Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Changed meaning of shift parameter to include the EMAC implicit shift

Browse source 
factor. ARM version is already fixed.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8520 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thom Johansen 2006-02-01 09:48:47 +00:00
parent b106e010d5
commit 7df51ada07
2 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
apps/eq.h
View file

@ -23,8 +23,8 @@
/* These depend on the fixed point formats used by the different filter types
and need to be changed when they change.
*/
#define EQ_PEAK_SHIFT 3
#define EQ_SHELF_SHIFT 7
#define EQ_PEAK_SHIFT 4
#define EQ_SHELF_SHIFT 8
struct eqfilter {
long coefs[5]; /* Order is b0, b1, b2, a1, a2 */

1
apps/eq_cf.S
View file

@ -24,6 +24,7 @@ eq_filter:
movem.l %d2-%d7/%a2-%a6, (%sp) | save clobbered regs
move.l (11*4+8, %sp), %a5 | fetch filter structure address
movem.l (11*4+16, %sp), %d6-%d7 | load num. channels and shift count
subq.l #1, %d7 | EMAC gives us one free shift
movem.l (%a5), %a0-%a4 | load coefs
lea.l (5*4, %a5), %a5 | point to filter history