dhry.c

mips架构的bootloader,99左右的版本 但源代码现在没人更新了

/*
 *	"DHRYSTONE" Benchmark Program
 *
 *	Version:	C/1
 *	Date:		12/01/84
 *	Author:		Reinhold P. Weicker,  CACM Vol 27, No 10, 10/84 pg. 1013
 *			Translated from ADA by Rick Richardson
 *			Every method to preserve ADA-likeness has been used,
 *			at the expense of C-ness.
 *			Portability bugs fixed (286 large model) by Jim Avera.
 *			Modified to use <timerstuf.h> portable interface -JimA
 *		        The CI_C86 time() function was moved to timerstuf.c
 *	Compile:	cc -O dry.c -o drynr			: No registers
 *			cc -O -DREG=register dry.c -o dryr	: Registers
 *	Defines:	Defines are provided for old C compiler's
 *			which don't have enums, and can't assign structures.
 *			The external files timerstuf.h and timerstuf.c are
 *			required.  These contain all OS-dependent code for
 *		        elapsed time determination and printing.
 *	Run:		drynr; dryr
 *			50000 Runs are made and the time is printed
 *
 * MACHINE	MICROPROCESSOR	OPERATING	COMPILER	DHRYSTONES/SEC.
 * TYPE				SYSTEM				NO REG	REGS
 * --------------------------	------------	-----------	---------------
 * IBM PC/XT	8088-4.77Mhz	PCDOS 2.1	CI-C86 2.1	????	????
 * IBM PC/XT	8088-4.77Mhz	PC/IX		cc		????	????
 * IBM PC/XT	8088-4.77Mhz	VENIX/86 2.0	cc		 297	 324
 * IBM PC/AT	80286-6Mhz	PCDOS 3.0	CI-C86 2.1	 666	 684
 * ATT 3B2/300	MAC32-?Mhz	UNIX 5.0.2	cc		 735	 806
 * IBM PC/AT	80286-6Mhz	VENIX/86 2.1	cc		 961	1000
 * AT CLONE	80286-8Mhz0/1ws	System V/AT	cc -Ms		1700    1700
 * AT CLONE	80286-8Mhz0/1ws	System V/AT	cc -Ml		1136    1136
 * AT CLONE	80386-16Mhz	Microport SVR3	cc 		3846    4226
 * Sun2/120	68010-10Mhz	Sun 4.2BSD	cc		????    ????
 * PDP 11/70	-		UNIX 5.2	cc		????	????
 * VAX 11/780	-		UNIX 5.2	cc		????	????
 * Macintosh	68000-??Mhz	????		??		????	????
 * Lisa		68000-??Mhz	????		??		????	????
 * DECsta 3100  MIPS 		Ultrix		cc -O3		29000   29200
 *
 **************************************************************************
 *
 *	The following program contains statements of a high-level programming
 *	language (C) in a distribution considered representative:
 *
 *	assignments			53%
 *	control statements		32%
 *	procedure, function calls	15%
 *
 *	100 statements are dynamically executed.  The program is balanced with
 *	respect to the three aspects:
 *		- statement type
 *		- operand type (for simple data types)
 *		- operand access
 *			operand global, local, parameter, or constant.
 *
 *	The combination of these three aspects is balanced only approximately.
 *
 *	The program does not compute anything meaningfull, but it is
 *	syntactically and semantically correct.
 *
 */

/* Compiler dependent options */
#undef	NOENUM			/* Define if compiler has no enum's */
#undef	NOSTRUCTASSIGN		/* Define if compiler can't assign structures */

#ifdef	NOSTRUCTASSIGN
#define	structassign(d, s)	memcpy(&(d), &(s), sizeof(d))
#else
#define	structassign(d, s)	d = s
#endif

#ifdef	NOENUM
#define	Ident1	1
#define	Ident2	2
#define	Ident3	3
#define	Ident4	4
#define	Ident5	5
typedef int	Enumeration;
#else
typedef enum	{Ident1, Ident2, Ident3, Ident4, Ident5} Enumeration;
#endif

typedef int	OneToThirty;
typedef int	OneToFifty;
typedef char	CapitalLetter;
typedef char	String30[31];
typedef int	Array1Dim[51];
typedef int	Array2Dim[51][51];

struct	Record
{
	struct Record		*PtrComp;
	Enumeration		Discr;
	Enumeration		EnumComp;
	OneToFifty		IntComp;
	String30		StringComp;
};

typedef struct Record 	RecordType;
typedef RecordType *	RecordPtr;
typedef int		boolean;

