mirror of
https://github.com/cc65/cc65.git
synced 2024-08-28 02:29:22 +00:00
34 lines
430 B
ArmAsm
34 lines
430 B
ArmAsm
|
;
|
||
|
; Ullrich von Bassewitz, 31.05.1998
|
||
|
;
|
||
|
; char* strcpy (char* dest, const char* src);
|
||
|
;
|
||
|
|
||
|
.export _strcpy
|
||
|
.import popax
|
||
|
.importzp ptr1, ptr2, ptr3
|
||
|
|
||
|
_strcpy:
|
||
|
sta ptr1 ; Save src
|
||
|
stx ptr1+1
|
||
|
jsr popax ; Get dest
|
||
|
sta ptr2
|
||
|
stx ptr2+1
|
||
|
sta ptr3 ; remember for function return
|
||
|
stx ptr3+1
|
||
|
ldy #$00
|
||
|
|
||
|
L1: lda (ptr1),y
|
||
|
sta (ptr2),y
|
||
|
beq L9
|
||
|
iny
|
||
|
bne L1
|
||
|
inc ptr1+1
|
||
|
inc ptr2+1
|
||
|
bne L1
|
||
|
|
||
|
L9: lda ptr3
|
||
|
ldx ptr3+1
|
||
|
rts
|
||
|
|