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File:  [Power 6/32 Unix Tahoe 4.2BSD] / cci / usr / src / bin / cdb / macdefs.h
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Sun Jul 28 12:24:19 2019 UTC (7 years ago) by root
Branches: bsd, MAIN
CVS tags: v12b, v121, HEAD
Power 6/32 Unix version 1.2b

/* @(#)macdefs.h	2.5 */
/* the following defines give the SIZE and ALIGNMENT requirements
 * of the various types in BITS.  This information differs
 * from machine to machine.  If you have the source for the
 * PCC compiler, this can be found in the `macdefs.h' file
 */

/* ANY use of the union STUFFU is inherently MACHINE DEPENDENT
 * it is used for stuffing bytes into longs, etc.
 * most machines can be made to work if you move the fields and recompile
 */

#ifdef TAHOE
#define SZCHAR	8
#define SZSHORT	16
#define SZINT	32
#define SZLONG	32
#define SZPOINT	32
#define SZFLOAT	32
#define SZDOUBLE	64

#define ALCHAR	8
#define ALSHORT	16
#define ALINT	32
#define ALLONG	32
#define ALPOINT	32
#define ALFLOAT	32
#define ALDOUBLE	32
#define ALSTRUCT	32

#define LTORBYTES /* bytes are numbered from left to right */
#define RTOLBITS /* bits are numbered from right to left */
#define cbPage 512		/* # of bytes on a disk page */

typedef union {
	long	lng;
	float	fl;
	struct {
	    short	shortHi;
	    short	shortLo;
	    } shorts;
	struct {
	    char	chHiHi;
	    char	chHiLo;
	    char	chLoHi;
	    char	chLoLo;
	    } chars;
	} STUFFU;
#endif

#ifdef ONYX
#define SZCHAR	8
#define SZSHORT	16
#define SZINT	16
#define SZLONG	32
#define SZPOINT	16
#define SZFLOAT	32
#define SZDOUBLE	64

#define ALCHAR	8
#define ALSHORT	16
#define ALINT	16
#define ALLONG	16
#define ALPOINT	16
#define ALFLOAT	16
#define ALDOUBLE	16
#define ALSTRUCT	8

#define EVENBYTES	/* accesses must be made on even byte boundaries */
#define RTOLBYTES /* bytes are numbered from right to left */
#define RTOLBITS /* bits are numbered from right to left */
#define cbPage 512		/* # of bytes on a disk page */

typedef union {
	long	lng;
	float	fl;
	struct {
	    short	shortHi;
	    short	shortLo;
	    } shorts;
	struct {
	    char	chHiHi;
	    char	chHiLo;
	    char	chLoHi;
	    char	chLoLo;
	    } chars;
	} STUFFU;
#endif

#ifdef REGULUS
#define SZCHAR	8
#define SZSHORT	16
#define SZINT	16
#define SZLONG	32
#define SZPOINT	32
#define SZFLOAT	32
#define SZDOUBLE	32

#define ALCHAR	16
#define ALSHORT	16
#define ALINT	16
#define ALLONG	16
#define ALPOINT	16
#define ALFLOAT	16
#define ALDOUBLE	16
#define ALSTRUCT	16

#define EVENBYTES	/* accesses must be made on even byte boundaries */
#define LTORBYTES /* bytes are numbered from left to right */
#define LTORBITS /* bits are numbered from left to right */
#define cbPage 512		/* # of bytes on a disk page */

typedef union {
	long	lng;
	float	fl;
	struct {
	    short	shortHi;
	    short	shortLo;
	    } shorts;
	struct {
	    char	chHiHi;
	    char	chHiLo;
	    char	chLoHi;
	    char	chLoLo;
	    } chars;
	} STUFFU;
#endif

#ifdef VAX
#define SZCHAR	8
#define SZSHORT	16
#define SZINT	32
#define SZLONG	32
#define SZPOINT	32
#define SZFLOAT	32
#define SZDOUBLE	64

#define ALCHAR	8
#define ALSHORT	8
#define ALINT	8
#define ALLONG	8
#define ALPOINT	8
#define ALFLOAT	8
#define ALDOUBLE	8
#define ALSTRUCT	8

#define RTOLBYTES /* bytes are numbered from right to left */
#define RTOLBITS /* bits are numbered from right to left */
#define cbPage 512		/* # of bytes on a disk page */

typedef union {
	long	lng;
	float	fl;
	struct {
	    short	shortLo;
	    short	shortHi;
	    } shorts;
	struct {
	    char	chLoLo;
	    char	chLoHi;
	    char	chHiLo;
	    char	chHiHi;
	    } chars;
	} STUFFU;
#endif

#ifdef SUN
#define SZCHAR	8
#define SZSHORT	16
#define SZINT	32
#define SZLONG	32
#define SZPOINT	32
#define SZFLOAT	32
#define SZDOUBLE	64

#define ALCHAR	8
#define ALSHORT	8
#define ALINT	8
#define ALLONG	8
#define ALPOINT	8
#define ALFLOAT	8
#define ALDOUBLE	8
#define ALSTRUCT	8

