github.com/FenixAra/go@v0.0.0-20170127160404-96ea0918e670/src/cmd/internal/obj/arm/a.out.go (about)

     1  // Inferno utils/5c/5.out.h
     2  // https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5c/5.out.h
     3  //
     4  //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
     5  //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
     6  //	Portions Copyright © 1997-1999 Vita Nuova Limited
     7  //	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
     8  //	Portions Copyright © 2004,2006 Bruce Ellis
     9  //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
    10  //	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
    11  //	Portions Copyright © 2009 The Go Authors. All rights reserved.
    12  //
    13  // Permission is hereby granted, free of charge, to any person obtaining a copy
    14  // of this software and associated documentation files (the "Software"), to deal
    15  // in the Software without restriction, including without limitation the rights
    16  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    17  // copies of the Software, and to permit persons to whom the Software is
    18  // furnished to do so, subject to the following conditions:
    19  //
    20  // The above copyright notice and this permission notice shall be included in
    21  // all copies or substantial portions of the Software.
    22  //
    23  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    24  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    25  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    26  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    27  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    28  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    29  // THE SOFTWARE.
    30  
    31  package arm
    32  
    33  import "cmd/internal/obj"
    34  
    35  //go:generate go run ../stringer.go -i $GOFILE -o anames.go -p arm
    36  
    37  const (
    38  	NSNAME = 8
    39  	NSYM   = 50
    40  	NREG   = 16
    41  )
    42  
    43  /* -1 disables use of REGARG */
    44  const (
    45  	REGARG = -1
    46  )
    47  
    48  const (
    49  	REG_R0 = obj.RBaseARM + iota // must be 16-aligned
    50  	REG_R1
    51  	REG_R2
    52  	REG_R3
    53  	REG_R4
    54  	REG_R5
    55  	REG_R6
    56  	REG_R7
    57  	REG_R8
    58  	REG_R9
    59  	REG_R10
    60  	REG_R11
    61  	REG_R12
    62  	REG_R13
    63  	REG_R14
    64  	REG_R15
    65  
    66  	REG_F0 // must be 16-aligned
    67  	REG_F1
    68  	REG_F2
    69  	REG_F3
    70  	REG_F4
    71  	REG_F5
    72  	REG_F6
    73  	REG_F7
    74  	REG_F8
    75  	REG_F9
    76  	REG_F10
    77  	REG_F11
    78  	REG_F12
    79  	REG_F13
    80  	REG_F14
    81  	REG_F15
    82  
    83  	REG_FPSR // must be 2-aligned
    84  	REG_FPCR
    85  
    86  	REG_CPSR // must be 2-aligned
    87  	REG_SPSR
    88  
    89  	MAXREG
    90  	REGRET = REG_R0
    91  	/* compiler allocates R1 up as temps */
    92  	/* compiler allocates register variables R3 up */
    93  	/* compiler allocates external registers R10 down */
    94  	REGEXT = REG_R10
    95  	/* these two registers are declared in runtime.h */
    96  	REGG = REGEXT - 0
    97  	REGM = REGEXT - 1
    98  
    99  	REGCTXT = REG_R7
   100  	REGTMP  = REG_R11
   101  	REGSP   = REG_R13
   102  	REGLINK = REG_R14
   103  	REGPC   = REG_R15
   104  
   105  	NFREG = 16
   106  	/* compiler allocates register variables F0 up */
   107  	/* compiler allocates external registers F7 down */
   108  	FREGRET = REG_F0
   109  	FREGEXT = REG_F7
   110  	FREGTMP = REG_F15
   111  )
   112  
   113  const (
   114  	C_NONE = iota
   115  	C_REG
   116  	C_REGREG
   117  	C_REGREG2
   118  	C_REGLIST
   119  	C_SHIFT
   120  	C_FREG
   121  	C_PSR
   122  	C_FCR
   123  
   124  	C_RCON /* 0xff rotated */
   125  	C_NCON /* ~RCON */
   126  	C_SCON /* 0xffff */
   127  	C_LCON
   128  	C_LCONADDR
   129  	C_ZFCON
   130  	C_SFCON
   131  	C_LFCON
   132  
   133  	C_RACON
   134  	C_LACON
   135  
   136  	C_SBRA
   137  	C_LBRA
   138  
   139  	C_HAUTO  /* halfword insn offset (-0xff to 0xff) */
   140  	C_FAUTO  /* float insn offset (0 to 0x3fc, word aligned) */
   141  	C_HFAUTO /* both H and F */
   142  	C_SAUTO  /* -0xfff to 0xfff */
   143  	C_LAUTO
   144  
   145  	C_HOREG
   146  	C_FOREG
   147  	C_HFOREG
   148  	C_SOREG
   149  	C_ROREG
   150  	C_SROREG /* both nil and R */
   151  	C_LOREG
   152  
   153  	C_PC
   154  	C_SP
   155  	C_HREG
   156  
   157  	C_ADDR /* reference to relocatable address */
   158  
   159  	// TLS "var" in local exec mode: will become a constant offset from
   160  	// thread local base that is ultimately chosen by the program linker.
   161  	C_TLS_LE
   162  
   163  	// TLS "var" in initial exec mode: will become a memory address (chosen
   164  	// by the program linker) that the dynamic linker will fill with the
   165  	// offset from the thread local base.
