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PowerPC MMU and exception fixes:

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* PowerPC 601 (and probably POWER/POWER2) uses a different BAT format than
  later PowerPC implementation.
* Bugfix in BATs check: must not stop after 4 BATs when more are provided.
* Enable POWER 'rac' instruction.
* Fix exception prefix for all supported PowerPC implementations.
* Fix exceptions, MMU model and bus model for PowerPC 601 & 620.
* Enable PowerPC 620 as it could mostly boot a PreP target.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3518 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-11-03 13:37:12 +00:00
parent f10c315f8f
commit faadf50e29
5 changed files with 114 additions and 55 deletions
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9
target-ppc/op_helper.c
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@ -1682,15 +1682,18 @@ void do_POWER_mulo (void)
#if !defined (CONFIG_USER_ONLY)
void do_POWER_rac (void)
{
#if 0
mmu_ctx_t ctx;
int nb_BATs;
/* We don't have to generate many instances of this instruction,
* as rac is supervisor only.
*/
if (get_physical_address(env, &ctx, T0, 0, ACCESS_INT, 1) == 0)
/* XXX: FIX THIS: Pretend we have no BAT */
nb_BATs = env->nb_BATs;
env->nb_BATs = 0;
if (get_physical_address(env, &ctx, T0, 0, ACCESS_INT) == 0)
T0 = ctx.raddr;
#endif
env->nb_BATs = nb_BATs;
}
void do_POWER_rfsvc (void)