/* * This file is part of Luma3DS * Copyright (C) 2016-2020 Aurora Wright, TuxSH * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . * * Additional Terms 7.b and 7.c of GPLv3 apply to this file: * * Requiring preservation of specified reasonable legal notices or * author attributions in that material or in the Appropriate Legal * Notices displayed by works containing it. * * Prohibiting misrepresentation of the origin of that material, * or requiring that modified versions of such material be marked in * reasonable ways as different from the original version. */ #include <3ds.h> #include #include "menus/cheats.h" #include "memory.h" #include "draw.h" #include "menu.h" #include "utils.h" #include "fmt.h" #include "ifile.h" #include "pmdbgext.h" #define MAKE_QWORD(hi,low) \ ((u64) ((((u64)(hi)) << 32) | (low))) typedef struct CheatDescription { struct { u8 active : 1; u8 valid : 1; u8 hasKeyCode : 1; u8 activeStorage : 1; }; char name[39]; u32 codesCount; u32 storage1; u32 storage2; u64 codes[0]; } CheatDescription; typedef struct BufferedFile { IFile file; u64 curPos; u64 maxPos; char buffer[512]; } BufferedFile; CheatDescription* cheats[1024] = { 0 }; u8 cheatBuffer[32768] = { 0 }; u8 cheatPage[0x1000] = { 0 }; typedef struct CheatState { u32 index; u32 offset1; u32 offset2; u32 data1; u32 data2; struct { u8 activeOffset : 1; u8 activeData : 1; u8 conditionalMode : 3; u8 data1Mode : 1; u8 data2Mode : 1; u8 floatMode : 1; }; u8 typeELine; u8 typeEIdx; s8 loopLine; u32 loopCount; u32 ifStack; u32 storedStack; u8 ifCount; u8 storedIfCount; } CheatState; CheatState cheat_state = { 0 }; u8 cheatCount = 0; u64 cheatTitleInfo = -1ULL; u64 cheatRngState = 0; static inline u32* activeOffset() { return cheat_state.activeOffset ? &cheat_state.offset2 : &cheat_state.offset1; } static inline u32* activeData() { return cheat_state.activeData ? &cheat_state.data2 : &cheat_state.data1; } static inline u32* activeStorage(CheatDescription* desc) { return desc->activeStorage ? &desc->storage2 : &desc->storage1; } char failureReason[64]; static u32 Cheat_GetRandomNumber(void) { cheatRngState = 0x5D588B656C078965ULL * cheatRngState + 0x0000000000269EC3ULL; return (u32)(cheatRngState >> 32); } static bool Cheat_IsValidAddress(const Handle processHandle, u32 address, u32 size) { MemInfo info; PageInfo out; Result res = svcQueryDebugProcessMemory(&info, &out, processHandle, address); if (R_SUCCEEDED(res) && info.state != MEMSTATE_FREE && info.base_addr > 0 && info.base_addr <= address && address <= info.base_addr + info.size - size) { return true; } return false; } static u32 ReadWriteBuffer32 = 0; static u16 ReadWriteBuffer16 = 0; static u8 ReadWriteBuffer8 = 0; static bool Cheat_Write8(const Handle processHandle, u32 offset, u8 value) { u32 addr = *activeOffset() + offset; if (addr >= 0x01E81000 && addr < 0x01E82000) { cheatPage[addr - 0x01E81000] = value; return true; } if (Cheat_IsValidAddress(processHandle, addr, 1)) { *((u8*) (&ReadWriteBuffer8)) = value; return R_SUCCEEDED(svcWriteProcessMemory(processHandle, &ReadWriteBuffer8, addr, 1)); } return false; } static bool Cheat_Write16(const Handle processHandle, u32 offset, u16 value) { u32 addr = *activeOffset() + offset; if (addr >= 0x01E81000 && addr + 1 < 0x01E82000) { *(u16*)(cheatPage + addr - 0x01E81000) = value; return true; } if (Cheat_IsValidAddress(processHandle, addr, 2)) { *((u16*) (&ReadWriteBuffer16)) = value; return R_SUCCEEDED(svcWriteProcessMemory(processHandle, &ReadWriteBuffer16, addr, 2)); } return false; } static bool Cheat_Write32(const Handle processHandle, u32 offset, u32 value) { u32 addr = *activeOffset() + offset; if (addr >= 0x01E81000 && addr + 3 < 0x01E82000) { *(u32*)(cheatPage + addr - 0x01E81000) = value; return true; } if (Cheat_IsValidAddress(processHandle, addr, 4)) { *((u32*) (&ReadWriteBuffer32)) = value; return R_SUCCEEDED(svcWriteProcessMemory(processHandle, &ReadWriteBuffer32, addr, 4)); } return false; } static bool Cheat_Read8(const Handle processHandle, u32 offset, u8* retValue) { u32 addr = *activeOffset() + offset; if (addr >= 0x01E81000 && addr < 0x01E82000) { *retValue = cheatPage[addr - 0x01E81000]; return true; } if (Cheat_IsValidAddress(processHandle, addr, 1)) { Result res = svcReadProcessMemory(&ReadWriteBuffer8, processHandle, addr, 1); *retValue = *((u8*) (&ReadWriteBuffer8)); return R_SUCCEEDED(res); } return false; } static bool Cheat_Read16(const Handle processHandle, u32 offset, u16* retValue) { u32 addr = *activeOffset() + offset; if (addr >= 0x01E81000 && addr + 1 < 0x01E82000) { *retValue = *(u16*)(cheatPage + addr - 0x01E81000); return true; } if (Cheat_IsValidAddress(processHandle, addr, 2)) { Result res = svcReadProcessMemory(&ReadWriteBuffer16, processHandle, addr, 2); *retValue = *((u16*) (&ReadWriteBuffer16)); return R_SUCCEEDED(res); } return