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author | Tomer Shalev <shalev.tomer@gmail.com> | 2010-01-17 22:03:36 +0000 |
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committer | Tomer Shalev <shalev.tomer@gmail.com> | 2010-01-17 22:03:36 +0000 |
commit | 563f2602f471208cb8544a36539a79dcceaad643 (patch) | |
tree | 0d78bda3fcd3ee085b2be88b9eba9255e22f4e6c /apps/plugins/fractals/cpu_coldfire.h | |
parent | d8123629058c534835058f2db94ba1c2636408e2 (diff) | |
download | rockbox-563f2602f471208cb8544a36539a79dcceaad643.tar.gz rockbox-563f2602f471208cb8544a36539a79dcceaad643.zip |
Fractals: Have helper functions in header file to keep them inlined
- Should fix performance degradation caused because of the split
- Thanks for all who noticed (amiconn et al.)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24266 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/fractals/cpu_coldfire.h')
-rw-r--r-- | apps/plugins/fractals/cpu_coldfire.h | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/apps/plugins/fractals/cpu_coldfire.h b/apps/plugins/fractals/cpu_coldfire.h index 452f18e2c5..9be207ee2f 100644 --- a/apps/plugins/fractals/cpu_coldfire.h +++ b/apps/plugins/fractals/cpu_coldfire.h @@ -22,8 +22,39 @@ #ifndef _CPU_COLDFIRE_H #define _CPU_COLDFIRE_H -inline short muls16_asr10(short a, short b); +inline static short muls16_asr10(short a, short b) +{ + asm ( + "muls.w %[a],%[b] \n" + "asr.l #8,%[b] \n" + "asr.l #2,%[b] \n" + : /* outputs */ + [b]"+d"(b) + : /* inputs */ + [a]"d" (a) + ); + return b; +} -inline long muls32_asr26(long a, long b); +inline static long muls32_asr26(long a, long b) +{ + long r, t1; + asm ( + "mac.l %[a], %[b], %%acc0 \n" /* multiply */ + "move.l %%accext01, %[t1] \n" /* get low part */ + "movclr.l %%acc0, %[r] \n" /* get high part */ + "asl.l #5, %[r] \n" /* hi <<= 5, plus one free */ + "lsr.l #3, %[t1] \n" /* lo >>= 3 */ + "and.l #0x1f, %[t1] \n" /* mask out unrelated bits */ + "or.l %[t1], %[r] \n" /* combine result */ + : /* outputs */ + [r] "=d"(r), + [t1]"=d"(t1) + : /* inputs */ + [a] "d" (a), + [b] "d" (b) + ); + return r; +} #endif |