From d8ff94121fd855d86a10a4bb98ad426a3e119c20 Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Sun, 15 Feb 2009 23:13:26 +0000 Subject: Get rid of a useless copy instruction in the SH1 32*32->64bit multiply routines (signed and unsigned). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20013 a1c6a512-1295-4272-9138-f99709370657 --- apps/recorder/resize.h | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'apps/recorder/resize.h') diff --git a/apps/recorder/resize.h b/apps/recorder/resize.h index d1dabaae09..4ea4eaa9a0 100644 --- a/apps/recorder/resize.h +++ b/apps/recorder/resize.h @@ -78,14 +78,13 @@ static inline unsigned sc_mul32(unsigned a, unsigned b) "addc %[t2], %[t3] \n" /* t3 += t2, carry -> t2 */ "movt %[t2] \n" "mulu %[a], %[b] \n" /* b * d */ - "mov %[t3], %[t1] \n" /* t2t3 <<= 16 */ + "mov %[t3], %[t1] \n" /* t1t3 = t2t3 << 16 */ "xtrct %[t2], %[t1] \n" - "mov %[t1], %[t2] \n" "shll16 %[t3] \n" - "sts macl, %[t1] \n" /* lo = b * d */ - "clrt \n" /* hi.lo += t2t3 */ - "addc %[t3], %[t1] \n" - "addc %[t2], %[r] \n" + "sts macl, %[t2] \n" /* lo = b * d */ + "clrt \n" /* hi.lo += t1t3 */ + "addc %[t3], %[t2] \n" + "addc %[t1], %[r] \n" : /* outputs */ [r] "=&r"(r), [t1]"=&r"(t1), -- cgit v1.2.3