Method handle_extended_t

pcsx2/Patch.cpp:1225–1705

template <typename Memory>
	requires std::is_base_of_v<MemoryInterface, Memory>
void Patch::handle_extended_t(const PatchCommand* p, Memory& memory, ExtendedState& state)
{
	if (state.skip_count > 0)
	{
		state.skip_count--;
	}
	else
		switch (state.prev_cheat_type)
		{
			case 0x3040: // vvvvvvvv 00000000 Inc
			{
				u32 mem = memory.Read32(state.prev_cheat_addr);
				memory.Write32(state.prev_cheat_addr, mem + (p->addr));
				state.prev_cheat_type = 0;
				break;
			}

			case 0x3050: // vvvvvvvv 00000000 Dec
			{
				u32 mem = memory.Read32(state.prev_cheat_addr);
				memory.Write32(state.prev_cheat_addr, mem - (p->addr));
				state.prev_cheat_type = 0;
				break;
			}

			case 0x4000: // vvvvvvvv iiiiiiii
				for (u32 i = 0; i < state.iteration_count; i++)
				{
					memory.IdempotentWrite32((u32)(state.prev_cheat_addr + (i * state.iteration_increment)), (u32)(p->addr + ((u32)p->data * i)));
				}
				state.prev_cheat_type = 0;
				break;

			case 0x5000: // bbbbbbbb 00000000
				for (u32 i = 0; i < state.iteration_count; i++)
				{
					u8 mem = memory.Read8(state.prev_cheat_addr + i);
					memory.IdempotentWrite8((p->addr + i) & 0x0FFFFFFF, mem);
				}
				state.prev_cheat_type = 0;
				break;

			case 0x6000: // 000Xnnnn iiiiiiii
			{
				state.null_pointer_encountered = false;

				// Get Number of pointers
				if (((u32)p->addr & 0x0000FFFF) == 0)
					state.iteration_count = 1;
				else
					state.iteration_count = (u32)p->addr & 0x0000FFFF;

				// Read first pointer
				state.last_type = ((u32)p->addr & 0x000F0000) >> 16;
				u32 mem = memory.Read32(state.prev_cheat_addr);
				if (((mem & 0x0FFFFFFF) & 0x3FFFFFFC) == 0)
					state.null_pointer_encountered = true;