OPN/2/A/B: fix ExtCh instrument

issue #1053
2023-08-11 16:14:06 -05:00 · 2023-08-11 16:14:06 -05:00 · 6324a2a952
commit 6324a2a952
parent a917c2f532
10 changed files with 45 additions and 0 deletions
--- a/src/engine/platform/ym2610.cpp
+++ b/src/engine/platform/ym2610.cpp
@ -1125,6 +1125,7 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
    }
    case DIV_CMD_FM_EXTCH: {
      if (extSys) {
+        if (extMode==(bool)c.value) break;
        extMode=c.value;
        immWrite(0x27,extMode?0x40:0);
      }