;		mov	#10., @#word_177300
   772                                  ;		mov	@#word_177302, -(SP)
   773                                  ;		tst	@#word_177304
   774                                  ;		beq	wrt_pg_num_1
   775                                  ;		call	write_pg_num
   776                                  ;
   777                                  ;wrt_pg_num_1:				
   778                                  ;		mov	(SP)+, R0
   779                                  ;		add	#60, R0	; '0'
   780                                  ;
   781                                  ;write_char:				
   782                                  ;		mov	R0, pn_chr
   783                                  ;		mov	#1, R0
   784                                  ;		trap	4
   785                                  ;; End of function write_pg_num
   786                                  ;
   787                                  ;; ---------------------------------------------------------------------------
   788                                  ;		.word pn_chr
   789                                  ;		.word 1
   790                                  ;; ---------------------------------------------------------------------------
   791                                  ;		mov	pn_chr, R0
   792                                  ;		return
   793                                  ;
   794                                  ;; =============== SUBROUTINE ================================================
   795                                  ;
   796                                  ;
   797                                  ;get_char:				
   798                                  ;					
   799                                  ;		mov	cchar, R0
   800                                  ;		beq	get_char_1
   801                                  ;		clr	cchar
   802                                  ;		return
   803                                  ;; ---------------------------------------------------------------------------
   804                                  ;
   805                                  ;get_char_1:				
   806                                  ;		tst	eof
   807                                  ;		beq	get_next_char
   808                                  ;		mov	#10., R0
   809                                  ;		return
   810                                  ;; ---------------------------------------------------------------------------
   811                                  ;
   812                                  ;get_next_char:				
   813                                  ;		jsr	R5, getc
   814                                  ;; End of function get_char
   815                                  ;
   816                                  ;; ---------------------------------------------------------------------------
   817                                  ;		.word fnum
   818                                  ;; ---------------------------------------------------------------------------
   819                                  ;		bcc	getc_ok
   820                                  ;		mov	PC, eof
   821                                  ;		br	get_char
   822                                  ;; ---------------------------------------------------------------------------
   823                                  ;
   824                                  ;getc_ok:				
   825                                  ;		return
   826                                  ;
   827                                  ;; =============== SUBROUTINE ================================================
   828                                  ;
   829                                  ;
   830                                  ;readf:				
   831                                  ;		call	get_char
   832                                  ;		mov	R0, cchar
   833                                  ;		tst	eof
   834                                  ;		bne	readf_err
   835                                  ;		add	#2, @SP
   836                                  ;
   837                                  ;readf_err:				
   838                                  ;		return
   839                                  ;; End of function readf
   840                                  ;
   841                                  ;; ---------------------------------------------------------------------------
   842                                  ;EmptyLines:	.ascii <12>		
   843                                  ;		.ascii <12>
   844                                  ;		.ascii <12>
   845                                  ;		.ascii <12><12>
   846                                  ;PageHeader:	.ascii \   Page \       
   847                                  ;ttyx:		.ascii \/dev/tty0\<0>   
   848                                  ;		.byte	 0 ;
   849                                  ;rows:		.word 102		
   850                                  ;mtime_l:	.word 0			
   851                                  ;mtime_h:	.word 0			
   852                                  ;argc:		.word 0			
   853                                  ;					
   854                                  ;eof:		.word 0			
   855                                  ;					
   856                                  ;cchar:		.word 0			
   857                                  ;pn_chr:	.word 0			
   858                                  ;					
   859                                  ;pagenumber:	.word 0			
   860                                  ;					
   861                                  ;fnum:		.word 0			
   862                                  ;statbuf:	.word 0			
   863                                  ;		.word 0
   864                                  ;		.word 0
   865                                  ;		.word 0
   866                                  ;fstatbuf:	.word 0			
   867                                  ;		.word 0
