; **************************************************************************** ; TRDOS386.ASM (TRDOS 386 Kernel - v2.0.10) - UNINITIALIZED DATA : trdoskx.s ; ---------------------------------------------------------------------------- ; Last Update: 10/02/2026 (Previous: 01/09/2024 - Kernel v2.0.9) ; ---------------------------------------------------------------------------- ; Beginning: 04/01/2016 ; ---------------------------------------------------------------------------- ; Assembler: NASM version 2.11 (trdos386.s) ; ---------------------------------------------------------------------------- ; Derived from TRDOS Operating System v1.0 (8086) source code by Erdogan Tan ; TRDOS2.ASM (09/11/2011) ; **************************************************************************** ; DRV_INIT.ASM [26/09/2009] Last Update: 07/08/2011 ; MAINPROG.ASM [17/01/2004] Last Update: 09/11/2011 ; DIR.ASM [17/01/2004] Last Update: 09/10/2011 ; CMD_INTR.ASM [29/01/2005] Last update: 09/11/2011 ; DRV_FAT.ASM [07/07/2009] Last update: 21/08/2011 alignb 4 ; 10/02/2026 - TRDOS 386 v2.0.10 cr3prev: resd 1 ; for saving and restoring previous (user's) cr3 ; (page directory address) -video.s- ; MAINPROG.ASM MainProgCfg_FileSize: resd 1 ; 14/04/2016 MainProgCfg_LineOffset: resd 1 ; 14/04/2016 Current_VolSerial: resd 1 Current_Dir_FCluster: resd 1 Current_Dir_Level: resb 1 Current_FATType: resb 1 Current_Drv: resb 1 Current_Dir_Drv: resb 1 ; '?' resb 1 ; ':' Current_Dir_Root: resb 1 ; '/' Current_Directory: resb 90 End_Of_Current_Dir_Str: resb 1 Current_Dir_StrLen: resb 1 CursorColumn: resb 1 CmdArgStart: resb 1 ; 03/02/2016 Remark: resb 78 CommandBuffer: resb 80 ;TextBuffer: ;resb 256 ; 04/07/2025 TextBuffer: resb 128 RunPathBuffer: resb 128 MasterBootBuff: MasterBootCode: resb 1BEh PartitionTable: resb 64 MBIDCode: resw 1 PTable_Buffer: PTable_hd0: resb 64 PTable_hd1: resb 64 PTable_hd2: resb 64 PTable_hd3: resb 64 ; 15/07/2020 ;PTable_ep0: resb 64 ;PTable_ep1: resb 64 ;PTable_ep2: resb 64 ;PTable_ep3: resb 64 ; 22/05/2024 HD_LBA_yes: resd 1 ; 13/08/2020 scount: resb 1 ; 16/05/2016 (diskio.s, 'int33h:') ; 22/05/2024 ;resb 1 ;resb 1 ;resb 1 ;HD_LBA_yes: resb 1 PP_Counter: resb 1 EP_Counter: resb 1 ; 13/08/2020 LD_Counter: resb 1 ; 30/08/2020 MBR_EP_StartSector: resd 1 ; Extd partition start sector as in MBR EP_StartSector: resd 1 ; next extd partition start sector ; 15/07/2020 ;resd 1 ;resd 1 ; 20/07/2020 DOSBootSectorBuff: resb 512 ; 15/07/2020 ;DOSBootSectorBuff: resb 446 ; 1BEh ;MiniPartitionTable: resb 64 ; 40h ;MiniPartitionMagic: resw 1 ; 02h FAT_BuffDescriptor: FAT_CurrentCluster: resd 1 FAT_BuffValidData: resb 1 FAT_BuffDrvName: resb 1 FAT_BuffOffset: resw 1 FAT_BuffSector: resd 1 FAT_ClusterCounter: resd 1 LastCluster: resd 1 ; 16/05/2016 ;; 18/03/2016 (TRDOS v2.0) ;ClusterBuffer_Valid: resb 1 ; 29/07/2022 ;resb 1 ; 02/12/2023 P_TIMER: resb 1 ; diskette change check (2 seconds) Dir_BuffDescriptor: DirBuff_DRV: resb 1 DirBuff_FATType: resb 1 DirBuff_ValidData: resb 1 