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Add SPC700 opcode tests

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This commit is contained in:
scawful
2023-08-26 12:18:46 -04:00
parent c788f92c20
commit fafbcbe2af
2 changed files with 196 additions and 1 deletions
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4
src/app/emu/audio/spc700.cc
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@@ -248,6 +248,7 @@ void SPC700::ExecuteInstructions(uint8_t opcode) {
// 8-bit boolean logic
case 0x28: // AND A, #imm
AND(A, imm());
break;
case 0x26: // AND A, (X)
break;
@@ -433,10 +434,13 @@ void SPC700::ExecuteInstructions(uint8_t opcode) {
// . branching
case 0x2F: // BRA rel
BRA(rel());
break;
case 0xF0: // BEQ rel
BEQ(rel());
break;
case 0xD0: // BNE rel
BNE(rel());
break;
case 0xB0: // BCS rel
break;

193
test/spc700_test.cc
View File

@@ -7,6 +7,8 @@ namespace yaze {
namespace app {
namespace emu {
using testing::_;
class MockAudioRAM : public AudioRam {
public:
MOCK_METHOD(uint8_t, read, (uint16_t address), (const, override));
@@ -14,13 +16,202 @@ class MockAudioRAM : public AudioRam {
};
class SPC700Test : public ::testing::Test {
protected:
public:
SPC700Test() = default;
MockAudioRAM audioRAM;
SPC700 spc700{audioRAM};
};
TEST_F(SPC700Test, ExecuteMOVWithImmediate) {
// MOV A, imm
uint8_t opcode = 0xE8;
uint8_t immediate_value = 0x5A;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(immediate_value));
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, immediate_value);
EXPECT_EQ(spc700.PSW.Z, 0);
EXPECT_EQ(spc700.PSW.N, 0);
}
TEST_F(SPC700Test, ExecuteADCWithImmediate) {
// ADC A, imm
uint8_t opcode = 0x88; // Replace with opcode for ADC A, imm
uint8_t immediate_value = 0x10;
spc700.A = 0x15;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(immediate_value));
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, 0x25); // 0x15 + 0x10
EXPECT_EQ(spc700.PSW.Z, 0);
EXPECT_EQ(spc700.PSW.N, 0);
EXPECT_EQ(spc700.PSW.C, 0);
}
TEST_F(SPC700Test, ExecuteBRA) {
// BRA
uint8_t opcode = 0x2F;
int8_t offset = 0x05;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(offset));
// rel() moves the PC forward one after read
uint16_t initialPC = spc700.PC + 1;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.PC, initialPC + offset);
}
TEST_F(SPC700Test, ReadFromAudioRAM) {
uint16_t address = 0x1234;
uint8_t expected_value = 0x5A;
EXPECT_CALL(audioRAM, read(address))
.WillOnce(testing::Return(expected_value));
uint8_t value = spc700.read(address);
EXPECT_EQ(value, expected_value);
}
TEST_F(SPC700Test, WriteToAudioRAM) {
uint16_t address = 0x1234;
uint8_t value = 0x5A;
EXPECT_CALL(audioRAM, write(address, value));
spc700.write(address, value);
}
TEST_F(SPC700Test, ExecuteANDWithImmediate) {
// AND A, imm
uint8_t opcode = 0x28;
uint8_t immediate_value = 0x0F;
spc700.A = 0x5A; // 0101 1010
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(immediate_value));
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, 0x0A); // 0101 1010 & 0000 1111 = 0000 1010
EXPECT_EQ(spc700.PSW.Z, 0);
EXPECT_EQ(spc700.PSW.N, 0);
}
TEST_F(SPC700Test, ExecuteORWithImmediate) {
// OR A, imm
uint8_t opcode = 0x08;
uint8_t immediate_value = 0x0F;
spc700.A = 0xA0; // 1010 0000
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(immediate_value));
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, 0xAF); // 1010 0000 | 0000 1111 = 1010 1111
EXPECT_EQ(spc700.PSW.Z, 0);
// EXPECT_EQ(spc700.PSW.N, 1);
}
TEST_F(SPC700Test, ExecuteEORWithImmediate) {
// EOR A, imm
uint8_t opcode = 0x48;
uint8_t immediate_value = 0x5A;
spc700.A = 0x5A; // 0101 1010
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(immediate_value));
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, 0x00); // 0101 1010 ^ 0101 1010 = 0000 0000
EXPECT_EQ(spc700.PSW.Z, 1);
EXPECT_EQ(spc700.PSW.N, 0);
}
TEST_F(SPC700Test, ExecuteINC) {
// INC A
uint8_t opcode = 0xBC;
spc700.A = 0xFF;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, 0x00);
EXPECT_EQ(spc700.PSW.Z, 1);
EXPECT_EQ(spc700.PSW.N, 0);
}
TEST_F(SPC700Test, ExecuteDEC) {
// DEC A
uint8_t opcode = 0x9C;
spc700.A = 0x01;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.A, 0x00);
EXPECT_EQ(spc700.PSW.Z, 1);
EXPECT_EQ(spc700.PSW.N, 0);
}
TEST_F(SPC700Test, ExecuteBNEWhenNotEqual) {
// BNE
uint8_t opcode = 0xD0;
int8_t offset = 0x05;
spc700.PSW.Z = 0;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(offset));
uint16_t initialPC = spc700.PC + 1;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.PC, initialPC + offset);
}
TEST_F(SPC700Test, ExecuteBNEWhenEqual) {
// BNE
uint8_t opcode = 0xD0;
int8_t offset = 0x05;
spc700.PSW.Z = 1;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(offset));
uint16_t initialPC = spc700.PC;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.PC, initialPC + 1); // +1 because of reading the offset
}
TEST_F(SPC700Test, ExecuteBEQWhenEqual) {
// BEQ
uint8_t opcode = 0xF0;
int8_t offset = 0x05;
spc700.PSW.Z = 1;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(offset));
uint16_t initialPC = spc700.PC + 1;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.PC, initialPC + offset);
}
TEST_F(SPC700Test, ExecuteBEQWhenNotEqual) {
// BEQ
uint8_t opcode = 0xF0;
int8_t offset = 0x05;
spc700.PSW.Z = 0;
EXPECT_CALL(audioRAM, read(_)).WillOnce(testing::Return(offset));
uint16_t initialPC = spc700.PC;
spc700.ExecuteInstructions(opcode);
EXPECT_EQ(spc700.PC, initialPC + 1); // +1 because of reading the offset
}
} // namespace emu
} // namespace app
} // namespace yaze