Re: [Qemu-devel] [RFC 4/5] tcg-op: create new TCG qemu_ldlink and qemu_stcond instructions

[Richard Henderson]

On 05/06/2015 08:38 AM, Alvise Rigo wrote:
> +/* An output operand to return the StoreConditional result */
> +static void gen_stcond_i32(TCGOpcode opc, TCGv_i32 is_dirty, TCGv_i32 val,
> +                         TCGv addr, TCGMemOp memop, TCGArg idx)
> +{
> +    tcg_gen_op5ii_i32(opc, is_dirty, val, addr, memop, idx);
> +}

This is the wrong way to go about this.  I think you should merely add an EXCL
bit to TCGMemOp, and add no new opcodes at all.


r~