diff options
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/pcm_playback.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/firmware/pcm_playback.c b/firmware/pcm_playback.c index a48002ce00..11cd4cc2ba 100644 --- a/firmware/pcm_playback.c +++ b/firmware/pcm_playback.c | |||
| @@ -524,11 +524,12 @@ void fiq(void) | |||
| 524 | "cmp r12, #0x10000 \n\t" | 524 | "cmp r12, #0x10000 \n\t" |
| 525 | "bls .fifo_full \n\t" /* FIFO full, exit */ | 525 | "bls .fifo_full \n\t" /* FIFO full, exit */ |
| 526 | "ldr r12, [r9], #4 \n\t" /* load two samples to r12 */ | 526 | "ldr r12, [r9], #4 \n\t" /* load two samples to r12 */ |
| 527 | "mov r12, r12, ror #16\n\t" /* put left sample at the top bits */ | ||
| 527 | "str r12, [r10] \n\t" /* write top sample, lower sample ignored */ | 528 | "str r12, [r10] \n\t" /* write top sample, lower sample ignored */ |
| 528 | "mov r12, r12, lsl #16\n\t" /* shift lower sample up */ | 529 | "mov r12, r12, lsl #16\n\t" /* shift lower sample up */ |
| 529 | "str r12, [r10] \n\t" /* then write it */ | 530 | "str r12, [r10] \n\t" /* then write it */ |
| 530 | "subs r8, r8, #4 \n\t" /* check if we have more samples */ | 531 | "subs r8, r8, #4 \n\t" /* check if we have more samples */ |
| 531 | "bne .loop \n\t" /* yes, continue */ | 532 | "bne .fifo_loop \n\t" /* yes, continue */ |
| 532 | ".more_data: \n\t" | 533 | ".more_data: \n\t" |
| 533 | "stmdb sp!, { r0-r3, lr}\n\t" /* stack scratch regs and lr */ | 534 | "stmdb sp!, { r0-r3, lr}\n\t" /* stack scratch regs and lr */ |
| 534 | "ldr r0, =p \n\t" /* load parameters to callback_for_more */ | 535 | "ldr r0, =p \n\t" /* load parameters to callback_for_more */ |