from .insn_rv32m_r_type import * """ MUL instruction """ class InsnMul(InsnRV32MRType): def __init__(self, params): super().__init__(params, 0b000) def elaborate(self, platform): m = super().elaborate(platform) if self.params.altops: m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, (self.rvfi_rs1_rdata + self.rvfi_rs2_rdata) ^ 0x2cdf52a55876063e, 0)) else: m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, self.rvfi_rs1_rdata * self.rvfi_rs2_rdata, 0)) return m