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| author | Michael Giacomelli <giac2000@hotmail.com> | 2010-12-16 19:45:59 +0000 |
|---|---|---|
| committer | Michael Giacomelli <giac2000@hotmail.com> | 2010-12-16 19:45:59 +0000 |
| commit | 77d9b040fc0294ade60a7fbadc6b135f342e4a43 (patch) | |
| tree | ba6c7327d9adc416830b691f53455e8e83bf0a02 | |
| parent | fa4977180944b63f42024dc5577a75d55f00c5ac (diff) | |
| download | rockbox-77d9b040fc0294ade60a7fbadc6b135f342e4a43.tar.gz rockbox-77d9b040fc0294ade60a7fbadc6b135f342e4a43.zip | |
Avoid an obvious stall on everything newer then arm7tdmi. Note: this can probably be made a lot faster on newer arm targets.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28842 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | apps/eq_arm.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/apps/eq_arm.S b/apps/eq_arm.S index ca6ceec1db..b0e1771e89 100644 --- a/apps/eq_arm.S +++ b/apps/eq_arm.S | |||
| @@ -64,9 +64,9 @@ eq_filter: | |||
| 64 | mov r1, r0 @ fix input history | 64 | mov r1, r0 @ fix input history |
| 65 | smlal r10, r11, r5, r0 @ acc += b1*x[i - 1] | 65 | smlal r10, r11, r5, r0 @ acc += b1*x[i - 1] |
| 66 | ldr r0, [r9] @ load input and fix history in same operation | 66 | ldr r0, [r9] @ load input and fix history in same operation |
| 67 | smlal r10, r11, r4, r0 @ acc += b0*x[i] | ||
| 68 | smlal r10, r11, r7, r2 @ acc += a1*y[i - 1] | 67 | smlal r10, r11, r7, r2 @ acc += a1*y[i - 1] |
| 69 | smlal r10, r11, r8, r3 @ acc += a2*y[i - 2] | 68 | smlal r10, r11, r8, r3 @ acc += a2*y[i - 2] |
| 69 | smlal r10, r11, r4, r0 @ acc += b0*x[i] /* avoid stall on arm9*/ | ||
| 70 | mov r3, r2 @ fix output history | 70 | mov r3, r2 @ fix output history |
| 71 | mov r2, r11, asl r12 @ get upper part of result and shift left | 71 | mov r2, r11, asl r12 @ get upper part of result and shift left |
| 72 | #ifdef HIGH_PRECISION | 72 | #ifdef HIGH_PRECISION |