NES: fix slide up

fixes #208
2022-03-14 00:26:06 -05:00 · 2022-03-14 00:26:06 -05:00 · 5b2ec3ee87
parent 394a440f3d
commit 5b2ec3ee87
1 changed files with 1 additions and 0 deletions
--- a/src/engine/platform/nes.cpp
+++ b/src/engine/platform/nes.cpp
@ -201,6 +201,7 @@ void DivPlatformNES::tick() {
      } else {
        chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true)-1;
        if (chan[i].freq>2047) chan[i].freq=2047;
+        if (chan[i].freq<0) chan[i].freq=0;
      }
      if (chan[i].keyOn) {
        //rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(ins->gb.soundLen&63)));