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#include "tst_machine.h"
#include "memory.h"
void MachineTests::memory_data() {
QTest::addColumn<std::uint32_t>("address");
QTest::newRow("memory begin") << (std::uint32_t)0x00;
QTest::newRow("memory end") << (std::uint32_t)0xFFFFFFFC;
QTest::newRow("memory midle start") << (std::uint32_t)0xFFFF00;
QTest::newRow("memory midle end") << (std::uint32_t)0xFFFFFF;
}
void MachineTests::memory() {
Memory m;
QFETCH(std::uint32_t, address);
// Uninitialize memory should read as zero
QCOMPARE(m.read_byte(address), (std::uint8_t)0);
QCOMPARE(m.read_hword(address), (std::uint16_t)0);
QCOMPARE(m.read_word(address), (std::uint32_t)0);
// Just a byte
m.write_byte(address, 0x42);
QCOMPARE(m.read_byte(address), (std::uint8_t)0x42);
// Half word
m.write_hword(address, 0x4243);
QCOMPARE(m.read_hword(address), (std::uint16_t)0x4243);
// Word
m.write_word(address, 0x42434445);
QCOMPARE(m.read_word(address), (std::uint32_t)0x42434445);
}
void MachineTests::memory_section_data() {
QTest::addColumn<std::uint32_t>("address");
QTest::newRow("memory begin") << (std::uint32_t)0x00;
QTest::newRow("memory end") << (std::uint32_t)0xFFFFFFFF;
QTest::newRow("memory midle start") << (std::uint32_t)0xFFFF00;
QTest::newRow("memory midle end") << (std::uint32_t)0xFFFFFF;
}
void MachineTests::memory_section() {
Memory m;
QFETCH(std::uint32_t, address);
// First section shouldn't exists
QCOMPARE(m.get_section(address, false), (MemorySection*)nullptr);
// Create section
MemorySection *s = m.get_section(address, true);
QVERIFY(s != nullptr);
// Write some data to memory
m.write_byte(address, 0x42);
// Read it trough section (mask bits outside of the memory section)
QCOMPARE(s->read_byte(address & ((1 << MEMORY_SECTION_BITS) - 1)), (std::uint8_t)0x42);
// Write some other data trough section
s->write_byte(address & ((1 << MEMORY_SECTION_BITS) - 1), 0x66);
// Read trough memory
QCOMPARE(m.read_byte(address), (std::uint8_t)0x66);
}
void MachineTests::memory_endian() {
Memory m;
// Memory should be bit endian so write bytes from most significant byte
m.write_byte(0x00, 0x12);
m.write_byte(0x01, 0x34);
m.write_byte(0x02, 0x56);
m.write_byte(0x03, 0x78);
QCOMPARE(m.read_hword(0x00), (std::uint16_t)0x1234);
QCOMPARE(m.read_word(0x00), (std::uint32_t)0x12345678);
m.write_hword(0x80, 0x1234);
QCOMPARE(m.read_byte(0x80), (std::uint8_t)0x12);
QCOMPARE(m.read_byte(0x81), (std::uint8_t)0x34);
m.write_word(0xF0, 0x12345678);
QCOMPARE(m.read_byte(0xF0), (std::uint8_t)0x12);
QCOMPARE(m.read_byte(0xF1), (std::uint8_t)0x34);
QCOMPARE(m.read_byte(0xF2), (std::uint8_t)0x56);
QCOMPARE(m.read_byte(0xF3), (std::uint8_t)0x78);
}
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