x86/regs.dat

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   3 ##   Copyright 1996-2009 The NASM Authors - All Rights Reserved
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  31 ##
  32 ## --------------------------------------------------------------------------
  33
  34 #
  35 # List of registers and their classes; classes are defined in nasm.h
  36 #
  37 # The columns are:
  38 #
  39 # register name, assembler class, disassembler class(es), x86 register number[, token flag]
  40 #
  41 # If the register name ends in two numbers separated by a dash, then it is
  42 # repeated as many times as indicated, and the register number is
  43 # updated with it.
  44 #
  45 # If 'token flag' is present, this value will be assigned to tokflag field in
  46 # 'struct tokendata tokendata[]' table. Token flag can be used for specifying
  47 # special usage of corresponding register. E.g. opmask registers can be either
  48 # enclosed by curly braces or standalone operand depending on the usage.
  49 #
  50
  51 # General-purpose registers
  52 al      REG_AL          reg8,reg8_rex   0
  53 ah      REG_HIGH        reg8            4
  54 ax      REG_AX          reg16           0
  55 eax     REG_EAX         reg32           0
  56 rax     REG_RAX         reg64           0
  57 bl      REG8NA          reg8,reg8_rex   3
  58 bh      REG_HIGH        reg8            7
  59 bx      REG16NA         reg16           3
  60 ebx     REG32NA         reg32           3
  61 rbx     REG64NA         reg64           3
  62 cl      REG_CL          reg8,reg8_rex   1
  63 ch      REG_HIGH        reg8            5
  64 cx      REG_CX          reg16           1
  65 ecx     REG_ECX         reg32           1
  66 rcx     REG_RCX         reg64           1
  67 dl      REG_DL          reg8,reg8_rex   2
  68 dh      REG_HIGH        reg8            6
  69 dx      REG_DX          reg16           2
  70 edx     REG_EDX         reg32           2
  71 rdx     REG_RDX         reg64           2
  72 spl     REG8NA          reg8_rex        4
  73 sp      REG16NA         reg16           4
  74 esp     REG32NA         reg32           4
  75 rsp     REG64NA         reg64           4
  76 bpl     REG8NA          reg8_rex        5
  77 bp      REG16NA         reg16           5
  78 ebp     REG32NA         reg32           5
  79 rbp     REG64NA         reg64           5
  80 sil     REG8NA          reg8_rex        6
  81 si      REG16NA         reg16           6
  82 esi     REG32NA         reg32           6
  83 rsi     REG64NA         reg64           6
  84 dil     REG8NA          reg8_rex        7
  85 di      REG16NA         reg16           7
  86 edi     REG32NA         reg32           7
  87 rdi     REG64NA         reg64           7
  88 r8-15b  REG8NA          reg8_rex        8
  89 r8-15w  REG16NA         reg16           8
  90 r8-15d  REG32NA         reg32           8
  91 r8-15   REG64NA         reg64           8
  92
  93 # Segment registers
  94 es      REG_ES          sreg            0
  95 cs      REG_CS          sreg            1
  96 ss      REG_SS          sreg            2
  97 ds      REG_DS          sreg            3
  98 fs      REG_FS          sreg            4
  99 gs      REG_GS          sreg            5
 100 segr6-7 REG_SEG67       sreg            6
 101
 102 # Control registers
 103 cr0-15  REG_CREG        creg            0
 104
 105 # Debug registers
 106 dr0-15  REG_DREG        dreg            0
 107
 108 # Test registers
 109 tr0-7   REG_TREG        treg            0
 110
 111 # Floating-point registers
 112 st0     FPU0            fpureg          0
 113 st1-7   FPUREG          fpureg          1
 114
 115 # MMX registers
 116 mm0-7   MMXREG          mmxreg          0
 117
 118 # SSE registers
 119 xmm0    XMM0            xmmreg          0
 120 xmm1-15 XMM_L16         xmmreg          1
 121 xmm16-31        XMMREG          xmmreg          16
 122
 123 # AVX registers
 124 ymm0    YMM0            ymmreg          0
 125 ymm1-15 YMM_L16         ymmreg          1
 126 ymm16-31        YMMREG          ymmreg          16
 127
 128 # AVX512 registers
 129 zmm0    ZMM0            zmmreg          0
 130 zmm1-15 ZMM_L16         zmmreg          1
 131 zmm16-31        ZMMREG          zmmreg          16
 132
 133 # Opmask registers
 134 k0      OPMASK0         opmaskreg       0
 135 k1-7    OPMASKREG       opmaskreg       1   TFLAG_BRC_OPT
 136
 137 # Bounds registers
 138 bnd0-3  BNDREG          bndreg          0