false; } static bool Cheat_Read32(const Handle processHandle, u32 offset, u32* retValue) { u32 addr = *activeOffset() + offset; if (addr >= 0x01E81000 && addr + 3 < 0x01E82000) { *retValue = *(u32*)(cheatPage + addr - 0x01E81000); return true; } if (Cheat_IsValidAddress(processHandle, addr, 4)) { Result res = svcReadProcessMemory(&ReadWriteBuffer32, processHandle, addr, 4); *retValue = *((u32*) (&ReadWriteBuffer32)); return R_SUCCEEDED(res); } return false; } static u8 typeEMapping[] = { 4 << 3, 5 << 3, 6 << 3, 7 << 3, 0 << 3, 1 << 3, 2 << 3, 3 << 3 }; static u8 Cheat_GetNextTypeE(const CheatDescription* cheat) { if (cheat_state.typeEIdx == 7) { cheat_state.typeEIdx = 0; cheat_state.typeELine++; } else { cheat_state.typeEIdx++; } return (u8) ((cheat->codes[cheat_state.typeELine] >> (typeEMapping[cheat_state.typeEIdx])) & 0xFF); } static u32 Cheat_ApplyCheat(const Handle processHandle, CheatDescription* const cheat) { cheat_state.index = 0; cheat_state.offset1 = 0; cheat_state.offset2 = 0; cheat_state.data1 = 0; cheat_state.data2 = 0; cheat_state.activeOffset = 0; cheat_state.activeData = 0; cheat_state.conditionalMode = 0; cheat_state.data1Mode = 0; cheat_state.data2Mode = 0; cheat_state.floatMode = 0; cheat_state.loopCount = 0; cheat_state.loopLine = -1; cheat_state.ifStack = 0; cheat_state.storedStack = 0; cheat_state.ifCount = 0; cheat_state.storedIfCount = 0; while (cheat_state.index < cheat->codesCount) { bool skipExecution = (cheat_state.ifStack & 0x00000001) != 0; u32 arg0 = (u32) ((cheat->codes[cheat_state.index] >> 32) & 0x00000000FFFFFFFFULL); u32 arg1 = (u32) ((cheat->codes[cheat_state.index]) & 0x00000000FFFFFFFFULL); if (arg0 == 0 && arg1 == 0) { return 0; } u32 code = ((arg0 >> 28) & 0x0F); u32 subcode = ((arg0 >> 24) & 0x0F); u32 codeArg = arg0 & 0x0F; switch (code) { case 0x0: // 0 Type // Format: 0XXXXXXX YYYYYYYY // Description: 32bit write of YYYYYYYY to 0XXXXXXX. if (!skipExecution) { if (!Cheat_Write32(processHandle, (arg0 & 0x0FFFFFFF), arg1)) return 0; } break; case 0x1: // 1 Type // Format: 1XXXXXXX 0000YYYY // Description: 16bit write of YYYY to 0XXXXXXX. if (!skipExecution) { if (!Cheat_Write16(processHandle, (arg0 & 0x0FFFFFFF), (u16) (arg1 & 0xFFFF))) return 0; } break; case 0x2: // 2 Type // Format: 2XXXXXXX 000000YY // Description: 8bit write of YY to 0XXXXXXX. if (!skipExecution) { if (!Cheat_Write8(processHandle, (arg0 & 0x0FFFFFFF), (u8) (arg1 & 0xFF))) return 0; } break; case 0x3: // 3 Type // Format: 3XXXXXXXX YYYYYYYY // Description: 32bit if less than. // Simple: If the value at address 0XXXXXXX is less than the value YYYYYYYY. // Example: 323D6B28 10000000 { u32 value = 0; if (!Cheat_Read32(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; cheat_state.ifStack <<= 1; if (value < arg1) { cheat_state.ifStack |= skipExecution ? 1 : 0; } else { cheat_state.ifStack |= 1; } cheat_state.ifCount++; } break; case 0x4: // 4 Type // Format: 4XXXXXXXX YYYYYYYY // Description: 32bit if greater than. // Simple: If the value at address 0XXXXXXX is greater than the value YYYYYYYY. // Example: 423D6B28 10000000 { u32 value = 0; if (!Cheat_Read32(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; cheat_state.ifStack <<= 1; if (value > arg1) { cheat_state.ifStack |= skipExecution ? 1 : 0; } else { cheat_state.ifStack |= 1; } cheat_state.ifCount++; } break; case 0x5: // 5 Type // Format: 5XXXXXXXX YYYYYYYY // Description: 32bit if equal to. // Simple: If the value at address 0XXXXXXX is equal to the value YYYYYYYY. // Example: 523D6B28 10000000 { u32 value = 0; if (!Cheat_Read32(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; cheat_state.ifStack <<= 1; if (value == arg1) { cheat_state.ifStack |= skipExecution ? 1 : 0; } else { cheat_state.ifStack |= 1; } cheat_state.ifCount++; } break; case 0x6: // 6 Type // Format: 3XXXXXXXX YYYYYYYY // Description: 32bit if not equal to. // Simple: If the value at address 0XXXXXXX is not equal to the value YYYYYYYY. // Example: 623D6B28 10000000 { u32 value = 0; if (!Cheat_Read32(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; cheat_state.ifStack <<= 1; if (value != arg1) { cheat_state.ifStack |= skipExecution ? 1 : 0; } else { cheat_state.ifStack |= 1; } cheat_state.ifCount++; } break; case 0x7: // 7 Type // Format: 7XXXXXXXX 0000YYYY // Description: 16bit if less than. // Simple: If the value at address 0XXXXXXX is less than the value YYYY. // Example: 723D6B28 00005400 { bool newSkip; u16 mask = (u16) ((arg1 >> 16) & 0xFFFF); u16 value = 0; if (!Cheat_Read16(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; switch (cheat_state.conditionalMode) { case 0x0: newSkip = !((value & (~mask)) < (arg1 & 0xFFFF)); break; case 0x1: newSkip = !((value & (~mask)) < (*activeData() & (~mask))); break; case 0x2: newSkip = !