17 lines
450 B
Python
17 lines
450 B
Python
from .insn_rv32i_r_type import *
|
|
|
|
"""
|
|
SRL instruction
|
|
"""
|
|
|
|
class InsnSrl(InsnRV32IRType):
|
|
def __init__(self, params):
|
|
super().__init__(params, 0b0000000, 0b101, 0b0110011)
|
|
|
|
def elaborate(self, platform):
|
|
m = super().elaborate(platform)
|
|
|
|
m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, self.rvfi_rs1_rdata >> Mux(self.params.xlen == 64, self.rvfi_rs2_rdata[:6], self.rvfi_rs2_rdata[:5]), 0))
|
|
|
|
return m
|