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HAM Radio 1
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HamRadio.cdr
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misc
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src0131
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pc100vec.asm
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Assembly Source File
|
1991-01-26
|
669b
|
43 lines
; PC-100 (8530 card) interrupt hooks
.MODEL MEMMOD,C
LOCALS
%MACS
.LALL
extrn Stktop,Spsave,Sssave,pcint:proc,doret:proc,eoi:proc
.CODE
dbase dw @Data ; save loc for ds (must be in code segment)
; pc0vec - PC-100 card #0 interrupt handler
public pc0vec
label pc0vec far
push ds ; save on user stack
mov ds,cs:dbase
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
push es
call eoi
mov ax,0 ; arg for service routine
push ax
call pcint
pop ax
jmp doret
end