From a2a9bfde3c218c68dc933d95bc7f0b88f0247c68 Mon Sep 17 00:00:00 2001
From: adelikat <adelikat@tasvideos.org>
Date: Sat, 16 Jun 2012 23:34:42 +0000
Subject: [PATCH] NES - implement mapper 92

---
 BizHawk.Emulation/BizHawk.Emulation.csproj    |   1 +
 .../Nintendo/NES/Boards/JALECO_JF_19.cs       | 110 ++++++++++++++++++
 2 files changed, 111 insertions(+)
 create mode 100644 BizHawk.Emulation/Consoles/Nintendo/NES/Boards/JALECO_JF_19.cs

diff --git a/BizHawk.Emulation/BizHawk.Emulation.csproj b/BizHawk.Emulation/BizHawk.Emulation.csproj
index a214b19552..0b798c26f9 100644
--- a/BizHawk.Emulation/BizHawk.Emulation.csproj
+++ b/BizHawk.Emulation/BizHawk.Emulation.csproj
@@ -143,6 +143,7 @@
     <Compile Include="Consoles\Nintendo\NES\Boards\JALECO_JF_05_06_07.cs" />
     <Compile Include="Consoles\Nintendo\NES\Boards\JALECO_JF_13.cs" />
     <Compile Include="Consoles\Nintendo\NES\Boards\JALECO_JF_17.cs" />
+    <Compile Include="Consoles\Nintendo\NES\Boards\JALECO_JF_19.cs" />
     <Compile Include="Consoles\Nintendo\NES\Boards\Mapper069.cs" />
     <Compile Include="Consoles\Nintendo\NES\Boards\Mapper107.cs" />
     <Compile Include="Consoles\Nintendo\NES\Boards\Mapper164.cs" />
diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/JALECO_JF_19.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/JALECO_JF_19.cs
new file mode 100644
index 0000000000..38c3c6b36c
--- /dev/null
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/JALECO_JF_19.cs
@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BizHawk.Emulation.Consoles.Nintendo
+{
+	//iNES Mapper 92
+	//Example Games:
+	//Example Games:
+	//--------------------------
+	//Moero!! Pro Soccer
+	//Moero!! Pro Yakyuu '88 - Ketteiban
+
+	//Near Identical to Jaleco JF 17, except for a slight PRG setup
+
+	class JALECO_JF_19 : NES.NESBoardBase
+	{
+		//configuration
+		int prg_bank_mask_16k;
+		int chr_bank_mask_8k;
+
+		//state
+		int latch;
+		ByteBuffer prg_banks_16k = new ByteBuffer(2);
+		ByteBuffer chr_banks_8k = new ByteBuffer(1);
+
+		public override bool Configure(NES.EDetectionOrigin origin)
+		{
+			switch (Cart.board_type)
+			{
+				case "MAPPER092":
+					break;
+				case "JALECO-JF-19":
+					break;
+				default:
+					return false;
+			}
+
+			prg_bank_mask_16k = (Cart.prg_size / 16) - 1;
+			chr_bank_mask_8k = (Cart.chr_size / 8) - 1;
+
+			SetMirrorType(Cart.pad_h, Cart.pad_v);
+
+			prg_banks_16k[0] = 0;
+			chr_banks_8k[0] = 0;
+			SyncMap();
+
+			return true;
+		}
+
+		void SyncMap()
+		{
+			ApplyMemoryMapMask(prg_bank_mask_16k, prg_banks_16k);
+			ApplyMemoryMapMask(chr_bank_mask_8k, chr_banks_8k);
+		}
+
+		public override void Dispose()
+		{
+			prg_banks_16k.Dispose();
+			base.Dispose();
+		}
+
+		public override void SyncState(Serializer ser)
+		{
+			base.SyncState(ser);
+			ser.Sync("latch", ref latch);
+			ser.Sync("prg_banks_16k", ref prg_banks_16k);
+			ser.Sync("chr_banks_8k", ref chr_banks_8k);
+		}
+
+		public override void WritePRG(int addr, byte value)
+		{
+			//Console.WriteLine("MAP {0:X4} = {1:X2}", addr, value);
+
+			value = HandleNormalPRGConflict(addr, value);
+
+			int command = value >> 6;
+			switch (command)
+			{
+				case 0:
+					if (latch == 1)
+						chr_banks_8k[0] = (byte)(value & 0xF);
+					else if (latch == 2)
+						prg_banks_16k[1] = (byte)(value & 0xF);
+					SyncMap();
+					break;
+				default:
+					latch = command;
+					break;
+			}
+		}
+
+		public override byte ReadPRG(int addr)
+		{
+			addr = ApplyMemoryMap(14, prg_banks_16k, addr);
+			return ROM[addr];
+		}
+
+		public override byte ReadPPU(int addr)
+		{
+			if (addr < 0x2000)
+			{
+				addr = ApplyMemoryMap(13, chr_banks_8k, addr);
+				return base.ReadPPUChr(addr);
+			}
+			else return base.ReadPPU(addr);
+		}
+	}
+}