riscv-formal-nmigen/insns/insn_lui.py

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2020-07-31 13:40:40 +08:00
from insn_U import *
class rvfi_insn_lui(rvfi_insn_U):
def __init__(self):
super(rvfi_insn_lui, self).__init__()
def ports(self):
return super(rvfi_insn_lui, self).ports()
def elaborate(self, platform):
m = super(rvfi_insn_lui, self).elaborate(platform)
# LUI instruction
m.d.comb += self.spec_valid.eq(self.rvfi_valid & (~self.insn_padding) & (self.insn_opcode == 0b0110111))
m.d.comb += self.spec_rd_addr.eq(self.insn_rd)
m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, self.insn_imm, 0))
m.d.comb += self.spec_pc_wdata.eq(self.rvfi_pc_rdata + 4)
return m