target-microblaze/microblaze-decode.h

   1 /*
   2  *  MicroBlaze insn decoding macros.
   3  *
   4  *  Copyright (c) 2009 Edgar E. Iglesias <edgar.iglesias@gmail.com>
   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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 /* Convenient binary macros.  */
  21 #define HEX__(n) 0x##n##LU
  22 #define B8__(x) ((x&0x0000000FLU)?1:0) \
  23                  + ((x&0x000000F0LU)?2:0) \
  24                  + ((x&0x00000F00LU)?4:0) \
  25                  + ((x&0x0000F000LU)?8:0) \
  26                  + ((x&0x000F0000LU)?16:0) \
  27                  + ((x&0x00F00000LU)?32:0) \
  28                  + ((x&0x0F000000LU)?64:0) \
  29                  + ((x&0xF0000000LU)?128:0)
  30 #define B8(d) ((unsigned char)B8__(HEX__(d)))
  31
  32 /* Decode logic, mask and value.  */
  33 #define DEC_ADD     {B8(00000000), B8(00110001)}
  34 #define DEC_SUB     {B8(00000001), B8(00110001)}
  35 #define DEC_AND     {B8(00100001), B8(00110101)}
  36 #define DEC_XOR     {B8(00100010), B8(00110111)}
  37 #define DEC_OR      {B8(00100000), B8(00110111)}
  38 #define DEC_BIT     {B8(00100100), B8(00111111)}
  39 #define DEC_MSR     {B8(00100101), B8(00111111)}
  40
  41 #define DEC_BARREL  {B8(00010001), B8(00110111)}
  42 #define DEC_MUL     {B8(00010000), B8(00110111)}
  43 #define DEC_DIV     {B8(00010010), B8(00110111)}
  44
  45 #define DEC_LD      {B8(00110000), B8(00110100)}
  46 #define DEC_ST      {B8(00110100), B8(00110100)}
  47 #define DEC_IMM     {B8(00101100), B8(00111111)}
  48
  49 #define DEC_BR      {B8(00100110), B8(00110111)}
  50 #define DEC_BCC     {B8(00100111), B8(00110111)}
  51 #define DEC_RTS     {B8(00101101), B8(00111111)}