source: xtideuniversalbios/trunk/Assembly_Library/Inc/DosFunctions.inc@ 589

Last change on this file since 589 was 589, checked in by Krister Nordvall, 9 years ago

Changes:

  • BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
  • Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
  • Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
  • Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
  • Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
  • Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
  • Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
  • XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
  • Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
  • Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
  • Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
  • The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
  • Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
  • SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
  • BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
  • Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
  • A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
  • Other minor optimizations and fixes.
File size: 2.5 KB
Line 
1; Project name : AssemblyLibrary
2; Description : Defines for MS-DOS functions.
3%ifndef DOS_FUNCTIONS_INC
4%define DOS_FUNCTIONS_INC
5
6; DOS interrupts
7DOS_INTERRUPT_21h EQU 21h
8DOS_CRITICAL_ERROR_HANDLER_24h EQU 24h
9DOS_TSR_MULTIPLEX_INTERRUPT_2Fh EQU 2Fh
10
11; DOS functions
12WRITE_CHARACTER_TO_STANDARD_OUTPUT EQU 02h ; DOS 1+
13WRITE_STRING_TO_STANDARD_OUTPUT EQU 09h ; DOS 1+
14SELECT_DEFAULT_DRIVE EQU 0Eh ; DOS 1+
15GET_CURRENT_DEFAULT_DRIVE EQU 19h ; DOS 1+
16SET_INTERRUPT_VECTOR EQU 25h ; DOS 1+
17GET_DISK_TRANSFER_AREA_ADDRESS EQU 2Fh ; DOS 2+
18GET_DOS_VERSION EQU 30h ; DOS 2+
19GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE EQU 32h ; DOS 2+
20GET_INTERRUPT_VECTOR EQU 35h ; DOS 2+
21SET_CURRENT_DIRECTORY EQU 3Bh ; DOS 2+
22CREATE_OR_TRUNCATE_FILE EQU 3Ch ; DOS 2+
23OPEN_EXISTING_FILE EQU 3Dh ; DOS 2+
24CLOSE_FILE EQU 3Eh ; DOS 2+
25READ_FROM_FILE_OR_DEVICE EQU 3Fh ; DOS 2+
26WRITE_TO_FILE_OR_DEVICE EQU 40h ; DOS 2+
27SET_CURRENT_FILE_POSITION EQU 42h ; DOS 2+
28CHECK_IF_BLOCK_DEVICE_REMOTE EQU 4409h ; DOS 3.1+
29GET_CURRENT_DIRECTORY EQU 47h ; DOS 2+
30TERMINATE_WITH_RETURN_CODE EQU 4Ch ; DOS 2+
31FIND_FIRST_MATCHING_FILE EQU 4Eh ; DOS 2+
32FIND_NEXT_MATCHING_FILE EQU 4Fh ; DOS 2+
33
34; DOS errors
35ERR_DOS_FUNCTION_NUMBER_INVALID EQU 01h
36ERR_DOS_INVALID_DRIVE EQU 0Fh
37ERR_DOS_DRIVE_NOT_READY EQU 15h
38
39
40; DOS Program Segment Prefix (PSP, first 256 (100h) bytes on top of program)
41struc PSP
42 .int20hInstruction resb 2
43 .wSizeOfMemoryInParagraphs resb 2
44 .reservedAt4h resb 1
45 .callToDosFunctionDispatcher resb 5
46 .fpInt22hTerminate resb 4
47 .fpInt23hCtrlC resb 4
48 .fpInt24hCriticalError resb 4
49 .reservedAt16h resb 22
50 .wEnvironmentSegment resb 2
51 .reservedAt2Eh resb 34
52 .int21hAndRetfInstructions resb 3
53 .reservedAt53h resb 9
54 .FCB1 resb 16
55 .FCB2 resb 20
56 .DiskTransferArea:
57 .bCommandLineLength resb 1
58 .szCommandLine resb 127
59endstruc
60
61
62; DOS DTA (Disk Transfer Area)
63struc DTA
64 ; Undocumented fields
65 .reservedAt0h resb 21
66 ; Documented fields
67 .bFileAttributes resb 1 ; 15h, Attribute of matching file
68 .wFileTime resb 2 ; 16h, File time
69 .wFileDate resb 2 ; 18h, File date
70 .dwFileSize resb 4 ; 1Ah, File size in bytes
71 .szFile resb 13 ; 1Eh, ASCIZ filename + extension
72endstruc
73
74
75%endif ; DOS_FUNCTIONS_INC
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