source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH43h_ExtendedWriteSectors.asm @ 165

; Project name  :   XTIDE Universal BIOS
; Description   :   Int 13h function AH=43h, Extended Write Sectors.

; Section containing code
SECTION .text

;--------------------------------------------------------------------
; Int 13h function AH=43h, Extended Write Sectors.
;
; AH43h_HandlerForExtendedWriteSectors
;   Parameters:
;       SI:     Same as in INTPACK
;       DL:     Translated Drive number
;       DS:DI:  Ptr to DPT (in RAMVARS segment)
;       SS:BP:  Ptr to IDEPACK
;   Parameters on INTPACK:
;       AL:     0 or 1 to write with verify off
;               2 to write with verify (if supported)
;       DS:SI:  Ptr to Disk Address Packet
;   Returns with INTPACK:
;       AH:     Int 13h return status
;       CF:     0 if succesfull, 1 if error
;   Return with Disk Address Packet in INTPACK:
;       .bSectorCount   Number of sectors written successfully
;--------------------------------------------------------------------
ALIGN JUMP_ALIGN
AH43h_HandlerForExtendedWriteSectors:
    cmp     BYTE [bp+IDEPACK.intpack+INTPACK.al], 2 ; Verify requested?
    jae     SHORT .WriteWithVerifyNotSupported

    call    AH42h_LoadDapToESSIandVerifyForTransfer
    call    CommandLookup_GetEbiosIndexToBX
    mov     ah, [cs:bx+g_rgbWriteCommandLookup]
    mov     bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_DRQ, FLG_STATUS_DRQ)
%ifdef USE_186
    push    Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
    jmp     Idepack_ConvertDapToIdepackAndIssueCommandFromAH
%else
    call    Idepack_ConvertDapToIdepackAndIssueCommandFromAH
    jmp     Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
%endif

.WriteWithVerifyNotSupported:
    jmp     AH2h_ExitInt13hSinceSectorCountInIntpackIsZero