77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
#pragma once
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#include "stdafx.h"
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struct GameboyHeader
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{
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//Starts at 0x134
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char Title[11];
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char ManufacturerCode[4];
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uint8_t CgbFlag;
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char LicenseeCode[2];
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uint8_t SgbFlag;
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uint8_t CartType;
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uint8_t PrgRomSize;
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uint8_t CartRamSize;
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uint8_t DestCode;
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uint8_t OldLicenseeCode;
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uint8_t MaskRomVersion;
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uint8_t HeaderChecksum;
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uint8_t GlobalChecksum[2];
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uint32_t GetPrgRomSize()
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{
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if(PrgRomSize < 16) {
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return 0x8000 << PrgRomSize;
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}
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return 0x8000;
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}
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uint32_t GetCartRamSize()
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{
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if(CartType == 5 || CartType == 6) {
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//MBC2 has 512x4bits of cart ram
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return 0x200;
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}
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switch(CartRamSize) {
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case 0: return 0;
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case 1: return 0x800;
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case 2: return 0x2000;
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case 3: return 0x8000;
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case 4: return 0x20000;
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case 5: return 0x10000;
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}
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return 0;
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}
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bool HasBattery()
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{
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switch(CartType) {
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case 0x03: case 0x06: case 0x09: case 0x0D:
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case 0x0F: case 0x10: case 0x13: case 0x1B:
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case 0x1E: case 0x22: case 0xFF:
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return true;
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}
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return false;
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}
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string GetCartName()
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{
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int nameLength = 11;
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for(int i = 0; i < 11; i++) {
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if(Title[i] == 0) {
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nameLength = i;
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break;
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}
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}
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string name = string(Title, nameLength);
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size_t lastNonSpace = name.find_last_not_of(' ');
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if(lastNonSpace != string::npos) {
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return name.substr(0, lastNonSpace + 1);
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} else {
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return name;
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}
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}
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};
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