71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
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* ARM virtual CPU header
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*
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* Copyright (c) 2003 Fabrice Bellard
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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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#ifndef CPU_ARM_H
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#define CPU_ARM_H
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#define TARGET_LONG_BITS 32
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#include "cpu-defs.h"
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#define EXCP_UDEF 1 /* undefined instruction */
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#define EXCP_SWI 2 /* software interrupt */
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typedef struct CPUARMState {
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uint32_t regs[16];
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uint32_t cpsr;
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/* cpsr flag cache for faster execution */
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uint32_t CF; /* 0 or 1 */
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uint32_t VF; /* V is the bit 31. All other bits are undefined */
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uint32_t NZF; /* N is bit 31. Z is computed from NZF */
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/* exception/interrupt handling */
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jmp_buf jmp_env;
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int exception_index;
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int interrupt_request;
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struct TranslationBlock *current_tb;
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int user_mode_only;
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/* in order to avoid passing too many arguments to the memory
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write helpers, we store some rarely used information in the CPU
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context) */
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unsigned long mem_write_pc; /* host pc at which the memory was
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written */
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unsigned long mem_write_vaddr; /* target virtual addr at which the
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memory was written */
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/* user data */
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void *opaque;
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} CPUARMState;
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CPUARMState *cpu_arm_init(void);
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int cpu_arm_exec(CPUARMState *s);
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void cpu_arm_close(CPUARMState *s);
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/* you can call this signal handler from your SIGBUS and SIGSEGV
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signal handlers to inform the virtual CPU of exceptions. non zero
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is returned if the signal was handled by the virtual CPU. */
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struct siginfo;
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int cpu_arm_signal_handler(int host_signum, struct siginfo *info,
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void *puc);
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#define TARGET_PAGE_BITS 12
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#include "cpu-all.h"
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#endif
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