The instructions are specified to update the condition register even if
an error is to be signaled because of NaN input.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6034 c046a42c-6fe2-441c-8c8c-71466251a162
Mask the initial MSR with the mask from the PowerPC CPU definition.
Noticed by Nathan Froyd.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5964 c046a42c-6fe2-441c-8c8c-71466251a162
Rework the memory load/store:
- Unify load/store functions for 32-bit and 64-bit CPU
- Don't swap values twice for bit-reverse load/store functions
in little endian mode.
- On a 64-bit CPU in 32-bit mode, do the address truncation for
address computation instead of every load store. Truncate the
address when incrementing the address (if needed)
- Cache writes to access_types.
- Add a few missing calls to gen_set_access_type()
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5949 c046a42c-6fe2-441c-8c8c-71466251a162
... which left was enabled by mistake.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5918 c046a42c-6fe2-441c-8c8c-71466251a162
Silences a warning about possible unitialized use of t0.
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5915 c046a42c-6fe2-441c-8c8c-71466251a162
Should not give any performance penality given cpu_mmu_index() is
an inline function returning a value from env.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5837 c046a42c-6fe2-441c-8c8c-71466251a162
All archs use the same cpu_loop_exit, so move the prototype in a common
header. i386 was carrying a __hidden attribute, but that was empty for
this arch anyway.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5820 c046a42c-6fe2-441c-8c8c-71466251a162
This switches cpu_break/watchpoint_* to TAILQ wrappers, simplifying the
code and also fixing a use after release issue in
cpu_break/watchpoint_remove_all.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5799 c046a42c-6fe2-441c-8c8c-71466251a162
Write env->access_type before a load/store operation instead of relying
on the name of the dyngen operation.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5785 c046a42c-6fe2-441c-8c8c-71466251a162
Including a few bug fixes:
- Don't clear high part for instruction with 32-bit destination
- Fix efscmp* and etstcmp* return value
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5783 c046a42c-6fe2-441c-8c8c-71466251a162
This patch prepares the QEMU cpu_watchpoint/breakpoint API to allow the
succeeding enhancements this series comes with.
First of all, it overcomes MAX_BREAKPOINTS/MAX_WATCHPOINTS by switching
to dynamically allocated data structures that are kept in linked lists.
This also allows to return a stable reference to the related objects,
required for later introduced x86 debug register support.
Breakpoints and watchpoints are stored with their full information set
and an additional flag field that makes them easily extensible for use
beyond pure guest debugging.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5738 c046a42c-6fe2-441c-8c8c-71466251a162
This patch refactors the way the CPU state is handled that is associated
with a TB. The basic motivation is to move more arch specific code out
of generic files. Specifically the long #ifdef clutter in tb_find_fast()
has to be overcome in order to avoid duplicating it for the gdb
watchpoint fixes (patch "Restore pc on watchpoint hits").
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5736 c046a42c-6fe2-441c-8c8c-71466251a162
as macros should be avoided when possible.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5735 c046a42c-6fe2-441c-8c8c-71466251a162
when compiling on NetBSD:
warning: array subscript has type 'char'
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5727 c046a42c-6fe2-441c-8c8c-71466251a162
- Rename to gen_op_arith_neg for consistency with other functions.
- Correctly free TCG temp variable.
- Fix the return value in 64-bit mode in case of overflow.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5659 c046a42c-6fe2-441c-8c8c-71466251a162
gen_op_arith_divw():
- "deoptimize" gen_op_arith_divw to make it more readable.
- Correctly free TCG temp variable
gen_op_arith_divd():
- Call the right function.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5658 c046a42c-6fe2-441c-8c8c-71466251a162
It looks like the i386 runs out of registers for allocation due
to too many global registers allocated by the ppc target.
Here is a quick and dirty fix that seems to solve the problem.
This should be considered as temporary.
Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5648 c046a42c-6fe2-441c-8c8c-71466251a162
Revision 5500 of the qemu repository removed all code using
ppc_load_xer & ppc_store_xer as well as their implementation.
Another patch fixes it's usage in kvm-userspace for powerpc, but I think
that header can now be cleaned up, therefore this patch to qemu-devel.
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5589 c046a42c-6fe2-441c-8c8c-71466251a162
Also fix rlwimi and rldimi for corner cases.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5555 c046a42c-6fe2-441c-8c8c-71466251a162
Define XER bits as a single register and access them individually to
avoid defining 5 32-bit registers (TCG doesn't permit to map 8-bit
registers).
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5500 c046a42c-6fe2-441c-8c8c-71466251a162
There was a bogus case where two system debug ops get generated. This
patch removes the broken system debug op. This was a left over after
making some changes to correctly generate debug ops on branch
operations inside gen_goto_tb();
The test case against this patch is to turn on single stepping with
timers, boot a linux kernel, set a breakpoint a do_fork and in gdb
execute "si 3000". Then qemu-system-ppc will fault executing a debug
op, which should not have been executed.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5391 c046a42c-6fe2-441c-8c8c-71466251a162
Based on patch by Julian Seward.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5379 c046a42c-6fe2-441c-8c8c-71466251a162
Replace op_add with tcg_gen_add_tl and op_addi with tcg_gen_addi_tl.
