Use the same routines to check overflow for addo, subfo and PowerPC 405
multiply and add cases.
Fix carry reset in addme(o) and subfme(o) cases.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3574 c046a42c-6fe2-441c-8c8c-71466251a162
Implement PowerPC 601 HID0 register, needed for little-endian mode support.
As a consequence, we need to merge hflags coming from MSR with other ones.
Use little-endian mode from hflags instead of MSR during code translation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3524 c046a42c-6fe2-441c-8c8c-71466251a162
* 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
and reporting the bug :
* remove bugged CR ops specific micro-ops
* use standard and / or / shift operations instead
* comment not-used-anymore op_store_T1_crf_crf micro-op template.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3501 c046a42c-6fe2-441c-8c8c-71466251a162
we must do a load before the store, or we'll store random data.
Update cache instructions comments.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3448 c046a42c-6fe2-441c-8c8c-71466251a162
routines. Coming back to a raw MSR storage model then speed-up the emulation.
Improve fast MSR updates (wrtee wrteei and mtriee cases).
Share rfi family instructions helpers code to avoid bug in duplicated code.
Allow entering halt mode as the result of a rfi instruction.
Add a new helper_regs.h file to avoid duplication of special registers
manipulation routines (currently XER and MSR).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3436 c046a42c-6fe2-441c-8c8c-71466251a162
allowing support of more than 2 mmu access modes.
Add backward compatibility is_user variable in targets code when needed.
Implement per target cpu_mmu_index function, avoiding duplicated code
and #ifdef TARGET_xxx in softmmu core functions.
Implement per target mmu modes definitions. As an example, add PowerPC
hypervisor mode definition and Alpha executive and kernel modes definitions.
Optimize PowerPC case, precomputing mmu_idx when MSR register changes
and using the same definition in code translation code.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3384 c046a42c-6fe2-441c-8c8c-71466251a162
Add #ifdef to avoid compiling not relevant resources:
- MMU related stuff for user-mode only targets
- PowerPC 64 only resources for PowerPC 32 targets
- embedded PowerPC extensions for non-ppcemb targets.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3343 c046a42c-6fe2-441c-8c8c-71466251a162
As a side effect, single step and branch step are available again.
Remove irrelevant MSR bits definitions.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3342 c046a42c-6fe2-441c-8c8c-71466251a162
memory segments.
Remove the PowerPC 64 "bridge" MMU model and implement segment registers
emulation using SLB entries instead.
Make SLB area size implementation dependant.
Improve TLB & SLB search debug traces.
Temporary hack to make PowerPC 970 boot from ROM instead of RAM.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3335 c046a42c-6fe2-441c-8c8c-71466251a162
