Changeset 167 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h.asm


Ignore:
Timestamp:
Aug 21, 2011, 3:42:15 PM (13 years ago)
Author:
aitotat@…
google:author:
aitotat@gmail.com
Message:

Changes to XTIDE Universal BIOS:

  • Old Int 13h transfer functions work again.
  • Fixes to eINT13h (EBIOS) support.
File:
1 edited

Legend:

Unmodified
Added
Removed

  • trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h.asm

    r165 r167  
    4242ALIGN JUMP_ALIGN
    4343.JumpToEbiosFunction:
    44     test    BYTE [cs:ROMVARS.wFlags], FLG_ROMVARS_FULLMODE  ; Full mode?
    45     jz      SHORT Int13h_UnsupportedFunction
    46     test    BYTE [di+DPT.bFlagsLow], FLG_DRVNHEAD_LBA       ; LBA supported?
    47     jz      SHORT Int13h_UnsupportedFunction
    48     cmp     ah, 48h                     ; Above last valid function?
     44    test    BYTE [cs:ROMVARS.wFlags], FLG_ROMVARS_FULLMODE
     45    jz      SHORT Int13h_UnsupportedFunction    ; No eINT 13h in lite mode
     46    test    BYTE [di+DPT.bFlagsLow], FLG_DRVNHEAD_LBA
     47    jz      SHORT Int13h_UnsupportedFunction    ; No eINT 13h for CHS drives
     48    cmp     ah, 48h
    4949    ja      SHORT Int13h_UnsupportedFunction
    50     sub     bx, 41h<<1                  ; BX = Offset to EBIOS jump table
     50    sub     bx, 41h<<1                  ; BX = Offset to eINT 13h jump table
    5151    jl      SHORT Int13h_UnsupportedFunction
    5252    jmp     [cs:bx+g_rgwEbiosFunctionJumpTable]
Note: See TracChangeset for help on using the changeset viewer.