21 lines
747 B
Python
21 lines
747 B
Python
from .insn_rv64i_i_type import *
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"""
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RV64I I-Type Instruction (Shift Variation)
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"""
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class InsnRV64IITypeShift(InsnRV64IIType):
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def __init__(self, params, funct6, funct3):
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super().__init__(params)
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self.funct6 = funct6
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self.funct3 = funct3
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def elaborate(self, platform):
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m = super().elaborate(platform)
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m.d.comb += self.spec_valid.eq(self.rvfi_valid & (~self.insn_padding) & (self.insn_funct6 == self.funct6) & (self.insn_funct3 == self.funct3) & (self.insn_opcode == 0b0011011) & ~self.insn_shamt[5])
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m.d.comb += self.spec_rs1_addr.eq(self.insn_rs1)
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m.d.comb += self.spec_rd_addr.eq(self.insn_rd)
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m.d.comb += self.spec_pc_wdata.eq(self.rvfi_pc_rdata + 4)
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return m
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