DirBuff_CurrentEntry: resw 1 DirBuff_LastEntry: resw 1 DirBuff_Cluster: resd 1 DirBuffer_Size: resw 1 ;DirBuff_EntryCounter: resw 1 ; 01/02/2016 ; these are on (real mode) segment 8000h and later ; FAT_Buffer: resb 1536 ; 3 sectors ; Dir_Buffer: resb 512*32 ; Logical_DOSDisks: resb 6656 ; 26 * 256 bytes ; 18/01/2016 FreeClusterCount: resd 1 VolSize_Unit1: resd 1 VolSize_Unit2: resd 1 Vol_Tot_Sec_Str_Start: resd 1 Vol_Tot_Sec_Str: resb 10 Vol_Tot_Sec_Str_End: resb 1 resb 1 Vol_Free_Sectors_Str_Start: resd 1 Vol_Free_Sectors_Str: resb 10 Vol_Free_Sectors_Str_End: resb 1 ; 10/02/2016 RUN_CDRV: resb 1 ; CMD_INTR.ASM ; 09/11/2011 ; 24/01/2016 PATH_Array: resb 128 ; DIR.ASM ; 09/10/2011 ; 06/02/2016 CCD_DriveDT: resd 1 ; DIR.ASM ; (word) CCD_Level: resb 1 ; DIR.ASM Last_Dir_Level: resb 1 ; DIR.ASM ; CDLF_AttributesMask: resw 1 ; DIR.ASM CDLF_FNAddress: resd 1 ; DIR.ASM (word) CDLF_DEType: resw 1 ; DIR.ASM ; CD_COMMAND: resb 1 ; DIR.ASM alignb 4 ; 29/01/2016 Program_Exit: resb 1 ; CMD_INTR.ASM ; 09/11/2011 ;alignb 4 ; 23/02/2016 disk_rw_op: resb 1 ; 0 = disk read, 1 = disk write ;disk_rw_spt: resb 1 ; sectors per track (<= 63) /// (<256) ; 31/01/2016 retry_count: resb 1 ; DISK_IO.ASM ; 20/07/2011 (CHS_RetryCount) disk_rw_err: resb 1 ; DISK_IO.ASM ; (Disk_IO_err_code) sector_count: resd 1 ; DISK_IO.ASM ; (Disk_RW_SectorCount) ; 06/02/2016 (long name) FDE_AttrMask: resw 1 ; DIR.ASM AmbiguousFileName: resw 1 ; DIR.ASM PreviousAttr: resb 1 ; DIR.ASM ; LongNameFound: resb 1 ; DIR.ASM LFN_EntryLength: resb 1 ; DIR.ASM LFN_CheckSum: resb 1 ; DIR.ASM LongFileName: resb 132 ; DIR.ASM ;PATH_Array_Ptr: resw 1 ; DIR.ASM PATH_CDLevel: resb 1 ; DIR.ASM PATH_Level: resb 1 ; DIR.ASM ; 07/02/2016 Dir_File_Name: resb 13 ; DIR.ASM ; 09/10/2011 ; 10/02/2016 Dir_Entry_Name: resb 13 ; DIR.ASM alignb 2 AttributesMask: resw 1 ; CMD_INTR.ASM ; 09/11/2011 ; 10/02/2016 (128 bytes -> 126 bytes) ; 08/02/2016 ;FFF Structure (128 bytes) ; DIR.ASM ; 09/10/2011 FindFile_Drv: resb 1 FindFile_Directory: resb 65 FindFile_Name: resb 13 FindFile_LongNameEntryLength: FindFile_LongNameYes: resb 1 ; Sign for longname procedures ;Above 80 bytes form ;TR-DOS Source/Destination File FullName Format/Structure FindFile_AttributesMask: resw 1 FindFile_DirEntry: resb 32 FindFile_DirFirstCluster: resd 1 FindFile_DirCluster: resd 1 FindFile_DirEntryNumber: resw 1 FindFile_MatchCounter: resw 1 FindFile_Reserved: resw 1 ; 06/03/2016 First_Path_Pos: resd 1 ; DIR.ASM ; 09/10/2011 Last_Slash_Pos: resd 1 ; DIR.ASM ; 10/02/2016 File_Count: resw 1 ; DIR.ASM ; 09/10/2011 Dir_Count: resw 1 Total_FSize: resd 1 TFS_Dec_Begin: resd 1 resb 10 TFS_Dec_End: resb 1 PrintDir_RowCounter: resb 1 alignb 4 ; 15/02/2015 ('show' command variables) Show_FDT: resd 1 Show_LDDDT: resd 1 Show_Cluster: resd 1 Show_FileSize: resd 1 Show_FilePointer: resd 1 Show_ClusterPointer: resw 1 Show_ClusterSize: resw 1 Show_RowCount: resb 1 alignb 4 ; 21/02/2016 DelFile_FNPointer: resd 1 ; ; CMD_INTR.ASM (word) ; 09/11/2011 ; 27/02/2016 ; DIR.ASM (09/10/2011) DelFile_FCluster: resd 1 DelFile_EntryCounter: resw 1 DelFile_LNEL: resb 1 ; 17/07/2025 ;resb 1 ; 22/02/2016 UPDLMDT_CDirLevel: resb 1 UPDLMDT_CDirFCluster: resd 1 ; DIR.ASM mkdir_DirName_Offset: resd 1 mkdir_FFCluster: resd 1 mkdir_LastDirCluster: resd 1 mkdir_FreeSectors: resd 1 mkdir_attrib: resw 1 mkdir_SecPerClust: resb 1 mkdir_add_new_cluster: resb 1 mkdir_Name: resb 13 resw 1 ; 01/03/2016 ; 27/02/2016 RmDir_MultiClusters: resb 1 RmDir_DirEntryOffset: resd 1 ; 01/03/2016 (word -> dword) RmDir_ParentDirCluster: resd 1 RmDir_DirLastCluster: resd 1 RmDir_PreviousCluster: resd 1 ; 17/07/2025 - TRDOS 386 v2.0.10 rmdir_dir_fcluster: resd 1 rmdir_drv: resb 1 alignb 4 ; DRV_FAT.ASM ; 21/08/2011 gffc_next_free_cluster: resd 1 gffc_first_free_cluster: resd 1 gffc_last_free_cluster: resd 1 ;29/04/2016 Cluster_Index: ; resd 1 ; 22/02/2016 ClusterValue: resd 1 ; 04/03/2016 Attributes: resb 1 ;;CFS_error: resb 1 ;; 01/03/2016 resb 1 CFS_OPType: resb 1 CFS_Drv: resb 1 CFS_CC: resd 1 CFS_FAT32FSINFOSEC: resd 1 CFS_FAT32FC: resd 1 ; 27/02/2016 ;alignb 4 glc_prevcluster: resd 1 ; DRV_FAT.ASM (21/08/2011) ; 22/10/2016 glc_index: resd 1 ; Last Cluster Index (22/10/2016) ; DIR.ASM DLN_EntryNumber: resw 1 DLN_40h: resb 1 ; 28/02/2016 TCC_FATErr: resb 1 ; DRV_FAT.ASM alignb 4 ; DIR.ASM (09/10/2011) LCDE_EntryIndex: resw 1 ; LCDE_EntryOffset LCDE_ClusterSN: resw 1 LCDE_Cluster: resd 1 LCDE_ByteOffset: resd 1 ;alignb4 ; 06/03/2016 (word -> dword) ; CMD_INTR.ASM (01/08/2010) SourceFilePath: resd 1 DestinationFilePath: resd 1 ;alignb 4 ; 06/03/2016 ; FILE.ASM (09/10/2011) ;Source File Structure (same with 'Find File' Structure) SourceFile_Drv: resb 1 SourceFile_Directory: resb 65 SourceFile_Name: resb 13 SourceFile_LongNameEntryLength: SourceFile_LongNameYes: resb 1 ; Sign for longname procedures ;Above 80 bytes ;is TR-DOS Source File FullName Format/Structure SourceFile_AttributesMask: resw 1 SourceFile_DirEntry: resb 32 SourceFile_DirFirstCluster: resd 1 SourceFile_DirCluster: resd 1 SourceFile_DirEntryNumber: resw 1 SourceFile_MatchCounter: resw 1 ; 16/03/2016 SourceFile_SecPerClust: resb 1 SourceFile_Reserved: resb 1 ; Above is 128 bytes ;Destination File Structure (same with 'Find File' Structure) DestinationFile_Drv: resb 1 DestinationFile_Directory: resb 65 DestinationFile_Name: resb 13 DestinationFile_LongNameEntryLength: DestinationFile_LongNameYes: resb 1 ; Sign for longname procedures ;Above 80 bytes ;is TR-DOS Destination File FullName Format/Structure DestinationFile_AttributesMask: resw 1 DestinationFile_DirEntry: resb 32 DestinationFile_DirFirstCluster: resd 1 DestinationFile_DirCluster: resd 1 DestinationFile_DirEntryNumber: resw 1 DestinationFile_MatchCounter: resw 1 ; 16/03/2016 DestinationFile_SecPerClust: resb 1 DestinationFile_Reserved: resb 1 ; Above is 128 bytes ; 24/04/2016 resw 1 ; 10/03/2016 ; FILE.ASM move_cmd_phase: resb 1 msftdf_sf_df_drv: resb 1 msftdf_drv_offset: resd 1 ; 11/03/2016 ; DRV_FAT.ASM (21/08/2011) FAT_anc_LCluster: resd 1 