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83 lines
1.6 KiB
83 lines
1.6 KiB
import pytest
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from tests.cpu.insn.helpers import *
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@pytest.mark.parametrize("rr", set(R16) - {R16.HL})
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def test_add_hl_rr(rr):
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cpu = CPU()
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cpu.set_reg16(R16.HL, 0xABCD)
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cpu.set_reg16(rr, 0x1234)
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ADD_HL_RR(rr).exec(cpu)
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assert cpu.get_reg16(R16.HL) == 0xBE01
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assert cpu.state.carry == 0
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cpu.set_reg16(rr, 0xFFFF - 0xBE01 + 1)
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ADD_HL_RR(rr).exec(cpu)
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assert cpu.get_reg16(R16.HL) == 0
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assert cpu.state.carry == 1
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@pytest.mark.parametrize("rr", set(R16))
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def test_inc_rr(rr):
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cpu = CPU()
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cpu.set_reg16(rr, 0xABCD)
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INC_RR(rr).exec(cpu)
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assert cpu.get_reg16(rr) == 0xABCE
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@pytest.mark.parametrize("rr", set(R16))
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def test_dec_rr(rr):
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cpu = CPU()
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cpu.set_reg16(rr, 0xABCD)
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DEC_RR(rr).exec(cpu)
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assert cpu.get_reg16(rr) == 0xABCC
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def test_add_sp_dd():
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cpu = CPU()
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cpu.set_reg16(R16.SP, 0xFFFF)
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ADD_SP_DD(-1).exec(cpu)
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assert cpu.get_reg16(R16.SP) == 0xFFFE
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assert cpu.state.carry == 0
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ADD_SP_DD(2).exec(cpu)
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assert cpu.get_reg16(R16.SP) == 0
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assert cpu.state.carry == 1
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ADD_SP_DD(-1).exec(cpu)
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assert cpu.get_reg16(R16.SP) == 0xFFFF
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assert cpu.state.carry == 1
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def test_ld_hl_sp_dd():
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cpu = CPU()
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cpu.set_reg16(R16.SP, 0xFFFF)
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LD_HL_SP_DD(1).exec(cpu)
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assert cpu.get_reg16(R16.HL) == 0
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assert cpu.state.carry == 1
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cpu.set_reg16(R16.SP, 0)
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LD_HL_SP_DD(-1).exec(cpu)
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assert cpu.get_reg16(R16.HL) == 0xFFFF
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assert cpu.state.carry == 1
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cpu.set_reg16(R16.SP, 0xFFFF)
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LD_HL_SP_DD(-2).exec(cpu)
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assert cpu.get_reg16(R16.HL) == 0xFFFD
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assert cpu.state.carry == 0
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