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5167 c046a42c-6fe2-441c-8c8c-71466251a162
- use target_ulong for gpr and dyngen registers
- remove ppc_gpr_t type
- define 64-bit dyngen registers for GPE register on 32-bit targets
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5154 c046a42c-6fe2-441c-8c8c-71466251a162
Replace op_load_gpr_{T0,T1,T2} and op_store_{T0,T1,T2} with tcg_gen_mov_tl.
Introduce TCG variables cpu_gpr[0..31].
For the SPE extension, assure that ppc_gpr_t is only uint64_t for ppc64.
Introduce TCG variables cpu_gprh[0..31] for upper 32 bits on ppc and helpers
gen_{load,store}_gpr64. Based on suggestions by Aurelien, Thiemo and Blue.
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5153 c046a42c-6fe2-441c-8c8c-71466251a162
The attached patch replaces gen_set_T0 and gen_set_T1 with
tcg_gen_movi_tl.
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5136 c046a42c-6fe2-441c-8c8c-71466251a162
Save and restore env->interrupt_request and env->halted.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4817 c046a42c-6fe2-441c-8c8c-71466251a162
The patch below changes the way to enable softfloat on the PPC target. It
is now enabled when softfloat is used. The rationale behind this change
is that persons who want precise emulation prefer precision over emulation
speed.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4168 c046a42c-6fe2-441c-8c8c-71466251a162
The patch below adds isfinite() and isnormal() functions which can
work with float64 type, used when CONFIG_SOFTFLOAT=yes.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4048 c046a42c-6fe2-441c-8c8c-71466251a162
The patch below uses the float32 and float64 types instead of the float
and double types in the PPC code. This doesn't change anything when
using softfloat-native as the types are the same, but that helps
compiling the PPC target with softfloat.
It also defines a new union CPU_FloatU in addition to CPU_DoubleU, and
use them instead of identical unions that are defined in numerous
places.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4047 c046a42c-6fe2-441c-8c8c-71466251a162
The patch below fixes the computation of FPSCR_VX and FPSCR_FEX when
using the mtfsf instruction. As stated in the PowerPC manual the mtfsf
instruction can't alter those bit, and thus it should always be
computed.
Acked by Jocelyn Mayer.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4034 c046a42c-6fe2-441c-8c8c-71466251a162
size or zero extension, with homogenous names.
Fix load & store strings: those are now endian-sensitive, by definition.
Fix dcbz: must always align the target address to a cache line boundary.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3719 c046a42c-6fe2-441c-8c8c-71466251a162
tend more to propagate bugged definition than simplify the code.
Check and fix PowerPC 6xx implementations definitions.
Misc fixes in PowerPC CPU list.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3707 c046a42c-6fe2-441c-8c8c-71466251a162
- hrfid is part of the hypervisor extension
- fix stfiwx naming
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3705 c046a42c-6fe2-441c-8c8c-71466251a162
Use it to properly initialize the clock for the PreP target.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3701 c046a42c-6fe2-441c-8c8c-71466251a162
ie MPC5xx, MPC8xx, e200, e300, e500 and e600 cores.
Make those CPUs and PowerPC 440 available for user-mode emulation,
thus providing a way of testing their implementation specific instructions.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3681 c046a42c-6fe2-441c-8c8c-71466251a162
in order to implement Freescale cores.
Fix efsadd / efssub opcodes.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3679 c046a42c-6fe2-441c-8c8c-71466251a162
Remove TARGET_PPC64 dependency and add code provision to be able
to define a fake 32 bits CPU with hypervisor feature support.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3678 c046a42c-6fe2-441c-8c8c-71466251a162
Use proper INPUT_NB definitions to allocate PowerPC input pins structure,
fixing a buffer overflow in the 6xx bus case.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3659 c046a42c-6fe2-441c-8c8c-71466251a162
Always make the hypervisor timers available.
Remove all TARGET_PPC64H checks, keeping a few if (0) tests for cases
that cannot be properly handled with the current PowerPC CPU definition.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3656 c046a42c-6fe2-441c-8c8c-71466251a162
available for full system emulation, then removing all #if TARGET_PPC64H
from micro-ops and code translator.
Add new macros to dramatically simplify memory access tables definitions
in target-ppc/translate.c.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3654 c046a42c-6fe2-441c-8c8c-71466251a162
now that the SPE extension is available for all targets,
we always need to have some 64 bits temporary registers.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3647 c046a42c-6fe2-441c-8c8c-71466251a162
adding gprh registers to store GPR MSBs when GPRs are 32 bits.
Remove not-needed-anymore ppcemb-linux-user target.
Keep ppcemb-softmmu target, which provides 1kB pages support
and 36 bits physical address space.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3628 c046a42c-6fe2-441c-8c8c-71466251a162
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
