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faadf50e29
* 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
129 lines
3.5 KiB
C
129 lines
3.5 KiB
C
/*
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* PowerPC emulation definitions for qemu.
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*
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* Copyright (c) 2003-2007 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#if !defined (__PPC_H__)
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#define __PPC_H__
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#include "config.h"
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#include "dyngen-exec.h"
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#include "cpu.h"
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#include "exec-all.h"
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/* For normal operations, precise emulation should not be needed */
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//#define USE_PRECISE_EMULATION 1
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#define USE_PRECISE_EMULATION 0
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register struct CPUPPCState *env asm(AREG0);
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#if TARGET_LONG_BITS > HOST_LONG_BITS
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/* no registers can be used */
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#define T0 (env->t0)
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#define T1 (env->t1)
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#define T2 (env->t2)
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#else
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register unsigned long T0 asm(AREG1);
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register unsigned long T1 asm(AREG2);
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register unsigned long T2 asm(AREG3);
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#endif
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/* We may, sometime, need 64 bits registers on 32 bits target */
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#if TARGET_GPR_BITS > HOST_LONG_BITS
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/* no registers can be used */
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#define T0_64 (env->t0)
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#define T1_64 (env->t1)
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#define T2_64 (env->t2)
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#else
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#define T0_64 T0
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#define T1_64 T1
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#define T2_64 T2
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#endif
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/* Provision for Altivec */
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#define AVR0 (env->avr0)
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#define AVR1 (env->avr1)
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#define AVR2 (env->avr2)
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#define FT0 (env->ft0)
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#define FT1 (env->ft1)
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#define FT2 (env->ft2)
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#if defined (DEBUG_OP)
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# define RETURN() __asm__ __volatile__("nop" : : : "memory");
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#else
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# define RETURN() __asm__ __volatile__("" : : : "memory");
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#endif
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static always_inline target_ulong rotl8 (target_ulong i, int n)
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{
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return (((uint8_t)i << n) | ((uint8_t)i >> (8 - n)));
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}
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static always_inline target_ulong rotl16 (target_ulong i, int n)
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{
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return (((uint16_t)i << n) | ((uint16_t)i >> (16 - n)));
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}
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static always_inline target_ulong rotl32 (target_ulong i, int n)
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{
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return (((uint32_t)i << n) | ((uint32_t)i >> (32 - n)));
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}
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#if defined(TARGET_PPC64)
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static always_inline target_ulong rotl64 (target_ulong i, int n)
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{
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return (((uint64_t)i << n) | ((uint64_t)i >> (64 - n)));
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}
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#endif
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#if !defined(CONFIG_USER_ONLY)
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#include "softmmu_exec.h"
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#endif /* !defined(CONFIG_USER_ONLY) */
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void do_raise_exception_err (uint32_t exception, int error_code);
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void do_raise_exception (uint32_t exception);
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int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong vaddr,
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int rw, int access_type);
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void ppc6xx_tlb_store (CPUState *env, target_ulong EPN, int way, int is_code,
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target_ulong pte0, target_ulong pte1);
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static always_inline void env_to_regs (void)
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{
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}
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static always_inline void regs_to_env (void)
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{
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}
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int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
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int mmu_idx, int is_softmmu);
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static always_inline int cpu_halted (CPUState *env)
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{
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if (!env->halted)
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return 0;
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if (msr_ee && (env->interrupt_request & CPU_INTERRUPT_HARD)) {
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env->halted = 0;
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return 0;
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}
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return EXCP_HALTED;
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}
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#endif /* !defined (__PPC_H__) */
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