FAT_anc_FFCluster: resd 1 ;alignb 4 ; 14/03/2016 ; TRDOS 386 = TRDOS v2.0 feature only ! ; 'allocate_memory_block' in 'memory.s' mem_ipg_count: resd 1 ; page count (for contiguous allocation) mem_pg_count: resd 1 ; page count (for count down) mem_aperture: resd 1 ; contiguous free pages (current) mem_max_aperture: resd 1 ; maximum value of contiguous free pages mem_pg_pos: resd 1 ; mem. position (page #) of current aperture mem_max_pg_pos: resd 1 ; mem. position (page #) of max. aperture ; 15/03/2016 ; FILE.ASM ('copy_source_file_to_destination_file') copy_cmd_phase: resb 1 csftdf_rw_err: resb 1 DestinationFileFound: resb 1 csftdf_cdrv: resb 1 csftdf_filesize: resd 1 ; TRDOS386 (TRDOS v2.0) MainProgCfg_mem_addr: ; 19/12/2025 csftdf_sf_mem_addr: resd 1 MainProgCfg_mem_bsize: ; 19/12/2025 csftdf_sf_mem_bsize: resd 1 ; MainProgCfg_cluster: ; 19/12/2025 csftdf_sf_cluster: resd 1 ; 16/03/2016 csftdf_df_cluster: resd 1 MainProgCfg_r_size: ; 19/12/2025 ; 16/03/2016 csftdf_r_size: resd 1 csftdf_w_size: resd 1 MainProgCfg_rbytes: ; 19/12/2025 csftdf_sf_rbytes: resd 1 csftdf_df_wbytes: resd 1 csftdf_percentage: resb 1 ; 17/03/2016 csftdf_videopage: resb 1 csftdf_cursorpos: resw 1 csftdf_sf_drv_dt: resd 1 csftdf_df_drv_dt: resd 1 ; 01/09/2024 ; 29/08/2024 ;csftdf_df_dclust: resd 1 ;csftdf_df_dindex: resd 1 ; 21/03/2016 ; 20/03/2016 ; FILE.ASM createfile_Name_Offset: resd 1 createfile_FreeSectors: resd 1 createfile_size: resd 1 createfile_FFCluster: resd 1 ; 11/03/2016 createfile_LastDirCluster: resd 1 createfile_Cluster: resd 1 createfile_PCluster: resd 1 createfile_attrib: resb 1 createfile_SecPerClust: resb 1 createfile_DirIndex: resw 1 createfile_CCount: resd 1 ; 19/12/2025 ;createfile_BytesPerSec: resw 1 ; 23/03/2016 createfile_wfc: resb 1 createfile_UpdatePDir: resb 1 ; 31/03/2016 ;alignb 4 ; 11/04/2016 env_var_length: resw 1 alignb 4 ; 25/04/2016 readi.valid: resb 1 ; valid data (>0 = valid for readi) readi.drv: resb 1 ; drive number (0, 1,2,3,4..) readi.spc: resb 1 ; sectors per cluster for 'readi' drive readi.s_index: resb 1 ; sector index in current cluster (buffer) readi.sector: resd 1 ; current disk sector readi.bpc: resw 1 ; bytes per cluster - 1 readi.offset: resw 1 ; byte offset in cluster buffer readi.cluster: resd 1 ; current cluster number readi.c_index: resd 1 ; cluster index of the current cluster (0,1,2,3..) readi.fclust: resd 1 ; first cluster of the current cluster ; 19/12/2025 ;readi.fs_index: resd 1 ; sector index in disk/file section (for Singlix FS) ;readi.buffer: resd 1 ; readi sector buffer address ;alignb 4 writei.valid: resb 1 ; valid data (>0 = valid for writei) writei.drv: resb 1 ; drive number (0, 1,2,3,4..) writei.spc: resb 1 ; sectors per cluster for 'writei' drive writei.s_index: resb 1 ; sector index in current cluster (buffer) writei.sector: resd 1 ; current disk sector writei.bpc: resw 1 ; bytes per cluster - 1 writei.offset: resw 1 ; byte offset in cluster buffer writei.cluster: resd 1 ; current cluster number writei.c_index: resd 