Add AUIPC instruction

2020-08-11 17:32:56 +08:00 · 2020-08-11 17:32:56 +08:00 · 28ed0c8656
parent 35b515e53b
commit 28ed0c8656
1 changed files with 15 additions and 0 deletions
--- a/insns/InsnAuipc.py
+++ b/insns/InsnAuipc.py
@ -0,0 +1,15 @@
+from InsnRV32IUType import *
+
+"""
+AUIPC instruction
+"""
+
+class InsnAuipc(InsnRV32IUType):
+    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, 0b0010111)
+    def elaborate(self, platform):
+        m = super().elaborate(platform)
+
+        m.d.comb += self.spec_rd_wdata.eq(Mux(self.spec_rd_addr, self.rvfi_pc_rdata + self.insn_imm, 0))
+
+        return m