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| author | Christopher Faylor <me+cygwin@cgf.cx> | 2000-02-17 19:39:46 +0000 |
|---|---|---|
| committer | Christopher Faylor <me+cygwin@cgf.cx> | 2000-02-17 19:39:46 +0000 |
| commit | 43b55bace5fad27af5da7a99784667363b92c45d (patch) | |
| tree | 17fe82f6ba0d93b76d10dd73d4945ab81b69db40 /newlib/libc/machine/sh/strcpy.S | |
| parent | 8dabd7496a9eeaca2a7180c0a176059ba9229bb2 (diff) | |
| download | gdb-43b55bace5fad27af5da7a99784667363b92c45d.tar.gz | |
import newlib-2000-02-17 snapshotnewlib-2000-02-17SNAPSHOT
Diffstat (limited to 'newlib/libc/machine/sh/strcpy.S')
| -rw-r--r-- | newlib/libc/machine/sh/strcpy.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/newlib/libc/machine/sh/strcpy.S b/newlib/libc/machine/sh/strcpy.S new file mode 100644 index 00000000000..63aa7e75bff --- /dev/null +++ b/newlib/libc/machine/sh/strcpy.S @@ -0,0 +1,41 @@ +! Entry: r4: destination +! r5: source +! Exit: r0: destination +! r1-r2,r5: clobbered + +#include "asm.h" + +ENTRY(strcpy) + mov r4,r0 + or r5,r0 + tst #3,r0 + SL(bf, L_setup_char_loop, mov r4,r0) + mov.l @r5+,r1 + mov #0,r2 + cmp/str r2,r1 + SL(bt, Longword_loop_end, sub r5,r0) + .align 2 +Longword_loop: + mov.l r1,@(r0,r5) + mov.l @r5+,r1 + cmp/str r2,r1 + bt Longword_loop_end + mov.l r1,@(r0,r5) + mov.l @r5+,r1 + cmp/str r2,r1 + bf Longword_loop +Longword_loop_end: + add #-4,r5 + add #3,r0 + .align 2 +L_char_loop: + mov.b @r5+,r1 +L_char_loop_start: + tst r1,r1 + SL(bf, L_char_loop, mov.b r1,@(r0,r5)) + rts + mov r4,r0 +L_setup_char_loop: + mov.b @r5+,r1 + bra L_char_loop_start + sub r5,r0 |