list9.go raw

   1  // cmd/9l/list.c from Vita Nuova.
   2  //
   3  //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
   4  //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
   5  //	Portions Copyright © 1997-1999 Vita Nuova Limited
   6  //	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
   7  //	Portions Copyright © 2004,2006 Bruce Ellis
   8  //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
   9  //	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
  10  //	Portions Copyright © 2009 The Go Authors. All rights reserved.
  11  //
  12  // Permission is hereby granted, free of charge, to any person obtaining a copy
  13  // of this software and associated documentation files (the "Software"), to deal
  14  // in the Software without restriction, including without limitation the rights
  15  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  16  // copies of the Software, and to permit persons to whom the Software is
  17  // furnished to do so, subject to the following conditions:
  18  //
  19  // The above copyright notice and this permission notice shall be included in
  20  // all copies or substantial portions of the Software.
  21  //
  22  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  25  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  26  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  27  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  28  // THE SOFTWARE.
  29  
  30  package ppc64
  31  
  32  import (
  33  	"github.com/twitchyliquid64/golang-asm/obj"
  34  	"fmt"
  35  )
  36  
  37  func init() {
  38  	obj.RegisterRegister(obj.RBasePPC64, REG_DCR0+1024, rconv)
  39  	obj.RegisterOpcode(obj.ABasePPC64, Anames)
  40  }
  41  
  42  func rconv(r int) string {
  43  	if r == 0 {
  44  		return "NONE"
  45  	}
  46  	if r == REGG {
  47  		// Special case.
  48  		return "g"
  49  	}
  50  	if REG_R0 <= r && r <= REG_R31 {
  51  		return fmt.Sprintf("R%d", r-REG_R0)
  52  	}
  53  	if REG_F0 <= r && r <= REG_F31 {
  54  		return fmt.Sprintf("F%d", r-REG_F0)
  55  	}
  56  	if REG_V0 <= r && r <= REG_V31 {
  57  		return fmt.Sprintf("V%d", r-REG_V0)
  58  	}
  59  	if REG_VS0 <= r && r <= REG_VS63 {
  60  		return fmt.Sprintf("VS%d", r-REG_VS0)
  61  	}
  62  	if REG_CR0 <= r && r <= REG_CR7 {
  63  		return fmt.Sprintf("CR%d", r-REG_CR0)
  64  	}
  65  	if r == REG_CR {
  66  		return "CR"
  67  	}
  68  	if REG_SPR0 <= r && r <= REG_SPR0+1023 {
  69  		switch r {
  70  		case REG_XER:
  71  			return "XER"
  72  
  73  		case REG_LR:
  74  			return "LR"
  75  
  76  		case REG_CTR:
  77  			return "CTR"
  78  		}
  79  
  80  		return fmt.Sprintf("SPR(%d)", r-REG_SPR0)
  81  	}
  82  
  83  	if REG_DCR0 <= r && r <= REG_DCR0+1023 {
  84  		return fmt.Sprintf("DCR(%d)", r-REG_DCR0)
  85  	}
  86  	if r == REG_FPSCR {
  87  		return "FPSCR"
  88  	}
  89  	if r == REG_MSR {
  90  		return "MSR"
  91  	}
  92  
  93  	return fmt.Sprintf("Rgok(%d)", r-obj.RBasePPC64)
  94  }
  95  
  96  func DRconv(a int) string {
  97  	s := "C_??"
  98  	if a >= C_NONE && a <= C_NCLASS {
  99  		s = cnames9[a]
 100  	}
 101  	var fp string
 102  	fp += s
 103  	return fp
 104  }
 105