22 lines
931 B
Python
22 lines
931 B
Python
|
from insn_R import *
|
||
|
|
|
||
|
|
class rvfi_insn_sltu(rvfi_insn_R):
|
||
|
|
def __init__(self):
|
||
|
|
super(rvfi_insn_sltu, self).__init__()
|
||
|
|
def ports(self):
|
||
|
|
return super(rvfi_insn_sltu, self).ports()
|
||
|
|
def elaborate(self, platform):
|
||
|
|
m = super(rvfi_insn_sltu, self).elaborate(platform)
|
||
|
|
|
||
|
|
# SLTU instruction
|
||
|
|
result = Signal(32)
|
||
|
|
m.d.comb += result.eq(self.rvfi_rs1_rdata < self.rvfi_rs2_rdata)
|
||
|
|
m.d.comb += self.spec_valid.eq(self.rvfi_valid & (~self.insn_padding) & (self.insn_funct7 == 0b0000000) & (self.insn_funct3 == 0b011) & (self.insn_opcode == 0b0110011))
|
||
|
|
m.d.comb += self.spec_rs1_addr.eq(self.insn_rs1)
|
||
|
|
m.d.comb += self.spec_rs2_addr.eq(self.insn_rs2)
|
||
|
|
m.d.comb += self.spec_rd_addr.eq(self.insn_rd)
|
||
|
|
m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, result, 0))
|
||
|
|
m.d.comb += self.spec_pc_wdata.eq(self.rvfi_pc_rdata + 4)
|
||
|
|
|
||
|
|
return m
|