75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
#include <gtest/gtest.h>
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#include "app/emu/audio/apu.h"
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#include "app/emu/memory/memory.h"
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namespace yaze {
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namespace emu {
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class ApuDspTest : public ::testing::Test {
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protected:
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MemoryImpl mem;
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Apu* apu;
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void SetUp() override {
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std::vector<uint8_t> dummy_rom(0x200000, 0);
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mem.Initialize(dummy_rom);
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apu = new Apu(mem);
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apu->Init();
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apu->Reset();
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}
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void TearDown() override { delete apu; }
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};
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TEST_F(ApuDspTest, DspRegistersReadWriteMirror) {
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// Select register 0x0C (MVOLL)
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apu->Write(0xF2, 0x0C);
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apu->Write(0xF3, 0x7F);
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// Read back
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apu->Write(0xF2, 0x0C);
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uint8_t mvoll = apu->Read(0xF3);
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EXPECT_EQ(mvoll, 0x7F);
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// Select register 0x1C (MVOLR)
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apu->Write(0xF2, 0x1C);
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apu->Write(0xF3, 0x40);
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apu->Write(0xF2, 0x1C);
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uint8_t mvolr = apu->Read(0xF3);
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EXPECT_EQ(mvolr, 0x40);
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}
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TEST_F(ApuDspTest, TimersEnableAndReadback) {
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// Enable timers 0 and 1, clear in-ports, map IPL off for RAM access
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apu->Write(0xF1, 0x03);
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// Set timer targets
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apu->Write(0xFA, 0x04); // timer0 target
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apu->Write(0xFB, 0x02); // timer1 target
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// Run enough SPC cycles via APU cycle stepping
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for (int i = 0; i < 10000; ++i) {
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apu->Cycle();
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}
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// Read counters (auto-clears)
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uint8_t t0 = apu->Read(0xFD);
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uint8_t t1 = apu->Read(0xFE);
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// Should be within 0..15 and non-zero under these cycles
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EXPECT_LE(t0, 0x0F);
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EXPECT_LE(t1, 0x0F);
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}
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TEST_F(ApuDspTest, GetSamplesReturnsSilenceAfterReset) {
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int16_t buffer[2 * 256]{};
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apu->dsp().GetSamples(buffer, 256, /*pal=*/false);
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for (int i = 0; i < 256; ++i) {
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EXPECT_EQ(buffer[i * 2 + 0], 0);
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EXPECT_EQ(buffer[i * 2 + 1], 0);
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}
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}
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} // namespace emu
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} // namespace yaze
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