target-alpha/exec.h

   1 /*
   2  *  Alpha emulation cpu run-time definitions for qemu.
   3  *
   4  *  Copyright (c) 2007 Jocelyn Mayer
   5  *
   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.
  10  *
  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.
  15  *
  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
  19  */
  20
  21 #if !defined (__ALPHA_EXEC_H__)
  22 #define __ALPHA_EXEC_H__
  23
  24 #include "config.h"
  25
  26 #include "dyngen-exec.h"
  27
  28 #define TARGET_LONG_BITS 64
  29
  30 register struct CPUAlphaState *env asm(AREG0);
  31
  32 #if TARGET_LONG_BITS > HOST_LONG_BITS
  33
  34 /* no registers can be used */
  35 #define T0 (env->t0)
  36 #define T1 (env->t1)
  37 #define T2 (env->t2)
  38
  39 #else
  40
  41 register uint64_t T0 asm(AREG1);
  42 register uint64_t T1 asm(AREG2);
  43 register uint64_t T2 asm(AREG3);
  44
  45 #endif /* TARGET_LONG_BITS > HOST_LONG_BITS */
  46
  47 #define PARAM(n) ((uint64_t)PARAM##n)
  48 #define SPARAM(n) ((int32_t)PARAM##n)
  49 #define FT0 (env->ft0)
  50 #define FT1 (env->ft1)
  51 #define FT2 (env->ft2)
  52 #define FP_STATUS (env->fp_status)
  53
  54 #if defined (DEBUG_OP)
  55 #define RETURN() __asm__ __volatile__("nop" : : : "memory");
  56 #else
  57 #define RETURN() __asm__ __volatile__("" : : : "memory");
  58 #endif
  59
  60 #include "cpu.h"
  61 #include "exec-all.h"
  62
  63 #if !defined(CONFIG_USER_ONLY)
  64 #include "softmmu_exec.h"
  65 #endif /* !defined(CONFIG_USER_ONLY) */
  66
  67 static always_inline void env_to_regs(void)
  68 {
  69 }
  70
  71 static always_inline void regs_to_env(void)
  72 {
  73 }
  74
  75 int cpu_alpha_handle_mmu_fault (CPUState *env, uint64_t address, int rw,
  76                                 int mmu_idx, int is_softmmu);
  77 int cpu_alpha_mfpr (CPUState *env, int iprn, uint64_t *valp);
  78 int cpu_alpha_mtpr (CPUState *env, int iprn, uint64_t val, uint64_t *oldvalp);
  79
  80 void do_interrupt (CPUState *env);
  81
  82 static always_inline int cpu_halted(CPUState *env) {
  83     if (!env->halted)
  84         return 0;
  85     if (env->interrupt_request & CPU_INTERRUPT_HARD) {
  86         env->halted = 0;
  87         return 0;
  88     }
  89     return EXCP_HALTED;
  90 }
  91
  92 #endif /* !defined (__ALPHA_EXEC_H__) */