   868                                  ;		.word 0
   869                                  ;		.word 0
   870                                  ;		.word 0
   871                                  ;		.word 0
   872                                  ;		.word 0
   873                                  ;		.word 0
   874                                  ;		.word 0
   875                                  ;		.word 0
   876                                  ;		.word 0
   877                                  ;		.word 0
   878                                  ;		.word 0
   879                                  ;		.word 0
   880                                  ;i_mtime_h:	.word 0			
   881                                  ;i_mtime_l:	.word 0			
   882                                  ;i_rsvd:	.word 0
   883                                  ;		.array of .bytes cnt=132 val=0
   884                                  ;chmodflg:	.word 0			
   885                                  ;fname_ptr:	.word 0			
   886                                  ;					
   887                                  ;cdateflg:	.word 0			
   888                                  ;; ---------------------------------------------------------------------------
   889                                  ;
   890                                  ;write_hdr_date:				
   891                                  ;		mov	R1, -(SP)
   892                                  ;		sub	#20, SP
   893                                  ;		mov	R0, R1
   894                                  ;		mov	SP, R0
   895                                  ;		call	calc_date
   896                                  ;		mov	R0, datebufptr
   897                                  ;		mov	R1, R0
   898                                  ;		trap	4
   899                                  ;; ---------------------------------------------------------------------------
   900                                  ;datebufptr:	.word 40000		
   901                                  ;		.word 15.
   902                                  ;; ---------------------------------------------------------------------------
   903                                  ;		add	#16., SP
   904                                  ;		mov	(SP)+, R1
   905                                  ;		return
   906                                  ;; ---------------------------------------------------------------------------
   907                                  ;
   908                                  ;calc_date:				
   909                                  ;		mov	R2, -(SP)
   910                                  ;		mov	R3, -(SP)
   911                                  ;		cmp	@#word_177302, word_41700
   912                                  ;		bcs	loc_41372
   913                                  ;		bhi	loc_41340
   914                                  ;		cmp	@#word_177304, word_41702
   915                                  ;		bcs	loc_41372
   916                                  ;
   917                                  ;loc_41340:				
   918                                  ;		mov	@#word_177302, -(SP)
   919                                  ;		sub	word_41702, @#word_177304
   920                                  ;		sbc	@SP
   921                                  ;		sub	word_41700, @SP
   922                                  ;		mov	(SP)+, @#word_177302
   923                                  ;		mov	#29., february
   924                                  ;
   925                                  ;loc_41372:				
   926                                  ;		mov	#-4, @#word_177314
   927                                  ;		mov	#32274,	@#word_177300
   928                                  ;		mov	@#word_177304, R3
   929                                  ;		mov	@#word_177302, @#word_177304
   930                                  ;		mov	#2, @#word_177314
   931                                  ;		mov	#15., @#word_177300
   932                                  ;		add	#15., R0
   933                                  ;		jsr	R5, divide
   934                                  ;; ---------------------------------------------------------------------------
   935                                  ;		.word 10.
   936                                  ;; ---------------------------------------------------------------------------
   937                                  ;		jsr	R5, divide
   938                                  ;		.word 6
   939                                  ;; ---------------------------------------------------------------------------
   940                                  ;		movb	#72, -(R0) ; ':'
   941                                  ;		jsr	R5, divide
   942                                  ;; ---------------------------------------------------------------------------
   943                                  ;		.word 10.
   944                                  ;; ---------------------------------------------------------------------------
   945                                  ;		jsr	R5, divide
   946                                  ;; ---------------------------------------------------------------------------
   947                                  ;		.word 6
   948                                  ;; ---------------------------------------------------------------------------
   949                                  ;		movb	#72, -(R0) ; ':'
   950                                  ;		mov	R3, @#word_177304
   951                                  ;		mov	#30, @#word_177300
   952                                  ;		mov	@#word_177304, R3
   953                                  ;		mov	@#word_177302, @#word_177304
   954                                  ;		jsr	R5, divide
   955                                  ;; ---------------------------------------------------------------------------
   956                                  ;		.word 10.
