qemu/target-ppc/helper.c

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/*
* PowerPC emulation helpers for QEMU.
*
Great PowerPC emulation code resynchronisation and improvments: - Add status file to make regression tracking easier - Move all micro-operations helpers definitions into a separate header: should never be seen outside of op.c - Update copyrights - Add new / missing PowerPC CPU definitions - Add definitions for PowerPC BookE - Add support for PowerPC 6xx/7xx software driven TLBs Allow use of PowerPC 603 as an example - Add preliminary code for POWER, POWER2, PowerPC 403, 405, 440, 601, 602 and BookE support - Avoid compiling priviledged only resources support for user-mode emulation - Remove unused helpers / micro-ops / dead code - Add instructions usage statistics dump: useful to figure which instructions need strong optimizations. - Micro-operation fixes: * add missing RETURN in some micro-ops * fix prototypes * use softfloat routines for all floating-point operations * fix tlbie instruction * move some huge micro-operations into helpers - emulation fixes: * fix inverted opcodes for fcmpo / fcmpu * condition register update is always to be done after the whole instruction has completed * add missing NIP updates when calling helpers that may generate an exception - optimizations and improvments: * optimize very often used instructions (li, mr, rlwixx...) * remove specific micro-ops for rarely used instructions * add routines for addresses computations to avoid bugs due to multiple different implementations * fix TB linking: do not reset T0 at the end of every TB. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2473 c046a42c-6fe2-441c-8c8c-71466251a162
2007-03-07 11:32:30 +03:00
* Copyright (c) 2003-2007 Jocelyn Mayer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "cpu.h"
#include "helper_regs.h"
#include "kvm.h"
#include "kvm_ppc.h"
#include "cpus.h"
PowerPCCPU *cpu_ppc_init(const char *cpu_model)
{
PowerPCCPU *cpu;
CPUPPCState *env;
const ppc_def_t *def;
def = cpu_ppc_find_by_name(cpu_model);
if (!def) {
return NULL;
}
cpu = POWERPC_CPU(object_new(TYPE_POWERPC_CPU));
env = &cpu->env;
if (tcg_enabled()) {
ppc_translate_init();
}
env->cpu_model_str = cpu_model;
cpu_ppc_register_internal(env, def);
qemu_init_vcpu(env);
return cpu;
}