30 lines
317 B
ArmAsm
30 lines
317 B
ArmAsm
/ $Header$
|
|
.globl blm~
|
|
.globl save~,retu~
|
|
|
|
/ Size in r0
|
|
blm~:
|
|
jsr pc,save~
|
|
mov (sp)+,r2
|
|
mov (sp)+,r3
|
|
mov r0,r1
|
|
asr r0
|
|
beq 2f
|
|
/ Now avoid wrong copy.
|
|
/ The pieces may overlap !
|
|
cmp r3,r2
|
|
beq 2f
|
|
blt 3f
|
|
1:
|
|
mov (r3)+,(r2)+
|
|
sob r0,1b
|
|
2:
|
|
jmp retu~
|
|
3:
|
|
add r1,r3
|
|
add r1,r2
|
|
4:
|
|
mov -(r3),-(r2)
|
|
sob r0,4b
|
|
br 2b
|