   957                                  ;; ---------------------------------------------------------------------------
   958                                  ;		jsr	R5, divide
   959                                  ;; ---------------------------------------------------------------------------
   960                                  ;		.word 10.
   961                                  ;; ---------------------------------------------------------------------------
   962                                  ;		mov	#mdays,	R2
   963                                  ;
   964                                  ;loc_41544:
   965                                  ;		cmp	@R2, R3
   966                                  ;		bgt	loc_41554
   967                                  ;		sub	(R2)+, R3
   968                                  ;		br	loc_41544
   969                                  ;; ---------------------------------------------------------------------------
   970                                  ;
   971                                  ;loc_41554:
   972                                  ;		movb	#40, -(R0) ; ' '
   973                                  ;		sub	#mdays,	R2
   974                                  ;		asl	R2
   975                                  ;		add	#byte_41740, R2
   976                                  ;		inc	R3
   977                                  ;		mov	R3, @#word_177304
   978                                  ;		jsr	R5, divide
   979                                  ;; ---------------------------------------------------------------------------
   980                                  ;		.word 10.
   981                                  ;; ---------------------------------------------------------------------------
   982                                  ;		tst	@#word_177304
   983                                  ;		beq	loc_41630
   984                                  ;		add	#60, @#word_177304 ; '0'
   985                                  ;		movb	@#word_177304, -(R0)
   986                                  ;		br	loc_41634
   987                                  ;; ---------------------------------------------------------------------------
   988                                  ;
   989                                  ;loc_41630:				
   990                                  ;		movb	#40, -(R0) ; ' '
   991                                  ;
   992                                  ;loc_41634:				
   993                                  ;		movb	#40, -(R0) ; ' '
   994                                  ;		movb	-(R2), -(R0)
   995                                  ;		movb	-(R2), -(R0)
   996                                  ;		movb	-(R2), -(R0)
   997                                  ;		mov	(SP)+, R3
   998                                  ;		mov	(SP)+, R2
   999                                  ;		return
  1000                                  ;
  1001                                  ;; =============== SUBROUTINE ================================================
  1002                                  ;
  1003                                  ;
  1004                                  ;divide:					
  1005                                  ;		clr	@#word_177302
  1006                                  ;		mov	(R5)+, @#word_177300
  1007                                  ;		add	#60, @#word_177302 ; '0'
  1008                                  ;		movb	@#word_177302, -(R0)
  1009                                  ;		rts	R5
  1010                                  ;; End of function divide
  1011                                  ;
  1012                                  ;; ---------------------------------------------------------------------------
  1013                                  ;word_41700:	.word 70310		
  1014                                  ;word_41702:	.word 11000		
  1015                                  ;mdays:		.word 31.
  1016                                  ;february:	.word 28.		
  1017                                  ;		.word 31.
  1018                                  ;		.word 30.
  1019                                  ;		.word 31.
  1020                                  ;		.word 30.
  1021                                  ;		.word 31.
  1022                                  ;		.word 31.
  1023                                  ;		.word 30.
  1024                                  ;		.word 31.
  1025                                  ;		.word 30.
  1026                                  ;		.word 999.
