Add SLLI instruction

2020-08-10 12:29:52 +08:00 · 2020-08-10 12:29:52 +08:00 · 1fb51e614d
parent 94faa3ba68
commit 1fb51e614d
1 changed files with 11 additions and 0 deletions
--- a/insns/InsnSlli.py
+++ b/insns/InsnSlli.py
@ -0,0 +1,11 @@
+from InsnRV32IITypeShift import *
+
+class InsnSlli(InsnRV32IITypeShift):
+    def __init__(self, RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED):
+        super().__init__(RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED, 0b000000, 0b001)
+    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 << self.insn_shamt, 0))
+
+        return m