19 lines
617 B
Python
19 lines
617 B
Python
|
from .insn_rv32m_r_type import *
|
||
|
|
|
||
|
|
"""
|
||
|
|
DIVU instruction
|
||
|
|
"""
|
||
|
|
|
||
|
|
class InsnDivu(InsnRV32MRType):
|
||
|
|
def __init__(self, params):
|
||
|
|
super().__init__(params, 0b101)
|
||
|
|
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) ^ 0x8c629acb10e8fd70, 0))
|
||
|
|
else:
|
||
|
|
m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, Mux(self.rvfi_rs2_rdata == 0, 2 ** self.params.xlen - 1, self.rvfi_rs1_rdata // self.rvfi_rs2_rdata), 0))
|
||
|
|
|
||
|
|
return m
|