Add ADD instruction

2020-08-07 13:54:00 +08:00 · 2020-08-07 13:54:00 +08:00 · ccc1bd098b
parent 4f7b11d009
commit ccc1bd098b
1 changed files with 11 additions and 0 deletions
--- a/insns/InsnAdd.py
+++ b/insns/InsnAdd.py
@ -0,0 +1,11 @@
+from InsnRV32IRType import *
+
+class InsnAdd(InsnRV32IRType):
+    def __init__(self, RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED):
+        super(InsnAdd, self).__init__(RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED, 0b0000000, 0b000, 0b0110011)
+    def elaborate(self, platform):
+        m = super(InsnAdd, self).elaborate(platform)
+
+        m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, self.rvfi_rs1_rdata + self.rvfi_rs2_rdata, 0))
+
+        return m