Fix typo in comment, by Andreas Faerber.
[qemu/dscho.git] / target-ppc / exec.h
blob69807ad5e74143b2b6a1c8d10948e50e26df08e2
1 /*
2 * PowerPC emulation definitions for qemu.
3 *
4 * Copyright (c) 2003-2007 Jocelyn Mayer
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #if !defined (__PPC_H__)
21 #define __PPC_H__
23 #include "config.h"
25 #include "dyngen-exec.h"
27 #include "cpu.h"
28 #include "exec-all.h"
30 /* For normal operations, precise emulation should not be needed */
31 //#define USE_PRECISE_EMULATION 1
32 #define USE_PRECISE_EMULATION 0
34 register struct CPUPPCState *env asm(AREG0);
35 #if TARGET_LONG_BITS > HOST_LONG_BITS
36 /* no registers can be used */
37 #define T0 (env->t0)
38 #define T1 (env->t1)
39 #define T2 (env->t2)
40 #else
41 register unsigned long T0 asm(AREG1);
42 register unsigned long T1 asm(AREG2);
43 register unsigned long T2 asm(AREG3);
44 #endif
45 /* We may, sometime, need 64 bits registers on 32 bits target */
46 #if TARGET_GPR_BITS > HOST_LONG_BITS
47 /* no registers can be used */
48 #define T0_64 (env->t0)
49 #define T1_64 (env->t1)
50 #define T2_64 (env->t2)
51 #else
52 #define T0_64 T0
53 #define T1_64 T1
54 #define T2_64 T2
55 #endif
56 /* Provision for Altivec */
57 #define T0_avr (env->t0_avr)
58 #define T1_avr (env->t1_avr)
59 #define T2_avr (env->t2_avr)
61 /* XXX: to clean: remove this mess */
62 #define PARAM(n) ((uint32_t)PARAM##n)
63 #define SPARAM(n) ((int32_t)PARAM##n)
65 #define FT0 (env->ft0)
66 #define FT1 (env->ft1)
67 #define FT2 (env->ft2)
69 #if defined (DEBUG_OP)
70 # define RETURN() __asm__ __volatile__("nop" : : : "memory");
71 #else
72 # define RETURN() __asm__ __volatile__("" : : : "memory");
73 #endif
75 static inline target_ulong rotl8 (target_ulong i, int n)
77 return (((uint8_t)i << n) | ((uint8_t)i >> (8 - n)));
80 static inline target_ulong rotl16 (target_ulong i, int n)
82 return (((uint16_t)i << n) | ((uint16_t)i >> (16 - n)));
85 static inline target_ulong rotl32 (target_ulong i, int n)
87 return (((uint32_t)i << n) | ((uint32_t)i >> (32 - n)));
90 #if defined(TARGET_PPC64)
91 static inline target_ulong rotl64 (target_ulong i, int n)
93 return (((uint64_t)i << n) | ((uint64_t)i >> (64 - n)));
95 #endif
97 #if !defined(CONFIG_USER_ONLY)
98 #include "softmmu_exec.h"
99 #endif /* !defined(CONFIG_USER_ONLY) */
101 void do_raise_exception_err (uint32_t exception, int error_code);
102 void do_raise_exception (uint32_t exception);
104 int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong vaddr,
105 int rw, int access_type, int check_BATs);
107 void ppc6xx_tlb_invalidate_all (CPUState *env);
108 void ppc6xx_tlb_invalidate_virt (CPUState *env, target_ulong eaddr,
109 int is_code);
110 void ppc6xx_tlb_store (CPUState *env, target_ulong EPN, int way, int is_code,
111 target_ulong pte0, target_ulong pte1);
112 void ppc4xx_tlb_invalidate_all (CPUState *env);
114 static inline void env_to_regs(void)
118 static inline void regs_to_env(void)
122 int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
123 int is_user, int is_softmmu);
125 static inline int cpu_halted(CPUState *env) {
126 if (!env->halted)
127 return 0;
128 if (env->msr[MSR_EE] && (env->interrupt_request & CPU_INTERRUPT_HARD)) {
129 env->halted = 0;
130 return 0;
132 return EXCP_HALTED;
135 #endif /* !defined (__PPC_H__) */