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-rw-r--r--src/mame/audio/upd1771.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/audio/upd1771.cpp b/src/mame/audio/upd1771.cpp
index 96b3b2bb062..e826aafee0f 100644
--- a/src/mame/audio/upd1771.cpp
+++ b/src/mame/audio/upd1771.cpp
@@ -187,7 +187,7 @@
waveforms; the first four look as if they're playing back a piece of code as
wave data.
*/
-const char WAVEFORMS[8][32]={
+const signed char WAVEFORMS[8][32]={
{ 0, 0,-123,-123, -61, -23, 125, 107, 94, 83,-128,-128,-128, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,-128,-128,-128, 0, 0, 0, 0, 0, 0},
{ 37, 16, 32, -21, 32, 52, 4, 4, 33, 18, 60, 56, 0, 8, 5, 16, 65, 19, 69, 16, -2, 19, 37, 16, 97, 19, 0, 87, 127, -3, 1, 2},
{ 0, 8, 1, 52, 4, 0, 0, 77, 81,-109, 47, 97, -83,-109, 38, 97, 0, 52, 4, 0, 1, 4, 1, 22, 2, -46, 33, 97, 0, 8, -85, -99},