Create template for RVFI instruction check

checks/rvfi_insn_check.py

@@ -0,0 +1,64 @@
+from nmigen import *
+from nmigen.hdl.ast import *
+
+class rvfi_insn_check(Elaboratable):
+    def __init__(self, RISCV_FORMAL_ILEN=32, RISCV_FORMAL_XLEN=32):
+        self.RISCV_FORMAL_ILEN = RISCV_FORMAL_ILEN
+        self.RISCV_FORMAL_XLEN = RISCV_FORMAL_XLEN
+        self.reset = Signal(1)
+        self.check = Signal(1)
+        self.rvfi_valid = Signal(1)
+        self.rvfi_order = Signal(64)
+        self.rvfi_insn = Signal(self.RISCV_FORMAL_ILEN)
+        self.rvfi_trap = Signal(1)
+        self.rvfi_halt = Signal(1)
+        self.rvfi_intr = Signal(1)
+        self.rvfi_mode = Signal(2)
+        self.rvfi_ixl = Signal(2)
+        self.rvfi_rs1_addr = Signal(5)
+        self.rvfi_rs2_addr = Signal(5)
+        self.rvfi_rs1_rdata = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_rs2_rdata = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_rd_addr = Signal(5)
+        self.rvfi_rd_wdata = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_pc_rdata = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_pc_wdata = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_mem_addr = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_mem_rmask = Signal(int(self.RISCV_FORMAL_XLEN // 8))
+        self.rvfi_mem_wmask = Signal(int(self.RISCV_FORMAL_XLEN // 8))
+        self.rvfi_mem_rdata = Signal(self.RISCV_FORMAL_XLEN)
+        self.rvfi_mem_wdata = Signal(self.RISCV_FORMAL_XLEN)
+    def ports(self):
+        input_ports = [
+            self.reset,
+            self.check,
+            self.rvfi_valid,
+            self.rvfi_order,
+            self.rvfi_insn,
+            self.rvfi_trap,
+            self.rvfi_halt,
+            self.rvfi_intr,
+            self.rvfi_mode,
+            self.rvfi_ixl,
+            self.rvfi_rs1_addr,
+            self.rvfi_rs2_addr,
+            self.rvfi_rs1_rdata,
+            self.rvfi_rs2_rdata,
+            self.rvfi_rd_addr,
+            self.rvfi_rd_wdata,
+            self.rvfi_pc_rdata,
+            self.rvfi_pc_wdata,
+            self.rvfi_mem_addr,
+            self.rvfi_mem_rmask,
+            self.rvfi_mem_wmask,
+            self.rvfi_mem_rdata,
+            self.rvfi_mem_wdata
+        ]
+        output_ports = []
+        return input_ports + output_ports
+    def elaborate(self, platform):
+        m = Module()
+
+        # TODO
+
+        return m