#define EVENBYTES	/* accesses must be made on even byte boundaries */
#define LTORBYTES /* bytes are numbered from left to right */
#define LTORBITS /* bits are numbered from left to right */
#define cbPage 512		/* # of bytes on a disk page */

typedef union {
	long	lng;
	float	fl;
	struct {
	    short	shortHi;
	    short	shortLo;
	    } shorts;
	struct {
	    char	chHiHi;
	    char	chHiLo;
	    char	chLoHi;
	    char	chLoLo;
	    } chars;
	} STUFFU;
  /* SUN */
#endif


#define CBCHAR	1	/* I hope that this is right!!! */
#define CBSHORT	SZSHORT/SZCHAR
#define CBINT	SZINT/SZCHAR
#define CBLONG	SZLONG/SZCHAR
#define CBPOINT	SZPOINT/SZCHAR
#define CBFLOAT	SZFLOAT/SZCHAR
#define CBDOUBLE	SZDOUBLE/SZCHAR


#define	U1	((unsigned)~0)
#define shortMax (U1>>(SZINT-SZSHORT+1)) /* largest signed short integer */
#define shortMin (-shortMax-1)	/* smallest signed short integer */
#define intMax (U1>>1)		/* largest signed integer */
#define intMin (-intMax-1)	/* smallest signed long integer */
#define longMax (U1>>1)		/* largest signed long */
#define longMin (-longMax-1)	/* smallest signed long */

#define Mask(width) (~(U1<<width))	/* generate a bunch of 1111111's */
#ifdef RTOLBITS
#define Extract(x, pos, width) ((x>>pos) & Mask(width))
#define SetBits(x, width, pos, val) {x &= ~(Mask(width)<<pos); x |= val<<pos;}
#else
#define Extract(x, pos, width) ((x>>(SZINT-pos-width)) & Mask(width))
#define SetBits(x, width, pos, val)\
	{x &= ~(Mask(width)<<(SZINT-pos-width)); x |= val<<(SZINT-pos-width);}
#endif

/* adrReg0 is usually the reference point in "core". It's the displacement
 * for the end of the (user+kernel) stack.
 * adrReason is the displacement in a core file header where we can find
 * the reason for the child's death (relative to adrReg0).  I know of no way to
 * determine this number other than by Divine insight, or by
 * looking at the sources for the crash program(?).
 */
#ifdef TAHOE

#ifndef	BSD42
#define adrReg0 (4*1024)	/* see InitAll in init.c for discussion */
#else
#define adrReg0 (6*1024)	/* The _u structure is 6k in Unix 4.2 ! */
#endif

#define adrReason -3*4	/* On Tahoe, HW pushes psl, pc, then the code */
#endif

#ifdef ONYX
#define adrReg0 ((int *)03742)	/* see InitAll in init.c for discussion */
#define adrReason 03654	/* -27 */
#endif

#ifdef PLEXUS
#undef adrReg0
#undef adrReason
#define adrReg0 ((int *)03750)	/* see InitAll in init.c for discussion */
#define adrReason 03650
#define SP R15
#endif

#ifdef M68000
#define adrReg0 ((int *)010000)	/* see InitAll in init.c for discussion */
#define adrReason 07764	/* -3 */
#endif

#ifdef VAX
#define adrReg0 ((int *)010000)	/* see InitAll in init.c for discussion */
#define adrReason 07764	/* -3 */
#endif

#ifndef M68000
/* these are internal names for registers, REAL offsets are in vrgOffset */
#define 	u0	0
#define 	u1	1
#define 	u2	2
#define 	u3	3
#define 	u4	4
#define 	u5	5
#define 	u6	6
#define 	u7	7
#define 	u8	8
#define 	u9	9
#define 	u10	10
#define 	u11	11
#define 	u12	12
#ifndef	TAHOE
#define 	u13	13
#endif

#ifdef ONYX
#define 	u14	14
#define 	u15	15
#define 	usp	16
#define 	upc	17
#define 	ufp	18
#define 	ufcw	19
#define uregMax 20
#endif

#ifdef VAX
#define 	uap	14
#define		ufp	15
#define		usp	16
#define		ups	17
#define		upc	18
#define uregMax 19
#endif

#ifdef	TAHOE
#define		ufp	13
#define		usp	14
#define		upc	15
#define		ups	16
#define	uregMax	17
#endif

#endif

#ifdef SUN
#define adrReg0 ((int *)013666)	/* see InitAll in init.c for discussion */
#define adrReason 013652	/* -3 */
#endif

#ifdef M68000
/* these are internal names for registers, REAL offsets are in vrgOffset */
#define 	ud0	0
#define 	ud1	1
#define 	ud2	2
#define 	ud3	3
#define 	ud4	4
#define 	ud5	5
#define 	ud6	6
#define 	ud7	7
#define 	ua0	8
#define 	ua1	9
#define 	ua2	10
#define 	ua3	11
#define 	ua4	12
#define 	ua5	13
#define 	ua6	14
#define 	ua7	15
#define 	upc	16
#define 	ups	17
#define 	ufp	18
#define 	usp	19
#define uregMax 20
#endif
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