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/* $OpenBSD: macdefs.h,v 1.3 2007/12/22 14:05:04 stefan Exp $ */
/*
* Copyright (c) 2003 Anders Magnusson (ragge@ludd.luth.se).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Machine-dependent defines for both passes.
*/
/*
* Convert (multi-)character constant to integer.
*/
#define makecc(val,i) lastcon = (lastcon<<8)|((val<<24)>>24);
/*
* Storage space requirements
*/
#define SZCHAR 8
#define SZBOOL 32
#define SZINT 32
#define SZFLOAT 32
#define SZDOUBLE 64
#define SZLDOUBLE 96
#define SZLONG 32
#define SZSHORT 16
#define SZLONGLONG 64
#define SZPOINT(t) 32
/*
* Alignment constraints
*/
#define ALCHAR 8
#define ALBOOL 32
#define ALINT 32
#define ALFLOAT 32
#define ALDOUBLE 32
#define ALLDOUBLE 32
#define ALLONG 32
#define ALLONGLONG 32
#define ALSHORT 16
#define ALPOINT 32
#define ALSTRUCT 32
#define ALSTACK 32
/*
* Min/max values.
*/
#define MIN_CHAR -128
#define MAX_CHAR 127
#define MAX_UCHAR 255
#define MIN_SHORT -32768
#define MAX_SHORT 32767
#define MAX_USHORT 65535
#define MIN_INT -1
#define MAX_INT 0x7fffffff
#define MAX_UNSIGNED 0xffffffff
#define MIN_LONG MIN_INT
#define MAX_LONG MAX_INT
#define MAX_ULONG MAX_UNSIGNED
#define MIN_LONGLONG 0x8000000000000000LL
#define MAX_LONGLONG 0x7fffffffffffffffLL
#define MAX_ULONGLONG 0xffffffffffffffffULL
#define CHAR_UNSIGNED
#define TARGET_STDARGS
#define BOOL_TYPE INT /* what used to store _Bool */
#define WCHAR_TYPE INT /* what used to store wchar_t */
#define ELFABI
/*
* Use large-enough types.
*/
typedef long long CONSZ;
typedef unsigned long long U_CONSZ;
typedef long long OFFSZ;
#define CONFMT "%lld" /* format for printing constants */
#ifdef ELFABI
#define LABFMT ".L%d" /* format for printing labels */
#else
#define LABFMT "L%d" /* format for printing labels */
#endif
#define STABLBL "LL%d" /* format for stab (debugging) labels */
#define STAB_LINE_ABSOLUTE /* S_LINE fields use absolute addresses */
#undef FIELDOPS /* no bit-field instructions */
#if 0
#define RTOLBYTES /* bytes are numbered right to left */
#endif
#define ENUMSIZE(high,low) INT /* enums are always stored in full int */
/* Definitions mostly used in pass2 */
#define BYTEOFF(x) ((x)&03)
#define wdal(k) (BYTEOFF(k)==0)
#define BITOOR(x) (x) /* bit offset to oreg offset XXX die! */
#define STOARG(p)
#define STOFARG(p)
#define STOSTARG(p)
#define szty(t) (((t) == DOUBLE || (t) == FLOAT || \
(t) == LONGLONG || (t) == ULONGLONG) ? 2 : (t) == LDOUBLE ? 3 : 1)
/*
* The PPC register definition are taken from apple docs.
