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target/riscv: Sign extend pc for different XLEN

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When pc is written, it is sign-extended to fill the widest supported XLEN.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220120122050.41546-5-zhiwei_liu@c-sky.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2022-01-20 20:20:31 +08:00 • committed by Alistair Francis
parent a14db52f7f
commit 40f0c2046c
4 changed files with 27 additions and 9 deletions
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2
target/riscv/insn_trans/trans_privileged.c.inc
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@ -102,7 +102,7 @@ static bool trans_mret(DisasContext *ctx, arg_mret *a)
static bool trans_wfi(DisasContext *ctx, arg_wfi *a)
{
#ifndef CONFIG_USER_ONLY
tcg_gen_movi_tl(cpu_pc, ctx->pc_succ_insn);
gen_set_pc_imm(ctx, ctx->pc_succ_insn);
gen_helper_wfi(cpu_env);
return true;
#else