def machine_emu_cpustate_rw_test():
cpu = emu.CPU(M68K_CPU_TYPE_68000)
cpu.w_pc(0)
cpu.w_sr(0x2700)
for i in range(16):
cpu.w_reg(i, i)
# get state
s = CPUState()
s.get(cpu)
assert s.pc == 0
assert s.sr == 0x2700
for i in range(8):
assert s.dx[i] == i
for i in range(8):
assert s.ax[i] == i + 8
# modify state
for i in range(8):
s.dx[i] = i + 0x100
s.ax[i] = i + 0x200
s.pc = 0x400
s.sr = 0x2701
# set state
s.set(cpu)
# check state
assert cpu.r_sr() == s.sr
assert cpu.r_pc() == s.pc
for i in range(8):
assert s.dx[i] == cpu.r_reg(i)
for i in range(8):
assert s.ax[i] == cpu.r_reg(i + 8)
def machine_emu_cpu_rw_reg_test():
cpu = emu.CPU(M68K_CPU_TYPE_68000)
cpu.w_reg(M68K_REG_D0, 0xDEADBEEF)
assert cpu.r_reg(M68K_REG_D0) == 0xDEADBEEF
# invalid values
with pytest.raises(OverflowError):
cpu.w_reg(M68K_REG_D0, 0xDEADBEEF12)
with pytest.raises(OverflowError):
cpu.w_reg(M68K_REG_D0, -1)
with pytest.raises(TypeError):
cpu.w_reg(M68K_REG_D0, "hello")
def machine_emu_cpu_rws_reg_test():
cpu = emu.CPU(M68K_CPU_TYPE_68000)
cpu.ws_reg(M68K_REG_D0, -123)
assert cpu.rs_reg(M68K_REG_D0) == -123
# invalid values
with pytest.raises(OverflowError):
cpu.ws_reg(M68K_REG_D0, 0x80000000)
with pytest.raises(OverflowError):
cpu.ws_reg(M68K_REG_D0, -0x80000001)
with pytest.raises(TypeError):
cpu.ws_reg(M68K_REG_D0, "hello")
def __init__(
self,
cpu_type=M68K_CPU_TYPE_68000,
ram_size_kib=1024,
use_labels=True,
raise_on_main_run=True,
cycles_per_run=1000,
max_cycles=0,
cpu_name=None,
):
if cpu_name is None:
cpu_name = self._get_cpu_name(cpu_type)
# setup musashi components
self.cpu_type = cpu_type
self.cpu_name = cpu_name
self.cpu = emu.CPU(cpu_type)
self.mem = emu.Memory(ram_size_kib)
self.traps = emu.Traps()
# internal state
if use_labels:
self.label_mgr = LabelManager()
else:
self.label_mgr = None
self.raise_on_main_run = raise_on_main_run
self.ram_total = ram_size_kib * 1024
self.ram_bytes = self.ram_total - self.ram_begin
self.error_reporter = ErrorReporter(self)
self.run_states = []
self.instr_hook = None
self.cycles_per_run = cycles_per_run
self.max_cycles = max_cycles
self.bail_out = False
# call init
self._setup_handler()
self._setup_quick_traps()
self._init_cpu()
self._init_base_mem()
def machine_emu_cpu_rw_context_test():
cpu = emu.CPU(M68K_CPU_TYPE_68000)
ctx = cpu.get_cpu_context()
cpu.set_cpu_context(ctx)