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| author | Jens Arnold <amiconn@rockbox.org> | 2010-03-09 23:44:25 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2010-03-09 23:44:25 +0000 |
| commit | 3710ae92cc1aa7e13095003635ea9ed6a6e419d6 (patch) | |
| tree | b2ada9a6e7dc9a1a28df2ee45c962fcb961f3899 /apps/plugins | |
| parent | 1dfa0e92dc2a2579e4372ada8c33e2af486c344a (diff) | |
| download | rockbox-3710ae92cc1aa7e13095003635ea9ed6a6e419d6.zip rockbox-3710ae92cc1aa7e13095003635ea9ed6a6e419d6.tar.gz rockbox-3710ae92cc1aa7e13095003635ea9ed6a6e419d6.tar.bz2 rockbox-3710ae92cc1aa7e13095003635ea9ed6a6e419d6.tar.xz | |
Coldfire targets: tiny optimisation.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25098 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins')
| -rw-r--r-- | apps/plugins/doom/r_draw.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/apps/plugins/doom/r_draw.c b/apps/plugins/doom/r_draw.c index ee107f9..8208972 100644 --- a/apps/plugins/doom/r_draw.c +++ b/apps/plugins/doom/r_draw.c @@ -534,12 +534,10 @@ void R_DrawSpan (void) "clr.l %%d4 \n" "spanloop: \n" "move.l %[xfrac], %%d1 \n" - "move.l %[yfrac], %%d2 \n" - "lsr.l #8,%%d1 \n" - "lsr.l #8,%%d2 \n" - "lsr.l #8,%%d1 \n" - "lsr.l #2,%%d2 \n" + "swap %%d1 \n" "and.l #63,%%d1 \n" + "move.l %[yfrac], %%d2 \n" + "lsr.l %[ten],%%d2 \n" "and.l #4032,%%d2 \n" "or.l %%d2, %%d1 \n" "move.b (%[source], %%d1), %%d4 \n" @@ -551,9 +549,10 @@ void R_DrawSpan (void) "endspanloop: \n" : /* outputs */ : /* inputs */ + [ten] "d"(10), [count] "d" (ds_x2-ds_x1+1), - [xfrac] "d" (ds_xfrac), - [yfrac] "d" (ds_yfrac), + [xfrac] "a" (ds_xfrac), + [yfrac] "a" (ds_yfrac), [source] "a" (ds_source), [colormap] "a" (ds_colormap), [dest] "a" (topleft+ds_y*SCREENWIDTH +ds_x1), |