| 1 | /* $Id: macdefs.h,v 1.2 2007/11/16 22:27:42 gmcgarry Exp $ */
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| 2 | /*
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| 3 | * Copyright (c) 2006 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 Data General Nova.
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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);
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| 37 |
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| 38 | #define ARGINIT 16 /* adjusted in MD code */
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| 39 | #define AUTOINIT 16 /* adjusted in MD code */
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| 40 |
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| 41 | /*
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| 42 | * Storage space requirements
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| 43 | */
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| 44 | #define SZCHAR 8
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| 45 | #define SZINT 16
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| 46 | #define SZFLOAT 32
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| 47 | #define SZDOUBLE 64
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| 48 | #define SZLDOUBLE 64
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| 49 | #define SZLONG 32
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| 50 | #define SZSHORT 16
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| 51 | #define SZLONGLONG 32
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| 52 | #define SZPOINT(t) 16 /* Actually 15 */
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| 53 |
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| 54 | /*
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| 55 | * Alignment constraints
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| 56 | */
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| 57 | #define ALCHAR 8
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| 58 | #define ALINT 16
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| 59 | #define ALFLOAT 16
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| 60 | #define ALDOUBLE 16
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| 61 | #define ALLDOUBLE 16
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| 62 | #define ALLONG 16
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| 63 | #define ALLONGLONG 16
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| 64 | #define ALSHORT 16
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| 65 | #define ALPOINT 16
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| 66 | #define ALSTRUCT 16
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| 67 | #define ALSTACK 16
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| 68 |
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| 69 | /*
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| 70 | * Min/max values.
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| 71 | */
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| 72 | #define MIN_CHAR -128
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| 73 | #define MAX_CHAR 127
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| 74 | #define MAX_UCHAR 255
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| 75 | #define MIN_SHORT -32768
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| 76 | #define MAX_SHORT 32767
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| 77 | #define MAX_USHORT 65535
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| 78 | #define MIN_INT MIN_SHORT
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| 79 | #define MAX_INT MAX_SHORT
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| 80 | #define MAX_UNSIGNED MAX_USHORT
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| 81 | #define MIN_LONG 0x80000000L
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| 82 | #define MAX_LONG 0x7fffffffL
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| 83 | #define MAX_ULONG 0xffffffffUL
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| 84 | #define MIN_LONGLONG MIN_LONG
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| 85 | #define MAX_LONGLONG MAX_LONG
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| 86 | #define MAX_ULONGLONG MAX_ULONG
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| 87 |
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| 88 | /* Default char is unsigned */
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| 89 | #define CHAR_UNSIGNED
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| 90 |
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| 91 | /*
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| 92 | * Use large-enough types.
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| 93 | */
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| 94 | typedef long CONSZ;
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| 95 | typedef unsigned long U_CONSZ;
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| 96 | typedef long OFFSZ;
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| 97 |
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| 98 | #define CONFMT "%ld" /* format for printing constants */
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| 99 | #define LABFMT ".L%d" /* format for printing labels */
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| 100 | #define STABLBL ".LL%d" /* format for stab (debugging) labels */
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| 101 | #ifdef FORTRAN
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| 102 | #define XL 8
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| 103 | #define FLABELFMT "%s:\n"
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| 104 | #define USETEXT ".text"
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| 105 | #define USECONST ".data\t0" /* XXX - fix */
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| 106 | #define USEBSS ".data\t1" /* XXX - fix */
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| 107 | #define USEINIT ".data\t2" /* XXX - fix */
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| 108 | #define MAXREGVAR 3 /* XXX - fix */
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| 109 | #define BLANKCOMMON "_BLNK_"
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| 110 | #define MSKIREG (M(TYSHORT)|M(TYLONG))
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| 111 | #define TYIREG TYLONG
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| 112 | #define FSZLENG FSZLONG
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| 113 | #define FUDGEOFFSET 1
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| 114 | #define AUTOREG EBP
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| 115 | #define ARGREG EBP
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| 116 | #define ARGOFFSET 4