1 ; cluster index of the current cluster (0,1,2,3..) writei.fclust: resd 1 ; first cluster of the current cluster writei.fs_index: resd 1 ; sector index in disk/file section (for Singlix FS) ;writei.buffer: resd 1 ; writei sector buffer address writei.lclust: resd 1 ; writei last cluster (mget_w) ; 23/10/2016 writei.l_index: resd 1 ; writei last cluster index (mget_w) ; 23/10/2016 writei.ofn: resb 1 ; open file number (to be written) ; 23/10/2016 alignb 4 ; 29/04/2016 Run_CDirFC: resd 1 ;Run_Auto_Path: resb 1 ; 03/07/2025 Run_Path_Length: resd 1 Run_Auto_Path: resd 1 Run_Manual_Path: resb 1 ; 0 -> auto path sequence needed EXE_ID: resb 1 EXE_dot: resb 1 resb 1 ; 03/07/2025 ; 06/05/2016 mainprog_return_addr: resd 1 last_error: resd 1 ; this will be used to return error code to MainProg ; 'lasterror' keyword will be used later to get the ; last error code/number/status. ; 12/05/2016 video_eax: resd 1 ; eax return value of video function ; 01/06/2016 user_buffer: resd 1 ; 'diskio.s' (INT 33h, Function 08h, floppy disk type) ; 21/05/2016 - TRDOS 386 ('swap/switch', 'rswap', [u.pri]) priority: resb 1 ; running priority level of process (0,1,2) ; (run queue which is process comes from) ; 22/05/2016 - TRDOS 386 ('set_run_sequence', 'rtc_int', 'u_timer') p_change: resb 1 ; process change status (for timer events) ; 23/05/2016 - TRDOS 386 ('clock') multi_tasking: resb 1 ; Multi Tasking status (0 = disabled, >0 = enabled) ; (EBX will return with user buffer addr or disk type) ; 07/06/2016 timer_events: resb 1 ; number of (active) timer events, <= 16 ; 24/06/2016 w_str_cmd: resb 1 ; WRITE_STRING command (0,1,2,3) ; video.s p_crt_mode: resb 1 ; previous video mode (=3 or 0), backup mark/sign ; 26/06/2016 p_crt_page: resb 1 ; previous active page (for 'set_mode') ; 04/07/2016 noclearmem: resb 1 ; if set, 'SET MODE' (INT 31h) function (AH = 4) ; will not clear the video memory ; (usable for graphics modes only) alignb 2 CRT_LEN: resw 1 ; length of regen buffer in bytes cursor_pposn: resw 8 ; cursor positions backup ; 10/07/2016 ('VGA_FONT_SETUP', INT 43H address for x86 real mode bios) VGA_INT43H: resd 1 ; 0 = default (not configured by user) ; 0FFFFFFFFh = user defined fonts ; address: ; vgafont8 ; vgafont16 ; vgafont14 ; 25/07/2016 VGA_MTYPE: resb 1 ; 0=CTEXT,1=MTEXT,2=CGA,3=PLANAR1,4=PLANAR4,5=LINEAR ; 23/10/2016 setfmod: resb 1 ; update last modification date&time sign (if >0) ; (it is Open File Number + 1, if > 0) ; 27/08/2024 setfclust: resb 1 ; first cluster of file ; (is used by update lmdt proc) alignb 4 ; 16/10/2016 FFF_UBuffer: resd 1 ; User's buffer address for FFF & FNF system calls ; 15/10/2016 FFF_Valid: resb 1 ; Find First File Structure validation byte ; 0 = invalid (Find Next File can't use FFF struct) ; >0 = valid, return type for FFF and Find Next File ; 24 = basic parameters, 24 bytes ; 128 = entire FFF structure/table, 128 bytes ; 16/10/2016 (FFF_Attrib: resw 1) FFF_Attrib: resb 1 ; Find First File attributes for Find Next File (LB) FFF_RType: resb 1 ; FFF return type (0 = Basic, >0 = complete) (HB) ; 16/10/2016 - 05/10/2016 (Set Working Path) SWP_inv_fname: resb 1 ; Set Working Path - Invalid File Name SWP_Mode: resw 1 ; Set Working Path - Mode SWP_DRV: resb 1 ; Set Working Path - Drive SWP_DRV_chg: resb 1 ; Set Working Path - Drive Change ; 27/02/2017 fpready: resb 1 ; '80387 fpu is ready' flag ; 17/04/2021 ; (DEVICE parameters is disabled as temporary) ; 08/10/2016 ;device_name: resb 9 ; capitalized (and zero padded) device name ; (example: "TTY0",0,0,0,0,0") alignb 4 ; 08/10/2016 ; 07/10/2016 ; Table of kernel devices (which do not use installable device drivers) ; has been coded into KERNEL (trdosk9.s) ; 07/10/2016 ; 8 installable device drivers available to install (NUMIDEV) ;IDEV_PGDIR: resd NUMIDEV ; Page directories of installable device drivers ; ; Note: Virtual start address is always 400000h ; (end of the 1st 4MB). [org 400000h] ; Segments: KCODE, KDATA ; Method: call 400000h (after changing page dir) ; Query code located at the start (400000h). ; Query code returns with ; eax = device type and driver version ; AL = Device Type minor ; AH = Device Type major ; Byte 16-23 : Version minor ; Byte 24-31 : Version major - 1 ; (0:0 -> 1.0) ; ebx = initialization code address ; ecx = configuration table address ; edx = description table address ; esi = device (default) name address (ASCIIZ) ; (name has "/DEV/" prefix) ; edi = dispatch table address ; (for calling kernel-device functions) ; ebp = address table address ; Initialization code returns with ; eax = open code address ; ecx = close code address ; ebx = read code address ; edx = write code address ; esi = IOCTL code address ; edi = dispatch table address ; ebp = address table address ; Address Table: ; Offset 0 : open code address ; Offset 4 : read code address ; Offset 8 : write code address ; Offset 12 : close code address ; Offset 16 : IOCTL code address ; Offset 20 : initialization code address ; Offset 24 : description table address ; Offset 28 : configuration table address ; Offset 32 : device name address ; Offset 36 : dispatch table address ; (for calling kernel-device functions) ;IDEV_NAME: resb 8*NUMIDEV ; 8 byte names of installable device drivers ;IDEV_TYPE: resb NUMIDEV ; Driver type of installable device drivers ;IDEV_FLAGS: resb NUMIDEV ; Device access parameters for installable ; device drivers (These values are set while ; the device driver is being loaded.) ;IDEV_OADDR: resd NUMIDEV ; open function addr for installable dev driver ;IDEV_CADDR: resd NUMIDEV ; close function addr for installable dev driver ;IDEV_RADDR: resd NUMIDEV ; read function addr for installable dev driver ;IDEV_WADDR: resd NUMIDEV ; write function addr for installable dev driver ; 08/10/2016 ; 07/10/2016 ; Device Open and Access parameters ;DEV_ACCESS: resb NUMOFDEVICES ; bit 0 = accessable by normal users ; bit 1 = read access permission ; bit 2 = write access permission ; bit 3 = IOCTL permission to users ; bit 4 = block device if it is set ; bit 5 = 16 bit or 1024 byte data ; bit 6 = 32 bit or 2048 byte data ; bit 7 = installable device driver ;DEV_R_OWNER: resb NUMOFDEVICES ; Reading owner no (u.uid) of devices ;DEV_R_OPENCOUNT: resb NUMOFDEVICES ; Reading open count ;DEV_W_OWNER: resb NUMOFDEVICES ; Writing owner no (u.uid) of devices ;DEV_W_OPENCOUNT: resb NUMOFDEVICES ; Writing open count ;DEV_DRIVER: resb NUMOFDEVICES ; device driver number (1 to 7Fh) ; *if bit 7 is set (80 to FFh) ; *if it is installable device driver ; *index (0 to 7Fh) ; otherwise it is kernel device index ;DEV_OPENMODE: resb NUMOFDEVICES ; 1 = read mode ; 2 = write mode ; 3 = read & write ; 0 = not open (free) ;DEV_NAME_PTR: resd NUMOFDEVICES ; pointers to name addresses of drivers ; Address base: KDEV_NAME+ ; or IDEV_NAME+ ;DEV_R_POINTER: resd NUMOFDEVICES ; reading pointer, writing pointer ;DEV_W_POINTER: resd NUMOFDEVICES ; sector number if block device ; character offset if char device alignb 4 ; 06/10/2016 ; Open File Parameters OF_FCLUSTER: resd OPENFILES ; First clusters of open files OF_DRIVE: resb OPENFILES ; Logical DOS drive numbers of open files OF_MODE: resb OPENFILES ; Open mode (1 = read, 2 = write, 3 = r&w) OF_STATUS: resb OPENFILES ; (bit 0 = read, bit 1 = write) OF_OPENCOUNT: resb OPENFILES ; Open counts of open files OF_POINTER: resd OPENFILES ; File seek/read/write pointer OF_SIZE: resd OPENFILES ; File sizes of open files (in bytes) OF_DIRFCLUSTER: resd OPENFILES ; Directory First Clusters of open files OF_DIRCLUSTER: resd OPENFILES ; Directory (Entry) Clusters of open files OF_VOLUMEID: resd OPENFILES ; Vol ID for removable drives of open files OF_CCLUSTER: resd OPENFILES ; Current clusters of open files OF_CCINDEX: resd OPENFILES ; Cluster index numbers of current clusters ; 24/10/2016 OF_DIRENTRY: resw OPENFILES ; Directory entry index no. in dir cluster ; Sector index = entry index / 16 ;alignb 2 DTA: ;resd 24 ; Find First File data transfer area resb 24 ; 29/07/2022 ; 19/12/2016 tcallback: resb 1 ; Timer callback method flag for 'systimer' trtc: resb 1 ; Timer interrupt type flag for 'systimer' ; 20/02/2017 no_page_swap: resb 1 ; Swap lock for Signal Response Byte pages ;;15/01/2017 ; 02/01/2017 ;;intflg: resb 1 ; software interrupt in progress signal ; (for timer interrupt) alignb 4 ; 13/04/2017 ;DEV_INTR: resb NUMOFDEVICES ; Device Interrupt (IRQ) number + 1 ; (0= not available, 1= IRQ 0, 16= IRQ 15) DEV_INT_HNDLR: resd 16 ; Device Interrupt Handler addr, if > 0 ;alignb 4 ; 26/02/2017 ; IRQ Callback parameters ('syscalbac') ;Index: ; 0 to 8 ; 0 = IRQ3, 1 = IRQ4, 2 = IRQ5, 3 = IRQ7 ; 4 = IRQ9, 5 = IRQ10, 6 = IRQ11, 7 = IRQ12, 8 = IRQ13 IRQ.owner: resb 9 ; owner, 0 = free, >0 = [u.uno] IRQ.dev: resb 9 ; 0 = default/kernel, >0 = device number IRQ.method: resb 9 ; 0 = Signal Response Byte, 1 = Callback IRQ.srb: resb 9 ; Signal Response/Return Byte value IRQ.addr: resd 9 ; Rignal Response Byte address (physical) ; or Callback service address (virtual) ; 28/02/2017 IRQ_cr3: resd 1 ; for