((*activeData() & (~mask)) < (arg1 & 0xFFFF)); break; case 0x3: newSkip = !((*activeStorage(cheat) & (~mask)) < (arg1 & 0xFFFF)); break; case 0x4: newSkip = !((*activeData() & (~mask)) < (*activeStorage(cheat) & (~mask))); break; default: return 0; } cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0; cheat_state.ifCount++; } break; case 0x8: // 8 Type // Format: 8XXXXXXXX 0000YYYY // Description: 16bit if greater than. // Simple: If the value at address 0XXXXXXX is greater than the value YYYY. // Example: 823D6B28 00005400 { bool newSkip; u16 mask = (u16) ((arg1 >> 16) & 0xFFFF); u16 value = 0; if (!Cheat_Read16(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; switch (cheat_state.conditionalMode) { case 0x0: newSkip = !((value & (~mask)) > (arg1 & 0xFFFF)); break; case 0x1: newSkip = !((value & (~mask)) > (*activeData() & (~mask))); break; case 0x2: newSkip = !((*activeData() & (~mask)) > (arg1 & 0xFFFF)); break; case 0x3: newSkip = !((*activeStorage(cheat) & (~mask)) > (arg1 & 0xFFFF)); break; case 0x4: newSkip = !((*activeData() & (~mask)) > (*activeStorage(cheat) & (~mask))); break; default: return 0; } cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0; cheat_state.ifCount++; } break; case 0x9: // 9 Type // Format: 9XXXXXXXX 0000YYYY // Description: 16bit if equal to. // Simple: If the value at address 0XXXXXXX is equal to the value YYYY. // Example: 923D6B28 00005400 { bool newSkip; u16 mask = (u16) ((arg1 >> 16) & 0xFFFF); u16 value = 0; if (!Cheat_Read16(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; switch (cheat_state.conditionalMode) { case 0x0: newSkip = !((value & (~mask)) == (arg1 & 0xFFFF)); break; case 0x1: newSkip = !((value & (~mask)) == (*activeData() & (~mask))); break; case 0x2: newSkip = !((*activeData() & (~mask)) == (arg1 & 0xFFFF)); break; case 0x3: newSkip = !((*activeStorage(cheat) & (~mask)) == (arg1 & 0xFFFF)); break; case 0x4: newSkip = !((*activeData() & (~mask)) == (*activeStorage(cheat) & (~mask))); break; default: return 0; } cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0; cheat_state.ifCount++; } break; case 0xA: // A Type // Format: AXXXXXXXX 0000YYYY // Description: 16bit if not equal to. // Simple: If the value at address 0XXXXXXX is not equal to the value YYYY. // Example: A23D6B28 00005400 { bool newSkip; u16 mask = (u16) ((arg1 >> 16) & 0xFFFF); u16 value = 0; if (!Cheat_Read16(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; switch (cheat_state.conditionalMode) { case 0x0: newSkip = !((value & (~mask)) != (arg1 & 0xFFFF)); break; case 0x1: newSkip = !((value & (~mask)) != (*activeData() & (~mask))); break; case 0x2: newSkip = !((*activeData() & (~mask)) != (arg1 & 0xFFFF)); break; case 0x3: newSkip = !((*activeStorage(cheat) & (~mask)) != (arg1 & 0xFFFF)); break; case 0x4: newSkip = !((*activeData() & (~mask)) != (*activeStorage(cheat) & (~mask))); break; default: return 0; } cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0; cheat_state.ifCount++; } break; case 0xB: // B Type // Format: BXXXXXXX 00000000 // Description: Loads offset register with value at given XXXXXXX if (!skipExecution) { u32 value; if (!Cheat_Read32(processHandle, arg0 & 0x0FFFFFFF, &value)) return 0; *activeOffset() = value; } break; case 0xC: // C Type // Format: C0000000 ZZZZZZZZ // Description: Repeat following lines at specified offset. // Simple: used to write a value to an address, and then continues to write that value Z number of times to all addresses at an offset determined by the (D6, D7, D8, or DC) type following it. // Note: used with the D6, D7, D8, and DC types. C types can not be nested. // Example: // C0000000 00000005 // 023D6B28 0009896C // DC000000 00000010 // D2000000 00000000 switch (subcode) { case 0x00: cheat_state.loopLine = cheat_state.index; cheat_state.loopCount = arg1; cheat_state.storedStack = cheat_state.ifStack; cheat_state.storedIfCount = cheat_state.ifCount; break; case 0x01: cheat_state.loopLine = cheat_state.index; cheat_state.loopCount = cheat_state.data1; cheat_state.storedStack = cheat_state.ifStack; cheat_state.storedIfCount = cheat_state.ifCount; break; case 0x02: cheat_state.loopLine = cheat_state.index; cheat_state.loopCount = cheat_state.data2; cheat_state.storedStack = cheat_state.ifStack; cheat_state.storedIfCount = cheat_state.ifCount; break; } break; case 0xD: switch (subcode) { case 0x00: // D0 Type // Format: D0000000 00000000 // Description: ends most recent conditional. // Simple: type 3 through A are all "conditionals," the conditional most recently executed before this line will be terminated by it. // Example: // 94000130 FFFB0000 // 74000100 FF00000C // 023D6B28 0009896C // D0000000 00000000 // The 7 type line would be terminated. if (arg1 == 0) { if (cheat_state.loopLine != -1) { if (cheat_state.ifCount > 0 && cheat_state.ifCount > cheat_state.storedIfCount) { cheat_state.ifStack >>= 1; cheat_state.ifCount--; } else { if (cheat_state.loopCount > 0) { cheat_state.loopCount--; if (cheat_state.loopCount == 0) { cheat_state.loopLine = -1; } else if (cheat_state.loopLine != -1) { cheat_state.index = cheat_state.loopLine; } } } } else { if (cheat_state.ifCount > 0) { cheat_state.ifStack >>= 1; cheat_state.ifCount--; } } } // D0000000 00000001 // Loop break else if (!skipExecution && arg1 == 1) { cheat_state.loopCount = 0; cheat_state.loopLine = -1; cheat_state.index++; while (cheat_state.index < cheat->codesCount) { u64 code = cheat->codes[cheat_state.index++]; if (code == 0xD100000000000000ull || code == 0xD200000000000000ull) { break; } } } break; case 0x01: // D1 Type // Format: D1000000 00000000 // Description: ends repeat block. // Simple: will end all conditionals within a C type code, along with the C type itself. // Example: // 94000130 FFFB0000 // C0000000 00000010 // 8453DA0C 00000200 // 023D6B28 0009896C // D6000000 00000005 // D1000000 00000000 // The C line, 8 line, 0 line, and D6 line would be terminated. if (cheat_state.loopCount > 0) { cheat_state.ifStack = cheat_state.storedStack; cheat_state.ifCount = cheat_state.storedIfCount; cheat_state.loopCount--; if (cheat_state.loopCount == 0) { cheat_state.loopLine = -1; } else { if (cheat_state.loopLine != -1) { cheat_state.index = cheat_state.loopLine; } } } break; case 0x02: // D2 Type // Format: D2000000 00000000 // Description: ends all conditionals/repeats before it and sets offset and stored to zero. // Simple: ends all lines. // Example: // 94000130 FEEF0000 // C0000000 00000010 // 8453DA0C 00000200 // 023D6B28 0009896C // D6000000 00000005 // D2000000 00000000 // All lines would terminate. if (arg1 == 0) { if (cheat_state.loopCount > 0) { cheat_state.loopCount--; if (cheat_state.loopCount == 0) { *activeData() = 0; *activeOffset() = 0; cheat_state.loopLine = -1; cheat_state.ifStack = 0; cheat_state.ifCount = 0; } else { if (cheat_state.loopLine != -1) { cheat_state.index = cheat_state.loopLine; } } } else { *activeData() = 0; *activeOffset() = 0; cheat_state.ifStack = 0; cheat_state.ifCount = 0; } } // D2000000 00000001 // Return else if (!skipExecution && arg1 == 1) { cheat_state.index = cheat->codesCount; } break; case 0x03: // D3 Type // Format: D3000000 XXXXXXXX // Description: sets offset. // Simple: loads the address X so that lines after can modify the value at address X. // Note: used with the D4, D5, D6, D7, D8, and DC types. // Example: D3000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { cheat_state.offset1 = arg1; } else if (codeArg == 1) { cheat_state.offset2 = arg1; } } break; case 0x04: // D4 Type // Format: D4000000 YYYYYYYY // Description: adds to the stored address' value. // Simple: adds to the value at the address defined by lines D3, D9, DA, and DB. // Note: used with the D3, D9, DA, DB, DC types. // Example: D4000000 00000025 if (!skipExecution) { if (codeArg == 0) { *activeData() += arg1; } else if (codeArg == 1) { cheat_state.data1 += arg1 + cheat_state.data2; } else if (codeArg == 2) { cheat_state.data2 += arg1 + cheat_state.data1; } } break; case 0x05: // D5 Type // Format: D5000000 YYYYYYYY // Description: sets the stored address' value. // Simple: makes the value at the address defined by lines D3, D9, DA, and DB to YYYYYYYY. // Note: used with the D3, D9, DA, DB, and DC types. // Example: D5000000 34540099 if (!skipExecution) { if (codeArg == 0) { *activeData() = arg1; } else if (codeArg == 1) { cheat_state.data1 = arg1; } else if (codeArg == 2) { cheat_state.data2 = arg1; } } break; case 0x06: // D6 Type // Format: D6000000 XXXXXXXX // Description: 32bit store and increment by 4. // Simple: stores the value at address XXXXXXXX and to addresses in increments of 4. // Note: used with the C, D3, and D9 types. // Example: D3000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { if (!Cheat_Write32(processHandle, arg1, *activeData())) return 0; *activeOffset() += 4; } else if (codeArg == 1) { if (!Cheat_Write32(processHandle, arg1, cheat_state.data1)) return 0; *activeOffset() += 4; } else if (codeArg == 2) { if (!Cheat_Write32(processHandle, arg1, cheat_state.data2)) return 0; *activeOffset() += 4; } } break; case 0x07: // D7 Type // Format: D7000000 XXXXXXXX // Description: 16bit store and increment by 2. // Simple: stores 2 bytes of the value at address XXXXXXXX and to addresses in increments of 2. // Note: used with the C, D3, and DA types. // Example: D7000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { if (!Cheat_Write16(processHandle, arg1, (u16) (*activeData() & 0xFFFF))) return 0; *activeOffset() += 2; } else if (codeArg == 1) { if (!Cheat_Write16(processHandle, arg1, (u16) (cheat_state.data1 & 0xFFFF))) return 0; *activeOffset() += 2; } else if (codeArg == 2) { if (!Cheat_Write16(processHandle, arg1, (u16) (cheat_state.data2 & 0xFFFF))) return 0; *activeOffset() += 2; } } break; case 0x08: // D8 Type // Format: D8000000 XXXXXXXX // Description: 8bit store and increment by 1. // Simple: stores 1 byte of the value at address XXXXXXXX and to addresses in increments of 1. // Note: used with the C, D3, and DB types. // Example: D8000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { if (!Cheat_Write8(processHandle, arg1, (u8) (*activeData() & 0xFF))) return 0; *activeOffset() += 1; } else if (codeArg == 1) { if (!Cheat_Write8(processHandle, arg1, (u8) (cheat_state.data1 & 0xFF))) return 0; *activeOffset() += 1; } else if (codeArg == 2) { if (!Cheat_Write8(processHandle, arg1, (u8) (cheat_state.data2 & 0xFF))) return 0; *activeOffset() += 1; } } break; case 0x09: // D9 Type // Format: D9000000 XXXXXXXX // Description: 32bit load. // Simple: loads the value from address X. // Note: used with the D5 and D6 types. // Example: D9000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { u32 value = 0; if (!Cheat_Read32(processHandle, arg1, &value)) return 0; *activeData() = value; } else if (codeArg == 1) { u32 value = 0; if (!Cheat_Read32(processHandle, arg1, &value)) return 0; cheat_state.data1 = value; } else if (codeArg == 2) { u32 value = 0; if (!Cheat_Read32(processHandle, arg1, &value)) return 0; cheat_state.data2 = value; } } break; case 0x0A: // DA Type // Format: DA000000 XXXXXXXX // Description: 16bit load. // Simple: loads 2 bytes from address X. // Note: used with the D5 and D7 types. // Example: DA000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { u16 value = 0; if (!Cheat_Read16(processHandle, arg1, &value)) return 0; *activeData() = value; } else if (codeArg == 1) { u16 value = 0; if (!Cheat_Read16(processHandle, arg1, &value)) return 0; cheat_state.data1 = value; } else if (codeArg == 2) { u16 value = 0; if (!Cheat_Read16(processHandle, arg1, &value)) return 0; cheat_state.data2 = value; } } break; case 0x0B: // DB Type // Format: DB000000 XXXXXXXX // Description: 8bit load. // Simple: loads 1 byte from address X. // Note: used with the D5 and D8 types. // Example: DB000000 023D6B28 if (!skipExecution) { if (codeArg == 0) { u8 value = 0; if (!Cheat_Read8(processHandle, arg1, &value)) return 0; *activeData() = value; } else if (codeArg == 1) { u8 value = 0; if (!Cheat_Read8(processHandle, arg1, &value)) return 0; cheat_state.data1 = value; } else if (codeArg == 2) { u8 value = 0; if (!Cheat_Read8(processHandle, arg1, &value)) return 0; cheat_state.data2 = value; } } break; case 0x0C: // DC Type // Format: DC000000 VVVVVVVV // Description: 32bit store and increment by V. // Simple: stores the value at address(es) before it and to addresses in increments of V. // Note: used with the C, D3, D5, D9, D8, DB types. // Example: DC000000 00000100 if (!skipExecution) { *activeOffset() += arg1; } break; case 0x0D: // DD Type { bool newSkip = !(arg1 == 0 || (HID_PAD & arg1) == arg1); cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0;; cheat_state.ifCount++; } break; case 0x0E: // Touchpad conditional // DE000000 AAAABBBB: AAAA >= X position >= BBBB // DE000001 AAAABBBB: AAAA >= Y position >= BBBB { bool newSkip; u32 highBound = arg1 >> 16; u32 lowBound = arg1 & 0xFFFF; touchPosition touch; hidTouchRead(&touch); if (codeArg == 0) { newSkip = !(lowBound <= touch.px && highBound >= touch.px); } else if (codeArg == 1) { newSkip = !(lowBound <= touch.py && highBound >= touch.py); } else { return 0; } cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0; cheat_state.ifCount++; } break; case 0x0F: { switch (codeArg) { case 0x00: { if (arg1 & 0x00010000) { if (arg1 & 0x1) { cheat_state.offset2 = cheat_state.offset1; } else { cheat_state.offset1 = cheat_state.offset2; } } else if (arg1 & 0x00020000) { if (arg1 & 0x1) { cheat_state.data2 = cheat_state.offset2; } else { cheat_state.data1 = cheat_state.offset1; } } else { cheat_state.activeOffset = arg1 & 0x1; } } break; case 0x01: { if (arg1 & 0x00010000) { if (arg1 & 0x1) { cheat_state.data2 = cheat_state.data1; } else { cheat_state.data1 = cheat_state.data2; } } else if (arg1 & 0x00020000) { if (arg1 & 0x1) { cheat_state.offset2 = cheat_state.data2; } else { cheat_state.offset1 = cheat_state.data1; } } else { cheat_state.activeData = arg1 & 0x1; } } break; case 0x02: { if (arg1 & 0x00010000) { if (arg1 & 0x1) { cheat_state.data2 = cheat->storage2; } else { cheat_state.data1 = cheat->storage1; } } else if (arg1 & 0x00020000) { if (arg1 & 0x1) { cheat->storage2 = cheat_state.data2; } else { cheat->storage1 = cheat_state.data1; } } else { cheat->activeStorage = arg1 & 0x1; } } break; case 0x0E: { if (cheat_state.activeData) { switch (arg1) { case 0x0: { cheat_state.data2Mode = 0; } break; case 0x1: { cheat_state.data2Mode = 1; } break; case 0x10: { cheat_state.data2Mode = 0; float val; memcpy(&val, &cheat_state.data2, sizeof(float)); cheat_state.data2 = val; } break; case 0x11: { cheat_state.data2Mode = 1; float val = cheat_state.data2; memcpy(&cheat_state.data2, &val, sizeof(float)); } break; default: return 0; } } else { switch (arg1) { case 0x0: { cheat_state.data1Mode = 0; } break; case 0x1: { cheat_state.data1Mode = 1; } break; case 0x10: { cheat_state.data1Mode = 0; float val; memcpy(&val, &cheat_state.data1, sizeof(float)); cheat_state.data1 = val; } break; case 0x11: { cheat_state.data1Mode = 1; float val = cheat_state.data1; memcpy(&cheat_state.data1, &val, sizeof(float)); } break; default: return 0; } } } break; case 0x0F: { if (arg1 < 5) { cheat_state.conditionalMode = (u8)arg1; } else { return 0; } } break; default: return 0; } } break; default: return 0; } break; case 0xE: // E Type // Format: // EXXXXXXX UUUUUUUU // YYYYYYYY YYYYYYYY // Description: writes Y to X for U bytes. { u32 beginOffset = (arg0 & 0x0FFFFFFF); u32 count = arg1; cheat_state.typeELine = cheat_state.index; cheat_state.typeEIdx = 7; for (u32 i = 0; i < count; i++) { u8 byte = Cheat_GetNextTypeE(cheat); if (!skipExecution) { if (!Cheat_Write8(processHandle, beginOffset + i, byte)) return 0; } } cheat_state.index = cheat_state.typeELine; } break; case 0xF: { if (arg0 == 0xF0F00000) { // I have no clue how to implement this, or if it's even possible. Needs research. return 0; } else { switch (subcode) { case 0x0: { cheat_state.floatMode = arg1 & 0x1; } break; case 0x1: { if (cheat_state.floatMode) { u32 tmp; if (!Cheat_Read32(processHandle, arg0 & 0x00FFFFFF, &tmp)) { return 0; } float value; memcpy(&value, &tmp, sizeof(float)); value += arg1; memcpy(&tmp, &value, sizeof(u32)); if (!Cheat_Write32(processHandle, arg0 & 0x00FFFFFF, tmp)) { return 0; } } else { u32 tmp; if (!Cheat_Read32(processHandle, arg0 & 0x00FFFFFF, &tmp)) { return 0; } tmp += arg1; if (!Cheat_Write32(processHandle, arg0 & 0x00FFFFFF, tmp)) { return 0; } } } break; case 0x2: { if (cheat_state.floatMode) { u32 tmp; if (!Cheat_Read32(processHandle, arg0 & 0x00FFFFFF, &tmp)) { return 0; } float value; memcpy(&value, &tmp, sizeof(float)); value *= arg1; memcpy(&tmp, &value, sizeof(u32)); if (!Cheat_Write32(processHandle, arg0 & 0x00FFFFFF, tmp)) { return 0; } } else { u32 tmp; if (!Cheat_Read32(processHandle, arg0 & 0x00FFFFFF, &tmp)) { return 0; } tmp *= arg1; if (!Cheat_Write32(processHandle, arg0 & 0x00FFFFFF, tmp)) { return 0; } } } break; case 0x3: { if (cheat_state.floatMode) { u32 tmp; if (!Cheat_Read32(processHandle, arg0 & 0x00FFFFFF, &tmp)) { return 0; } float value; memcpy(&value, &tmp, sizeof(float)); value /= arg1; memcpy(&tmp, &value, sizeof(u32)); if (!Cheat_Write32(processHandle, arg0 & 0x00FFFFFF, tmp)) { return 0; } } else { u32 tmp; if (!Cheat_Read32(processHandle, arg0 & 0x00FFFFFF, &tmp)) { return 0; } tmp /= arg1; if (!Cheat_Write32(processHandle, arg0 & 0x00FFFFFF, tmp)) { return 0; } } } break; case 0x4: { if (cheat_state.data1Mode) { float value; memcpy(&value, activeData(), sizeof(float)); value *= arg1; memcpy(activeData(), &value, sizeof(float)); } else { *activeData() *= arg1; } } break; case 0x5: { if (cheat_state.data1Mode) { float value; memcpy(&value, activeData(), sizeof(float)); value /= arg1; memcpy(activeData(), &value, sizeof(float)); } else { *activeData() /= arg1; } } break; case 0x6: { *activeData() &= arg1; } break; case 0x7: { *activeData() |= arg1; } break; case 0x8: { *activeData() ^= arg1; } break; case 0x9: { *activeData() = ~*activeData(); } break; case 0xA: { *activeData() <<= arg1; } break; case 0xB: { *activeData() >>= arg1; } break; case 0xC: { u8 origActiveOffset = cheat_state.activeOffset; for (size_t i = 0; i < arg1; i++) { u8 data; cheat_state.activeOffset = 1; if (!Cheat_Read8(processHandle, 0, &data)) { return 0; } cheat_state.activeOffset = 0; if (!Cheat_Write8(processHandle, 0, data)) { return 0; } } cheat_state.activeOffset = origActiveOffset; } break; // Search for pattern case 0xE: { u32 searchSize = arg0 & 0xFFFF; if (searchSize <= arg1 && searchSize + cheat_state.index < cheat->codesCount) { bool newSkip = true; if (!skipExecution) // Don't do an expensive operation if we don't have to { u8* searchData = (u8*)(cheat->codes + cheat_state.index + 1); cheat_state.index += searchSize / 8; if (searchSize & 0x7) { cheat_state.index++; } for (size_t i = 0; i < arg1 - searchSize; i++) { u8 curVal; newSkip = false; for (size_t j = 0; j < searchSize; j++) { if (!Cheat_Read8(processHandle, i + j, &curVal)) { return 0; } if (curVal != searchData[j]) { newSkip = 1; break; } } if (!newSkip) { break; } } } cheat_state.ifStack <<= 1; cheat_state.ifStack |= (newSkip || skipExecution) ? 