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wasmtime/lib/cretonne/meta/isa/intel/defs.py
Jakob Stoklund Olesen 7fb6159a85 Add Intel encodings for the fcmp instruction.
Not all floating point condition codes are directly supported by the
ucimiss/ucomisd instructions. Some inequalities need to be reversed and
eq+ne require two separate tests.
2017-09-26 11:17:32 -07:00

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725 B
Python

"""
Intel definitions.
Commonly used definitions.
"""
from __future__ import absolute_import
from cdsl.isa import TargetISA, CPUMode
import base.instructions
from . import instructions as x86
from base.immediates import floatcc
ISA = TargetISA('intel', [base.instructions.GROUP, x86.GROUP])
# CPU modes for 32-bit and 64-bit operation.
I64 = CPUMode('I64', ISA)
I32 = CPUMode('I32', ISA)
# The set of floating point condition codes that are directly supported.
# Other condition codes need to be reversed or expressed as two tests.
supported_floatccs = [
floatcc.ord,
floatcc.uno,
floatcc.one,
floatcc.ueq,
floatcc.gt,
floatcc.ge,
floatcc.ult,
floatcc.ule]