C64: fix duty overflow

just in case
2024-04-24 13:01:02 -05:00 · 2024-04-24 13:01:02 -05:00 · 9ba123953e
parent fd60d5c2c2
commit 9ba123953e
1 changed files with 1 additions and 0 deletions
--- a/src/engine/platform/c64.cpp
+++ b/src/engine/platform/c64.cpp
@ -182,6 +182,7 @@ void DivPlatformC64::tick(bool sysTick) {
          chan[i].duty-=chan[i].std.duty.val;
        }
      }
+      chan[i].duty&=4095;
      rWrite(i*7+2,chan[i].duty&0xff);
      rWrite(i*7+3,chan[i].duty>>8);
    }