1 : 0; cheat_state.ifCount++; } else { return 0; } } break; case 0xF: { u32 range = arg1 - (arg0 & 0xFFFFFF); u32 number = Cheat_GetRandomNumber() % range; *activeData() = (arg0 & 0xFFFFFF) + number; } break; default: return 0; } } } break; // This should now not be possible default: return 0; } cheat_state.index++; } return 1; } static void Cheat_EatEvents(Handle debug) { DebugEventInfo info; Result r; while(true) { if((r = svcGetProcessDebugEvent(&info, debug)) != 0) { if(r == (s32)(0xd8402009)) { break; } } svcContinueDebugEvent(debug, 3); } } static Result Cheat_MapMemoryAndApplyCheat(u32 pid, CheatDescription* const cheat) { Handle processHandle; Handle debugHandle; Result res; res = svcOpenProcess(&processHandle, pid); if (R_SUCCEEDED(res)) { res = svcDebugActiveProcess(&debugHandle, pid); if (R_SUCCEEDED(res)) { Cheat_EatEvents(debugHandle); cheat->valid = Cheat_ApplyCheat(debugHandle, cheat); svcCloseHandle(debugHandle); svcCloseHandle(processHandle); cheat->active = 1; } else { sprintf(failureReason, "Debug process failed"); svcCloseHandle(processHandle); } } else { sprintf(failureReason, "Open process failed"); } return res; } static CheatDescription* Cheat_AllocCheat() { CheatDescription* cheat; if (cheatCount == 0) { cheat = (CheatDescription*) cheatBuffer; } else { CheatDescription* prev = cheats[cheatCount - 1]; cheat = (CheatDescription *) ((u8*) (prev) + sizeof(CheatDescription) + sizeof(u64) * (prev->codesCount)); } cheat->active = 0; cheat->valid = 1; cheat->codesCount = 0; cheat->hasKeyCode = 0; cheat->storage1 = 0; cheat->storage2 = 0; cheat->name[0] = '\0'; cheats[cheatCount] = cheat; cheatCount++; return cheat; } static void Cheat_AddCode(CheatDescription* cheat, u64 code) { if (cheat) { cheat->codes[cheat->codesCount] = code; (cheat->codesCount)++; } } static Result BufferedFile_Open(BufferedFile* file, FS_ArchiveID archiveId, FS_Path archivePath, FS_Path filePath, u32 flags) { Result res = 0; memset(file->buffer, '\0', sizeof(file->buffer)); res = IFile_Open(&file->file, archiveId, archivePath, filePath, flags); if (R_SUCCEEDED(res)) { file->curPos = 0; res = IFile_Read(&file->file, &file->maxPos, file->buffer, sizeof(file->buffer)); } return res; } static Result BufferedFile_Read(BufferedFile* file, u64* totalRead, void* buffer, u32 len) { Result res = 0; if (len == 0) { *totalRead = 0; return 0; } else if (file->curPos + len < file->maxPos) { memcpy(buffer, file->buffer + file->curPos, len); file->curPos += len; *totalRead = len; } else { *totalRead = 0; while(R_SUCCEEDED(res) && file->maxPos != 0 && *totalRead < len) { u32 toRead = file->maxPos - file->curPos < len - *totalRead ? file->maxPos - file->curPos : len - *totalRead; memcpy(buffer + *totalRead, file->buffer + file->curPos, toRead); *totalRead += toRead; file->curPos += toRead; if (file->curPos >= file->maxPos) { res = IFile_Read(&file->file, &file->maxPos, file->buffer, sizeof(file->buffer)); file->curPos = 0; } } } return res; } static Result Cheat_ReadLine(BufferedFile* file, char* line, u32 lineSize) { Result res = 0; u32 idx = 0; u64 total = 0; bool lastWasCarriageReturn = false; while (R_SUCCEEDED(res) && idx < lineSize) { res = BufferedFile_Read(file, &total, line + idx, 1); if (total == 0) { line[idx] = '\0'; return -1; } if (R_SUCCEEDED(res)) { if (line[idx] == '\r') { lastWasCarriageReturn = true; } else if (line[idx] == '\n') { if (lastWasCarriageReturn) { line[--idx] = '\0'; return idx; } else { line[idx] = '\0'; return idx; } } else if (line[idx] == '\0') { return -1; } else { lastWasCarriageReturn = false; } idx++; } } return res; } static bool Cheat_IsCodeLine(const char *line) { s32 len = strnlen(line, 1023); if (len != 17) { return false; } if (line[8] != ' ') { return false; } int i; for (i = 0; i < 8; i++) { char c = line[i]; if (!(('0' <= c && c <= '9') || ('A' <= c && c <= 'F') || ('a' <= c && c <= 'f'))) { return false; } } for (i = 9; i < 17; i++) { char c = line[i]; if (!(('0' <= c && c <= '9') || ('A' <= c && c <= 'F') || ('a' <= c && c <= 'f'))) { return false; } } return true; } static u64 Cheat_GetCode(const char *line) { u64 tmp = 0; int i; for (i = 0; i < 8; i++) { char c = line[i]; u8 code = 0; if ('0' <= c && c <= '9') { code = c - '0'; } if ('A' <= c && c <= 'F') { code = c - 'A' + 10; } if ('a' <= c && c <= 'f') { code = c - 'a' + 10; } tmp <<= 4; tmp |= (code & 0xF); } for (i = 9; i < 17; i++) { char c = line[i]; u8 code = 0; if ('0' <= c && c <= '9') { code = c - '0'; } if ('A' <= c && c <= 'F') { code = c - 'A' + 10; } if ('a' <= c && c <= 'f') { code = c - 'a' + 10; } tmp <<= 4; tmp |= (code & 0xF); } return tmp; } static char* stripWhitespace(char* in) { char* ret = in; while (*ret == ' ' || *ret == '\t') { ret++; } int back = strlen(ret) - 1; while (back > 0 && (ret[back] == ' ' || ret[back] == '\t')) { back--; } ret[back+1] = '\0'; return ret; } static void Cheat_LoadCheatsIntoMemory(u64 titleId) { cheatCount = 