forked from len0rd/rockbox
Coldfire targets: tiny optimisation.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25098 a1c6a512-1295-4272-9138-f99709370657
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1dfa0e92dc
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1 changed files with 6 additions and 7 deletions
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@ -534,12 +534,10 @@ void R_DrawSpan (void)
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"clr.l %%d4 \n"
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"spanloop: \n"
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"move.l %[xfrac], %%d1 \n"
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"move.l %[yfrac], %%d2 \n"
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"lsr.l #8,%%d1 \n"
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"lsr.l #8,%%d2 \n"
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"lsr.l #8,%%d1 \n"
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"lsr.l #2,%%d2 \n"
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"swap %%d1 \n"
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"and.l #63,%%d1 \n"
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"move.l %[yfrac], %%d2 \n"
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"lsr.l %[ten],%%d2 \n"
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"and.l #4032,%%d2 \n"
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"or.l %%d2, %%d1 \n"
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"move.b (%[source], %%d1), %%d4 \n"
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@ -551,9 +549,10 @@ void R_DrawSpan (void)
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"endspanloop: \n"
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: /* outputs */
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: /* inputs */
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[ten] "d"(10),
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[count] "d" (ds_x2-ds_x1+1),
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[xfrac] "d" (ds_xfrac),
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[yfrac] "d" (ds_yfrac),
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[xfrac] "a" (ds_xfrac),
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[yfrac] "a" (ds_yfrac),
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[source] "a" (ds_source),
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[colormap] "a" (ds_colormap),
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[dest] "a" (topleft+ds_y*SCREENWIDTH +ds_x1),
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