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  • Committer: Package Import Robot
  • Author(s): Joe Nahmias
  • Date: 2014-03-02 19:22:04 UTC
  • mfrom: (1.1.1)
  • Revision ID: package-import@ubuntu.com-20140302192204-9f0aehi5stfnhn7d
Tags: 2.2.2+dfsg0-1
* Imported Upstream version 2.2.2
  + remove patches merged upstream; refresh remaining
  + remove windows compiled help files and non-free Visual C files
* Use C++11 standard static assertion functionality
* fix upstream installation of support files
* New patch 0004-ignore-missing-windows-help-CHM-file.patch
* update d/copyright for new, renamed, deleted files
* d/control: bump std-ver to 3.9.5, no changes needed

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src/boards/09-034a.cpp
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 *
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 * FDS Conversions
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 *
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 * Super Mario Bros 2 J alt version is a BAD incomplete dump, should be mapper 43
 
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 * Super Mario Bros 2j (Alt Full) is a BAD incomplete dump, should be mapper 43
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 *
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 * Both Voleyball and Zanac by Whirlind Manu shares the same PCB, but with
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 * some differences: Voleyball has 8K CHR ROM and 8K ROM at 6000K, Zanac
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 * have 8K CHR RAM and banked 16K ROM mapper at 6000 as two 8K banks.
 
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*
 
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 * Super Mario Bros 2j (Alt Small) uses additionally IRQ timer to drive framerate
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 *
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 * PCB for this mapper is "09-034A"
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 */
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#include "mapinc.h"
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static uint8 prg;
 
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static uint32 IRQCount, IRQa;
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static SFORMAT StateRegs[] =
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{
 
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        { &IRQCount, 4, "IRQC" },
 
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        { &IRQa, 4, "IRQA" },
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        { &prg, 1, "PRG" },
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        { 0 }
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};
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        setchr8(0);
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}
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static DECLFW(UNLSMB2JWrite) {
 
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static DECLFW(UNLSMB2JWrite1) {
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        prg = V & 1;
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        Sync();
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}
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static DECLFW(UNLSMB2JWrite2) {
 
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        IRQa = V & 1;
 
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        IRQCount = 0;
 
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        X6502_IRQEnd(FCEU_IQEXT);
 
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}
 
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static DECLFR(UNLSMB2JRead) {
 
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        return 0xFF;
 
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}
 
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static void UNLSMB2JPower(void) {
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        prg = 0;
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        Sync();
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        SetReadHandler(0x6000, 0xFFFF, CartBR);
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        SetWriteHandler(0x4027, 0x4027, UNLSMB2JWrite);
 
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        SetReadHandler(0x4042, 0x4055, UNLSMB2JRead);
 
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        SetWriteHandler(0x4068, 0x4068, UNLSMB2JWrite2);
 
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        SetWriteHandler(0x4027, 0x4027, UNLSMB2JWrite1);
 
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}
 
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static void UNLSMB2JIRQHook(int a) {
 
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        if (IRQa)
 
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        {
 
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                if (IRQCount < 5750)    // completely by guess
 
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                        IRQCount += a;
 
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                else {
 
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                        IRQa = 0;
 
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                        X6502_IRQBegin(FCEU_IQEXT);
 
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                }
 
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        }
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}
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static void StateRestore(int version) {
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void UNLSMB2J_Init(CartInfo *info) {
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        info->Power = UNLSMB2JPower;
 
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        MapIRQHook = UNLSMB2JIRQHook;
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        GameStateRestore = StateRestore;
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        AddExState(&StateRegs, ~0, 0, 0);
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}