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Updated chtdb.txt and added new types F5, 52 & 53. Cleaned up type 51

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Chtdb.txt
=========
Updated the header to document all the new cheat types, added some more cheats
and cleaned up others.

New Cheat Types:-
=================
F5 - 16-Bit toggle cheat, predominatly used with the D7 cheat to enable/disable
      ASM cheats with the same key presses. See chtdb.txt for more information.

52 - Register Block Conditionals for use with the type 51 cheats. There are 128 
      sub types. See chtdb.txt for more information.
      
53 - Improved Slide Code cheat type, with support for 65536 addresses and a 16
      bit step and easily configurable step direction for value and address.
      See chtdb.txt for more information.      

Other Changes:-
===============
51 - Cleaned up - renumbered/renamed, Tested & Bugfixed. See chtdb.txt for more 
      information.
This commit is contained in:
PugsyMAME 2021-03-13 15:21:40 +00:00 committed by GitHub
parent bcd3bace83
commit 0fd593eb42
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 706 additions and 92 deletions
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758
src/core/cheats.cpp
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@ -15,7 +15,7 @@
#include <iomanip>
#include <sstream>
Log_SetChannel(Cheats);
static std::array<u32, 256> temp_variable; //Used for D7 ,51 & 52 cheat types
static std::array<u32, 256> cht_register; //Used for D7 ,51 & 52 cheat types
using KeyValuePairVector = std::vector<std::pair<std::string, std::string>>;
@ -1274,6 +1274,20 @@ void CheatCode::Apply() const
}
break;
case InstructionCode::ExtConstantSwap16:
{
const u16 value1 = Truncate16(inst.value32 & 0x0000FFFFu);
const u16 value2 = Truncate16((inst.value32 & 0xFFFF0000u) >> 16);
const u16 value = DoMemoryRead<u16>(inst.address);
if (value==value1)
DoMemoryWrite<u16>(inst.address, value2);
else if (value==value2)
DoMemoryWrite<u16>(inst.address, value1);
index++;
}
break;
case InstructionCode::ExtFindAndReplace:
{
@ -1471,98 +1485,125 @@ void CheatCode::Apply() const
}
break;
case InstructionCode::ExtTempVariable: // 51
case InstructionCode::ExtCheatRegisters: // 51
{
const u32 poke_value = inst.address;
const u8 temp_variable_number1 = Truncate8(inst.value32 & 0xFFu);
const u8 temp_variable_number2 = Truncate8((inst.value32 & 0xFF00u) >> 8);
const u8 sub_type = Truncate8((inst.value32 & 0xFF0000u) >> 16);
const u32 poke_value = inst.value32;
const u8 cht_reg_no1 = Truncate8(inst.address & 0xFFu);
const u8 cht_reg_no2 = Truncate8((inst.address & 0xFF00u) >> 8);
const u8 cht_reg_no3 = Truncate8(inst.value32 & 0xFFu);
const u8 sub_type = Truncate8((inst.address & 0xFF0000u) >> 16);
switch (sub_type)
{
case 0x00: // Write the u8 from temp_variable[temp_variable_number1] to address
DoMemoryWrite<u8>(inst.address, Truncate8(temp_variable[temp_variable_number1]));
index++;
case 0x00: // Write the u8 from cht_register[cht_reg_no1] to address
DoMemoryWrite<u8>(inst.value32, Truncate8(cht_register[cht_reg_no1]) & 0xFFu);
break;
case 0x01: // Read the u8 from address to temp_variable[temp_variable_number1]
temp_variable[temp_variable_number1] = DoMemoryRead<u8>(inst.address);
index++;
case 0x01: // Read the u8 from address to cht_register[cht_reg_no1]
cht_register[cht_reg_no1] = DoMemoryRead<u8>(inst.value32);
break;
case 0x02: // Write the u8 from address field to the address stored in temp_variable[temp_variable_number1]
DoMemoryWrite<u8>(temp_variable[temp_variable_number1], Truncate8(poke_value));
index++;
case 0x02: // Write the u8 from address field to the address stored in cht_register[cht_reg_no1]
DoMemoryWrite<u8>(cht_register[cht_reg_no1], Truncate8(poke_value & 0xFFu));
break;
case 0x03: // Write the u8 from cht_register[cht_reg_no2] to cht_register[cht_reg_no1]
// and add the u8 from the address field to it
cht_register[cht_reg_no1] = Truncate8(cht_register[cht_reg_no2] & 0xFFu) + Truncate8(poke_value & 0xFFu);
break;
case 0x04: // Write the u8 from the value stored in cht_register[cht_reg_no2] + poke_value to the address
// stored in cht_register[cht_reg_no1]
DoMemoryWrite<u8>(cht_register[cht_reg_no1],
