ack/mach/m65oo2/libem/cmi4.s

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2024-02-22 15:13:52 +00:00
.sect .text; .sect .rom; .sect .data; .sect .bss
.define .cmi4
.sect .text
.cmi4:
pop bx ! return address
pop cx
pop dx
pop ax
push si
mov si,sp
xchg bx,2(si)
pop si
cmp bx,dx
jg 1f
jl 2f
cmp ax,cx
ja 1f
je 3f
2:
mov ax,-1
ret
3:
xor ax,ax
ret
1:
mov ax,1
ret