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* Use fast multiplication macro in some more places. * Better pipelining on SH1.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10652 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-08-19 06:29:23 +00:00
parent 46ae870feb
commit bd7248d106
2 changed files with 10 additions and 12 deletions
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5
apps/plugins/lib/gray_draw.c
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@ -1303,14 +1303,13 @@ static void _writearray(unsigned char *address, const unsigned char *src,
"bf .wa_skip \n" /* skip this pixel */
"mov.b @%[src], r0 \n" /* load src byte */
"mov #75, r1 \n"
"extu.b r0, r0 \n" /* extend unsigned */
"mov.b @(r0,%[trns]), r0 \n" /* idxtable into pattern index */
"mulu r1, %[rnd] \n" /* multiply by 75 */
"extu.b r0, r0 \n" /* extend unsigned */
"shll2 r0 \n"
"mov.l @(r0,%[bpat]), r4 \n" /* r4 = bitpattern[byte]; */
"mov #75, r0 \n"
"mulu r0, %[rnd] \n" /* multiply by 75 */
"sts macl, %[rnd] \n"
"add #74, %[rnd] \n" /* add another 74 */
/* Since the lower bits are not very random: */