Truncate8(cht_register[cht_reg_no2] & 0xFFu) + Truncate8(poke_value & 0xFFu));
break;
case 0x05: // Write the u8 poke value to cht_register[cht_reg_no1]
cht_register[cht_reg_no1] = Truncate8(poke_value & 0xFFu);
break;
case 0x10: // Write the u16 from temp_variable[temp_variable_number1] to address
DoMemoryWrite<u16>(inst.address, Truncate16(temp_variable[temp_variable_number1]));
index++;
case 0x40: // Write the u16 from cht_register[cht_reg_no1] to address
DoMemoryWrite<u16>(inst.value32, Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x11: // Read the u16 from address to temp_variable[temp_variable_number1]
temp_variable[temp_variable_number1] = DoMemoryRead<u16>(inst.address);
index++;
case 0x41: // Read the u16 from address to cht_register[cht_reg_no1]
cht_register[cht_reg_no1] = DoMemoryRead<u16>(inst.value32);
break;
case 0x12: // Write the u16 from address field to the address stored in temp_variable[temp_variable_number1]
DoMemoryWrite<u16>(temp_variable[temp_variable_number1], Truncate16(poke_value));
index++;
case 0x42: // Write the u16 from address field to the address stored in cht_register[cht_reg_no1]
DoMemoryWrite<u16>(cht_register[cht_reg_no1], Truncate16(poke_value & 0xFFFFu));
break;
case 0x43: // Write the u16 from cht_register[cht_reg_no2] to cht_register[cht_reg_no1]
// and add the u16 from the address field to it
cht_register[cht_reg_no1] = Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) + Truncate16(poke_value & 0xFFFFu);
break;
case 0x44: // Write the u16 from the value stored in cht_register[cht_reg_no2] + poke_value to the address
// stored in cht_register[cht_reg_no1]
DoMemoryWrite<u16>(cht_register[cht_reg_no1],
Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) + Truncate16(poke_value & 0xFFFFu));
break;
case 0x45: // Write the u16 poke value to cht_register[cht_reg_no1]
cht_register[cht_reg_no1] = Truncate16(poke_value & 0xFFFFu);
break;
case 0x30: // Write the u32 from temp_variable[temp_variable_number1] to address
DoMemoryWrite<u32>(inst.address, temp_variable[temp_variable_number1]);
index++;
case 0x80: // Write the u32 from cht_register[cht_reg_no1] to address
DoMemoryWrite<u32>(inst.value32, cht_register[cht_reg_no1]);
break;
case 0x31: // Read the u32 from address to temp_variable[temp_variable_number1]
temp_variable[temp_variable_number1] = DoMemoryRead<u32>(inst.address);
index++;
case 0x81: // Read the u32 from address to cht_register[cht_reg_no1]
cht_register[cht_reg_no1] = DoMemoryRead<u32>(inst.value32);
break;
case 0x32: // Write the u16 from address field to the address stored in temp_variable[temp_variable_number]
DoMemoryWrite<u32>(temp_variable[temp_variable_number1], poke_value);
index++;
case 0x82: // Write the u32 from address field to the address stored in cht_register[cht_reg_no]
DoMemoryWrite<u32>(cht_register[cht_reg_no1], poke_value);
break;
case 0x83: // Write the u32 from cht_register[cht_reg_no2] to cht_register[cht_reg_no1]
// and add the u32 from the address field to it
cht_register[cht_reg_no1] = cht_register[cht_reg_no2] + poke_value;
break;
case 0x84: // Write the u32 from the value stored in cht_register[cht_reg_no2] + poke_value to the address
// stored in cht_register[cht_reg_no1]
DoMemoryWrite<u32>(cht_register[cht_reg_no1], cht_register[cht_reg_no2] + poke_value);
break;
case 0x85: // Write the u32 poke value to cht_register[cht_reg_no1]
cht_register[cht_reg_no1] = poke_value;
break;
case 0x04: // Write the u8 from temp_variable[temp_variable_number2] to the address stored in
// temp_variable[temp_variable_number1]
DoMemoryWrite<u8>(temp_variable[temp_variable_number1], Truncate8(temp_variable[temp_variable_number2]));
index++;
case 0xC0: // Reg3 = Reg2 + Reg1
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] + cht_register[cht_reg_no1];
break;
case 0x14: // Write the u16 from temp_variable[temp_variable_number2] to the address stored in
// temp_variable[temp_variable_number1]
DoMemoryWrite<u16>(temp_variable[temp_variable_number1], Truncate16(temp_variable[temp_variable_number2]));
index++;
case 0xC1: // Reg3 = Reg2 - Reg1
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] - cht_register[cht_reg_no1];
break;
case 0x24: // Write the u32 from temp_variable[temp_variable_number2] to the address stored in
