On 09/26/2013 05:48 PM, Alexander Graf wrote:
> +uint64_t HELPER(cinc)(uint32_t pstate, uint32_t insn, uint64_t n, uint64_t m)
> +{
> + bool else_inc = get_bits(insn, 10, 1);
> + int cond = get_bits(insn, 12, 4);
> + bool else_inv = get_bits(insn, 30, 1);
> + bool is_32bit = !get_bits(insn, 31, 1);
> + uint64_t r;
> +
> + if (helper_cond(pstate, cond)) {
> + r = n;
> + goto out;
> + }
> +
> + r = m;
> + if (else_inv) {
> + r = ~r;
> + }
> + if (else_inc) {
> + r++;
> + }
> +
> +out:
> + if (is_32bit) {
> + r = (uint32_t)r;
> + }
> +
> + return r;
> +}
Better to properly decode this during translate. And it's easy to do
everything you need via setcond and movcond.
r~
