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#include "tst_machine.h"
#include "cache.h"
using namespace machine;
void MachineTests::cache_data() {
QTest::addColumn<MachineConfigCache>("cache_c");
QTest::addColumn<unsigned>("hit");
QTest::addColumn<unsigned>("miss");
MachineConfigCache cache_c;
cache_c.set_write_policy(MachineConfigCache::WP_TROUGH);
cache_c.set_enabled(true);
cache_c.set_sets(8);
cache_c.set_blocks(1);
cache_c.set_associativity(1);
QTest::newRow("Directly mapped") << cache_c \
<< (unsigned)3 \
<< (unsigned)7;
cache_c.set_sets(1);
cache_c.set_blocks(8);
QTest::newRow("Wide") << cache_c \
<< (unsigned)5 \
<< (unsigned)5;
cache_c.set_sets(4);
cache_c.set_blocks(4);
QTest::newRow("Square") << cache_c \
<< (unsigned)4 \
<< (unsigned)6;
}
void MachineTests::cache() {
QFETCH(MachineConfigCache, cache_c);
QFETCH(unsigned, hit);
QFETCH(unsigned, miss);
Memory m;
Cache cch(&m, &cache_c);
// Test reads //
m.write_word(0x200, 0x24);
m.write_word(0x204, 0x66);
m.write_word(0x21c, 0x12);
m.write_word(0x300, 0x32);
for (int i = 0; i < 2; i++) {
QCOMPARE(cch.read_word(0x200), (std::uint32_t)0x24);
QCOMPARE(cch.read_word(0x204), (std::uint32_t)0x66);
QCOMPARE(cch.read_word(0x21c), (std::uint32_t)0x12);
QCOMPARE(cch.read_word(0x300), (std::uint32_t)0x32);
}
// Test writes //
cch.write_word(0x700, 0x24);
QCOMPARE(m.read_word(0x700), (std::uint32_t)0x24);
cch.write_word(0x700, 0x23);
QCOMPARE(m.read_word(0x700), (std::uint32_t)0x23);
// Verify counts
QCOMPARE(cch.hit(), hit);
QCOMPARE(cch.miss(), miss);
}
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