// temp_variable[temp_variable_number1]
DoMemoryWrite<u32>(temp_variable[temp_variable_number1], temp_variable[temp_variable_number2]);
index++;
case 0xC2: // Reg3 = Reg2 * Reg1
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] * cht_register[cht_reg_no1];
break;
case 0x34: // Write the u16 from address field to the address stored in temp_variable[temp_variable_number]
DoMemoryWrite<u32>(temp_variable[temp_variable_number1], poke_value);
index++;
case 0xC3: // Reg3 = Reg2 / Reg1 with DIV0 handling
if (cht_register[cht_reg_no1] == 0)
cht_register[cht_reg_no3] = 0;
else
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] / cht_register[cht_reg_no1];
break;
case 0x05: // Write the u8 from the address stored in temp_variable[temp_variable_number2] to the address
// stored in temp_variable[temp_variable_number1]
DoMemoryWrite<u8>(temp_variable[temp_variable_number1],
DoMemoryRead<u8>(temp_variable[temp_variable_number2]));
index++;
case 0xC4: // Reg3 = Reg2 % Reg1 (with DIV0 handling)
if (cht_register[cht_reg_no1] == 0)
cht_register[cht_reg_no3] = cht_register[cht_reg_no2];
else
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] % cht_register[cht_reg_no1];
break;
case 0x15: // Write the u16 from the address stored in temp_variable[temp_variable_number2] to the address
// stored in temp_variable[temp_variable_number1]
DoMemoryWrite<u16>(temp_variable[temp_variable_number1],
DoMemoryRead<u16>(temp_variable[temp_variable_number2]));
index++;
case 0xC5: // Reg3 = Reg2 & Reg1
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] & cht_register[cht_reg_no1];
break;
case 0x25: // Write the u32 from the address stored in temp_variable[temp_variable_number2] to the address
// stored in temp_variable[temp_variable_number1]
DoMemoryWrite<u32>(temp_variable[temp_variable_number1],
DoMemoryRead<u32>(temp_variable[temp_variable_number2]));
index++;
case 0xC6: // Reg3 = Reg2 | Reg1
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] | cht_register[cht_reg_no1];
break;
case 0xC7: // Reg3 = Reg2 ^ Reg1
cht_register[cht_reg_no3] = cht_register[cht_reg_no2] ^ cht_register[cht_reg_no1];
break;
case 0xC8: // Reg3 = ~Reg1
cht_register[cht_reg_no3] = ~cht_register[cht_reg_no1];
break;
case 0xC9: // Reg3 = Reg1 << X
cht_register[cht_reg_no3] = cht_register[cht_reg_no1] << cht_reg_no2;
break;
case 0xCA: // Reg3 = Reg1 >> X
cht_register[cht_reg_no3] = cht_register[cht_reg_no1] >> cht_reg_no2;
break;
// Lots of options exist for expanding into this space
default:
index++;
break;
}
index++;
}
break;
@ -1632,7 +1673,7 @@ void CheatCode::Apply() const
index++;
bool activate_codes;
const u32 frame_compare_value = inst.address & 0xFFFFu;
const u8 temp_variable_number = Truncate8((inst.value32 & 0xFF000000u)>>24);
const u8 cht_reg_no = Truncate8((inst.value32 & 0xFF000000u)>>24);
const bool bit_comparison_type = ((inst.address & 0x100000u) >>20);
const u8 frame_comparison = Truncate8((inst.address & 0xF0000u) >>16);
const u32 check_value = (inst.value32 & 0xFFFFFFu);
@ -1643,23 +1684,23 @@ void CheatCode::Apply() const
if ((bit_comparison_type==false && check_value==(value & check_value))//Check Bits are set
|| (bit_comparison_type==true && check_value!=(value & check_value))) //Check Bits are clear
{
temp_variable[temp_variable_number]+=1;
cht_register[cht_reg_no]+=1;
switch (frame_comparison)
{
case 0x0: // No comparison on frame count, just do it
activate_codes = true;
break;
case 0x1: // Check if frame_compare_value == current count
activate_codes = (temp_variable[temp_variable_number] == frame_compare_value);
activate_codes = (cht_register[cht_reg_no] == frame_compare_value);
break;
case 0x2: // Check if frame_compare_value < current count
activate_codes = (temp_variable[temp_variable_number] < frame_compare_value);
activate_codes = (cht_register[cht_reg_no] < frame_compare_value);
break;
case 0x3: // Check if frame_compare_value > current count
activate_codes = (temp_variable[temp_variable_number] > frame_compare_value);
activate_codes = (cht_register[cht_reg_no] > frame_compare_value);
break;
case 0x4: // Check if frame_compare_value != current count
activate_codes = (temp_variable[temp_variable_number] != frame_compare_value);