#ifndef NULL
#if LARGE_M
#define NULL		0L
#else
#define NULL		0
#endif
#endif

#define	TRUE		1
#define	FALSE		0

#ifndef REG
#define	REG
#endif

extern char *malloc(), *strcpy();

extern Enumeration	Func1();
extern boolean		Func2();

main()
{
	Proc0();
	return(0);
}

/*
 * Package 1
 */
int		IntGlob;
boolean		BoolGlob;
char		Char1Glob;
char		Char2Glob;
Array1Dim	Array1Glob;
Array2Dim	Array2Glob;
RecordPtr	PtrGlob;
RecordPtr	PtrGlobNext;

Proc0()
{
	OneToFifty		IntLoc1;
	REG OneToFifty		IntLoc2;
	OneToFifty		IntLoc3;
	REG char		CharLoc;
	REG char		CharIndex;
	Enumeration	 	EnumLoc;
	String30		String1Loc;
	String30		String2Loc;

/*
 * Note: LOOPS may be redefined on command line, e.g., cc -DLOOPS=20000 ...
 */
#ifndef LOOPS
# define LOOPS		1500
#endif

long	ms;
long	dhrystones;

register unsigned int i;

PtrGlobNext = (RecordPtr) malloc(sizeof(RecordType));
PtrGlob = (RecordPtr) malloc(sizeof(RecordType));
PtrGlob->PtrComp = PtrGlobNext;
PtrGlob->Discr = Ident1;
PtrGlob->EnumComp = Ident3;
PtrGlob->IntComp = 40;
strcpy(PtrGlob->StringComp, "DHRYSTONE PROGRAM, SOME STRING");

for (i = 0; i < LOOPS; ++i)
{

	Proc5();
	Proc4();
	IntLoc1 = 2;
	IntLoc2 = 3;
	strcpy(String2Loc, "DHRYSTONE PROGRAM, 2'ND STRING");
	EnumLoc = Ident2;
	BoolGlob = ! Func2(String1Loc, String2Loc);
	while (IntLoc1 < IntLoc2)
	{
		IntLoc3 = 5 * IntLoc1 - IntLoc2;
		Proc7(IntLoc1, IntLoc2, &IntLoc3);
		++IntLoc1;
	}
	Proc8(Array1Glob, Array2Glob, IntLoc1, IntLoc3);
	Proc1(PtrGlob);
	for (CharIndex = 'A'; CharIndex <= Char2Glob; ++CharIndex)
		if (EnumLoc == Func1(CharIndex, 'C'))
			Proc6(Ident1, &EnumLoc);
	IntLoc3 = IntLoc2 * IntLoc1;
	IntLoc2 = IntLoc3 / IntLoc1;
	IntLoc2 = 7 * (IntLoc3 - IntLoc2) - IntLoc1;
	Proc2(&IntLoc1);

}

dhrystones = (long) LOOPS * 1000L;
/* dhrystones /= ms; */
printf("This system benchmarks at %ld dhrystones/second [%ld loop iters]\r\n",
	dhrystones, (long) LOOPS);
}

Proc1(PtrParIn)
REG RecordPtr	PtrParIn;
{
#define	NextRecord	(*(PtrParIn->PtrComp))

	structassign(NextRecord, *PtrGlob);
	PtrParIn->IntComp = 5;
	NextRecord.IntComp = PtrParIn->IntComp;
	NextRecord.PtrComp = PtrParIn->PtrComp;
	Proc3(NextRecord.PtrComp);
	if (NextRecord.Discr == Ident1)
	{
		NextRecord.IntComp = 6;
		Proc6(PtrParIn->EnumComp, &NextRecord.EnumComp);
		NextRecord.PtrComp = PtrGlob->PtrComp;
		Proc7(NextRecord.IntComp, 10, &NextRecord.IntComp);
	}
	else
		structassign(*PtrParIn, NextRecord);

#undef	NextRecord
}

Proc2(IntParIO)
OneToFifty	*IntParIO;
{
	REG OneToFifty		IntLoc;
	REG Enumeration		EnumLoc;

