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Tigervision paging returns.

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This commit is contained in:
Thomas Harte 2017-03-18 18:50:13 -04:00
parent df6861c9dc
commit 0b611a14b9
3 changed files with 46 additions and 0 deletions
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4
Machines/Atari2600/Atari2600.cpp
View File

@ -16,6 +16,7 @@
#include "CartridgeActivisionStack.hpp"
#include "CartridgeCommaVid.hpp"
#include "CartridgeParkerBros.hpp"
#include "CartridgeTigervision.hpp"
#include "CartridgeUnpaged.hpp"
using namespace Atari2600;
@ -109,6 +110,9 @@ void Machine::configure_as_target(const StaticAnalyser::Target &target) {
case StaticAnalyser::Atari2600PagingModel::ParkerBros:
bus_.reset(new CartridgeParkerBros(rom));
break;
case StaticAnalyser::Atari2600PagingModel::Tigervision:
bus_.reset(new CartridgeTigervision(rom));
break;
}
/* switch(target.atari.paging_model) {

40
Machines/Atari2600/CartridgeTigervision.hpp Normal file
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@ -0,0 +1,40 @@
//
// CartridgeTigervision.h
// Clock Signal
//
// Created by Thomas Harte on 18/03/2017.
// Copyright © 2017 Thomas Harte. All rights reserved.
//
#ifndef Atari2600_CartridgeTigervision_hpp
#define Atari2600_CartridgeTigervision_hpp
#include "Cartridge.hpp"
namespace Atari2600 {
class CartridgeTigervision: public Cartridge<CartridgeTigervision> {
public:
CartridgeTigervision(const std::vector<uint8_t> &rom) :
Cartridge(rom) {
rom_ptr_[0] = rom_.data() + rom_.size() - 4096;
rom_ptr_[1] = rom_ptr_[0] + 2048;
}
void perform_bus_operation(CPU6502::BusOperation operation, uint16_t address, uint8_t *value) {
if((address&0x1fff) == 0x3f) {
int offset = ((*value) * 2048) & (rom_.size() - 1);
rom_ptr_[0] = rom_.data() + offset;
return;
} else if((address&0x1000) && isReadOperation(operation)) {
*value = rom_ptr_[(address >> 11)&1][address & 2047];
}
}
private:
uint8_t *rom_ptr_[2];
};
}
#endif /* Atari2600_CartridgeTigervision_hpp */

2
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
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@ -948,6 +948,7 @@
4BEAC0791E7DD86E00EE56B2 /* CartridgeAtari32k.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = CartridgeAtari32k.hpp; sourceTree = "<group>"; };
4BEAC07A1E7DDFDA00EE56B2 /* CartridgeActivisionStack.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = CartridgeActivisionStack.hpp; sourceTree = "<group>"; };
4BEAC07B1E7DE74200EE56B2 /* CartridgeParkerBros.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = CartridgeParkerBros.hpp; sourceTree = "<group>"; };
4BEAC07C1E7DEA6B00EE56B2 /* CartridgeTigervision.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = CartridgeTigervision.hpp; sourceTree = "<group>"; };
4BEE0A6A1D72496600532C7B /* Cartridge.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Cartridge.cpp; sourceTree = "<group>"; };
4BEE0A6B1D72496600532C7B /* Cartridge.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = Cartridge.hpp; sourceTree = "<group>"; };
4BEE0A6D1D72496600532C7B /* PRG.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = PRG.cpp; sourceTree = "<group>"; };
@ -1126,6 +1127,7 @@
4BEA52671DF34909007E74F2 /* PIA.hpp */,
4BEA52651DF3472B007E74F2 /* Speaker.hpp */,
4BE7C9171E3D397100A5496D /* TIA.hpp */,
4BEAC07C1E7DEA6B00EE56B2 /* CartridgeTigervision.hpp */,
);
path = Atari2600;
sourceTree = "<group>";