LXR qemu/tcg/mips/tcg-target.h

   1/*
   2 * Tiny Code Generator for QEMU
   3 *
   4 * Copyright (c) 2008-2009 Arnaud Patard <arnaud.patard@rtp-net.org>
   5 * Copyright (c) 2009 Aurelien Jarno <aurelien@aurel32.net>
   6 * Based on i386/tcg-target.c - Copyright (c) 2008 Fabrice Bellard
   7 *
   8 * Permission is hereby granted, free of charge, to any person obtaining a copy
   9 * of this software and associated documentation files (the "Software"), to deal
  10 * in the Software without restriction, including without limitation the rights
  11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 * copies of the Software, and to permit persons to whom the Software is
  13 * furnished to do so, subject to the following conditions:
  14 *
  15 * The above copyright notice and this permission notice shall be included in
  16 * all copies or substantial portions of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24 * THE SOFTWARE.
  25 */
  26#define TCG_TARGET_MIPS 1
  27
  28#ifdef __MIPSEB__
  29# define TCG_TARGET_WORDS_BIGENDIAN
  30#endif
  31
  32#define TCG_TARGET_NB_REGS 32
  33
  34typedef enum {
  35    TCG_REG_ZERO = 0,
  36    TCG_REG_AT,
  37    TCG_REG_V0,
  38    TCG_REG_V1,
  39    TCG_REG_A0,
  40    TCG_REG_A1,
  41    TCG_REG_A2,
  42    TCG_REG_A3,
  43    TCG_REG_T0,
  44    TCG_REG_T1,
  45    TCG_REG_T2,
  46    TCG_REG_T3,
  47    TCG_REG_T4,
  48    TCG_REG_T5,
  49    TCG_REG_T6,
  50    TCG_REG_T7,
  51    TCG_REG_S0,
  52    TCG_REG_S1,
  53    TCG_REG_S2,
  54    TCG_REG_S3,
  55    TCG_REG_S4,
  56    TCG_REG_S5,
  57    TCG_REG_S6,
  58    TCG_REG_S7,
  59    TCG_REG_T8,
  60    TCG_REG_T9,
  61    TCG_REG_K0,
  62    TCG_REG_K1,
  63    TCG_REG_GP,
  64    TCG_REG_SP,
  65    TCG_REG_FP,
  66    TCG_REG_RA,
  67} TCGReg;
  68
  69#define TCG_CT_CONST_ZERO 0x100
  70#define TCG_CT_CONST_U16  0x200
  71#define TCG_CT_CONST_S16  0x400
  72
  73/* used for function call generation */
  74#define TCG_REG_CALL_STACK TCG_REG_SP
  75#define TCG_TARGET_STACK_ALIGN 8
  76#define TCG_TARGET_CALL_STACK_OFFSET 16
  77#define TCG_TARGET_CALL_ALIGN_ARGS 1
  78
  79/* optional instructions */
  80#define TCG_TARGET_HAS_div_i32          1
  81#define TCG_TARGET_HAS_not_i32          1
  82#define TCG_TARGET_HAS_nor_i32          1
  83#define TCG_TARGET_HAS_rot_i32          0
  84#define TCG_TARGET_HAS_ext8s_i32        1
  85#define TCG_TARGET_HAS_ext16s_i32       1
  86#define TCG_TARGET_HAS_bswap32_i32      0
  87#define TCG_TARGET_HAS_bswap16_i32      0
  88#define TCG_TARGET_HAS_andc_i32         0
  89#define TCG_TARGET_HAS_orc_i32          0
  90#define TCG_TARGET_HAS_eqv_i32          0
  91#define TCG_TARGET_HAS_nand_i32         0
  92#define TCG_TARGET_HAS_deposit_i32      0
  93
  94/* optional instructions automatically implemented */
  95#define TCG_TARGET_HAS_neg_i32          0 /* sub  rd, zero, rt   */
  96#define TCG_TARGET_HAS_ext8u_i32        0 /* andi rt, rs, 0xff   */
  97#define TCG_TARGET_HAS_ext16u_i32       0 /* andi rt, rs, 0xffff */
  98
  99/* Note: must be synced with dyngen-exec.h */
 100#define TCG_AREG0 TCG_REG_S0
 101
 102/* guest base is supported */
 103#define TCG_TARGET_HAS_GUEST_BASE
 104
 105#ifdef __OpenBSD__
 106#include <machine/sysarch.h>
 107#else
 108#include <sys/cachectl.h>
 109#endif
 110
 111static inline void flush_icache_range(tcg_target_ulong start,
 112                                      tcg_target_ulong stop)
 113{
 114    cacheflush ((void *)start, stop-start, ICACHE);
 115}
 116