include/asm-nios2/opcodes.h

   1 /*
   2  * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
   3  * Scott McNutt <smcnutt@psyent.com>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #ifndef __ASM_NIOS2_OPCODES_H_
  25 #define __ASM_NIOS2_OPCODES_H_
  26
  27 #define OPCODE_OP(inst) ((inst) & 0x3f)
  28 #define OPCODE_OPX(inst) (((inst)>>11) & 0x3f)
  29 #define OPCODE_RA(inst) (((inst)>>27) & 01f)
  30 #define OPCODE_RB(inst) (((inst)>>22) & 01f)
  31 #define OPCODE_RC(inst) (((inst)>>17) & 01f)
  32
  33 /* I-TYPE (immediate) and J-TYPE (jump) opcodes
  34  */
  35 #define OPCODE_CALL     0x00
  36 #define OPCODE_LDBU     0x03
  37 #define OPCODE_ADDI     0x04
  38 #define OPCODE_STB      0x05
  39 #define OPCODE_BR       0x06
  40 #define OPCODE_LDB      0x07
  41 #define OPCODE_CMPGEI   0x08
  42 #define OPCODE_LDHU     0x0B
  43 #define OPCODE_ANDI     0x0C
  44 #define OPCODE_STH      0x0D
  45 #define OPCODE_BGE      0x0E
  46 #define OPCODE_LDH      0x0F
  47 #define OPCODE_CMPLTI   0x10
  48 #define OPCODE_XORI     0x1C
  49 #define OPCODE_ORI      0x14
  50 #define OPCODE_STW      0x15
  51 #define OPCODE_BLT      0x16
  52 #define OPCODE_LDW      0x17
  53 #define OPCODE_CMPNEI   0x18
  54 #define OPCODE_BNE      0x1E
  55 #define OPCODE_CMPEQI   0x20
  56 #define OPCODE_LDBUIO   0x23
  57 #define OPCODE_MULI     0x24
  58 #define OPCODE_STBIO    0x25
  59 #define OPCODE_BEQ      0x26
  60 #define OPCODE_LDBIO    0x27
  61 #define OPCODE_CMPGEUI  0x28
  62 #define OPCODE_ANDHI    0x2C
  63 #define OPCODE_STHIO    0x2D
  64 #define OPCODE_BGEU     0x2E
  65 #define OPCODE_LDHIO    0x2F
  66 #define OPCODE_CMPLTUI  0x30
  67 #define OPCODE_CUSTOM   0x32
  68 #define OPCODE_INITD    0x33
  69 #define OPCODE_ORHI     0x34
  70 #define OPCODE_STWIO    0x35
  71 #define OPCODE_BLTU     0x36
  72 #define OPCODE_LDWIO    0x37
  73 #define OPCODE_RTYPE    0x3A
  74 #define OPCODE_LDHUIO   0x2B
  75 #define OPCODE_FLUSHD   0x3B
  76 #define OPCODE_XORHI    0x3C
  77
  78 /* R-Type (register) OPX field encodings
  79  */
  80 #define OPCODE_ERET     0x01
  81 #define OPCODE_ROLI     0x02
  82 #define OPCODE_ROL      0x03
  83 #define OPCODE_FLUSHP   0x04
  84 #define OPCODE_RET      0x05
  85 #define OPCODE_NOR      0x06
  86 #define OPCODE_MULXUU   0x07
  87 #define OPCODE_CMPGE    0x08
  88 #define OPCODE_BRET     0x09
  89 #define OPCODE_ROR      0x0B
  90 #define OPCODE_FLUSHI   0x0C
  91 #define OPCODE_JMP      0x0D
  92 #define OPCODE_AND      0x0E
  93
  94 #define OPCODE_CMPLT    0x10
  95 #define OPCODE_SLLI     0x12
  96 #define OPCODE_SLL      0x13
  97 #define OPCODE_OR       0x16
  98 #define OPCODE_MULXSU   0x17
  99 #define OPCODE_CMPNE    0x18
 100 #define OPCODE_SRLI     0x1A
 101 #define OPCODE_SRL      0x1B
 102 #define OPCODE_NEXTPC   0x1C
 103 #define OPCODE_CALLR    0x1D
 104 #define OPCODE_XOR      0x1E
 105 #define OPCODE_MULXSS   0x1F
 106
 107 #define OPCODE_CMPEQ    0x20
 108 #define OPCODE_CMPLTU   0x30
 109 #define OPCODE_ADD      0x31
 110 #define OPCODE_DIVU     0x24
 111 #define OPCODE_DIV      0x25
 112 #define OPCODE_RDCTL    0x26
 113 #define OPCODE_MUL      0x27
 114 #define OPCODE_CMPGEU   0x28
 115 #define OPCODE_TRAP     0x2D
 116 #define OPCODE_WRCTL    0x2E
 117
 118 #define OPCODE_BREAK    0x34
 119 #define OPCODE_SYNC     0x36
 120 #define OPCODE_INITI    0x29
 121 #define OPCODE_SUB      0x39
 122 #define OPCODE_SRAI     0x3A
 123 #define OPCODE_SRA      0x3B
 124
 125 /*Full instruction encodings for R-Type, without the R's ;-)
 126  *
 127  * TODO: BREAK, BRET, ERET, RET, SYNC (as needed)
 128  */
 129 #define OPC_TRAP        0x003b683a
 130
 131 #endif /* __ASM_NIOS2_OPCODES_H_ */