diff options
| author | j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-10-08 02:35:41 +0000 |
|---|---|---|
| committer | j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-10-08 02:35:41 +0000 |
| commit | 4e80effcf961b0ce3b794d239225aacb7f48f38c (patch) | |
| tree | 8e6d1ab4d26cfd6eced37b64f42ebbdf28208d41 /target-ppc/helper.c | |
| parent | 7a3a6927b656b1b6b6c59961cfb098f315ffee0e (diff) | |
Implement exception prefix feature for PowerPC 601.
Fix PowerPC 601 hardware reset vector.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3352 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/helper.c')
| -rw-r--r-- | target-ppc/helper.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/target-ppc/helper.c b/target-ppc/helper.c index 86debbc3c7..3d686c10a6 100644 --- a/target-ppc/helper.c +++ b/target-ppc/helper.c @@ -1996,16 +1996,17 @@ int do_store_msr (CPUPPCState *env, target_ulong value) tlb_flush(env, 1); env->interrupt_request |= CPU_INTERRUPT_EXITTB; } -#if 0 - if (loglevel != 0) { - fprintf(logfile, "%s: T0 %08lx\n", __func__, value); - } -#endif +#if !defined (CONFIG_USER_ONLY) if (unlikely((env->flags & POWERPC_FLAG_TGPR) && ((value >> MSR_TGPR) & 1) != msr_tgpr)) { /* Swap temporary saved registers with GPRs */ swap_gpr_tgpr(env); } + if (unlikely((value >> MSR_EP) & 1) != msr_ep) { + /* Change the exception prefix on PowerPC 601 */ + env->excp_prefix = ((value >> MSR_EP) & 1) * 0xFFF00000; + } +#endif #if defined (TARGET_PPC64) msr_sf = (value >> MSR_SF) & 1; msr_isf = (value >> MSR_ISF) & 1; @@ -2899,7 +2900,7 @@ void cpu_ppc_reset (void *opaque) #endif msr_ap = 0; /* TO BE CHECKED */ msr_sa = 0; /* TO BE CHECKED */ - msr_ip = 0; /* TO BE CHECKED */ + msr_ep = 1; #if defined (DO_SINGLE_STEP) && 0 /* Single step trace mode */ msr_se = 1; |