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test_cpu_simple - Add TEST_CASE for PUSH rr, POP rr, CALL nn and RET

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madmaurice 2023-08-29 12:10:10 +02:00
parent 1fc081b3c5
commit af5d478f40
1 changed files with 84 additions and 1 deletions
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85
tests/test_cpu_simple.cpp
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@ -87,5 +87,88 @@ TEST_CASE("LD HL, nn; LD A, [HL]; LD A, n; LD [HL], A")
CHECK(cpu.state.PC == 0x7); CHECK(cpu.state.PC == 0x7);
CHECK(test_ram[0x20] == 0x5A); CHECK(test_ram[0x20] == 0x5A);
}
TEST_CASE("PUSH rr ; POP rr")
{
u8 test_ram[] = {
/* 0x0000 */ 0x31, 0x10, 0x00, // LD SP, $0x0010
/* 0x0003 */ 0x01, 0xAA, 0x55, // LD BC, $0x55AA
/* 0x0006 */ 0xC5, // PUSH BC
/* 0x0007 */ 0x01, 0x55, 0xAA, // LD BC, $0xAA55
/* 0x000A */ 0xD1, // POP DE
/* 0x000B */ 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0x0010 */ 0x12, 0x34,
};
RAM r(test_ram, 0x0012, false);
Cpu cpu(&r);
cpu.step();
CHECK(cpu.state.PC == 0x0003);
CHECK(cpu.state.SP == 0x0010);
cpu.step();
CHECK(cpu.state.PC == 0x0006);
CHECK(cpu.state.BC == 0x55AA);
cpu.step();
CHECK(cpu.state.PC == 0x0007);
CHECK(cpu.state.SP == 0x000E);
CHECK(test_ram[0x000E] == 0xAA);
CHECK(test_ram[0x000F] == 0x55);
cpu.step();
CHECK(cpu.state.PC == 0x000A);
CHECK(cpu.state.BC == 0xAA55);
cpu.step();
CHECK(cpu.state.PC == 0x000B);
CHECK(cpu.state.DE == 0x55AA);
}
TEST_CASE("CALL ; RET")
{
u8 test_ram[] = {
/* 0x0000 */ 0x31, 0x10, 0x00, // LD SP, $0x0010
/* 0x0003 */ 0xCD, 0x0A, 0x00, // CALL $0x000A
/* 0x0006 */ 0x00, 0x00, 0x00, 0x00, // 4 x NOP
/* 0x000A */ 0x00, // NOP
/* 0x000B */ 0xC9, // RET
/* 0x000C */ 0xaa, 0xaa, 0xaa, 0xaa,
/* 0x000D */ 0xaa, 0xaa, 0xaa,
/* 0x0010 */
};
RAM r(test_ram, 0x10, false);
Cpu cpu(&r);
cpu.step(); // LD SP, $0x0010
CHECK(cpu.state.PC == 0x0003);
CHECK(cpu.state.SP == 0x0010);
cpu.step(); // CALL $0x000A
CHECK(cpu.state.PC == 0x000A);
CHECK(cpu.state.SP == 0x000E);
CHECK(test_ram[0x000F] == 0x00);
CHECK(test_ram[0x000E] == 0x06);
cpu.step(); // NOP
CHECK(cpu.state.PC == 0x000B);
CHECK(cpu.state.SP == 0x000E);
CHECK(test_ram[0x000F] == 0x00);
CHECK(test_ram[0x000E] == 0x06);
cpu.step(); // RET
CHECK(cpu.state.PC == 0x0006);
CHECK(cpu.state.SP == 0x0010);
} }