def test_mem2fac1(self):
suite.banner(self.test_mem2fac1)
a = self.a
# No overrun test -- FAC_PTR is there
_; a.macro (fac, -1.234567e-89, 0x8000)
_; a.macro (ldxy_imm, 0x8000)
_; a(jsr, 'MEM2FAC1')
self.run_test()
self.assertEquals(-1.234567e-89, vm.fac2py(self.mem[f1_start:f1_end]))
def __call__(self):
cmd = self.mem[memmap.FPU_COMMAND]
if cmd == 0:
return
op1 = vm.fac2py(self.mem[_f0_start:_f0_end])
op2 = vm.fac2py(self.mem[_f1_start:_f1_end])
result = 0
status = aliases.FPU_OK
if cmd in FPU_BINARY_MAP:
try:
result = FPU_BINARY_MAP[cmd](op1, op2)
except ZeroDivisionError:
status = aliases.ERR_FPU_DIVISION_BY_ZERO
elif cmd in FPU_COMPARE_MAP:
cmpresult = FPU_COMPARE_MAP[cmd](op1, op2)
result = 1 if cmpresult else 0
else:
status = aliases.ERR_FPU_INVALID_COMMAND
self.mem[_f0_start:_f0_end] = vm.py2fac(result)
self.mem[memmap.FPU_COMMAND] = 0
self.mem[memmap.FPU_STATUS] = status
def test_fac2mem0(self):
suite.banner(self.test_fac2mem0)
a = self.a
self.mem[0x8006::2] = 0xbeef
_; a.macro (fac0, -1.234567e-89)
_; a.macro (ldxy_imm, fm_start)
_; a(jsr, 'FAC2MEM0')
self.run_test()
self.assertEquals(-1.234567e-89, vm.fac2py(self.mem[fm_start:fm_end]))
self.assertEquals(0xbeef, self.mem[0x8006::2])
def test_mem2fac0(self):
suite.banner(self.test_mem2fac0)
a = self.a
self.mem[aliases.FAC0 + 6::2] = 0xbeef
_; a.macro (fac, -1.234567e-89, 0x8000)
_; a.macro (ldxy_imm, 0x8000)
_; a(jsr, 'MEM2FAC0')
self.run_test()
self.assertEquals(-1.234567e-89, vm.fac2py(self.mem[f0_start:f0_end]))
self.assertEquals(0xbeef, self.mem[aliases.FAC0 + 6::2])
def test_facop(self):
suite.banner(self.test_facop)
a = self.a
_; a.macro (fac0, 8)
_; a.macro (fac1, 7)
_; a(lda_imm, 'FPU_ADD')
_; a(jsr, 'FACOP')
_; a(lda_zp, 'FPU_STATUS')
self.run_test()
self.assertEquals(15, vm.fac2py(self.mem[f0_start:f0_end]))
self.assertEquals(0, self.cpu.a)
def test_fac2py_sign_both(self):
bytes = [0xf0, 0x70, 0x56, 0x34, 0x12, 0x42]
self.assertEquals(-1.234567e42, vm.fac2py(bytes))
def test_fac2py_sign_mantissa_with_exponent(self):
bytes = [0xf0, 0x70, 0x56, 0x34, 0x12, 0x42]
self.assertEquals(-1.234567e42, vm.fac2py(bytes))
def test_fac2py_sign_mantissa(self):
bytes = [0xf0, 0x70, 0x56, 0x34, 0x12, 0x06]
self.assertEquals(-1234567, vm.fac2py(bytes))
def test_fac2py_exponent2(self):
bytes = [0x00, 0x00, 0x00, 0x30, 0x12, 0x02]
self.assertEquals(123, vm.fac2py(bytes))
def test_fac2py_exponent6(self):
bytes = [0x00, 0x70, 0x56, 0x34, 0x12, 0x06]
self.assertEquals(1234567, vm.fac2py(bytes))
def test_fac2py(self):
bytes = [0x00, 0x70, 0x56, 0x34, 0x12, 0x00]
self.assertEquals(1.234567, vm.fac2py(bytes))