activate_codes = (cht_register[cht_reg_no] != frame_compare_value);
break;
default:
activate_codes = false;
@ -1668,7 +1709,7 @@ void CheatCode::Apply() const
}
else
{
temp_variable[temp_variable_number]=0;
cht_register[cht_reg_no]=0;
activate_codes = false;
}
@ -1690,6 +1731,498 @@ void CheatCode::Apply() const
}
break;
case InstructionCode::ExtCheatRegistersCompare: // 52
{
index++;
bool activate_codes = false;
const u8 cht_reg_no1 = Truncate8(inst.address & 0xFFu);
const u8 cht_reg_no2 = Truncate8((inst.address & 0xFF00u) >> 8);
const u8 sub_type = Truncate8((inst.value32 & 0xFF0000u) >> 16);
switch (sub_type)
{
case 0x00:
activate_codes =
(Truncate8(cht_register[cht_reg_no2] & 0xFFu) == Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x01:
activate_codes =
(Truncate8(cht_register[cht_reg_no2] & 0xFFu) != Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x02:
activate_codes =
(Truncate8(cht_register[cht_reg_no2] & 0xFFu) > Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x03:
activate_codes =
(Truncate8(cht_register[cht_reg_no2] & 0xFFu) >= Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x04:
activate_codes =
(Truncate8(cht_register[cht_reg_no2] & 0xFFu) < Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x05:
activate_codes =
(Truncate8(cht_register[cht_reg_no2] & 0xFFu) <= Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x06:
activate_codes =
((Truncate8(cht_register[cht_reg_no2] & 0xFFu) & Truncate8(cht_register[cht_reg_no1] & 0xFFu)) ==
(Truncate8(cht_register[cht_reg_no1] & 0xFFu)));
break;
case 0x07:
activate_codes =
((Truncate8(cht_register[cht_reg_no2] & 0xFFu) & Truncate8(cht_register[cht_reg_no1] & 0xFFu)) !=
(Truncate8(cht_register[cht_reg_no1] & 0xFFu)));
break;
case 0x0A:
activate_codes =
((Truncate8(cht_register[cht_reg_no2] & 0xFFu) & Truncate8(cht_register[cht_reg_no1] & 0xFFu)) ==
(Truncate8(cht_register[cht_reg_no2] & 0xFFu)));
break;
case 0x0B:
activate_codes =
((Truncate8(cht_register[cht_reg_no2] & 0xFFu) & Truncate8(cht_register[cht_reg_no1] & 0xFFu)) !=
(Truncate8(cht_register[cht_reg_no2] & 0xFFu)));
break;
case 0x10:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) == inst.value8);
break;
case 0x11:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) != inst.value8);
break;
case 0x12:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) > inst.value8);
break;
case 0x13:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) >= inst.value8);
break;
case 0x14:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) < inst.value8);
break;
case 0x15:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) <= inst.value8);
break;
case 0x16:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & inst.value8) == inst.value8);
break;
case 0x17:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & inst.value8) != inst.value8);
break;
case 0x18:
activate_codes =
((Truncate8(cht_register[cht_reg_no1] & 0xFFu) > inst.value8) &&
(Truncate8(cht_register[cht_reg_no1] & 0xFFu) < Truncate8((inst.value32 & 0xFF0000u) >> 16)));
break;
case 0x19:
activate_codes =
((Truncate8(cht_register[cht_reg_no1] & 0xFFu) >= inst.value8) &&
(Truncate8(cht_register[cht_reg_no1] & 0xFFu) <= Truncate8((inst.value32 & 0xFF0000u) >> 16)));
break;
case 0x1A:
activate_codes = ((Truncate8(cht_register[cht_reg_no2] & 0xFFu) & inst.value8) ==
Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x1B:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & inst.value8) !=
Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x20:
activate_codes =
(DoMemoryRead<u8>(cht_register[cht_reg_no2]) == DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x21:
activate_codes =
(DoMemoryRead<u8>(cht_register[cht_reg_no2]) != DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x22:
activate_codes =
(DoMemoryRead<u8>(cht_register[cht_reg_no2]) > DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x23:
activate_codes =
(DoMemoryRead<u8>(cht_register[cht_reg_no2]) >= DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x24:
activate_codes =
(DoMemoryRead<u8>(cht_register[cht_reg_no2]) < DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x25:
activate_codes =
(DoMemoryRead<u8>(cht_register[cht_reg_no2]) <= DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x26:
