[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 2/7] target/riscv: Introduce cur_insn_len into DisasContext
From: |
Weiwei Li |
Subject: |
[PATCH 2/7] target/riscv: Introduce cur_insn_len into DisasContext |
Date: |
Sun, 9 Apr 2023 18:53:01 +0800 |
Use cur_insn_len to store the length of the current instruction to
prepare for PC-relative translation.
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
---
target/riscv/translate.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index 1c8eae86c5..eee13b1225 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -59,6 +59,7 @@ typedef struct DisasContext {
DisasContextBase base;
/* pc_succ_insn points to the instruction following base.pc_next */
target_ulong pc_succ_insn;
+ target_ulong cur_insn_len;
target_ulong priv_ver;
RISCVMXL misa_mxl_max;
RISCVMXL xl;
@@ -1117,8 +1118,9 @@ static void decode_opc(CPURISCVState *env, DisasContext
*ctx, uint16_t opcode)
};
ctx->virt_inst_excp = false;
+ ctx->cur_insn_len = insn_len(opcode);
/* Check for compressed insn */
- if (insn_len(opcode) == 2) {
+ if (ctx->cur_insn_len == 2) {
ctx->opcode = opcode;
ctx->pc_succ_insn = ctx->base.pc_next + 2;
if (has_ext(ctx, RVC) && decode_insn16(ctx, opcode)) {
--
2.25.1
- [PATCH 0/7] target/riscv: Add support for PC-relative translation, Weiwei Li, 2023/04/09
- [PATCH 7/7] target/riscv: Remove pc_succ_insn from DisasContext, Weiwei Li, 2023/04/09
- [PATCH 5/7] target/riscv: Use true diff for gen_pc_plus_diff, Weiwei Li, 2023/04/09
- [PATCH 1/7] target/riscv: Fix target address to update badaddr, Weiwei Li, 2023/04/09
- [PATCH 3/7] target/riscv: Change gen_goto_tb to work on displacements, Weiwei Li, 2023/04/09
- [PATCH 2/7] target/riscv: Introduce cur_insn_len into DisasContext,
Weiwei Li <=
- [PATCH 4/7] target/riscv: Change gen_set_pc_imm to gen_update_pc, Weiwei Li, 2023/04/09
- [PATCH 6/7] target/riscv: Enable PC-relative translation, Weiwei Li, 2023/04/09