private List <UInt32> writeSubroutineForceFetchFakeVentureCard(VAVAddr fakeVentureCard)
{
PowerPcAsm.Pair16Bit v = PowerPcAsm.make16bitValuePair((UInt32)fakeVentureCard);
// precondition: r3 is ChanceCardUI *
// ChanceCardUI->field_0x34 is ChanceBoard *
// ChanceBoard->field_0x158 is current venture card id
var asm = new List <UInt32>();
asm.Add(PowerPcAsm.lis(6, v.upper16Bit)); // \
asm.Add(PowerPcAsm.addi(6, 6, v.lower16Bit)); // / r6 <- forceVentureCardVariable
asm.Add(PowerPcAsm.lwz(4, 0x0, 6)); // | r4 <- forceVentureCard
asm.Add(PowerPcAsm.cmpwi(4, 0x0)); // | if(forceVentureCard != 0)
asm.Add(PowerPcAsm.beq(7)); // | {
asm.Add(PowerPcAsm.lwz(5, 0x34, 3)); // | r5 <- ChanceCardUI.ChanceBoard
asm.Add(PowerPcAsm.stw(4, 0x158, 5)); // | ChanceBoard.currentVentureCardId <- r4
asm.Add(PowerPcAsm.li(5, 0)); // |\ forceVentureCard <- 0
asm.Add(PowerPcAsm.stw(5, 0x0, 6)); // |/
asm.Add(PowerPcAsm.li(8, 0x0)); // | r8 <- 0 (the venture card is initialized)
asm.Add(PowerPcAsm.blr()); // | return r4 and r8
// | }
asm.Add(PowerPcAsm.li(4, -0x1)); // | r4 <- -1
asm.Add(PowerPcAsm.li(8, 0x3)); // | r8 <- 3 (the venture card is continued to be executed)
asm.Add(PowerPcAsm.blr()); // | return r4 and r8
return(asm);
}
private List <UInt32> writeSubroutineSkipMapUnlockCheck(AddressMapper addressMapper, VAVAddr entryAddr, VAVAddr returnContinueAddr, VAVAddr returnSkipMapUnlockedCheck)
{
// precondition: r26 is mapid
// r3 is unused
// postcondition: r3 is mapid
var asm = new List <UInt32>();
asm.Add(PowerPcAsm.or(3, 26, 26)); // r3 <- mapid
asm.Add(PowerPcAsm.cmpwi(3, -1)); // mapid == -1 ?
asm.Add(PowerPcAsm.beq(entryAddr, asm.Count, returnSkipMapUnlockedCheck)); // goto skipMapUnlockedCheck
asm.Add(PowerPcAsm.b(entryAddr, asm.Count, returnContinueAddr)); // else goto returnContinueAddr
return(asm);
}
private List <UInt32> writeGetTextureForCustomSquareRoutine(byte register_textureType, byte register_squareType)
{
var asm = new List <UInt32>();
asm.Add(PowerPcAsm.li(register_textureType, 0x1)); // textureType = 1
asm.Add(PowerPcAsm.cmpwi(register_squareType, 0x2e)); // if(squareType == 0x2e)
asm.Add(PowerPcAsm.beq(2)); // {
asm.Add(PowerPcAsm.blr()); // return textureType;
// } else {
asm.Add(PowerPcAsm.li(register_textureType, 0x5)); // textureType = 5
asm.Add(PowerPcAsm.blr()); // return textureType;
// }
return(asm);
}
private List <UInt32> writeUploadSimulatedButtonPress(AddressMapper addressMapper, VAVAddr routineStartAddress, VAVAddr returnAddr)
{
var asm = new List <UInt32>();
// 0x804363b4 (4 bytes): force simulated button press
var forceSimulatedButtonPress = PowerPcAsm.make16bitValuePair((UInt32)addressMapper.toVersionAgnosticAddress((BSVAddr)0x804363b4));
var pressedButtonsBitArray = PowerPcAsm.make16bitValuePair((UInt32)addressMapper.toVersionAgnosticAddress((BSVAddr)0x8078C880));
asm.Add(PowerPcAsm.lis(6, forceSimulatedButtonPress.upper16Bit)); // \
asm.Add(PowerPcAsm.addi(6, 6, forceSimulatedButtonPress.lower16Bit)); // / r6 <- &forceSimulatedButtonPress
asm.Add(PowerPcAsm.lis(7, pressedButtonsBitArray.upper16Bit)); // \
asm.Add(PowerPcAsm.addi(7, 7, pressedButtonsBitArray.lower16Bit)); // / r7 <- &pressedButtonsBitArray
asm.Add(PowerPcAsm.lwz(0, 0x0, 6)); // r0 <- forceSimulatedButtonPress
asm.Add(PowerPcAsm.cmpwi(0, 0x0)); // if (forceSimulatedButtonPress != 0)
asm.Add(PowerPcAsm.beq(4)); // {
asm.Add(PowerPcAsm.stw(0, 0x0, 7)); // pressedButtonsBitArray <- forceSimulatedButtonPress
asm.Add(PowerPcAsm.li(0, 0x0)); // \
asm.Add(PowerPcAsm.stw(0, 0x0, 6)); // / forceSimulatedButtonPress <- 0
// }
asm.Add(PowerPcAsm.lwz(0, 0x4, 3)); // *replaced opcode*
asm.Add(PowerPcAsm.b(routineStartAddress, asm.Count, returnAddr)); // return
return(asm);
}
