summaryrefslogtreecommitdiff
path: root/apps/codecs/libffmpegFLAC/coldfire.S
diff options
context:
space:
mode:
Diffstat (limited to 'apps/codecs/libffmpegFLAC/coldfire.S')
-rw-r--r--apps/codecs/libffmpegFLAC/coldfire.S25
1 files changed, 11 insertions, 14 deletions
diff --git a/apps/codecs/libffmpegFLAC/coldfire.S b/apps/codecs/libffmpegFLAC/coldfire.S
index 7e19e4b695..720e6edd86 100644
--- a/apps/codecs/libffmpegFLAC/coldfire.S
+++ b/apps/codecs/libffmpegFLAC/coldfire.S
@@ -48,21 +48,18 @@ lpc_decode_emac:
48 moveq.l #8, %d3 48 moveq.l #8, %d3
49 cmp.l %d3, %d2 49 cmp.l %d3, %d2
50 jgt .default | order is over 8, jump to default case 50 jgt .default | order is over 8, jump to default case
51 lea.l .jumptable, %a4 51 jmp.l (2, %pc, %d2.l*4) | jump to loop corresponding to pred_order
52 move.l (%a4, %d2.l*4), %a4
53 jmp (%a4)
54 .align 4 | avoid unaligned fetch
55.jumptable: 52.jumptable:
56 .long .exit 53 bra.w .exit | zero order filter isn't possible, exit function
57 .long .order1 54 bra.w .order1
58 .long .order2 55 bra.w .order2
59 .long .order3 56 bra.w .order3
60 .long .order4 57 bra.w .order4
61 .long .order5 58 bra.w .order5
62 .long .order6 59 bra.w .order6
63 .long .order7 60 bra.w .order7
64 .long .order8
65 61
62| last jump table entry coincides with target, so leave it out
66.order8: 63.order8:
67 movem.l (%a1), %d3-%d7/%a2-%a4 | load lpc coefs 64 movem.l (%a1), %d3-%d7/%a2-%a4 | load lpc coefs
68 move.l (%a0)+, %a5 | load first history sample 65 move.l (%a0)+, %a5 | load first history sample
@@ -78,7 +75,7 @@ lpc_decode_emac:
78 movclr.l %acc0, %d2 | get sum 75 movclr.l %acc0, %d2 | get sum
79 asr.l %d1, %d2 | shift sum by lp_quantization bits 76 asr.l %d1, %d2 | shift sum by lp_quantization bits
80 add.l %d2, (%a0) | add residual and save 77 add.l %d2, (%a0) | add residual and save
81 lea.l (-6*4, %a0), %a0 | history pointer points at second element 78 lea.l (-6*4, %a0), %a0 | point history back at second element
82 subq.l #1, %d0 | decrement counter 79 subq.l #1, %d0 | decrement counter
83 jne .loop8 | are we done? 80 jne .loop8 | are we done?
84 jra .exit 81 jra .exit