ack/mach/m65oo2/libem/csb2.s

30 lines
372 B
ArmAsm

.sect .text; .sect .rom; .sect .data; .sect .bss
.define .csb2
.sect .text
.csb2:
!bx, descriptor address
!ax, index
mov dx,(bx)
mov cx,2(bx)
1:
add bx,4
dec cx
jl 4f
cmp ax,(bx)
jne 1b
mov bx,2(bx)
2:
test bx,bx
jnz 3f
.extern ECASE
.extern .fat
mov ax,ECASE
push ax
jmp .fat
3:
jmp bx
4:
mov bx,dx
jmp 2b