activate_codes = ((DoMemoryRead<u8>(cht_register[cht_reg_no1]) & inst.value8) == inst.value8);
break;
case 0x27:
activate_codes = ((DoMemoryRead<u8>(cht_register[cht_reg_no1]) & inst.value8) != inst.value8);
break;
case 0x28:
activate_codes =
((DoMemoryRead<u8>(cht_register[cht_reg_no1]) > inst.value8) &&
(DoMemoryRead<u8>(cht_register[cht_reg_no1]) < Truncate8((inst.value32 & 0xFF0000u) >> 16)));
break;
case 0x29:
activate_codes =
((DoMemoryRead<u8>(cht_register[cht_reg_no1]) >= inst.value8) &&
(DoMemoryRead<u8>(cht_register[cht_reg_no1]) <= Truncate8((inst.value32 & 0xFF0000u) >> 16)));
break;
case 0x2A:
activate_codes = ((DoMemoryRead<u8>(cht_register[cht_reg_no1]) & inst.value8) ==
DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x2B:
activate_codes = ((DoMemoryRead<u8>(cht_register[cht_reg_no1]) & inst.value8) !=
DoMemoryRead<u8>(cht_register[cht_reg_no1]));
break;
case 0x30:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) == DoMemoryRead<u8>(inst.value32));
break;
case 0x31:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) != DoMemoryRead<u8>(inst.value32));
break;
case 0x32:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) > DoMemoryRead<u8>(inst.value32));
break;
case 0x33:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) >= DoMemoryRead<u8>(inst.value32));
break;
case 0x34:
activate_codes = (Truncate8(cht_register[cht_reg_no1] & 0xFFu) < DoMemoryRead<u8>(inst.value32));
break;
case 0x36:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & DoMemoryRead<u8>(inst.value32)) ==
DoMemoryRead<u8>(inst.value32));
break;
case 0x37:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & DoMemoryRead<u8>(inst.value32)) !=
DoMemoryRead<u8>(inst.value32));
break;
case 0x3A:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & DoMemoryRead<u8>(inst.value32)) ==
Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x3B:
activate_codes = ((Truncate8(cht_register[cht_reg_no1] & 0xFFu) & DoMemoryRead<u8>(inst.value32)) !=
Truncate8(cht_register[cht_reg_no1] & 0xFFu));
break;
case 0x40:
activate_codes =
(Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) == Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x41:
activate_codes =
(Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) != Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x42:
activate_codes =
(Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) > Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x43:
activate_codes =
(Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) >= Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x44:
activate_codes =
(Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) < Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x45:
activate_codes =
(Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) <= Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x46:
activate_codes =
((Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) & Truncate16(cht_register[cht_reg_no1] & 0xFFFFu)) ==
Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x47:
activate_codes =
((Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) & Truncate16(cht_register[cht_reg_no1] & 0xFFFFu)) !=
Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x4A:
activate_codes =
((Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) & Truncate16(cht_register[cht_reg_no1] & 0xFFFFu)) ==
Truncate16(cht_register[cht_reg_no2] & 0xFFFFu));
break;
case 0x4B:
activate_codes =
((Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) & Truncate16(cht_register[cht_reg_no1] & 0xFFFFu)) !=
Truncate16(cht_register[cht_reg_no2] & 0xFFFFu));
break;
case 0x50:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) == inst.value16);
break;
case 0x51:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) != inst.value16);
break;
case 0x52:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) > inst.value16);
break;
case 0x53:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) >= inst.value16);
break;
case 0x54:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) < inst.value16);
break;
case 0x55:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) <= inst.value16);
break;
case 0x56:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & inst.value16) == inst.value16);
