Merge pull request #7 from mywave82/even-data-express

Ensure that writes to GPIO extended writes both bank A and B (needed for OPL3 Express)
SudoMaker · Jul 6, 2023 · 6480947 · 6480947
2 parents 1b0995b + aed3c7f
commit 6480947
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/RetroWaveLib/Board/OPL3.c b/RetroWaveLib/Board/OPL3.c
@@ -82,7 +82,7 @@ void retrowave_opl3_emit_port1(RetroWaveContext *ctx, uint8_t reg, uint8_t val)
 }
 
 void retrowave_opl3_reset(RetroWaveContext *ctx) {
- uint8_t buf[] = {RetroWave_Board_OPL3, 0x12, 0xfe};
+ uint8_t buf[] = {RetroWave_Board_OPL3, 0x12, 0xfe, 0x00};
  ctx->callback_io(ctx->user_data, transfer_speed / 10, buf, NULL, sizeof(buf));
  buf[2] = 0xff;
  ctx->callback_io(ctx->user_data, transfer_speed / 10, buf, NULL, sizeof(buf));
@@ -93,4 +93,4 @@ void retrowave_opl3_mute(RetroWaveContext *ctx) {
  retrowave_opl3_emit_port0(ctx, i, i >= 0x40 && i <= 0x55 ? 0xFF : 0x00);
  retrowave_opl3_emit_port1(ctx, i, i >= 0x40 && i <= 0x55 ? 0xFF : 0x00);
  }
-}
+}
diff --git a/RetroWaveLib/RetroWave.c b/RetroWaveLib/RetroWave.c
@@ -61,7 +61,8 @@ void retrowave_io_init(RetroWaveContext *ctx) {
  uint8_t init_sequence_1[] = {
  0x00,
  0x0a, // IOCON register
- 0x28 // Enable: HAEN, SEQOP
+ 0x28, // Enable: HAEN, SEQOP
+ 0x28
  };
 
  uint8_t init_sequence_2[] = {