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CLK/Processors/6502/AllRAM/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.
Removes all instances of the copyright symbol.
2018-05-13 19:19:52 +00:00
// Copyright 2015 Thomas Harte. All rights reserved.
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
#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
Makes an effort to factor out the 6502's [lazy] flags. This is preparatory to deciding which instructions, if any, are worth factoring out.
2020-10-06 02:23:33 +00:00
#include "../../6502Esque/6502Selector.hpp"
Tidies the 6502 template and folder hierarchy. Specifically: there's now just the one .h file at the top level, giving a clear indication of what a user should read. That separates implementation from interface. It also devolves a lot more to the base class because doing so makes debug builds less of a hassle. The all-RAM 6502 has been shuffled off into a subfolder, to indicate that it's not something you necessarily need know about. Also general documentation improvements have been applied: incorrect citing of the recurring-template pattern has been removed and the meaning of the two BusHandler methods has now accrued at the bus handler.
2017-09-01 02:10:27 +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
Simplify namespace syntax.
2023-05-10 21:02:18 +00:00
namespace CPU::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 {
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:
I'm not yet sure this is the best approach, but starts trying to make use of Lorenz's 6526 tests.
2021-07-31 01:21:16 +00:00
static AllRAMProcessor *Processor(CPU::MOS6502Esque::Type type, bool has_cias = false);
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;
Takes a swing at incorporating krom's 65816 test suite. At least as far as ADC.
2020-11-03 02:09:32 +00:00
virtual void run_for_instructions(int) = 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;
Eliminate type-in-function-name from 6502-world.
2023-05-10 23:53:38 +00:00
virtual uint16_t value_of(Register r) = 0;
virtual void set_value_of(Register r, uint16_t value) = 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
protected:
Ups the 65816 test machine to a full 16mb RAM.
2020-10-12 01:18:01 +00:00
AllRAMProcessor(size_t memory_size) : ::CPU::AllRAMProcessor(memory_size) {}
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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