0; cheatTitleInfo = titleId; char path[64] = { 0 }; sprintf(path, "/luma/titles/%016llX/cheats.txt", titleId); BufferedFile file; if (R_FAILED(BufferedFile_Open(&file, ARCHIVE_SDMC, fsMakePath(PATH_EMPTY, ""), fsMakePath(PATH_ASCII, path), FS_OPEN_READ))) { // OK, let's try another source sprintf(path, "/cheats/%016llX.txt", titleId); if (R_FAILED(BufferedFile_Open(&file, ARCHIVE_SDMC, fsMakePath(PATH_EMPTY, ""), fsMakePath(PATH_ASCII, path), FS_OPEN_READ))) return; }; char line[1024] = { 0 }; Result res = 0; CheatDescription* cheat = 0; u32 cheatSize = 0; do { res = Cheat_ReadLine(&file, line, 1024); if (R_SUCCEEDED(res)) { char* strippedLine = stripWhitespace(line); s32 lineLen = strnlen(strippedLine, 1023); if (!lineLen) { continue; } if (strippedLine[0] == '#') { continue; } if (Cheat_IsCodeLine(strippedLine)) { if (cheatSize + sizeof(u64) >= sizeof(cheatBuffer)) { cheatCount--; break; } if (cheat) { u64 tmp = Cheat_GetCode(strippedLine); Cheat_AddCode(cheat, tmp); cheatSize += sizeof(u64); if (((tmp >> 32) & 0xFFFFFFFF) == 0xDD000000) { cheat->hasKeyCode = 1; } } } else { if (!cheat || cheat->codesCount > 0) { if (cheatSize + sizeof(CheatDescription) >= sizeof(cheatBuffer)) { break; } cheat = Cheat_AllocCheat(); cheatSize += sizeof(CheatDescription); } strncpy(cheat->name, line, 38); cheat->name[38] = '\0'; } } } while (R_SUCCEEDED(res) && cheatSize < sizeof(cheatBuffer)); IFile_Close(&file.file); if ((cheatCount > 0) && (cheats[cheatCount - 1]->codesCount == 0)) { cheatCount--; // Remove last empty cheat } memset(cheatPage, 0, 0x1000); } static u32 Cheat_GetCurrentProcessAndTitleId(u64* titleId) { FS_ProgramInfo programInfo; u32 pid; u32 launchFlags; Result res = PMDBG_GetCurrentAppInfo(&programInfo, &pid, &launchFlags); if (R_FAILED(res)) { *titleId = 0; return 0xFFFFFFFF; } *titleId = programInfo.programId; return pid; } void Cheat_SeedRng(u64 seed) { cheatRngState = seed; } void Cheat_ApplyCheats(void) { if (!cheatCount) { return; } u64 titleId = 0; u32 pid = Cheat_GetCurrentProcessAndTitleId(&titleId); if (!titleId) { cheatCount = 0; return; } if (titleId != cheatTitleInfo) { cheatCount = 0; return; } for (int i = 0; i < cheatCount; i++) { if (cheats[i]->active) { Cheat_MapMemoryAndApplyCheat(pid, cheats[i]); } } } void RosalinaMenu_Cheats(void) { u64 titleId = 0; u32 pid = Cheat_GetCurrentProcessAndTitleId(&titleId); if (titleId != 0) { if (cheatTitleInfo != titleId || cheatCount == 0) { Cheat_LoadCheatsIntoMemory(titleId); } } Draw_Lock(); Draw_ClearFramebuffer(); Draw_FlushFramebuffer(); Draw_Unlock(); if (titleId == 0 || cheatCount == 0) { do { Draw_Lock(); Draw_DrawString(10, 10, COLOR_TITLE, "Cheats"); if (titleId == 0) { Draw_DrawString(10, 30, COLOR_WHITE, "No suitable title found"); } else { Draw_DrawFormattedString(10, 30, COLOR_WHITE, "No cheats found for title %016llX", titleId); } Draw_FlushFramebuffer(); Draw_Unlock(); } while (!(waitInput() & BUTTON_B) && !terminationRequest); } else { s32 selected = 0, page = 0, pagePrev = 0; Result r = 0; do { Draw_Lock(); if (page != pagePrev || R_FAILED(r)) { Draw_ClearFramebuffer(); } if (R_SUCCEEDED(r)) { Draw_DrawFormattedString(10, 10, COLOR_TITLE, "Cheat list"); for (s32 i = 0; i < CHEATS_PER_MENU_PAGE && page * CHEATS_PER_MENU_PAGE + i < cheatCount; i++) { char buf[65] = { 0 }; s32 j = page * CHEATS_PER_MENU_PAGE + i; const char * checkbox = (cheats[j]->active ? "(x) " : "( ) "); const char * keyAct = (cheats[j]->hasKeyCode ? "*" : " "); sprintf(buf, "%s%s%s", checkbox, keyAct, cheats[j]->name); Draw_DrawString(30, 30 + i * SPACING_Y, cheats[j]->valid ? COLOR_WHITE : COLOR_RED, buf); Draw_DrawCharacter(10, 30 + i * SPACING_Y, COLOR_TITLE, j == selected ? '>' : ' '); } } else { Draw_DrawFormattedString(10, 10, COLOR_TITLE, "ERROR: %08lx", r); Draw_DrawFormattedString(10, 30, COLOR_RED, failureReason); } Draw_FlushFramebuffer(); Draw_Unlock(); if (terminationRequest) break; u32 pressed; do { pressed = waitInputWithTimeout(50); if (pressed != 0) break; } while (pressed == 0 && !terminationRequest); if (pressed & BUTTON_B) break; else if ((pressed & BUTTON_A) && R_SUCCEEDED(r)) { if (cheats[selected]->active) { cheats[selected]->active = 0; } else { r = Cheat_MapMemoryAndApplyCheat(pid, cheats[selected]); } } else if (pressed & BUTTON_DOWN) selected++; else if (pressed & BUTTON_UP) selected--; else if (pressed & BUTTON_LEFT) selected -= CHEATS_PER_MENU_PAGE; else if (pressed & BUTTON_RIGHT) { if (selected + CHEATS_PER_MENU_PAGE < cheatCount) selected += CHEATS_PER_MENU_PAGE; else if ((cheatCount - 1) / CHEATS_PER_MENU_PAGE == page) selected %= CHEATS_PER_MENU_PAGE; else selected = cheatCount - 1; } if (selected < 0) selected = cheatCount - 1; else if (selected >= cheatCount) selected = 0; pagePrev = page; page = selected / CHEATS_PER_MENU_PAGE; } while (!terminationRequest); } }