mirror of
https://github.com/TomHarte/CLK.git
synced 2024-10-15 04:24:26 +00:00
3db2de7478
... revealing that I've leant a little too hard on __LINE__.
50 lines
1014 B
C++
50 lines
1014 B
C++
//
|
||
// 68000Mk2Storage.hpp
|
||
// Clock Signal
|
||
//
|
||
// Created by Thomas Harte on 16/05/2022.
|
||
// Copyright © 2022 Thomas Harte. All rights reserved.
|
||
//
|
||
|
||
#ifndef _8000Mk2Storage_h
|
||
#define _8000Mk2Storage_h
|
||
|
||
#include "../../../InstructionSets/M68k/Status.hpp"
|
||
#include "../../../InstructionSets/M68k/Decoder.hpp"
|
||
|
||
namespace CPU {
|
||
namespace MC68000Mk2 {
|
||
|
||
struct ProcessorBase {
|
||
enum State: int {
|
||
Reset = -1,
|
||
Dispatch = -2,
|
||
WaitForDTACK = -3,
|
||
};
|
||
int state_ = State::Reset;
|
||
|
||
HalfCycles time_remaining_;
|
||
int post_dtack_state_ = 0;
|
||
int is_supervisor_ = 1;
|
||
|
||
InstructionSet::M68k::Predecoder<InstructionSet::M68k::Model::M68000> decoder_;
|
||
InstructionSet::M68k::Preinstruction instruction_;
|
||
uint16_t opcode_;
|
||
|
||
InstructionSet::M68k::Status status_;
|
||
SlicedInt32 program_counter_;
|
||
SlicedInt32 registers_[16]; // D0–D7 followed by A0–A7.
|
||
SlicedInt32 stack_pointers_[2];
|
||
|
||
bool dtack_ = false;
|
||
bool vpa_ = false;
|
||
bool berr_ = false;
|
||
|
||
SlicedInt16 prefetch_[2];
|
||
};
|
||
|
||
}
|
||
}
|
||
|
||
#endif /* _8000Mk2Storage_h */
|