From f73d004ec9b786855d6016c0cb8a8ca2b372fc84 Mon Sep 17 00:00:00 2001
From: Zihao Yu <yuzihao@ict.ac.cn>
Date: Tue, 19 May 2020 10:00:19 +0800
Subject: [PATCH] riscv64,difftest,ref: do not check csr

* we may enable CSR checking in the future
---
 src/isa/riscv64/difftest/ref.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/isa/riscv64/difftest/ref.c b/src/isa/riscv64/difftest/ref.c
index 54c877e8..48b57521 100644
--- a/src/isa/riscv64/difftest/ref.c
+++ b/src/isa/riscv64/difftest/ref.c
@@ -4,6 +4,7 @@
 #include "difftest.h"
 
 static void csr_prepare() {
+  return;
   cpu.mstatus = mstatus->val;
   cpu.mcause  = mcause->val;
   cpu.mepc    = mepc->val;
@@ -16,6 +17,7 @@ static void csr_prepare() {
 }
 
 static void csr_writeback() {
+  return;
   mstatus->val = cpu.mstatus;
   mcause ->val = cpu.mcause ;
   mepc   ->val = cpu.mepc   ;
-- 
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