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| author | bde <bde@FreeBSD.org> | 1999-01-09 13:43:09 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1999-01-09 13:43:09 +0000 |
| commit | 2616cfa856e38baf5cd8a677da514b87e17304d6 (patch) | |
| tree | adfda5597222a9a77d433f003ca6c1283b76e9e2 /sys/i386 | |
| parent | 4c2d702e3a374bf88400dcc51a081cb840be21ea (diff) | |
| download | FreeBSD-src-2616cfa856e38baf5cd8a677da514b87e17304d6.zip FreeBSD-src-2616cfa856e38baf5cd8a677da514b87e17304d6.tar.gz | |
Removed buggy, `#if 0'ed asm version of translate_bytes() instead of
fixing it. See rev.1.22 of ../sound/audio.c for fixes. When both
the C version and the asm version are inlined, and everything is cached,
the asm version is 1.75 times slower than the C version on P5's. On
K6's, it is only 1.25 times slower.
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/isa/snd/sound.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/sys/i386/isa/snd/sound.c b/sys/i386/isa/snd/sound.c index f8b5cfb..6a5a92d 100644 --- a/sys/i386/isa/snd/sound.c +++ b/sys/i386/isa/snd/sound.c @@ -1505,7 +1505,6 @@ change_bits(mixer_tab *t, u_char *regval, int dev, int chn, int newval) * full-duplex) */ -#if 1 void translate_bytes (u_char *table, u_char *buff, int n) { @@ -1517,22 +1516,5 @@ translate_bytes (u_char *table, u_char *buff, int n) for (i = 0; i < n; ++i) buff[i] = table[buff[i]]; } -#else -/* inline */ -void -translate_bytes (const void *table, void *buff, int n) -{ - if (n > 0) { - __asm__ ( " cld\n" - "1: lodsb\n" - " xlatb\n" - " stosb\n" - " loop 1b\n": - : "b" (table), "c" (n), "D" (buff), "S" (buff) - : "bx", "cx", "di", "si", "ax"); - } -} - -#endif #endif /* NPCM > 0 */ |
