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Factored out the Atari 2600's 6532 connection, as a low-hanging fruit.

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This commit is contained in:
Thomas Harte 2016-12-03 13:41:55 -05:00
parent 3361d6b93a
commit b81c058c0a
3 changed files with 43 additions and 23 deletions
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24
Machines/Atari2600/Atari2600.hpp
View File

@ -12,8 +12,8 @@
#include <stdint.h>
#include "../../Processors/6502/CPU6502.hpp"
#include "../../Components/6532/6532.hpp"
#include "../CRTMachine.hpp"
#include "PIA.hpp"
#include "Speaker.hpp"
#include "../ConfigurationTarget.hpp"
@ -24,28 +24,6 @@ namespace Atari2600 {
const unsigned int number_of_upcoming_events = 6;
const unsigned int number_of_recorded_counters = 7;
class PIA: public MOS::MOS6532<PIA> {
public:
inline uint8_t get_port_input(int port)
{
return port_values_[port];
}
inline void update_port_input(int port, uint8_t mask, bool set)
{
if(set) port_values_[port] &= ~mask; else port_values_[port] |= mask;
set_port_did_change(port);
}
PIA() :
port_values_{0xff, 0xff}
{}
private:
uint8_t port_values_[2];
};
class Machine:
public CPU6502::Processor<Machine>,
public CRTMachine::Machine,

40
Machines/Atari2600/PIA.hpp Normal file
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@ -0,0 +1,40 @@
//
// PIA.h
// Clock Signal
//
// Created by Thomas Harte on 03/12/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#ifndef Atari2600_PIA_h
#define Atari2600_PIA_h
#include "../../Components/6532/6532.hpp"
namespace Atari2600 {
class PIA: public MOS::MOS6532<PIA> {
public:
inline uint8_t get_port_input(int port)
{
return port_values_[port];
}
inline void update_port_input(int port, uint8_t mask, bool set)
{
if(set) port_values_[port] &= ~mask; else port_values_[port] |= mask;
set_port_did_change(port);
}
PIA() :
port_values_{0xff, 0xff}
{}
private:
uint8_t port_values_[2];
};
}
#endif /* PIA_h */

2
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
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@ -902,6 +902,7 @@
4BEA52621DF339D7007E74F2 /* Speaker.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = Speaker.hpp; path = Electron/Speaker.hpp; sourceTree = "<group>"; };
4BEA52641DF3472B007E74F2 /* Speaker.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Speaker.cpp; sourceTree = "<group>"; };
4BEA52651DF3472B007E74F2 /* Speaker.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = Speaker.hpp; sourceTree = "<group>"; };
4BEA52671DF34909007E74F2 /* PIA.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = PIA.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>"; };
@ -1056,6 +1057,7 @@
4B2E2D991C3A06EC00138695 /* Atari2600Inputs.h */,
4B2E2D981C3A06EC00138695 /* Atari2600.hpp */,
4BEA52651DF3472B007E74F2 /* Speaker.hpp */,
4BEA52671DF34909007E74F2 /* PIA.hpp */,
);
path = Atari2600;
sourceTree = "<group>";