From a00bf16cca825dba0585e696f3bef1a5b00c9f22 Mon Sep 17 00:00:00 2001
From: Zihao Yu <yuzihao@ict.ac.cn>
Date: Sun, 15 Sep 2019 03:21:51 +0800
Subject: [PATCH] riscv64,decode: fix signed-extend for B-type

---
 src/isa/riscv64/decode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/isa/riscv64/decode.c b/src/isa/riscv64/decode.c
index 609c7b3c..3bd5d446 100644
--- a/src/isa/riscv64/decode.c
+++ b/src/isa/riscv64/decode.c
@@ -35,10 +35,10 @@ make_DHelper(R) {
 }
 
 make_DHelper(U) {
-  decode_op_i(id_src, decinfo.isa.instr.imm31_12 << 12, true);
+  decode_op_i(id_src, decinfo.isa.instr.simm31_12 << 12, true);
   decode_op_r(id_dest, decinfo.isa.instr.rd, false);
 
-  print_Dop(id_src->str, OP_STR_SIZE, "0x%x", decinfo.isa.instr.imm31_12);
+  print_Dop(id_src->str, OP_STR_SIZE, "0x%x", decinfo.isa.instr.simm31_12);
 }
 
 make_DHelper(J) {
-- 
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