.sect .text; .sect .rom; .sect .data; .sect .bss; .sect .text
.define exg~
! $Header$
exg~: jsr pc,save~
mov sp,r4
sub r0,sp
mov sp,r3
mov r0,r1
1:
mov (r4)+,(r3)+
sob r0,1b
asr r1
sob r1,1b
mov r4,sp
jmp retu~