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get rid of memory.cc/.hh

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also fix bus' shared pointer in cpu
TODO: put cpu in bus not the other way around

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
This commit is contained in:
Amneesh Singh
2024-06-14 05:37:10 +05:30
parent ffcdf5f3a7
commit 9397140473
16 changed files with 456 additions and 486 deletions
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58
include/memory.hh
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@@ -1,58 +0,0 @@
#pragma once
#include "header.hh"
#include <array>
#include <cstddef>
#include <cstdint>
#include <unordered_map>
#include <vector>
namespace matar {
class Memory {
public:
static constexpr uint32_t BIOS_SIZE = 1024 * 16;
Memory(std::array<uint8_t, BIOS_SIZE>&& bios, std::vector<uint8_t>&& rom);
uint8_t read(uint32_t address) const;
void write(uint32_t address, uint8_t byte);
private:
#define MEMORY_REGION(name, start) \
static constexpr uint32_t name##_START = start;
#define DECL_MEMORY(name, ident, start, end) \
MEMORY_REGION(name, start) \
std::array<uint8_t, end - start + 1> ident;
MEMORY_REGION(BIOS, 0x00000000)
std::array<uint8_t, BIOS_SIZE> bios;
// board working RAM
DECL_MEMORY(BOARD_WRAM, board_wram, 0x02000000, 0x0203FFFF)
// chip working RAM
DECL_MEMORY(CHIP_WRAM, chip_wram, 0x03000000, 0x03007FFF)
// palette RAM
DECL_MEMORY(PALETTE_RAM, palette_ram, 0x05000000, 0x050003FF)
// video RAM
DECL_MEMORY(VRAM, vram, 0x06000000, 0x06017FFF)
// OAM OBJ attributes
DECL_MEMORY(OAM_OBJ_ATTR, oam_obj_attr, 0x07000000, 0x070003FF)
#undef DECL_MEMORY
MEMORY_REGION(ROM_0, 0x08000000)
MEMORY_REGION(ROM_1, 0x0A000000)
MEMORY_REGION(ROM_2, 0x0C000000)
#undef MEMORY_REGION
std::unordered_map<uint32_t, uint8_t> invalid_mem;
std::vector<uint8_t> rom;
Header header;
void parse_header();
};
}