| 1 | /* $Id: macdefs.h,v 1.12 2009/01/24 21:43:48 gmcgarry Exp $ */
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| 2 | /*
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| 3 | * Copyright (c) 2003 Anders Magnusson (ragge@ludd.luth.se).
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * 3. The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /*
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| 30 | * Machine-dependent defines for both passes.
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| 31 | */
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| 32 |
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| 33 | /*
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| 34 | * Convert (multi-)character constant to integer.
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| 35 | */
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| 36 | #define makecc(val,i) lastcon = (lastcon<<8)|((val<<24)>>24);
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| 37 |
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| 38 | /*
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| 39 | * Storage space requirements
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| 40 | */
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| 41 | #define SZCHAR 8
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| 42 | #define SZBOOL 32
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| 43 | #define SZINT 32
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| 44 | #define SZFLOAT 32
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| 45 | #define SZDOUBLE 64
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| 46 | #define SZLDOUBLE 64
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| 47 | #define SZLONG 32
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| 48 | #define SZSHORT 16
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| 49 | #define SZLONGLONG 64
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| 50 | #define SZPOINT(t) 32
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| 51 |
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| 52 | /*
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| 53 | * Alignment constraints
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| 54 | */
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| 55 | #define ALCHAR 8
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| 56 | #define ALBOOL 32
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| 57 | #define ALINT 32
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| 58 | #define ALFLOAT 32
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| 59 | #define ALDOUBLE 32
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| 60 | #define ALLDOUBLE 32
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| 61 | #define ALLONG 32
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| 62 | #define ALLONGLONG 32
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| 63 | #define ALSHORT 16
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| 64 | #define ALPOINT 32
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| 65 | #define ALSTRUCT 32
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| 66 | #define ALSTACK 32
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| 67 |
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| 68 | /*
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| 69 | * Min/max values.
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| 70 | */
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| 71 | #define MIN_CHAR -128
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| 72 | #define MAX_CHAR 127
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| 73 | #define MAX_UCHAR 255
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| 74 | #define MIN_SHORT -32768
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| 75 | #define MAX_SHORT 32767
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| 76 | #define MAX_USHORT 65535
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| 77 | #define MIN_INT -1
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| 78 | #define MAX_INT 0x7fffffff
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| 79 | #define MAX_UNSIGNED 0xffffffff
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| 80 | #define MIN_LONG MIN_INT
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| 81 | #define MAX_LONG MAX_INT
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| 82 | #define MAX_ULONG MAX_UNSIGNED
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| 83 | #define MIN_LONGLONG 0x8000000000000000LL
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| 84 | #define MAX_LONGLONG 0x7fffffffffffffffLL
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| 85 | #define MAX_ULONGLONG 0xffffffffffffffffULL
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| 86 |
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| 87 | #define BOOL_TYPE INT /* what used to store _Bool */
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| 88 |
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| 89 | /*
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| 90 | * Use large-enough types.
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| 91 | */
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| 92 | typedef long long CONSZ;
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| 93 | typedef unsigned long long U_CONSZ;
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| 94 | typedef long long OFFSZ;
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| 95 |
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| 96 | #define CONFMT "#%lld" /* format for printing constants */
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| 97 | #define LABFMT ".L%d" /* format for printing labels */
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| 98 | #define STABLBL "LL%d" /* format for stab (debugging) labels */
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| 99 | #define STAB_LINE_ABSOLUTE /* S_LINE fields use absolute addresses */
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| 100 |
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| 101 | #undef FIELDOPS /* no bit-field instructions */
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| 102 |
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| 103 | #define ENUMSIZE(high,low) INT /* enums are always stored in full int */
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| 104 |
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| 105 | /* Definitions mostly used in pass2 */
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| 106 |
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| 107 | #define BYTEOFF(x) ((x)&03)
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| 108 | #define wdal(k) (BYTEOFF(k)==0)
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| 109 | #define BITOOR(x) (x) /* bit offset to oreg offset XXX die! */
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| 110 |
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| 111 | #define STOARG(p)
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| 112 | #define STOFARG(p)
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| 113 | #define STOSTARG(p)
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| 114 |
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| 115 | #define szty(t) (((t) == DOUBLE || (t) == LDOUBLE || \
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| 116 | (t) == LONGLONG || (t) == ULONGLONG) ? 2 : 1)
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| 117 |
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| 118 | #define R0 0
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| 119 | #define R1 1
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| 120 | #define R2 2
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| 121 | #define R3 3
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| 122 | #define R4 4
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| 123 | #define R5 5
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| 124 | #define R6 6
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| 125 | #define R7 7
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| 126 | #define R8 8
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| 127 | #define R9 9
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| 128 | #define R10 10
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| 129 | #define R11 11
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| 130 | #define R12 12
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| 131 | #define R13 13
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| 132 | #define R14 14
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| 133 | #define R15 15
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| 134 |
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| 135 | #define SL R10
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| 136 | #define FP R11
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| 137 | #define IP R12
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| 138 | #define SP R13
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| 139 | #define LR R14
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| 140 | #define PC R15
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| 141 |
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| 142 | #define R0R1 16
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| 143 | #define R1R2 17
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| 144 | #define R2R3 18
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| 145 | #define R3R4 19
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| 146 | #define R4R5 20
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| 147 | #define R5R6 21
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| 148 | #define R6R7 22
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| 149 | #define R7R8 23