break;
case 0x57:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & inst.value16) != inst.value16);
break;
case 0x58:
activate_codes =
((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) > inst.value16) &&
(Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) < Truncate16((inst.value32 & 0xFFFF0000u) >> 16)));
break;
case 0x59:
activate_codes =
((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) >= inst.value16) &&
(Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) <= Truncate16((inst.value32 & 0xFFFF0000u) >> 16)));
break;
case 0x5A:
activate_codes = ((Truncate16(cht_register[cht_reg_no2] & 0xFFFFu) & inst.value16) ==
Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x5B:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & inst.value16) !=
Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x60:
activate_codes =
(DoMemoryRead<u16>(cht_register[cht_reg_no2]) == DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x61:
activate_codes =
(DoMemoryRead<u16>(cht_register[cht_reg_no2]) != DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x62:
activate_codes =
(DoMemoryRead<u16>(cht_register[cht_reg_no2]) > DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x63:
activate_codes =
(DoMemoryRead<u16>(cht_register[cht_reg_no2]) >= DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x64:
activate_codes =
(DoMemoryRead<u16>(cht_register[cht_reg_no2]) < DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x65:
activate_codes =
(DoMemoryRead<u16>(cht_register[cht_reg_no2]) <= DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x66:
activate_codes = ((DoMemoryRead<u16>(cht_register[cht_reg_no1]) & inst.value16) == inst.value16);
break;
case 0x67:
activate_codes = ((DoMemoryRead<u16>(cht_register[cht_reg_no1]) & inst.value16) != inst.value16);
break;
case 0x68:
activate_codes =
((DoMemoryRead<u16>(cht_register[cht_reg_no1]) > inst.value16) &&
(DoMemoryRead<u16>(cht_register[cht_reg_no1]) < Truncate16((inst.value32 & 0xFFFF0000u) >> 16)));
break;
case 0x69:
activate_codes =
((DoMemoryRead<u16>(cht_register[cht_reg_no1]) >= inst.value16) &&
(DoMemoryRead<u16>(cht_register[cht_reg_no1]) <= Truncate16((inst.value32 & 0xFFFF0000u) >> 16)));
break;
case 0x6A:
activate_codes = ((DoMemoryRead<u16>(cht_register[cht_reg_no1]) & inst.value16) ==
DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x6B:
activate_codes = ((DoMemoryRead<u16>(cht_register[cht_reg_no1]) & inst.value16) !=
DoMemoryRead<u16>(cht_register[cht_reg_no1]));
break;
case 0x70:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) == DoMemoryRead<u16>(inst.value32));
break;
case 0x71:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) != DoMemoryRead<u16>(inst.value32));
break;
case 0x72:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) > DoMemoryRead<u16>(inst.value32));
break;
case 0x73:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) >= DoMemoryRead<u16>(inst.value32));
break;
case 0x74:
activate_codes = (Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) < DoMemoryRead<u16>(inst.value32));
break;
case 0x76:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & DoMemoryRead<u16>(inst.value32)) ==
DoMemoryRead<u16>(inst.value32));
break;
case 0x77:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & DoMemoryRead<u16>(inst.value32)) !=
DoMemoryRead<u16>(inst.value32));
break;
case 0x7A:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & DoMemoryRead<u16>(inst.value32)) ==
Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x7B:
activate_codes = ((Truncate16(cht_register[cht_reg_no1] & 0xFFFFu) & DoMemoryRead<u16>(inst.value32)) !=
Truncate16(cht_register[cht_reg_no1] & 0xFFFFu));
break;
case 0x80:
activate_codes = (cht_register[cht_reg_no2] == cht_register[cht_reg_no1]);
break;
case 0x81:
activate_codes = (cht_register[cht_reg_no2] != cht_register[cht_reg_no1]);
break;
case 0x82:
activate_codes = (cht_register[cht_reg_no2] > cht_register[cht_reg_no1]);
break;
case 0x83:
activate_codes = (cht_register[cht_reg_no2] >= cht_register[cht_reg_no1]);
break;
case 0x84:
activate_codes = (cht_register[cht_reg_no2] < cht_register[cht_reg_no1]);
break;
case 0x85:
activate_codes = (cht_register[cht_reg_no2] <= cht_register[cht_reg_no1]);
break;
