Files
kaizen/src/n64/core/Mem.hpp
2022-10-03 22:25:44 +02:00

104 lines
2.2 KiB
C++

#pragma once
#include <common.hpp>
#include <n64/memory_regions.hpp>
#include <n64/core/MMIO.hpp>
#include <vector>
#include <util.hpp>
namespace n64 {
struct Registers;
struct CartInfo {
bool isPAL;
u32 cicType;
u32 crc;
};
struct Mem {
~Mem() = default;
Mem();
void Reset();
CartInfo LoadROM(const std::string&);
[[nodiscard]] auto GetRDRAM() -> u8* {
return mmio.rdp.dram.data();
}
template <bool tlb = true>
u8 Read8(Registers&, u64, s64);
template <bool tlb = true>
u16 Read16(Registers&, u64, s64);
template <bool tlb = true>
u32 Read32(Registers&, u64, s64);
template <bool tlb = true>
u64 Read64(Registers&, u64, s64);
template <bool tlb = true>
void Write8(Registers&, u64, u32, s64);
template <bool tlb = true>
void Write16(Registers&, u64, u32, s64);
template <bool tlb = true>
void Write32(Registers&, u64, u32, s64);
template <bool tlb = true>
void Write64(Registers&, u64, u64, s64);
MMIO mmio;
u8 pifRam[PIF_RAM_SIZE]{};
private:
friend struct SI;
friend struct PI;
friend struct AI;
friend struct Cpu;
friend struct RSP;
friend struct Core;
std::vector<u8> cart, sram;
u8 pifBootrom[PIF_BOOTROM_SIZE]{};
u8 isviewer[ISVIEWER_SIZE]{};
size_t romMask;
void SetCICType(u32& cicType, u32 checksum) {
switch(checksum) {
case 0xEC8B1325: // 7102
cicType = CIC_NUS_7102;
break;
case 0x1DEB51A9: // 6101
cicType = CIC_NUS_6101;
break;
case 0xC08E5BD6:
cicType = CIC_NUS_6102_7101;
break;
case 0x03B8376A:
cicType = CIC_NUS_6103_7103;
break;
case 0xCF7F41DC:
cicType = CIC_NUS_6105_7105;
break;
case 0xD1059C6A:
cicType = CIC_NUS_6106_7106;
break;
default:
util::warn("Could not determine CIC TYPE! Checksum: {:08X} is unknown!\n", checksum);
cicType = UNKNOWN_CIC_TYPE;
break;
}
}
bool IsROMPAL() {
static const char pal_codes[] = {'D', 'F', 'I', 'P', 'S', 'U', 'X', 'Y'};
for (int i = 0; i < 8; i++) {
if (cart[0x3e] == pal_codes[i]) {
return true;
}
}
return false;
}
};
template <bool tlb = true>
bool MapVAddr(Registers& regs, TLBAccessType accessType, u64 vaddr, u32& paddr);
}