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target-alpha: Implement RD/WRUNIQUE in the translator

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When emulating user-mode only, there's no reason to exit
the translation block to effect a call_pal.  We can generate
a move to/from the unique slot directly.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Richard Henderson 2009-12-11 09:38:23 -08:00 • committed by Aurelien Jarno
parent 73651cce62
commit ab471ade02
2 changed files with 34 additions and 16 deletions
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11
hw/alpha_palcode.c
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@ -1060,7 +1060,6 @@ void call_pal (CPUState *env, int palcode)
{
target_long ret;
qemu_log("%s: palcode %02x\n", __func__, palcode);
switch (palcode) {
case 0x83:
/* CALLSYS */
@ -1078,14 +1077,14 @@ void call_pal (CPUState *env, int palcode)
break;
case 0x9E:
/* RDUNIQUE */
env->ir[IR_V0] = env->unique;
qemu_log("RDUNIQUE: " TARGET_FMT_lx "\n", env->unique);
break;
/* Handled in the translator for usermode. */
abort();
case 0x9F:
/* WRUNIQUE */
env->unique = env->ir[IR_A0];
qemu_log("WRUNIQUE: " TARGET_FMT_lx "\n", env->unique);
break;
qemu_log("WRUNIQUE: " TARGET_FMT_lx "\n", env->ir[IR_A0]);
/* Handled in the translator for usermode. */
abort();
default:
qemu_log("%s: unhandled palcode %02x\n",
__func__, palcode);