	IntLoc = *IntParIO + 10;
	for(;;)
	{
		if (Char1Glob == 'A')
		{
			--IntLoc;
			*IntParIO = IntLoc - IntGlob;
			EnumLoc = Ident1;
		}
		if (EnumLoc == Ident1)
			break;
	}
}

Proc3(PtrParOut)
RecordPtr	*PtrParOut;
{
	if (PtrGlob != NULL)
		*PtrParOut = PtrGlob->PtrComp;
	else
		IntGlob = 100;
	Proc7(10, IntGlob, &PtrGlob->IntComp);
}

Proc4()
{
	REG boolean	BoolLoc;

	BoolLoc = Char1Glob == 'A';
	BoolLoc |= BoolGlob;
	Char2Glob = 'B';
}

Proc5()
{
	Char1Glob = 'A';
	BoolGlob = FALSE;
}

extern boolean Func3();

Proc6(EnumParIn, EnumParOut)
REG Enumeration	EnumParIn;
REG Enumeration	*EnumParOut;
{
	*EnumParOut = EnumParIn;
	if (! Func3(EnumParIn) )
		*EnumParOut = Ident4;
	switch (EnumParIn)
	{
	case Ident1:	*EnumParOut = Ident1; break;
	case Ident2:	if (IntGlob > 100) *EnumParOut = Ident1;
			else *EnumParOut = Ident4;
			break;
	case Ident3:	*EnumParOut = Ident2; break;
	case Ident4:	break;
	case Ident5:	*EnumParOut = Ident3;
	}
}

Proc7(IntParI1, IntParI2, IntParOut)
OneToFifty	IntParI1;
OneToFifty	IntParI2;
OneToFifty	*IntParOut;
{
	REG OneToFifty	IntLoc;

	IntLoc = IntParI1 + 2;
	*IntParOut = IntParI2 + IntLoc;
}

Proc8(Array1Par, Array2Par, IntParI1, IntParI2)
Array1Dim	Array1Par;
Array2Dim	Array2Par;
OneToFifty	IntParI1;
OneToFifty	IntParI2;
{
	REG OneToFifty	IntLoc;
	REG OneToFifty	IntIndex;

	IntLoc = IntParI1 + 5;
	Array1Par[IntLoc] = IntParI2;
	Array1Par[IntLoc+1] = Array1Par[IntLoc];
	Array1Par[IntLoc+30] = IntLoc;
	for (IntIndex = IntLoc; IntIndex <= (IntLoc+1); ++IntIndex)
		Array2Par[IntLoc][IntIndex] = IntLoc;
	++Array2Par[IntLoc][IntLoc-1];
	Array2Par[IntLoc+20][IntLoc] = Array1Par[IntLoc];
	IntGlob = 5;
}

Enumeration Func1(CharPar1, CharPar2)
CapitalLetter	CharPar1;
CapitalLetter	CharPar2;
{
	REG CapitalLetter	CharLoc1;
	REG CapitalLetter	CharLoc2;

	CharLoc1 = CharPar1;
	CharLoc2 = CharLoc1;
	if (CharLoc2 != CharPar2)
		return (Ident1);
	else
		return (Ident2);
}

boolean Func2(StrParI1, StrParI2)
String30	StrParI1;
String30	StrParI2;
{
	REG OneToThirty		IntLoc;
	REG CapitalLetter	CharLoc;

	IntLoc = 1;
	while (IntLoc <= 1)
		if (Func1(StrParI1[IntLoc], StrParI2[IntLoc+1]) == Ident1)
		{
			CharLoc = 'A';
			++IntLoc;
		}
	if (CharLoc >= 'W' && CharLoc <= 'Z')
		IntLoc = 7;
	if (CharLoc == 'X')
		return(TRUE);
	else
	{
		if (strcmp(StrParI1, StrParI2) > 0)
		{
			IntLoc += 7;
			return (TRUE);
		}
		else
			return (FALSE);
	}
}

boolean Func3(EnumParIn)
REG Enumeration	EnumParIn;
{
	REG Enumeration	EnumLoc;

	EnumLoc = EnumParIn;
	if (EnumLoc == Ident3) return (TRUE);
	return (FALSE);
}

#ifdef	NOSTRUCTASSIGN
memcpy(d, s, l)
register char	*d;
register char	*s;
int	l;
{
	while (l--) *d++ = *s++;
}
#endif