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| 117 | #endif
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| 118 |
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| 119 | #define BACKAUTO /* stack grows negatively for automatics */
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| 120 | #define BACKTEMP /* stack grows negatively for temporaries */
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| 121 |
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| 122 | #undef FIELDOPS /* no bit-field instructions */
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| 123 | #define RTOLBYTES /* bytes are numbered right to left */
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| 124 |
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| 125 | #define ENUMSIZE(high,low) INT /* enums are always stored in full int */
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| 126 |
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| 127 | /* Definitions mostly used in pass2 */
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| 128 |
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| 129 | #define BYTEOFF(x) ((x)&01)
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| 130 | #define wdal(k) (BYTEOFF(k)==0)
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| 131 | #define BITOOR(x) (x) /* bit offset to oreg offset XXX die! */
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| 132 |
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| 133 | #define STOARG(p)
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| 134 | #define STOFARG(p)
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| 135 | #define STOSTARG(p)
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| 136 | #define genfcall(a,b) gencall(a,b)
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| 137 |
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| 138 | #define szty(t) (((t) == DOUBLE || (t) == LDOUBLE) ? 4 : \
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| 139 | ((t) == LONGLONG || (t) == ULONGLONG || \
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| 140 | (t) == LONG || (t) == ULONG) ? 2 : 1)
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| 141 |
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| 142 | /*
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| 143 | * The Nova has three register classes. Note that the space used in
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| 144 | * zero page is considered registers.
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| 145 | * Register 28 and 29 are FP and SP.
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| 146 | *
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| 147 | * The classes used on Nova are:
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| 148 | * A - AC0-AC3 (as non-index registers) : reg 0-3
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| 149 | * B - AC2-AC3 (as index registers) : reg 2-3
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| 150 | * C - address 50-77 in memory : reg 4-27
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| 151 | */
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| 152 | #define MAXREGS 30 /* 0-29 */
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| 153 |
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| 154 | #define RSTATUS \
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| 155 | SAREG|TEMPREG, SAREG|TEMPREG, SAREG|SBREG|TEMPREG, SAREG|SBREG|TEMPREG,\
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| 156 | SCREG|TEMPREG, SCREG|TEMPREG, SCREG|TEMPREG, SCREG|TEMPREG, \
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| 157 | SCREG|TEMPREG, SCREG|TEMPREG, SCREG|TEMPREG, SCREG|TEMPREG, \
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| 158 | SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, \
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| 159 | SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, \
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| 160 | SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, \
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| 161 | SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, SCREG|PERMREG, \
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| 162 | 0, 0
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| 163 |
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| 164 | #define ROVERLAP \
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| 165 | { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
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| 166 | { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
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| 167 | { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
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| 168 | { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 },
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| 169 |
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| 170 |
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| 171 | /* Return a register class based on the type of the node */
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| 172 | /* all types in all classes */
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| 173 | #define PCLASS(p) (SAREG|SBREG|SCREG)
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| 174 |
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| 175 | #define NUMCLASS 4 /* highest number of reg classes used */
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| 176 | /* XXX - must be 4 */
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| 177 |
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| 178 | int COLORMAP(int c, int *r);
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| 179 | #define GCLASS(x) (x < 4 ? CLASSA : CLASSC)
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| 180 | #define DECRA(x,y) (((x) >> (y*6)) & 63) /* decode encoded regs */
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| 181 | #define ENCRD(x) (x) /* Encode dest reg in n_reg */
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| 182 | #define ENCRA1(x) ((x) << 6) /* A1 */
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| 183 | #define ENCRA2(x) ((x) << 12) /* A2 */
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| 184 | #define ENCRA(x,y) ((x) << (6+y*6)) /* encode regs in int */
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| 185 | #define RETREG(x) (0) /* ? Sanity */
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| 186 |
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| 187 | /* XXX - to die */
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| 188 | #define FPREG 28 /* frame pointer */
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| 189 | #define STKREG 29 /* stack pointer */
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