diff options
| author | Dan Halbert <halbert@adafruit.com> | 2019-09-09 22:43:49 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-09-09 22:43:49 -0400 |
| commit | 2b560015c9e0874c4f320ccb039b4e1197437bdb (patch) | |
| tree | 9f8d5c343a827d38ec7a8f68429e7aef1e4ec730 /shared-module | |
| parent | 4282ff42ca543c1a3f00bf69734dca55b22ac217 (diff) | |
| parent | 8768896d6b0ddb35568ad996781a33fd3a0df94f (diff) | |
Merge pull request #2129 from jepler/audiomixer-debugging
audiomixer: Supply constants in a way "-Og" optimization expects
Diffstat (limited to 'shared-module')
| -rw-r--r-- | shared-module/audiomixer/Mixer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/shared-module/audiomixer/Mixer.c b/shared-module/audiomixer/Mixer.c index e0fb4fab8..a52489f85 100644 --- a/shared-module/audiomixer/Mixer.c +++ b/shared-module/audiomixer/Mixer.c @@ -262,8 +262,8 @@ static inline uint32_t mult16signed(uint32_t val, int32_t mul) { } #if (defined (__ARM_ARCH_7EM__) && (__ARM_ARCH_7EM__ == 1)) //Cortex-M4 w/FPU int32_t hi, lo; - int32_t bits = 16; // saturate to 16 bits - int32_t shift = 0; // shift is done automatically + enum { bits = 16 }; // saturate to 16 bits + enum { shift = 0 }; // shift is done automatically asm volatile("smulwb %0, %1, %2" : "=r" (lo) : "r" (mul), "r" (val)); asm volatile("smulwt %0, %1, %2" : "=r" (hi) : "r" (mul), "r" (val)); asm volatile("ssat %0, %1, %2, asr %3" : "=r" (lo) : "I" (bits), "r" (lo), "I" (shift)); |