26 lines
1.0 KiB
Python
26 lines
1.0 KiB
Python
from assembler.keywords import ME, VE, macro_vector_operations
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class ValidatorError(Exception):
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pass
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def validate_instruction(ins):
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addresses = len(set(
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source.offset
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for source in [ins.source0, ins.source1, ins.source2]
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if source is not None
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))
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if addresses > 2:
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if type(ins.destination_op.opcode) is not VE:
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raise ValidatorError("too many addresses for non-VE instruction", ins)
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if ins.destination_op.opcode.name not in {b"VE_MULTIPLYX2_ADD", b"VE_MULTIPLY_ADD"}:
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raise ValidatorError("too many addresses for VE non-multiply-add instruction", ins)
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assert ins.destination_op.macro == False, ins
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ins.destination_op.macro = True
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if ins.destination_op.opcode.name == b"VE_MULTIPLY_ADD":
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ins.destination_op.opcode = macro_vector_operations[0]
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elif ins.destination_op.opcode.name == b"VE_MULTIPLYX2_ADD":
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ins.destination_op.opcode = macro_vector_operations[1]
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else:
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assert False
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return ins
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