qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH v21 4/7] target/avr: Add instruction translation


From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH v21 4/7] target/avr: Add instruction translation
Date: Mon, 10 Jun 2019 13:09:23 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0

On 6/6/19 12:30 PM, Michael Rolnik wrote:
> +    target_long cpc;
> +    target_long npc;

CPC gets copied back and forth to NPC, but is now otherwise unused.
You can drop that.

> +static void translate(DisasContext *ctx)
> +{
> +    uint32_t opcode;
> +    int res;
> +    /* PC points to words.  */
> +    opcode = cpu_ldl_code(ctx->env, ctx->cpc * 2) & 0x0000ffff;
> +
> +    ctx->npc = ctx->cpc + 1;

Which allows this to become

    uint32_t opcode = next_word(ctx);


r~



reply via email to

[Prev in Thread] Current Thread [Next in Thread]