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#include "tst_machine.h"
#include "alu.h"
#include "qtmipsexception.h"
void MachineTests::alu_data() {
QTest::addColumn<std::uint8_t>("op");
QTest::addColumn<std::uint32_t>("s");
QTest::addColumn<std::uint32_t>("t");
QTest::addColumn<std::uint8_t>("sa");
QTest::addColumn<std::uint32_t>("res");
// TODO SLL-SRAV
QTest::newRow("ADD") << (std::uint8_t)ALU_OP_ADD \
<< (std::uint32_t)24 \
<< (std::uint32_t)66 \
<< (std::uint8_t)0 \
<< (std::uint32_t)90;
QTest::newRow("ADDU") << (std::uint8_t)ALU_OP_ADDU \
<< (std::uint32_t)24 \
<< (std::uint32_t)66 \
<< (std::uint8_t)0 \
<< (std::uint32_t)90;
QTest::newRow("SUB") << (std::uint8_t)ALU_OP_SUB \
<< (std::uint32_t)66 \
<< (std::uint32_t)24 \
<< (std::uint8_t)0 \
<< (std::uint32_t)42;
QTest::newRow("SUBU") << (std::uint8_t)ALU_OP_SUBU \
<< (std::uint32_t)24 \
<< (std::uint32_t)66 \
<< (std::uint8_t)0 \
<< (std::uint32_t)-42;
QTest::newRow("AND") << (std::uint8_t)ALU_OP_AND \
<< (std::uint32_t)0xA81 \
<< (std::uint32_t)0x603 \
<< (std::uint8_t)0 \
<< (std::uint32_t)0x201;
QTest::newRow("OR") << (std::uint8_t)ALU_OP_OR \
<< (std::uint32_t)0xA81 \
<< (std::uint32_t)0x603 \
<< (std::uint8_t)0 \
<< (std::uint32_t)0xE83;
QTest::newRow("XOR") << (std::uint8_t)ALU_OP_XOR \
<< (std::uint32_t)0xA81 \
<< (std::uint32_t)0x603 \
<< (std::uint8_t)0 \
<< (std::uint32_t)0xC82;
QTest::newRow("NOR") << (std::uint8_t)ALU_OP_NOR \
<< (std::uint32_t)0xA81 \
<< (std::uint32_t)0x603 \
<< (std::uint8_t)0 \
<< (std::uint32_t)0xFFFFF17C;
// TODO SLT-SLTU
}
void MachineTests::alu() {
QFETCH(std::uint8_t, op);
QFETCH(std::uint32_t, s);
QFETCH(std::uint32_t, t);
QFETCH(std::uint8_t, sa);
QFETCH(std::uint32_t, res);
QCOMPARE(alu_operate((enum AluOp)op, s , t, sa), res);
}
void MachineTests::alu_except_data() {
QTest::addColumn<std::uint8_t>("op");
QTest::addColumn<std::uint32_t>("s");
QTest::addColumn<std::uint32_t>("t");
// Note no sa as shift unstruction has no exceptions
QTest::newRow("ADD") << (std::uint8_t)ALU_OP_ADD \
<< (std::uint32_t)0x8fffffff \
<< (std::uint32_t)0x90000000;
QTest::newRow("SUB") << (std::uint8_t)ALU_OP_SUB \
<< (std::uint32_t)3 \
<< (std::uint32_t)4;
// Just test that we can throw unsupported ALU operation
QTest::newRow("?") << (std::uint8_t)ALU_OP_LAST \
<< (std::uint32_t)0 \
<< (std::uint32_t)0;
}
void MachineTests::alu_except() {
QFETCH(std::uint8_t, op);
QFETCH(std::uint32_t, s);
QFETCH(std::uint32_t, t);
// Only runtime exception is expected as any other exception is a bug
QVERIFY_EXCEPTION_THROWN(alu_operate((enum AluOp)op, s , t, 0), QtMipsExceptionRuntime);
}
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