case 0x86:
activate_codes = ((cht_register[cht_reg_no2] & cht_register[cht_reg_no1]) == cht_register[cht_reg_no1]);
break;
case 0x87:
activate_codes = ((cht_register[cht_reg_no2] & cht_register[cht_reg_no1]) != cht_register[cht_reg_no1]);
break;
case 0x8A:
activate_codes = ((cht_register[cht_reg_no2] & cht_register[cht_reg_no1]) == cht_register[cht_reg_no2]);
break;
case 0x8B:
activate_codes = ((cht_register[cht_reg_no2] & cht_register[cht_reg_no1]) != cht_register[cht_reg_no2]);
break;
case 0x90:
activate_codes = (cht_register[cht_reg_no1] == inst.value32);
break;
case 0x91:
activate_codes = (cht_register[cht_reg_no1] != inst.value32);
break;
case 0x92:
activate_codes = (cht_register[cht_reg_no1] > inst.value32);
break;
case 0x93:
activate_codes = (cht_register[cht_reg_no1] >= inst.value32);
break;
case 0x94:
activate_codes = (cht_register[cht_reg_no1] < inst.value32);
break;
case 0x95:
activate_codes = (cht_register[cht_reg_no1] <= inst.value32);
break;
case 0x96:
activate_codes = ((cht_register[cht_reg_no1] & inst.value32) == inst.value32);
break;
case 0x97:
activate_codes = ((cht_register[cht_reg_no1] & inst.value32) != inst.value32);
break;
case 0x9A:
activate_codes = ((cht_register[cht_reg_no2] & inst.value32) == cht_register[cht_reg_no1]);
break;
case 0x9B:
activate_codes = ((cht_register[cht_reg_no1] & inst.value32) != cht_register[cht_reg_no1]);
break;
case 0xA0:
activate_codes =
(DoMemoryRead<u32>(cht_register[cht_reg_no2]) == DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xA1:
activate_codes =
(DoMemoryRead<u32>(cht_register[cht_reg_no2]) != DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xA2:
activate_codes =
(DoMemoryRead<u32>(cht_register[cht_reg_no2]) > DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xA3:
activate_codes =
(DoMemoryRead<u32>(cht_register[cht_reg_no2]) >= DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xA4:
activate_codes =
(DoMemoryRead<u32>(cht_register[cht_reg_no2]) < DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xA5:
activate_codes =
(DoMemoryRead<u32>(cht_register[cht_reg_no2]) <= DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xA6:
activate_codes = ((DoMemoryRead<u32>(cht_register[cht_reg_no1]) & inst.value32) == inst.value32);
break;
case 0xA7:
activate_codes = ((DoMemoryRead<u32>(cht_register[cht_reg_no1]) & inst.value32) != inst.value32);
break;
case 0xAA:
activate_codes = ((DoMemoryRead<u32>(cht_register[cht_reg_no1]) & inst.value32) ==
DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xAB:
activate_codes = ((DoMemoryRead<u32>(cht_register[cht_reg_no1]) & inst.value32) !=
DoMemoryRead<u32>(cht_register[cht_reg_no1]));
break;
case 0xB0:
activate_codes = (cht_register[cht_reg_no1] == DoMemoryRead<u32>(inst.value32));
break;
case 0xB1:
activate_codes = (cht_register[cht_reg_no1] != DoMemoryRead<u32>(inst.value32));
break;
case 0xB2:
activate_codes = (cht_register[cht_reg_no1] > DoMemoryRead<u32>(inst.value32));
break;
case 0xB3:
activate_codes = (cht_register[cht_reg_no1] >= DoMemoryRead<u32>(inst.value32));
break;
case 0xB4:
activate_codes = (cht_register[cht_reg_no1] < DoMemoryRead<u32>(inst.value32));
break;
case 0xB6:
activate_codes =
((cht_register[cht_reg_no1] & DoMemoryRead<u32>(inst.value32)) == DoMemoryRead<u32>(inst.value32));
break;
case 0xB7:
activate_codes =
((cht_register[cht_reg_no1] & DoMemoryRead<u32>(inst.value32)) != DoMemoryRead<u32>(inst.value32));
break;
case 0xBA:
activate_codes =
((cht_register[cht_reg_no1] & DoMemoryRead<u32>(inst.value32)) == cht_register[cht_reg_no1]);
break;
case 0xBB:
activate_codes =
((cht_register[cht_reg_no1] & DoMemoryRead<u32>(inst.value32)) != cht_register[cht_reg_no1]);
break;
default:
activate_codes = false;
break;
}
if (activate_codes)
{
// execute following instructions
continue;
}
// skip to the next separator (00000000 FFFF), or end
constexpr u64 separator_value = UINT64_C(0x000000000000FFFF);
while (index < count)
{
// we don't want to execute the separator instruction
const u64 bits = instructions[index++].bits;
if (bits == separator_value)
break;
}
}
break;
case InstructionCode::DelayActivation: // C1
{
// A value of around 4000 or 5000 will usually give you a good 20-30 second delay before codes are activated.