*
* The classes used are:
* A - general registers
* B - 64-bit register pairs
*/
#define R0 0 // scratch register
#define R1 1 // stack base pointer
#define R2 2
#define R3 3 // return register / argument 0
#define R4 4 // return register (for longlong) / argument 1
#define R5 5 // scratch register / argument 2
#define R6 6 // scratch register / argument 3
#define R7 7 // scratch register / argument 4
#define R8 8 // scratch register / argument 5
#define R9 9 // scratch register / argument 6
#define R10 10 // scratch register / argument 7
#define R11 11 // scratch register
#define R12 12 // scratch register
#define R13 13
#define R14 14
#define R15 15
#define R16 16
#define R17 17
#define R18 18
#define R19 19
#define R20 20
#define R21 21
#define R22 22
#define R23 23
#define R24 24
#define R25 25
#define R26 26
#define R27 27
#define R28 28
#define R29 29
#define R30 30
#define R31 31
#define R3R4 32
#define R4R5 33
#define R5R6 34
#define R6R7 35
#define R7R8 36
#define R8R9 37
#define R9R10 38
#define R14R15 39
#define R16R17 40
#define R18R19 41
#define R20R21 42
#define R22R23 43
#define R24R25 44
#define R26R27 45
#define R28R29 46
#define R30R31 47
#define NUMCLASS 4 // XXX must always be 4
#define MAXREGS 48
#define RSTATUS \
0, 0, SAREG|TEMPREG, SAREG|TEMPREG, \
SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \
SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG, \
SAREG, SAREG, SAREG, SAREG, \
SAREG, SAREG, SAREG, SAREG, \
SAREG, SAREG, SAREG, SAREG, \
SAREG, SAREG, SAREG, SAREG, \
SAREG, SAREG, SAREG, SAREG, \
\
SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \
SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \
\
SBREG, SBREG, SBREG, SBREG, \
SBREG, SBREG, SBREG, SBREG, \
SBREG,
#define ROVERLAP \
{ -1 }, { -1 }, { -1 }, \
{ R3R4, -1 }, { R3R4, R4R5, -1 }, \
{ R4R5, R5R6, -1 }, { R5R6, R6R7, -1 }, \
{ R6R7, R7R8, -1 }, { R7R8, R8R9, -1 }, \
{ R8R9, R9R10, -1 }, { R9R10, -1 }, \
{ -1 }, { -1 }, { -1 }, \
{ R14R15, -1 }, { R14R15, -1 }, \
{ R16R17, -1 }, { R16R17, -1 }, \
{ R18R19, -1 }, { R18R19, -1 }, \
{ R20R21, -1 }, { R20R21, -1 }, \
{ R22R23, -1 }, { R22R23, -1 }, \
{ R24R25, -1 }, { R24R25, -1 }, \
{ R26R27, -1 }, { R26R27, -1 }, \
{ R28R29, -1 }, { R28R29, -1 }, \
{ R30R31, -1 }, { R30R31, -1 }, \
\
{ R3, R4, R4R5, -1 }, { R4, R5, R3R4, R5R6, -1 }, \
{ R5, R6, R4R5, R6R7, -1 }, { R6, R7, R5R6, R7R8, -1 }, \
{ R7, R8, R6R7, R8R9, -1 }, { R8, R9, R7R8, R8R9, -1 }, \
{ R9, R10, R8R9, -1 }, \
{ R14, R15, -1 }, { R16, R17, -1 }, \
{ R18, R19, -1 }, { R20, R21, -1 }, \
{ R22, R23, -1 }, { R24, R25, -1 }, \
{ R26, R27, -1 }, { R28, R29, -1 }, \
{ R30, R31, -1 },
#if 0
#define BACKAUTO /* stack grows negatively for automatics */
#define BACKTEMP /* stack grows negatively for temporaries */
#endif
#define ARGINIT (24*8) /* # bits above fp where arguments start */
#define AUTOINIT (56*8) /* # bits above fp where automatics start */
/* XXX - to die */
#define FPREG R1 /* frame pointer */
#if 0
#define STKREG R30 /* stack pointer */
#endif
/* Return a register class based on the type of the node */
#define PCLASS(p) (p->n_type == LONGLONG || p->n_type == ULONGLONG ? SBREG : \
(p->n_type >= FLOAT && p->n_type <= LDOUBLE ? SCREG : SAREG))
#define GCLASS(x) (x < 32 ? CLASSA : CLASSB)
#define DECRA(x,y) (((x) >> (y*6)) & 63) /* decode encoded regs */
#define ENCRD(x) (x) /* Encode dest reg in n_reg */
#define ENCRA1(x) ((x) << 6) /* A1 */
#define ENCRA2(x) ((x) << 12) /* A2 */
#define ENCRA(x,y) ((x) << (6+y*6)) /* encode regs in int */
#define RETREG(x) ((x) == ULONGLONG || (x) == LONGLONG ? R3R4 : R3)
int COLORMAP(int c, int *r);
#define SHSTR (MAXSPECIAL+1) /* short struct */
#define SFUNCALL (MAXSPECIAL+2) /* struct assign after function call */
#define SPCON (MAXSPECIAL+3) /* positive constant */
struct stub {
struct { struct stub *q_forw, *q_back; } link;
char *name;
};
#define FIXEDSTACKSIZE 200 /* in bytes */
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