arch/nios2/include/asm/opcodes.h

   1 /*
   2  * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
   3  * Scott McNutt <smcnutt@psyent.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef __ASM_NIOS2_OPCODES_H_
   9 #define __ASM_NIOS2_OPCODES_H_
  10
  11 #define OPCODE_OP(inst) ((inst) & 0x3f)
  12 #define OPCODE_OPX(inst) (((inst)>>11) & 0x3f)
  13 #define OPCODE_RA(inst) (((inst)>>27) & 01f)
  14 #define OPCODE_RB(inst) (((inst)>>22) & 01f)
  15 #define OPCODE_RC(inst) (((inst)>>17) & 01f)
  16
  17 /* I-TYPE (immediate) and J-TYPE (jump) opcodes
  18  */
  19 #define OPCODE_CALL     0x00
  20 #define OPCODE_LDBU     0x03
  21 #define OPCODE_ADDI     0x04
  22 #define OPCODE_STB      0x05
  23 #define OPCODE_BR       0x06
  24 #define OPCODE_LDB      0x07
  25 #define OPCODE_CMPGEI   0x08
  26 #define OPCODE_LDHU     0x0B
  27 #define OPCODE_ANDI     0x0C
  28 #define OPCODE_STH      0x0D
  29 #define OPCODE_BGE      0x0E
  30 #define OPCODE_LDH      0x0F
  31 #define OPCODE_CMPLTI   0x10
  32 #define OPCODE_XORI     0x1C
  33 #define OPCODE_ORI      0x14
  34 #define OPCODE_STW      0x15
  35 #define OPCODE_BLT      0x16
  36 #define OPCODE_LDW      0x17
  37 #define OPCODE_CMPNEI   0x18
  38 #define OPCODE_BNE      0x1E
  39 #define OPCODE_CMPEQI   0x20
  40 #define OPCODE_LDBUIO   0x23
  41 #define OPCODE_MULI     0x24
  42 #define OPCODE_STBIO    0x25
  43 #define OPCODE_BEQ      0x26
  44 #define OPCODE_LDBIO    0x27
  45 #define OPCODE_CMPGEUI  0x28
  46 #define OPCODE_ANDHI    0x2C
  47 #define OPCODE_STHIO    0x2D
  48 #define OPCODE_BGEU     0x2E
  49 #define OPCODE_LDHIO    0x2F
  50 #define OPCODE_CMPLTUI  0x30
  51 #define OPCODE_CUSTOM   0x32
  52 #define OPCODE_INITD    0x33
  53 #define OPCODE_ORHI     0x34
  54 #define OPCODE_STWIO    0x35
  55 #define OPCODE_BLTU     0x36
  56 #define OPCODE_LDWIO    0x37
  57 #define OPCODE_RTYPE    0x3A
  58 #define OPCODE_LDHUIO   0x2B
  59 #define OPCODE_FLUSHD   0x3B
  60 #define OPCODE_XORHI    0x3C
  61
  62 /* R-Type (register) OPX field encodings
  63  */
  64 #define OPCODE_ERET     0x01
  65 #define OPCODE_ROLI     0x02
  66 #define OPCODE_ROL      0x03
  67 #define OPCODE_FLUSHP   0x04
  68 #define OPCODE_RET      0x05
  69 #define OPCODE_NOR      0x06
  70 #define OPCODE_MULXUU   0x07
  71 #define OPCODE_CMPGE    0x08
  72 #define OPCODE_BRET     0x09
  73 #define OPCODE_ROR      0x0B
  74 #define OPCODE_FLUSHI   0x0C
  75 #define OPCODE_JMP      0x0D
  76 #define OPCODE_AND      0x0E
  77
  78 #define OPCODE_CMPLT    0x10
  79 #define OPCODE_SLLI     0x12
  80 #define OPCODE_SLL      0x13
  81 #define OPCODE_OR       0x16
  82 #define OPCODE_MULXSU   0x17
  83 #define OPCODE_CMPNE    0x18
  84 #define OPCODE_SRLI     0x1A
  85 #define OPCODE_SRL      0x1B
  86 #define OPCODE_NEXTPC   0x1C
  87 #define OPCODE_CALLR    0x1D
  88 #define OPCODE_XOR      0x1E
  89 #define OPCODE_MULXSS   0x1F
  90
  91 #define OPCODE_CMPEQ    0x20
  92 #define OPCODE_CMPLTU   0x30
  93 #define OPCODE_ADD      0x31
  94 #define OPCODE_DIVU     0x24
  95 #define OPCODE_DIV      0x25
  96 #define OPCODE_RDCTL    0x26
  97 #define OPCODE_MUL      0x27
  98 #define OPCODE_CMPGEU   0x28
  99 #define OPCODE_TRAP     0x2D
 100 #define OPCODE_WRCTL    0x2E
 101
 102 #define OPCODE_BREAK    0x34
 103 #define OPCODE_SYNC     0x36
 104 #define OPCODE_INITI    0x29
 105 #define OPCODE_SUB      0x39
 106 #define OPCODE_SRAI     0x3A
 107 #define OPCODE_SRA      0x3B
 108
 109 /*Full instruction encodings for R-Type, without the R's ;-)
 110  *
 111  * TODO: BREAK, BRET, ERET, RET, SYNC (as needed)
 112  */
 113 #define OPC_TRAP        0x003b683a
 114
 115 #endif /* __ASM_NIOS2_OPCODES_H_ */