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Coldfire DSP Assembly: Fix a bug in the resampler that would only affect one frame on the transition from up to down. Fix a bug in sample output that could be the cause of reported FLAC glitching. Output routines now pass all alignment and size combination tests.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12733 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2007-03-12 08:36:42 +00:00
parent 1b05ea8ffe
commit a26917e207
1 changed files with 5 additions and 5 deletions
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10
apps/dsp_cf.S
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@ -170,7 +170,7 @@ dsp_upsample:
clr.w %d5 |
eor.l %d5, %d6 | pos == 0?
beq.b .usstart_0 | no? transistion from down
cmp.l %d3, %d6 | past end of samples?
cmp.l %d2, %d6 | past end of samples?
bge.b .usloop_skip | yes? skip loop
lea.l -4(%a3, %d6.l*4), %a3 | %a3 = s = &s[pos-1] (previous)
move.l (%a3)+, %d0 | %d0 = *s++
@ -347,8 +347,8 @@ sample_output_stereo:
moveq.l #28, %d0 | %d0 = second line bound
add.l %a4, %d0 |
and.l #0xfffffff0, %d0 |
cmp.l %a4, %d0 | at least a full line?
blo.w .sos_longloop_1_start | no? jump to trailing longword
cmp.l %a0, %d0 | at least a full line?
bhi.w .sos_longloop_1_start | no? jump to trailing longword
sub.l #16, %d0 | %d1 = first line bound
cmp.l %a4, %d0 | any leading longwords?
bls.b .sos_lineloop_start | no? jump to line loop
@ -441,8 +441,8 @@ sample_output_mono:
moveq.l #28, %d0 | %d0 = second line bound
add.l %a3, %d0 |
and.l #0xfffffff0, %d0 |
cmp.l %a3, %d0 | at least a full line?
blo.w .som_longloop_1_start | no? jump to trailing longword
cmp.l %a0, %d0 | at least a full line?
bhi.w .som_longloop_1_start | no? jump to trailing longword
sub.l #16, %d0 | %d1 = first line bound
cmp.l %a3, %d0 | any leading longwords?
bls.b .som_lineloop_start | no? jump to line loop