github.com/FenixAra/go@v0.0.0-20170127160404-96ea0918e670/src/cmd/internal/obj/arm64/list7.go (about)

     1  // cmd/7l/list.c and cmd/7l/sub.c from Vita Nuova.
     2  // https://code.google.com/p/ken-cc/source/browse/
     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 arm64
    32  
    33  import (
    34  	"cmd/internal/obj"
    35  	"fmt"
    36  )
    37  
    38  var strcond = [16]string{
    39  	"EQ",
    40  	"NE",
    41  	"HS",
    42  	"LO",
    43  	"MI",
    44  	"PL",
    45  	"VS",
    46  	"VC",
    47  	"HI",
    48  	"LS",
    49  	"GE",
    50  	"LT",
    51  	"GT",
    52  	"LE",
    53  	"AL",
    54  	"NV",
    55  }
    56  
    57  func init() {
    58  	obj.RegisterRegister(obj.RBaseARM64, REG_SPECIAL+1024, Rconv)
    59  	obj.RegisterOpcode(obj.ABaseARM64, Anames)
    60  }
    61  
    62  func Rconv(r int) string {
    63  	if r == REGG {
    64  		return "g"
    65  	}
    66  	switch {
    67  	case REG_R0 <= r && r <= REG_R30:
    68  		return fmt.Sprintf("R%d", r-REG_R0)
    69  	case r == REG_R31:
    70  		return "ZR"
    71  	case REG_F0 <= r && r <= REG_F31:
    72  		return fmt.Sprintf("F%d", r-REG_F0)
    73  	case REG_V0 <= r && r <= REG_V31:
    74  		return fmt.Sprintf("V%d", r-REG_V0)
    75  	case COND_EQ <= r && r <= COND_NV:
    76  		return strcond[r-COND_EQ]
    77  	case r == REGSP:
    78  		return "RSP"
    79  	case r == REG_DAIF:
    80  		return "DAIF"
    81  	case r == REG_NZCV:
    82  		return "NZCV"
    83  	case r == REG_FPSR:
    84  		return "FPSR"
    85  	case r == REG_FPCR:
    86  		return "FPCR"
    87  	case r == REG_SPSR_EL1:
    88  		return "SPSR_EL1"
    89  	case r == REG_ELR_EL1:
    90  		return "ELR_EL1"
    91  	case r == REG_SPSR_EL2:
    92  		return "SPSR_EL2"
    93  	case r == REG_ELR_EL2:
    94  		return "ELR_EL2"
    95  	case r == REG_CurrentEL:
    96  		return "CurrentEL"
    97  	case r == REG_SP_EL0:
    98  		return "SP_EL0"
    99  	case r == REG_SPSel:
   100  		return "SPSel"
   101  	case r == REG_DAIFSet:
   102  		return "DAIFSet"
   103  	case r == REG_DAIFClr:
   104  		return "DAIFClr"
   105  	}
   106  	return fmt.Sprintf("badreg(%d)", r)
   107  }
   108  
   109  func DRconv(a int) string {
   110  	if a >= C_NONE && a <= C_NCLASS {
   111  		return cnames7[a]
   112  	}
   113  	return "C_??"
   114  }