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[/] [scarts/] [trunk/] [toolchain/] [scarts-binutils/] [binutils-2.19.1/] [cgen/] [cpu/] [openrisc.opc] - Blame information for rev 6

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/* OpenRISC opcode support.  -*- C -*-
   Copyright (C) 2000, 2001, 2003, 2005 Free Software Foundation
   Based upon work by Red Hat, Inc.
   This file is part of CGEN.  */
 
/* This file is an addendum to or32.cpu.  Heavy use of C code isn't
   appropriate in .cpu files, so it resides here.  This especially applies
   to assembly/disassembly where parsing/printing can be quite involved.
   Such things aren't really part of the specification of the cpu, per se,
   so .cpu files provide the general framework and .opc files handle the
   nitty-gritty details as necessary.
 
   Each section is delimited with start and end markers.
 
   -opc.h additions use: "-- opc.h"
   -opc.c additions use: "-- opc.c"
   -asm.c additions use: "-- asm.c"
   -dis.c additions use: "-- dis.c"
   -ibd.h additions use: "-- ibd.h"  */
 
/* -- opc.h */
#undef  CGEN_DIS_HASH_SIZE
#define CGEN_DIS_HASH_SIZE 64
#undef  CGEN_DIS_HASH
#define CGEN_DIS_HASH(buffer, value) (((unsigned char *) (buffer))[0] >> 2)
 
extern long openrisc_sign_extend_16bit (long);
/* -- */
 
/* -- opc.c */
/* -- */
 
/* -- asm.c */
 
static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'");
 
#define CGEN_VERBOSE_ASSEMBLER_ERRORS
 
long
openrisc_sign_extend_16bit (long value)
{
  return ((value & 0xffff) ^ 0x8000) - 0x8000;
}
 
/* Handle hi().  */
 
static const char *
parse_hi16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, long * valuep)
{
  const char *errmsg;
  enum cgen_parse_operand_result result_type;
  unsigned long ret;
 
  if (**strp == '#')
    ++*strp;
 
  if (strncasecmp (*strp, "hi(", 3) == 0)
    {
      bfd_vma value;
 
      *strp += 3;
      errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
                                   & result_type, & value);
      if (**strp != ')')
        return MISSING_CLOSING_PARENTHESIS;
 
      ++*strp;
      if (errmsg == NULL
          && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
        value >>= 16;
      ret = value;
    }
  else
    {
      if (**strp == '-')
        {
          long value;
 
          errmsg = cgen_parse_signed_integer (cd, strp, opindex, &value);
          ret = value;
        }
      else
        {
          unsigned long value;
 
          errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, &value);
          ret = value;
        }
    }
 
  *valuep = ((ret & 0xffff) ^ 0x8000) - 0x8000;
  return errmsg;
}
 
/* Handle lo().  */
 
static const char *
parse_lo16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, long * valuep)
{
  const char *errmsg;
  enum cgen_parse_operand_result result_type;
  unsigned long ret;
 
  if (**strp == '#')
    ++*strp;
 
  if (strncasecmp (*strp, "lo(", 3) == 0)
    {
      bfd_vma value;
 
      *strp += 3;
      errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
                                   & result_type, & value);
      if (**strp != ')')
        return MISSING_CLOSING_PARENTHESIS;
 
      ++*strp;
      ret = value;
    }
  else
    {
      if (**strp == '-')
        {
          long value;
 
          errmsg = cgen_parse_signed_integer (cd, strp, opindex, &value);
          ret = value;
        }
      else
        {
          unsigned long value;
 
          errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, &value);
          ret = value;
        }
    }
 
  *valuep = ((ret & 0xffff) ^ 0x8000) - 0x8000;
  return errmsg;
}
 
/* -- */
 
/* -- ibd.h */
extern long openrisc_sign_extend_16bit (long);
 
