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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-large/_strcmp.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-large/_strcmp.asm')
| -rw-r--r-- | device/lib/stm8-large/_strcmp.asm | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/device/lib/stm8-large/_strcmp.asm b/device/lib/stm8-large/_strcmp.asm new file mode 100644 index 0000000..d20d229 --- /dev/null +++ b/device/lib/stm8-large/_strcmp.asm @@ -0,0 +1,94 @@ +;-------------------------------------------------------- +; File Created by SDCC : free open source ANSI-C Compiler +; Version 3.9.3 #11345 (Linux) +;-------------------------------------------------------- + .module _strcmp + .optsdcc -mstm8 + +;-------------------------------------------------------- +; Public variables in this module +;-------------------------------------------------------- + .globl _strcmp +;-------------------------------------------------------- +; 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 +; ../_strcmp.c: 34: int strcmp ( const char * asrc, const char * adst ) +; ----------------------------------------- +; function strcmp +; ----------------------------------------- +_strcmp: + sub sp, #8 +; ../_strcmp.c: 40: const char * src = asrc; + ldw y, (0x0c, sp) + ldw (0x01, sp), y +; ../_strcmp.c: 41: const char * dst = adst; + ldw y, (0x0e, sp) + ldw (0x03, sp), y +; ../_strcmp.c: 43: while( ! (*src - *dst) && *dst) +00102$: + ldw x, (0x01, sp) + ld a, (x) + clrw x + ld xl, a + ldw y, (0x03, sp) + ld a, (y) + ld (0x06, sp), a + clr (0x05, sp) + subw x, (0x05, sp) + ldw (0x07, sp), x + jrne 00104$ + tnz a + jreq 00104$ +; ../_strcmp.c: 44: ++src, ++dst; + ldw x, (0x01, sp) + incw x + ldw (0x07, sp), x + ldw (0x01, sp), x + ldw x, (0x03, sp) + incw x + ldw (0x03, sp), x + jra 00102$ +00104$: +; ../_strcmp.c: 46: return *src - *dst; + ldw x, (0x07, sp) +; ../_strcmp.c: 55: } + addw sp, #8 + retf + .area CODE + .area CONST + .area INITIALIZER + .area CABS (ABS) |