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Subject: Re: [Qemu-devel] [PATCH 09/10] target-tricore: add FRET
 instructions of the v1.6 ISA
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To: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, qemu-devel@nongnu.org

On 05/13/2015 02:45 AM, Bastian Koppelmann wrote:
> +static void gen_fret(DisasContext *ctx)
> +{
> +    tcg_gen_andi_tl(cpu_PC, cpu_gpr_a[11], ~0x1);
> +    tcg_gen_qemu_ld_tl(cpu_gpr_a[11], cpu_gpr_a[10], ctx->mem_idx, MO_LESL);
> +    tcg_gen_addi_tl(cpu_gpr_a[10], cpu_gpr_a[10], 4);
> +    tcg_gen_exit_tb(0);
> +    ctx->bstate = BS_BRANCH;
> +}

Likewise, if the load traps, surely PC isn't updated.


r~