summaryrefslogtreecommitdiff
path: root/firmware
diff options
context:
space:
mode:
Diffstat (limited to 'firmware')
-rw-r--r--firmware/mpeg.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/firmware/mpeg.c b/firmware/mpeg.c
index 1b9cd82..969652d 100644
--- a/firmware/mpeg.c
+++ b/firmware/mpeg.c
@@ -1795,8 +1795,11 @@ void mpeg_set_pitch(int percent)
{
unsigned long val;
+ /* invert percent value */
+ percent = 10000/percent;
+
/* Calculate the new (bogus) frequency */
- val = 18432 - (18432*percent/100);
+ val = 18432*percent/100;
mas_writemem(MAS_BANK_D0,0x7f3,&val,1);