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| 150 | #define R8R9 24
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| 151 | #define R9R10 25
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| 152 |
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| 153 | #define F0 26
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| 154 | #define F1 27
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| 155 | #define F2 28
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| 156 | #define F3 29
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| 157 | #define F4 30
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| 158 | #define F5 31
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| 159 | #define F6 32
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| 160 | #define F7 33
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| 161 |
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| 162 | #define NUMCLASS 3
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| 163 | #define MAXREGS 34
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| 164 |
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| 165 | #define RSTATUS \
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| 166 | SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \
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| 167 | SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, \
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| 168 | SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, \
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| 169 | 0, 0, 0, 0, 0, \
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| 170 | SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG, \
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| 171 | SBREG, SBREG, SBREG, SBREG, SBREG, SBREG, \
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| 172 | SCREG, SCREG, SCREG, SCREG, \
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| 173 | SCREG, SCREG, SCREG, SCREG, \
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| 174 |
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| 175 | #define ROVERLAP \
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| 176 | { R0R1, -1 }, \
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| 177 | { R0R1, R1R2, -1 }, \
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| 178 | { R1R2, R2R3, -1 }, \
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| 179 | { R2R3, R3R4, -1 }, \
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| 180 | { R3R4, R4R5, -1 }, \
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| 181 | { R4R5, R5R6, -1 }, \
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| 182 | { R5R6, R6R7, -1 }, \
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| 183 | { R6R7, R7R8, -1 }, \
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| 184 | { R7R8, R8R9, -1 }, \
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| 185 | { R8R9, R9R10, -1 }, \
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| 186 | { R9R10, -1 }, \
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| 187 | { -1 }, \
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| 188 | { -1 }, \
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| 189 | { -1 }, \
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| 190 | { -1 }, \
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| 191 | { -1 }, \
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| 192 | { R0, R1, R1R2, -1 }, \
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| 193 | { R1, R2, R0R1, R2R3, -1 }, \
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| 194 | { R2, R3, R1R2, R3R4, -1 }, \
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| 195 | { R3, R4, R2R3, R4R5, -1 }, \
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| 196 | { R4, R5, R3R4, R5R6, -1 }, \
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| 197 | { R5, R6, R4R5, R6R7, -1 }, \
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| 198 | { R6, R7, R5R6, R7R8, -1 }, \
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| 199 | { R7, R8, R6R7, R8R9, -1 }, \
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| 200 | { R8, R9, R7R8, R9R10, -1 }, \
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| 201 | { R9, R10, R8R9, -1 }, \
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| 202 | { -1, }, \
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| 203 | { -1, }, \
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| 204 | { -1, }, \
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| 205 | { -1, }, \
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| 206 | { -1, }, \
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| 207 | { -1, }, \
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| 208 | { -1, }, \
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| 209 | { -1, }, \
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| 210 |
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| 211 | #define BACKTEMP /* stack grows negatively for temporaries */
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| 212 | #define BACKAUTO /* stack grows negatively for automatics */
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| 213 |
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| 214 | #define ARGINIT (4*8) /* # bits above fp where arguments start */
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| 215 | #define AUTOINIT (12*8) /* # bits above fp where automatics start */
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| 216 |
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| 217 | #undef FIELDOPS /* no bit-field instructions */
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| 218 | #define RTOLBYTES 1 /* bytes are numbered right to left */
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| 219 |
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| 220 | /* XXX - to die */
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| 221 | #define FPREG FP /* frame pointer */
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| 222 |
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| 223 | /* Return a register class based on the type of the node */
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| 224 | #define PCLASS(p) (1 << gclass((p)->n_type))
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| 225 |
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| 226 | #define GCLASS(x) (x < 16 ? CLASSA : x < 26 ? CLASSB : CLASSC)
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| 227 | #define DECRA(x,y) (((x) >> (y*6)) & 63) /* decode encoded regs */
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| 228 | #define ENCRD(x) (x) /* Encode dest reg in n_reg */
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| 229 | #define ENCRA1(x) ((x) << 6) /* A1 */
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| 230 | #define ENCRA2(x) ((x) << 12) /* A2 */
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| 231 | #define ENCRA(x,y) ((x) << (6+y*6)) /* encode regs in int */
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| 232 | #define RETREG(x) retreg(x)
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| 233 |
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| 234 | int COLORMAP(int c, int *r);
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| 235 | int retreg(int ty);
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| 236 | int features(int f);
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| 237 |
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| 238 | #define FEATURE_BIGENDIAN 0x00010000
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| 239 | #define FEATURE_HALFWORDS 0x00020000 /* ldrsh/ldrh, ldrsb */
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| 240 | #define FEATURE_EXTEND 0x00040000 /* sxth, sxtb, uxth, uxtb */
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| 241 | #define FEATURE_MUL 0x00080000
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| 242 | #define FEATURE_MULL 0x00100000
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| 243 | #define FEATURE_FPA 0x10000000
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| 244 | #define FEATURE_VFP 0x20000000
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| 245 | #define FEATURE_HARDFLOAT (FEATURE_FPA|FEATURE_VFP)
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| 246 |
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| 247 | #define TARGET_STDARGS
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| 248 | #define TARGET_BUILTINS \
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| 249 | { "__builtin_stdarg_start", arm_builtin_stdarg_start }, \
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| 250 | { "__builtin_va_arg", arm_builtin_va_arg }, \
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| 251 | { "__builtin_va_end", arm_builtin_va_end }, \
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| 252 | { "__builtin_va_copy", arm_builtin_va_copy },
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| 253 |
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| 254 | #define NODE struct node
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| 255 | struct node;
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| 256 | NODE *arm_builtin_stdarg_start(NODE *f, NODE *a);
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| 257 | NODE *arm_builtin_va_arg(NODE *f, NODE *a);
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| 258 | NODE *arm_builtin_va_end(NODE *f, NODE *a);
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| 259 | NODE *arm_builtin_va_copy(NODE *f, NODE *a);
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| 260 | #undef NODE
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| 261 |
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| 262 | #define COM "\t@ "
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| 263 | #define NARGREGS 4
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