riscv-formal-nmigen/insns/InsnOr.py

16 lines
540 B
Python
Raw Normal View History

2020-08-07 15:54:18 +08:00
from InsnRV32IRType import *
2020-08-07 16:06:15 +08:00
"""
OR instruction
"""
2020-08-07 15:54:18 +08:00
class InsnOr(InsnRV32IRType):
def __init__(self, RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED):
2020-08-10 11:15:05 +08:00
super().__init__(RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED, 0b0000000, 0b110, 0b0110011)
2020-08-07 15:54:18 +08:00
def elaborate(self, platform):
2020-08-10 11:15:05 +08:00
m = super().elaborate(platform)
2020-08-07 15:54:18 +08:00
m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, self.rvfi_rs1_rdata | self.rvfi_rs2_rdata, 0))
return m