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CLK/Processors/6502/6502AllRAM.hpp

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Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
//
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-15 02:08:15 +00:00
// 6502AllRAM.hpp
Switched to idiomatic source name, ensured latest project name is in all appropriate header places, threw texture coordinates slightly into the shader mix.
2015-07-26 19:25:11 +00:00
// CLK
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
//
// Created by Thomas Harte on 13/07/2015.
// Copyright © 2015 Thomas Harte. All rights reserved.
//
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-15 02:08:15 +00:00
#ifndef MOS6502AllRAM_cpp
#define MOS6502AllRAM_cpp
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-15 02:08:15 +00:00
#include "6502.hpp"
Factored out the stuff that both all-RAM processors would share, rather than duplicating it.
2017-05-17 01:28:17 +00:00
#include "../AllRAMProcessor.hpp"
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-15 02:08:15 +00:00
namespace CPU {
namespace MOS6502 {
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
Factored out the stuff that both all-RAM processors would share, rather than duplicating it.
2017-05-17 01:28:17 +00:00
class AllRAMProcessor:
Attempted to bring a common hierarchy to the Z80 and 6502 test machines, particularly with a view to eliminating the special-case Jam stuff on the 6502.
2017-06-04 01:22:16 +00:00
public ::CPU::AllRAMProcessor {
Factored out the stuff that both all-RAM processors would share, rather than duplicating it.
2017-05-17 01:28:17 +00:00
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
public:
Attempted to bring a common hierarchy to the Z80 and 6502 test machines, particularly with a view to eliminating the special-case Jam stuff on the 6502.
2017-06-04 01:22:16 +00:00
static AllRAMProcessor *Processor();
Eliminates the 6502's specialised jam handler in favour of the generic trap handler, and simplifies the lookup costs of that as it's otherwise doubling execution costs.
2017-06-04 01:54:42 +00:00
virtual ~AllRAMProcessor() {}
Attempted to bring a common hierarchy to the Z80 and 6502 test machines, particularly with a view to eliminating the special-case Jam stuff on the 6502.
2017-06-04 01:22:16 +00:00
Standardises on `const [Half]Cycles` as the thing called and returned, rather than `const [Half]Cycles &` as it's explicitly defined to be only one `int` in size, so using a reference is overly weighty.
2017-07-28 02:05:29 +00:00
virtual void run_for(const Cycles cycles) = 0;
Attempted to bring a common hierarchy to the Z80 and 6502 test machines, particularly with a view to eliminating the special-case Jam stuff on the 6502.
2017-06-04 01:22:16 +00:00
virtual bool is_jammed() = 0;
virtual void set_irq_line(bool value) = 0;
virtual void set_nmi_line(bool value) = 0;
virtual uint16_t get_value_of_register(Register r) = 0;
virtual void set_value_of_register(Register r, uint16_t value) = 0;
protected:
AllRAMProcessor() : ::CPU::AllRAMProcessor(65536) {}
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
};
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-15 02:08:15 +00:00
}
Imported what little I have so far in the way of a memory-access cycle complete 6502 and just enough of a pretend Atari 2600 on top to be able to see some playfields in ASCII art.
2015-07-16 23:56:02 +00:00
}
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-15 02:08:15 +00:00
#endif /* MOS6502AllRAM_cpp */
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