On 25 August 2011 22:45, Richard Henderson <r...@twiddle.net> wrote:
> @@ -1604,6 +1607,12 @@ static void gen_mfpr(int ra, int regno)
> return;
> }
>
> + if (regno == 250) {
> + /* WALL_TIME */
> + gen_helper_get_time(cpu_ir[ra]);
> + return;
> + }
> +
> /* The basic registers are data only, and unknown registers
> are read-zero, write-ignore. */
> if (data == 0) {
> @@ -1650,6 +1659,11 @@ static ExitStatus gen_mtpr(DisasContext *ctx, int rb,
> int regno)
> gen_helper_halt(tmp);
> return EXIT_PC_STALE;
>
> + case 251:
> + /* ALARM */
> + gen_helper_set_alarm(tmp);
> + break;
> +
> default:
> /* The basic registers are data only, and unknown registers
> are read-zero, write-ignore. */
Don't you need some magic around helper calls that read/write
the time to keep -icount working? I don't understand this but
Paolo does...
-- PMM
