gbdk-2020 | GameBoy Development Kit |
| download: https://git.y1.nz/archives/gbdk.tar.gz | |
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gbdk-lib/libc/asm/sm83/_strcpy.s
1 .module strcpy
2
3 .area _HOME
4
5 ; char *strcpy(char *dest, const char *source)
6 _strcpy::
7 lda hl,2(sp)
8 ld a,(hl+)
9 ld e, a
10 ld a,(hl+)
11 ld d, a
12 ld a,(hl+)
13 ld h,(hl)
14 ld l,a
15
16 push de
17 1$:
18 ld a,(hl+)
19 ld (de),a
20 inc de
21 or a,a
22 jr nz,1$
23
24 pop de
25 ret
26
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