ack/mach/m68k2/libem/csa4.s
1990-08-21 10:17:49 +00:00

29 lines
431 B
ArmAsm

.define .csa4
.sect .text
.sect .rom
.sect .data
.sect .bss
.sect .text
.csa4:
move.l (a0)+,a1 ! default address
sub.l (a0)+,d0 ! index - lower bound
blt 1f
cmp.l (a0)+,d0 ! rel. index <-> upper - lower bound
bgt 1f
asl.l #2,d0
add.l d0,a0
move.l (a0),d1 ! test jump address
move.l d1,d0
beq 1f
move.l d1,a1
bra 3f
1:
move.l a1,d0 ! test default jump address
beq 2f
3:
jmp (a1)
2:
move.w #ECASE,-(sp)
jmp .fat