Method Validate

pcsx2/DebugTools/MipsAssembler.cpp:613–664

}

bool CMipsInstruction::Validate()
{
	if (RamPos % 4)
	{
		Logger::queueError(Logger::Error,L"opcode not aligned to word boundary");
		return false;
	}

	// check immediates
	if (immediateType != MIPS_NOIMMEDIATE)
	{
		immediate.originalValue = immediate.value;

		if (Opcode.flags & MO_IMMALIGNED)	// immediate must be aligned
		{
			if (immediate.value % 4)
			{
				Logger::queueError(Logger::Error,L"Immediate must be word aligned",immediate.value);
				return false;
			}
		}

		if (Opcode.flags & MO_IPCA)	// absolute value >> 2)
		{
			immediate.value = (immediate.value >> 2) & 0x3FFFFFF;
		} else if (Opcode.flags & MO_IPCR)	// relative 16 bit value
		{
			const int num = (immediate.value-RamPos-4) >> 2;

			if (num > std::numeric_limits<short>::max() || num < std::numeric_limits<short>::min())
			{
				Logger::queueError(Logger::Error,L"Branch target %08X out of range",immediate.value);
				return false;
			}
			immediate.value = num;
		}

		int immediateBits = getImmediateBits(immediateType);
		unsigned int mask = (0xFFFFFFFF << (32-immediateBits)) >> (32-immediateBits);
		int digits = (immediateBits+3) / 4;

		if ((unsigned int)std::abs(immediate.value) > mask)
		{
			Logger::queueError(Logger::Error,L"Immediate value %0*X out of range",digits,immediate.value);
			return false;
		}

		immediate.value &= mask;
	}

	return true;
}

void CMipsInstruction::encodeNormal()
{