1 files changed, 105 insertions, 0 deletions
diff --git a/apps/plugins/infones/mapper/InfoNES_Mapper_229.c b/apps/plugins/infones/mapper/InfoNES_Mapper_229.c
new file mode 100644
index 0000000..bfe1ec0
--- /dev/null
+++ b/apps/plugins/infones/mapper/InfoNES_Mapper_229.c
@@ -0,0 +1,105 @@
+/*===================================================================*/
+/*                                                                   */
+/*                     Mapper 229 : 31-in-1                          */
+/*                                                                   */
+/*===================================================================*/
+
+/*-------------------------------------------------------------------*/
+/*  Initialize Mapper 229                                            */
+/*-------------------------------------------------------------------*/
+void Map229_Init()
+{
+  /* Initialize Mapper */
+  MapperInit = Map229_Init;
+
+  /* Write to Mapper */
+  MapperWrite = Map229_Write;
+
+  /* Write to SRAM */
+  MapperSram = Map0_Sram;
+
+  /* Write to APU */
+  MapperApu = Map0_Apu;
+
+  /* Read from APU */
+  MapperReadApu = Map0_ReadApu;
+
+  /* Callback at VSync */
+  MapperVSync = Map0_VSync;
+
+  /* Callback at HSync */
+  MapperHSync = Map0_HSync;
+
+  /* Callback at PPU */
+  MapperPPU = Map0_PPU;
+
+  /* Callback at Rendering Screen ( 1:BG, 0:Sprite ) */
+  MapperRenderScreen = Map0_RenderScreen;
+
+  /* Set SRAM Banks */
+  SRAMBANK = SRAM;
+
+  /* Set ROM Banks */
+  ROMBANK0 = ROMPAGE( 0 );
+  ROMBANK1 = ROMPAGE( 1 );
+  ROMBANK2 = ROMPAGE( 2 );
+  ROMBANK3 = ROMPAGE( 3 );
+
+  /* Set PPU Banks */
+  if ( NesHeader.byVRomSize > 0 ) {
+    for ( int nPage = 0; nPage < 8; ++nPage )
+      PPUBANK[ nPage ] = VROMPAGE( nPage );
+    InfoNES_SetupChr();
+  }
+
+  /* Set up wiring of the interrupt pin */
+  K6502_Set_Int_Wiring( 1, 1 ); 
+}
+
+/*-------------------------------------------------------------------*/
+/*  Mapper 229 Write Function                                        */
+/*-------------------------------------------------------------------*/
+void Map229_Write( WORD wAddr, BYTE byData )
+{
+  if( wAddr & 0x001E ) {
+    BYTE byPrg = wAddr&0x001F;
+
+    ROMBANK0 = ROMPAGE(((byPrg<<1)+0) % (NesHeader.byRomSize<<1));
+    ROMBANK1 = ROMPAGE(((byPrg<<1)+1) % (NesHeader.byRomSize<<1));
+    ROMBANK2 = ROMPAGE(((byPrg<<1)+0) % (NesHeader.byRomSize<<1));
+    ROMBANK3 = ROMPAGE(((byPrg<<1)+1) % (NesHeader.byRomSize<<1));
+
+    BYTE byChr = wAddr & 0x0FFF;
+
+    PPUBANK[ 0 ] = VROMPAGE(((byChr<<3) + 0) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 1 ] = VROMPAGE(((byChr<<3) + 1) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 2 ] = VROMPAGE(((byChr<<3) + 2) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 3 ] = VROMPAGE(((byChr<<3) + 3) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 4 ] = VROMPAGE(((byChr<<3) + 4) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 5 ] = VROMPAGE(((byChr<<3) + 5) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 6 ] = VROMPAGE(((byChr<<3) + 6) % (NesHeader.byVRomSize<<3));
+    PPUBANK[ 7 ] = VROMPAGE(((byChr<<3) + 7) % (NesHeader.byVRomSize<<3));
+    InfoNES_SetupChr();
+  } else {
+    ROMBANK0 = ROMPAGE( 0 );
+    ROMBANK1 = ROMPAGE( 1 );
+    ROMBANK2 = ROMPAGE( 2 );
+    ROMBANK3 = ROMPAGE( 3 );
+
+    PPUBANK[ 0 ] = VROMPAGE( 0 );
+    PPUBANK[ 1 ] = VROMPAGE( 1 );
+    PPUBANK[ 2 ] = VROMPAGE( 2 );
+    PPUBANK[ 3 ] = VROMPAGE( 3 );
+    PPUBANK[ 4 ] = VROMPAGE( 4 );
+    PPUBANK[ 5 ] = VROMPAGE( 5 );
+    PPUBANK[ 6 ] = VROMPAGE( 6 );
+    PPUBANK[ 7 ] = VROMPAGE( 7 );
+    InfoNES_SetupChr();
+  }
+
+  if( wAddr & 0x0020 ) {
+    InfoNES_Mirroring( 0 );
+  } else {
+    InfoNES_Mirroring( 1 );
+  }
+}