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| author | Xavier ASUS <xavi92psx@gmail.com> | 2019-10-18 00:31:54 +0200 |
|---|---|---|
| committer | Xavier ASUS <xavi92psx@gmail.com> | 2019-10-18 00:31:54 +0200 |
| commit | 268a53de823a6750d6256ee1fb1e7707b4b45740 (patch) | |
| tree | 42c1799a9a82b2f7d9790ee9fe181d72a7274751 /device/lib/stm8/memccpy.asm | |
| download | sdcc-gas-268a53de823a6750d6256ee1fb1e7707b4b45740.tar.gz | |
sdcc-3.9.0 fork implementing GNU assembler syntax
This fork aims to provide better support for stm8-binutils
Diffstat (limited to 'device/lib/stm8/memccpy.asm')
| -rw-r--r-- | device/lib/stm8/memccpy.asm | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/device/lib/stm8/memccpy.asm b/device/lib/stm8/memccpy.asm new file mode 100644 index 0000000..9d066a1 --- /dev/null +++ b/device/lib/stm8/memccpy.asm @@ -0,0 +1,100 @@ +;-------------------------------------------------------- +; File Created by SDCC : free open source ANSI-C Compiler +; Version 3.9.3 #11345 (Linux) +;-------------------------------------------------------- + .module memccpy + .optsdcc -mstm8 + +;-------------------------------------------------------- +; Public variables in this module +;-------------------------------------------------------- + .globl _memccpy +;-------------------------------------------------------- +; ram data +;-------------------------------------------------------- + .area DATA +;-------------------------------------------------------- +; ram data +;-------------------------------------------------------- + .area INITIALIZED +;-------------------------------------------------------- +; absolute external ram data +;-------------------------------------------------------- + .area DABS (ABS) + +; default segment ordering for linker + .area HOME + .area GSINIT + .area GSFINAL + .area CONST + .area INITIALIZER + .area CODE + +;-------------------------------------------------------- +; global & static initialisations +;-------------------------------------------------------- + .area HOME + .area GSINIT + .area GSFINAL + .area GSINIT +;-------------------------------------------------------- +; Home +;-------------------------------------------------------- + .area HOME + .area HOME +;-------------------------------------------------------- +; code +;-------------------------------------------------------- + .area CODE +; ../memccpy.c: 31: void *memccpy (void *restrict dst, const void *restrict src, int c, size_t n) +; ----------------------------------------- +; function memccpy +; ----------------------------------------- +_memccpy: + sub sp, #7 +; ../memccpy.c: 33: char *d = dst; + ldw x, (0x0a, sp) +; ../memccpy.c: 34: const char *s = src; + ldw y, (0x0c, sp) +; ../memccpy.c: 36: while (n--) + ldw (0x04, sp), y + ldw (0x06, sp), x + ldw y, (0x10, sp) +00103$: + ldw (0x02, sp), y + decw y + ldw x, (0x02, sp) + jreq 00105$ +; ../memccpy.c: 37: if ((*d++ = *s++) == (unsigned char)c) + ldw x, (0x04, sp) + ld a, (x) + ld (0x01, sp), a + ldw x, (0x04, sp) + incw x + ldw (0x04, sp), x + ldw x, (0x06, sp) + ld a, (0x01, sp) + ld (x), a + ldw x, (0x06, sp) + incw x + ldw (0x06, sp), x + ldw (0x02, sp), x + ld a, (0x0f, sp) + cp a, (0x01, sp) + jrne 00103$ +; ../memccpy.c: 38: return (d); + ldw y, (0x02, sp) + ldw (0x06, sp), y + ldw x, y +; ../memccpy.c: 40: return (0); + .byte 0x21 +00105$: + clrw x +00106$: +; ../memccpy.c: 41: } + addw sp, #7 + ret + .area CODE + .area CONST + .area INITIALIZER + .area CABS (ABS) |