Add RV64I I-Type Instruction (Shift Variation)

rvfi/insns/insn_rv64i_i_type_shift.py

@@ -0,0 +1,20 @@
+from .insn_rv64i_i_type import *
+
+"""
+RV64I I-Type Instruction (Shift Variation)
+"""
+
+class InsnRV64IITypeShift(InsnRV64IIType):
+    def __init__(self, params, funct6, funct3):
+        super().__init__(params)
+        self.funct6 = funct6
+        self.funct3 = funct3
+    def elaborate(self, platform):
+        m = super().elaborate(platform)
+
+        m.d.comb += self.spec_valid.eq(self.rvfi_valid & (~self.insn_padding) & (self.insn_funct6 == self.funct6) & (self.insn_funct3 == self.funct3) & (self.insn_opcode == 0b0011011) & ~self.insn_shamt[5])
+        m.d.comb += self.spec_rs1_addr.eq(self.insn_rs1)
+        m.d.comb += self.spec_rd_addr.eq(self.insn_rd)
+        m.d.comb += self.spec_pc_wdata.eq(self.rvfi_pc_rdata + 4)
+
+        return m