def fge_op(config: Configuration) -> None:
"""
Common logic function for the float GT opcodes
"""
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", config.current_instruction.opcode.text, a,
b)
if numpy.isnan(a) or numpy.isnan(b):
config.push_operand(constants.U32_ZERO)
elif a.tobytes() == b.tobytes():
config.push_operand(constants.U32_ONE)
elif numpy.isposinf(a):
config.push_operand(constants.U32_ONE)
elif numpy.isneginf(a):
config.push_operand(constants.U32_ZERO)
elif numpy.isposinf(b):
config.push_operand(constants.U32_ZERO)
elif numpy.isneginf(b):
config.push_operand(constants.U32_ONE)
elif a == 0 and b == 0:
config.push_operand(constants.U32_ONE)
elif a >= b:
config.push_operand(constants.U32_ONE)
else:
config.push_operand(constants.U32_ZERO)
def fadd_op(config: Configuration) -> None:
"""
Common logic function for the float ADD opcodes
"""
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", config.current_instruction.opcode.text, a,
b)
with allow_multiple(over=True, invalid=True):
config.push_operand(a + b)
def fcopysign_op(config: Configuration) -> None:
"""
Common logic function for the float COPYSIGN opcodes
"""
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", config.current_instruction.opcode.text, a,
b)
a_is_negative = _is_negative(a)
b_is_negative = _is_negative(b)
if a_is_negative is b_is_negative:
config.push_operand(a)
else:
config.push_operand(_negate_float(a))
def fdiv_op(config: Configuration) -> None:
"""
Common logic function for the float DIV opcodes
"""
instruction = cast(BinOp, config.current_instruction)
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", instruction.opcode.text, a, b)
with allow_multiple(over=True, under=True, invalid=True):
if numpy.isnan(a) or numpy.isnan(b):
config.push_operand(a / b)
elif numpy.isinf(a) and numpy.isinf(b):
config.push_operand(a / b)
elif a == 0 and b == 0:
with allow_zerodiv():
config.push_operand(a / b)
elif numpy.isinf(a):
if _same_signed(a, b):
config.push_operand(instruction.valtype.inf)
else:
config.push_operand(instruction.valtype.neginf)
elif numpy.isinf(b):
if _same_signed(a, b):
config.push_operand(instruction.valtype.zero)
else:
config.push_operand(instruction.valtype.negzero)
elif a == 0:
if _same_signed(a, b):
config.push_operand(instruction.valtype.zero)
else:
config.push_operand(instruction.valtype.negzero)
elif b == 0:
if _same_signed(a, b):
config.push_operand(instruction.valtype.inf)
else:
config.push_operand(instruction.valtype.neginf)
else:
config.push_operand(a / b)
def fsub_op(config: Configuration) -> None:
"""
Common logic function for the float SUB opcodes
"""
instruction = cast(BinOp, config.current_instruction)
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", instruction.opcode.text, a, b)
with allow_multiple(over=True, invalid=True):
if numpy.isnan(a) or numpy.isnan(b):
config.push_operand(a - b)
elif _same_signed_inf(a, b):
config.push_operand(a - b)
elif numpy.isinf(a):
config.push_operand(a)
elif numpy.isinf(b):
config.push_operand(instruction.valtype.value(-1) * b)
else:
config.push_operand(a - b)
def fmax_op(config: Configuration) -> None:
"""
Common logic function for the float MAX opcodes
"""
instruction = cast(BinOp, config.current_instruction)
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", instruction.opcode.text, a, b)
if numpy.isnan(a) or numpy.isnan(b):
with allow_invalid():
config.push_operand(a + b)
elif numpy.isposinf(a) or numpy.isposinf(b):
config.push_operand(instruction.valtype.inf)
elif a == 0 and b == 0:
if _same_signed(a, b):
config.push_operand(a)
else:
config.push_operand(instruction.valtype.zero)
else:
config.push_operand(max(a, b))
def fmul_op(config: Configuration) -> None:
"""
Common logic function for the float MUL opcodes
"""
instruction = cast(BinOp, config.current_instruction)
b, a = config.pop2_f64()
if config.enable_logic_fn_logging:
logger.debug("%s(%s, %s)", instruction.opcode.text, a, b)
with allow_multiple(over=True, under=True, invalid=True):
if numpy.isnan(a) or numpy.isnan(b):
config.push_operand(a * b)
elif _same_signed_inf(a, b):
config.push_operand(instruction.valtype.inf)
elif _different_signed_inf(a, b):
config.push_operand(instruction.valtype.neginf)
elif instruction.valtype is ValType.f64:
config.push_operand(a * b)
elif instruction.valtype is ValType.f32:
config.push_operand(a * b)
else:
raise Exception("Unreachable")