@ -1745,6 +2278,80 @@ void CheatCode::Apply() const
}
break;
case InstructionCode::ExtImprovedSlide:
{
if ((index + 1) >= instructions.size())
{
Log_ErrorPrintf("Incomplete slide instruction");
return;
}
const u32 slide_count = inst.first & 0xFFFFu;
const u32 address_change = (inst.second >> 16) & 0xFFFFu;
const u16 value_change = Truncate16(inst.second);
const Instruction& inst2 = instructions[index + 1];
const InstructionCode write_type = inst2.code;
const bool address_change_negative = (inst.first >> 20) & 0x1u;
const bool value_change_negative = (inst.first >> 16) & 0x1u;
u32 address = inst2.address;
u32 value = inst2.value32;
if (write_type == InstructionCode::ConstantWrite8)
{
for (u32 i = 0; i < slide_count; i++)
{
DoMemoryWrite<u8>(address, Truncate8(value));
if (address_change_negative)
address -= address_change;
else
address += address_change;
if (value_change_negative)
value -= value_change;
else
value += value_change;
}
}
else if (write_type == InstructionCode::ConstantWrite16)
{
for (u32 i = 0; i < slide_count; i++)
{
DoMemoryWrite<u16>(address, Truncate16(value));
if (address_change_negative)
address -= address_change;
else
address += address_change;
if (value_change_negative)
value -= value_change;
else
value += value_change;
}
}
else if (write_type == InstructionCode::ExtConstantWrite32)
{
for (u32 i = 0; i < slide_count; i++)
{
DoMemoryWrite<u32>(address, value);
if (address_change_negative)
address -= address_change;
else
address += address_change;
if (value_change_negative)
value -= value_change;
else
value += value_change;
}
}
else
{
Log_ErrorPrintf("Invalid command in second slide parameter 0x%02X", static_cast<unsigned>(write_type));
}
index += 2;
}
break;
case InstructionCode::MemoryCopy:
{
if ((index + 1) >= instructions.size())
@ -1811,14 +2418,16 @@ void CheatCode::ApplyOnDisable() const
case InstructionCode::ExtConstantForceRange8:
case InstructionCode::ExtConstantForceRangeLimits16:
case InstructionCode::ExtConstantForceRangeRollRound16:
case InstructionCode::ExtConstantSwap16:
case InstructionCode::DelayActivation: // C1
case InstructionCode::ExtConstantWriteIfMatch16:
case InstructionCode::ExtTempVariable:
case InstructionCode::ExtCheatRegisters:
index++;
break;
case InstructionCode::ExtConstantForceRange16:
case InstructionCode::Slide:
case InstructionCode::ExtImprovedSlide:
case InstructionCode::MemoryCopy:
index += 2;
break;
@ -1852,6 +2461,7 @@ void CheatCode::ApplyOnDisable() const
case InstructionCode::ExtSkipIfNotGreater8: // C4
case InstructionCode::ExtSkipIfNotLess16: // C5
case InstructionCode::ExtSkipIfNotGreater16: // C6
case InstructionCode::ExtCheatRegistersCompare: // 52
index++;
break;

6
src/core/cheats.h
View file

@ -45,6 +45,7 @@ struct CheatCode
CompareGreater8 = 0xE3,
Slide = 0x50,
MemoryCopy = 0xC2,
ExtImprovedSlide = 0x53,
// Extension opcodes, not present on original GameShark.
ExtConstantWrite32 = 0x90,
@ -63,6 +64,8 @@ struct CheatCode
ExtConstantForceRangeRollRound16 = 0xF2,
ExtConstantForceRange16 = 0xF3,
ExtFindAndReplace = 0xF4,
ExtConstantSwap16 = 0xF5,
ExtConstantBitSet8 = 0x31,
ExtConstantBitClear8 = 0x32,
ExtConstantBitSet16 = 0x81,
@ -76,7 +79,8 @@ struct CheatCode
ExtSkipIfNotLess16 = 0xC5,
ExtSkipIfNotGreater16 = 0xC6,
ExtTempVariable = 0x51,
ExtCheatRegisters = 0x51,
ExtCheatRegistersCompare = 0x52,
};
union Instruction