ack/mach/z8000/libem/cuu.s
1987-01-19 10:51:50 +00:00

21 lines
273 B
ArmAsm

.define cuu
.sect .text
.sect .rom
.sect .data
.sect .bss
.sect .text
cuu:
popl RR2, *RR14
pop R0, *RR14
pop R1, *RR14
sub R0, R1 !expansion in bytes
jr LE, 1f
sra R0 !expansion in words
jp EQ, *RR2
2: push *RR14, $0
djnz R0, 2b
jp *RR2
1: sub R15, R0
jp *RR2