/* -- */

Line No.	Rev	Author	Line
1	6	jlechner	`/* OpenRISC opcode support. -- C --`
2			`Copyright (C) 2000, 2001, 2003, 2005 Free Software Foundation`
3			`Based upon work by Red Hat, Inc.`
4			`This file is part of CGEN. */`
5
6			`/* This file is an addendum to or32.cpu. Heavy use of C code isn't`
7			`appropriate in .cpu files, so it resides here. This especially applies`
8			`to assembly/disassembly where parsing/printing can be quite involved.`
9			`Such things aren't really part of the specification of the cpu, per se,`
10			`so .cpu files provide the general framework and .opc files handle the`
11			`nitty-gritty details as necessary.`
12
13			`Each section is delimited with start and end markers.`
14
15			`-opc.h additions use: "-- opc.h"`
16			`-opc.c additions use: "-- opc.c"`
17			`-asm.c additions use: "-- asm.c"`
18			`-dis.c additions use: "-- dis.c"`
19			`-ibd.h additions use: "-- ibd.h" */`
20
21			`/* -- opc.h */`
22			`#undef CGEN_DIS_HASH_SIZE`
23			`#define CGEN_DIS_HASH_SIZE 64`
24			`#undef CGEN_DIS_HASH`
25			`#define CGEN_DIS_HASH(buffer, value) (((unsigned char *) (buffer))[0] >> 2)`
26
27			`extern long openrisc_sign_extend_16bit (long);`
28			`/* -- */`
29
30			`/* -- opc.c */`
31			`/* -- */`
32
33			`/* -- asm.c */`
34
35			static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'");
36
37			`#define CGEN_VERBOSE_ASSEMBLER_ERRORS`
38
39			`long`
40			`openrisc_sign_extend_16bit (long value)`
41			`{`
42			`return ((value & 0xffff) ^ 0x8000) - 0x8000;`
43			`}`
44
45			`/* Handle hi(). */`
46
47			`static const char *`
48			`parse_hi16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, long * valuep)`
49			`{`
50			`const char *errmsg;`
51			`enum cgen_parse_operand_result result_type;`
52			`unsigned long ret;`
53
54			`if (**strp == '#')`
55			`++*strp;`
56
57			`if (strncasecmp (*strp, "hi(", 3) == 0)`
58			`{`
59			`bfd_vma value;`
60
61			`*strp += 3;`
62			`errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,`
63			`& result_type, & value);`
64			`if (**strp != ')')`
65			`return MISSING_CLOSING_PARENTHESIS;`
66
67			`++*strp;`
68			`if (errmsg == NULL`
69			`&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)`
70			`value >>= 16;`
71			`ret = value;`
72			`}`
73			`else`
74			`{`
75			`if (**strp == '-')`
76			`{`
77			`long value;`
78
79			`errmsg = cgen_parse_signed_integer (cd, strp, opindex, &value);`
80			`ret = value;`
81			`}`
82			`else`
83			`{`
84			`unsigned long value;`
85
86			`errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, &value);`
87			`ret = value;`
88			`}`
89			`}`
90
91			`*valuep = ((ret & 0xffff) ^ 0x8000) - 0x8000;`
92			`return errmsg;`
93			`}`
94
95			`/* Handle lo(). */`
96
97			`static const char *`
98			`parse_lo16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, long * valuep)`
99			`{`
100			`const char *errmsg;`
101			`enum cgen_parse_operand_result result_type;`
102			`unsigned long ret;`
103
104			`if (**strp == '#')`
105			`++*strp;`
106
107			`if (strncasecmp (*strp, "lo(", 3) == 0)`
108			`{`
109			`bfd_vma value;`
110
111			`*strp += 3;`
112			`errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,`
113			`& result_type, & value);`
114			`if (**strp != ')')`
115			`return MISSING_CLOSING_PARENTHESIS;`
116
117			`++*strp;`
118			`ret = value;`
119			`}`
120			`else`
121			`{`
122			`if (**strp == '-')`
123			`{`
124			`long value;`
125
126			`errmsg = cgen_parse_signed_integer (cd, strp, opindex, &value);`
127			`ret = value;`
128			`}`
129			`else`
130			`{`
131			`unsigned long value;`
132
133			`errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, &value);`
134			`ret = value;`
135			`}`
136			`}`
137
138			`*valuep = ((ret & 0xffff) ^ 0x8000) - 0x8000;`
139			`return errmsg;`
140			`}`
141
142			`/* -- */`
143
144			`/* -- ibd.h */`
145			`extern long openrisc_sign_extend_16bit (long);`
146
147			`/* -- */`

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[/] [scarts/] [trunk/] [toolchain/] [scarts-binutils/] [binutils-2.19.1/] [cgen/] [cpu/] [openrisc.opc] - Blame information for rev 6