91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
#include "gtest/gtest.h"
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#include "test-utils.h"
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using namespace std;
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using namespace emu_6502;
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const uint8_t PHA = 0x48;
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const uint8_t PHP = 0x08;
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const uint8_t PLA = 0x68;
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const uint8_t PLP = 0x28;
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const uint8_t CLC = 0x18;
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const uint8_t CLD = 0xD8;
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const uint8_t CLI = 0x58;
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const uint8_t CLV = 0xB8;
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TEST(StackOpcodeHandlerContainer, PHA) {
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auto machine = create_machine({PHA});
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machine->get_cpu().get_a().set_value(0x13);
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machine->execute();
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ASSERT_EQ(0x13, machine->get_cpu().get_a().get_value());
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ASSERT_EQ(0x13, machine->get_stack().pop());
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ASSERT_TRUE(are_flags_set(machine->get_cpu().get_ps(), RegisterFlagSet{}));
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}
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TEST(StackOpcodeHandlerContainer, PHP) {
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auto machine = create_machine({PHP});
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machine->get_cpu().get_ps().set_value(0xFF);
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machine->execute();
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ASSERT_EQ(0xFF, machine->get_cpu().get_ps().get_value().to_ulong());
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ASSERT_EQ(0xFF, machine->get_stack().pop());
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}
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TEST(StackOpcodeHandlerContainer, PLA) {
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auto machine = create_machine({PLA});
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machine->get_stack().push(0x05);
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machine->execute();
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ASSERT_EQ(0x05, machine->get_cpu().get_a().get_value());
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ASSERT_TRUE(are_flags_set(machine->get_cpu().get_ps(), RegisterFlagSet{}));
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}
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TEST(StackOpcodeHandlerContainer, PLA_NegativeFlag) {
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auto machine = create_machine({PLA});
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machine->get_stack().push(0xf5);
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machine->execute();
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ASSERT_EQ(0xf5, machine->get_cpu().get_a().get_value());
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RegisterFlagSet flags{};
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flags.negative = true;
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ASSERT_TRUE(are_flags_set(machine->get_cpu().get_ps(), flags));
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}
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TEST(StackOpcodeHandlerContainer, PLA_ZeroFlag) {
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auto machine = create_machine({PLA});
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machine->get_stack().push(0x0);
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machine->execute();
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ASSERT_EQ(0x0, machine->get_cpu().get_a().get_value());
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RegisterFlagSet flags{};
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flags.zero = true;
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ASSERT_TRUE(are_flags_set(machine->get_cpu().get_ps(), flags));
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}
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TEST(StackOpcodeHandlerContainer, PLP) {
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auto machine = create_machine({PHP, CLC, CLD, CLI, CLV, PLP});
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auto& ps = machine->get_cpu().get_ps();
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ps.set_zero(true);
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ps.set_negative(true);
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ps.set_carry(true);
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ps.set_overflow(true);
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ps.set_interupt_disable(true);
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ps.set_decimal(true);
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ps.set_break(true);
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machine->execute();
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RegisterFlagSet flags{};
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flags.zero = true;
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flags.negative = true;
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flags.carry = true;
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flags.overflow = true;
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flags.interupt_disable = true;
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flags.decimal = true;
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flags.brk = true;
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ASSERT_TRUE(are_flags_set(machine->get_cpu().get_ps(), flags));
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}
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