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Another small opt for the SH1 64 bit multiplication.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7276 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2005-08-01 01:41:35 +00:00
parent a691db61a6
commit ec62b1ac56
1 changed files with 6 additions and 6 deletions
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12
apps/plugins/mandelbrot.c
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@ -109,20 +109,20 @@ asm (
"mulu r5,r6 \n" /* d * f */
"add r1,r0 \n" /* r0 += r1 */
"sts macl,r1 \n" /* r1 = d * f */
"mulu r5,r7 \n" /* d * h */
"add r1,r0 \n" /* r0 += r1 */
"sts macl,r1 \n" /* r1 = d * h */
"mulu r2,r7 \n" /* c * h */
"add r1,r0 \n" /* r0 += r1 */
"sts macl,r2 \n" /* r2 = c * h */
"mulu r5,r3 \n" /* d * g */
"clrt \n"
"sts macl,r3 \n" /* r3 = d * g */
"addc r2,r3 \n" /* r3 += r2, carry->r2 */
"movt r2 \n"
"mov r3,r4 \n" /* r2r3 <<= 16 */
"xtrct r2,r4 \n"
"mov r4,r2 \n"
"mulu r5,r7 \n" /* d * h */
"mov r3,r1 \n" /* r2r3 <<= 16 */
"xtrct r2,r1 \n"
"mov r1,r2 \n"
"shll16 r3 \n"
"sts macl,r1 \n" /* r1 = d * h */
"clrt \n" /* r0r1 += r2r3 */
"addc r3,r1 \n"
"rts \n"