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FUNC6H.ASM
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Assembly Source File
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1989-08-10
|
1KB
|
40 lines
Include multi.inc
Include model.inc
;==============================================================================
;
; CAS function 06h -- Find Next Entry in Queue
;
; Format:
; int CASFindNext (BYTE queue)
; Input:
; queue to search
; Output:
; Returns event handle or negative error code
;==============================================================================
.CODE
CASFindNext PROC arg1:BYTE
push bx ; save registers
push dx
mov ax,MUX ; load multiplex number
mov ah,al ; move into ah
mov al,06h ; CAS function 6
mov dl,arg1 ; direction to search
int 2Fh
cmp ax,0 ; ax = 0?
jne FINISH ; find first failed, return err. code
mov ax,bx ; move event handle to ax
FINISH:
pop dx ; restore registers
pop bx
ret
CASFindNext endp
END