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SH1: Better placement of the C library routine references (gcc 3.4.x -Os and -O2 proof).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9748 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-04-20 19:48:02 +00:00
parent 29ab31e8f1
commit d43e719d59
2 changed files with 18 additions and 26 deletions
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20
apps/plugins/lib/gray_core.c
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@ -509,6 +509,14 @@ void gray_update_rect(int x, int y, int width, int height)
"bra .ur_end \n"
"nop \n"
/* References to C library routines used in the precalc block */
".align 2 \n"
".ashlsi3: \n" /* C library routine: */
".long ___ashlsi3 \n" /* shift r4 left by r5, res. in r0 */
".lshrsi3: \n" /* C library routine: */
".long ___lshrsi3 \n" /* shift r4 right by r5, res. in r0 */
/* both routines preserve r4, destroy r5 and take ~16 cycles */
".ur_sloop: \n" /** short loop (nothing to keep) **/
"shlr r1 \n" /* rotate lsb of pattern 1 to t bit */
"rotcl r0 \n" /* rotate t bit into r0 */
@ -740,18 +748,6 @@ void gray_update_rect(int x, int y, int width, int height)
dst += _gray_info.width;
}
}
#if CONFIG_CPU == SH7034
/* References to C library routines used in gray_update_rect() */
asm (
".align 2 \n"
".ashlsi3: \n" /* C library routine: */
".long ___ashlsi3 \n" /* shift r4 left by r5, return in r0 */
".lshrsi3: \n" /* C library routine: */
".long ___lshrsi3 \n" /* shift r4 right by r5, return in r0 */
/* both routines preserve r4, destroy r5 and take ~16 cycles */
);
#endif /* CONFIG_CPU == SH7034 */
#endif /* !SIMULATOR */
/* Update the whole greyscale overlay */