  1027                                  ;		.byte 0
  1028                                  ;Jan:		.ascii \Jan;byte_41740:	.byte 0
  1030                                  ;Feb:		.ascii \Feb\<0>
  1031                                  ;Mar:		.ascii \Mar\<0>
  1032                                  ;Apr:		.ascii \Apr\<0>
  1033                                  ;May:		.ascii \May\<0>
  1034                                  ;Jun:		.ascii \Jun\<0>
  1035                                  ;Jul:		.ascii \Jul\<0>
  1036                                  ;Aug:		.ascii \Aug\<0>
  1037                                  ;Sep:		.ascii \Sep\<0>
  1038                                  ;Oct:		.ascii \Oct\<0>
  1039                                  ;Nov:		.ascii \Nov\<0>
  1040                                  ;Dec:		.ascii \Dec;; ---------------------------------------------------------------------------
  1042                                  ;
  1043                                  ;fopen:					
  1044                                  ;		mov	R1, -(SP)
  1045                                  ;		mov	(R5)+, R1
  1046                                  ;		mov	R0, fnameptr
  1047                                  ;		trap	5
  1048                                  ;; ---------------------------------------------------------------------------
  1049                                  ;fnameptr:	.word 40000		
  1050                                  ;		.word 0
  1051                                  ;; ---------------------------------------------------------------------------
  1052                                  ;		bcs	fopen_err
  1053                                  ;		mov	R0, (R1)+
  1054                                  ;		clr	(R1)+
  1055                                  ;		mov	(SP)+, R1
  1056                                  ;		rts	R5
  1057                                  ;; ---------------------------------------------------------------------------
  1058                                  ;
  1059                                  ;fopen_err:				
  1060                                  ;		mov	#-1, @R1
  1061                                  ;		mov	(SP)+, R1
  1062                                  ;		sec
  1063                                  ;		rts	R5
  1064                                  ;; ---------------------------------------------------------------------------
  1065                                  ;		mov	@R5, fbuf
  1066                                  ;		mov	(R5)+, word_42072
  1067                                  ;		jsr	R5, getc
  1068                                  ;; ---------------------------------------------------------------------------
  1069                                  ;word_42072:	.word 40000		
  1070                                  ;; ---------------------------------------------------------------------------
  1071                                  ;		bcc	getw
  1072                                  ;		rts	R5
  1073                                  ;; ---------------------------------------------------------------------------
  1074                                  ;
  1075                                  ;getw:					
  1076                                  ;		mov	R0, -(SP)
  1077                                  ;		jsr	R5, getc
  1078                                  ;; ---------------------------------------------------------------------------
  1079                                  ;fbuf:		.word 40000		
  1080                                  ;; ---------------------------------------------------------------------------
  1081                                  ;		swab	R0
  1082                                  ;		bis	(SP)+, R0
  1083                                  ;		rts	R5
  1084                                  ;; ---------------------------------------------------------------------------
  1085                                  ;
  1086                                  ;getc:					
  1087                                  ;					
  1088                                  ;		mov	R1, -(SP)
  1089                                  ;		mov	(R5)+, R1
  1090                                  ;		dec	2(R1)
  1091                                  ;		bge	getcbuf
  1092                                  ;		mov	R1, R0
  1093                                  ;		add	#6, R0
  1094                                  ;		mov	R0, bufoff
  1095                                  ;		mov	R0, 4(R1)
  1096                                  ;		mov	@R1, R0
  1097                                  ;		trap	3
  1098                                  ;; ---------------------------------------------------------------------------
  1099                                  ;bufoff:	.word 40000		
  1100                                  ;		.word 128.
  1101                                  ;; ---------------------------------------------------------------------------
  1102                                  ;		bcs	getw_err
  1103                                  ;		tst	R0
  1104                                  ;		bne	getw_ok
  1105                                  ;
  1106                                  ;getw_err:				
  1107                                  ;		mov	(SP)+, R1
  1108                                  ;		sec
  1109                                  ;		rts	R5
  1110                                  ;; ---------------------------------------------------------------------------
  1111                                  ;
  1112                                  ;getw_ok:				
  1113                                  ;		dec	R0
  1114                                  ;		mov	R0, 2(R1)
  1115                                  ;
  1116                                  ;getcbuf:				
  1117                                  ;		clr	R0
  1118                                  ;		bisb	@4(R1),	R0
  1119                                  ;		inc	4(R1)
  1120                                  ;		mov	(SP)+, R1
  1121                                  ;		rts	R5
  1122                                  ;; ---------------------------------------------------------------------------
  1123                                  ;
  1124                                  ;; end of 'RAM'
  1125                                  ;
  1126                                  ;		.END