   166  	C_TLS_IE
   167  
   168  	C_TEXTSIZE
   169  
   170  	C_GOK
   171  
   172  	C_NCLASS /* must be the last */
   173  )
   174  
   175  const (
   176  	AAND = obj.ABaseARM + obj.A_ARCHSPECIFIC + iota
   177  	AEOR
   178  	ASUB
   179  	ARSB
   180  	AADD
   181  	AADC
   182  	ASBC
   183  	ARSC
   184  	ATST
   185  	ATEQ
   186  	ACMP
   187  	ACMN
   188  	AORR
   189  	ABIC
   190  
   191  	AMVN
   192  
   193  	/*
   194  	 * Do not reorder or fragment the conditional branch
   195  	 * opcodes, or the predication code will break
   196  	 */
   197  	ABEQ
   198  	ABNE
   199  	ABCS
   200  	ABHS
   201  	ABCC
   202  	ABLO
   203  	ABMI
   204  	ABPL
   205  	ABVS
   206  	ABVC
   207  	ABHI
   208  	ABLS
   209  	ABGE
   210  	ABLT
   211  	ABGT
   212  	ABLE
   213  
   214  	AMOVWD
   215  	AMOVWF
   216  	AMOVDW
   217  	AMOVFW
   218  	AMOVFD
   219  	AMOVDF
   220  	AMOVF
   221  	AMOVD
   222  
   223  	ACMPF
   224  	ACMPD
   225  	AADDF
   226  	AADDD
   227  	ASUBF
   228  	ASUBD
   229  	AMULF
   230  	AMULD
   231  	ADIVF
   232  	ADIVD
   233  	ASQRTF
   234  	ASQRTD
   235  	AABSF
   236  	AABSD
   237  	ANEGF
   238  	ANEGD
   239  
   240  	ASRL
   241  	ASRA
   242  	ASLL
   243  	AMULU
   244  	ADIVU
   245  	AMUL
   246  	ADIV
   247  	AMOD
   248  	AMODU
   249  
   250  	AMOVB
   251  	AMOVBS
   252  	AMOVBU
   253  	AMOVH
   254  	AMOVHS
   255  	AMOVHU
   256  	AMOVW
   257  	AMOVM
   258  	ASWPBU
   259  	ASWPW
   260  
   261  	ARFE
   262  	ASWI
   263  	AMULA
   264  
   265  	AWORD
   266  
   267  	AMULL
   268  	AMULAL
   269  	AMULLU
   270  	AMULALU
   271  
   272  	ABX
   273  	ABXRET
   274  	ADWORD
   275  
   276  	ALDREX
   277  	ASTREX
   278  	ALDREXD
   279  	ASTREXD
   280  
   281  	APLD
   282  
   283  	ACLZ
   284  
   285  	AMULWT
   286  	AMULWB
   287  	AMULAWT
   288  	AMULAWB
   289  
   290  	ADATABUNDLE
   291  	ADATABUNDLEEND
   292  
   293  	AMRC // MRC/MCR
   294  
   295  	ALAST
   296  
   297  	// aliases
   298  	AB  = obj.AJMP
   299  	ABL = obj.ACALL
   300  )
   301  
   302  /* scond byte */
   303  const (
   304  	C_SCOND = (1 << 4) - 1
   305  	C_SBIT  = 1 << 4
   306  	C_PBIT  = 1 << 5
   307  	C_WBIT  = 1 << 6
   308  	C_FBIT  = 1 << 7 /* psr flags-only */
   309  	C_UBIT  = 1 << 7 /* up bit, unsigned bit */
   310  
   311  	// These constants are the ARM condition codes encodings,
   312  	// XORed with 14 so that C_SCOND_NONE has value 0,
   313  	// so that a zeroed Prog.scond means "always execute".
   314  	C_SCOND_XOR = 14
   315  
   316  	C_SCOND_EQ   = 0 ^ C_SCOND_XOR
   317  	C_SCOND_NE   = 1 ^ C_SCOND_XOR
   318  	C_SCOND_HS   = 2 ^ C_SCOND_XOR
   319  	C_SCOND_LO   = 3 ^ C_SCOND_XOR
   320  	C_SCOND_MI   = 4 ^ C_SCOND_XOR
   321  	C_SCOND_PL   = 5 ^ C_SCOND_XOR
   322  	C_SCOND_VS   = 6 ^ C_SCOND_XOR
   323  	C_SCOND_VC   = 7 ^ C_SCOND_XOR
   324  	C_SCOND_HI   = 8 ^ C_SCOND_XOR
   325  	C_SCOND_LS   = 9 ^ C_SCOND_XOR
   326  	C_SCOND_GE   = 10 ^ C_SCOND_XOR
   327  	C_SCOND_LT   = 11 ^ C_SCOND_XOR
   328  	C_SCOND_GT   = 12 ^ C_SCOND_XOR
   329  	C_SCOND_LE   = 13 ^ C_SCOND_XOR
   330  	C_SCOND_NONE = 14 ^ C_SCOND_XOR
   331  	C_SCOND_NV   = 15 ^ C_SCOND_XOR
   332  
   333  	/* D_SHIFT type */
   334  	SHIFT_LL = 0 << 5
   335  	SHIFT_LR = 1 << 5
   336  	SHIFT_AR = 2 << 5
   337  	SHIFT_RR = 3 << 5
   338  )