DRSIVEC.ASM

; DRSI 8530 card interrupt hooks

;%    .MODEL  MEMMOD,C
include asmgloba.h        
	LOCALS
	%MACS
	.LALL

	extrn   Stktop,Spsave,Sssave,drint:proc,doret:proc,eoi:proc

	.CODE
dbase   dw      @Data           ; save loc for ds (must be in code segment)

; dr0vec - DRSI card #0 interrupt handler
	public  dr0vec
	label   dr0vec far
	push    ds              ; save on user stack
	mov     ds,cs:dbase     ; establish interrupt data segment

	mov     Sssave,ss       ; stash user stack context
	mov     Spsave,sp

	mov     ss,cs:dbase
	lea     sp,Stktop

    ; push    ax              ; save user regs on interrupt stack
    ; push    bx
    ; push    cx
    ; push    dx
    ; push    bp
    ; push    si
    ; push    di
    PUSHALL
    push    es
	call    eoi

	mov     ax,0            ; arg for service routine
	push    ax
	call    drint
	pop     ax
	jmp     doret

	end