saving cr3 register in IRQ handler IRQnum: resb 1 ; IRQ number for IRQ handler (trdosk8.s) ; 10/04/2017 ; 03/04/2017 ; UNINITIALIZED AUDIO DATA alignb 4 audio_pci: resb 1 audio_device: resb 1 ;audio_mode: resb 1 audio_intr: resb 1 audio_busy: resb 1 ; Busy flag for audio irq ; 21/04/2017 ;audio_reserved: resb 1 ; 20/11/2023 NAMBAR: resw 1 ; Native Audio Mixer Base Address NABMBAR: ; 02/10/2023 (NABMBAR = audio_io_base) audio_io_base: resw 1 ; Base I/O address of audio device audio_dev_id: resd 1 ; BUS/DEV/FN ; 00000000BBBBBBBBDDDDDFFF00000000 audio_vendor: resd 1 audio_stats_cmd: resd 1 ; audio_buffer: resd 1 ; virtual address of user's audio buffer audio_p_buffer: resd 1 ; Physical address of user's audio buffer audio_buff_size: resd 1 ; user's audio buffer size (half buffer size) audio_dma_buff: resd 1 ; dma buffer address audio_dmabuff_size: resd 1 ; dma buffer size (2 * half buffer size) ; 05/06/2024 dma_hbuff_size: resd 1 ; dma half buffer size ; audio_flag: resb 1 ; dma buffer flag (1st half = 0, 2nd half = 1) audio_user: resb 1 ; user number of the owner audio_cb_mode: resb 1 ; 0 = signal response byte method ; 1 = callback method ; 2 = s.r.b. method with auto increment audio_srb: resb 1 ; signal response byte value audio_cb_addr: resd 1 ; callback service address or s.r.b. address ; (s.r.b. addr is physical, cbs addr is virtual) audio_bps: resb 1 ; selected mode: 8 bit, 16 bit audio_stmo: resb 1 ; selected mode: mono /stereo audio_freq: resw 1 ; sampling rate ; 20/11/2023 VRA: resb 1 audio_mode: resb 1 ; 21/04/2017 audio_play_cmd: resb 1 ; Play/Stop command (1 = play, 0 = stop) ; 21/11/2023 ;audio_civ: ; 28/05/2017 ; Current Buffer Index (AC'97) ; 23/05/2024 LVI: ; AC'97 Last Valid Buffer Index audio_flag_eol: resb 1 ; End of Link status (vt8233, EOL/FLAG) audio_master_volume: audio_master_volume_l: resb 1 ; sound volume (lineout) left channel audio_master_volume_r: resb 1 ; sound volume (lineout) right channel ; 24/05/2024 audio_pcmo_volume: audio_pcmo_volume_l: resb 1 ; PCM out volume left channel audio_pcmo_volume_r: resb 1 ; PCM out volume right channel ; 02/06/2024 ;alignb 4 ; 20/11/2023 ; 28/05/2017 ; AC'97 Audio Controller Base Adress Registers ;NAMBAR: resw 1 ; Native Audio Mixer Base Address ;NABMBAR: resw 1 ; Native Audio Bus Mastering Base Address ; 02/06/2024 alignb 8 ; 21/04/2017 audio_bdl_buff: resd 32*8 ; VT8233 (AC97) BDL Buffer Size ; 12/05/2017 base_addr: resd 1 ; 'direct_memory_access' (memory.s) ; 01/06/2024 reset: resb 1 ; AC97 init ; 28/08/2017 ; 20/08/2017 ;resb 1 ; dma_user: resb 1 ; user number for sysdma dma_channel: resb 1 ; dma channel for sysdma dma_mode: resb 1 ; dma mode for sysdma dma_addr: resd 1 ; dma buffer physical addr for sysdma dma_size: resd 1 ; dma buffer size (in bytes) for sysdma dma_start: resd 1 ; dma start address for sysdma dma_count: resd 1 ; dma count (in bytes) for sysdma ; 04/12/2023 %if 0 alignb 65536 ; 09/08/2017 ; 12/05/2017 sb16_dma_buffer: resb 65536 ; DMA buffer for sb16 audio playing. %endif