/* This is a MODIFIED version of the Dhrystone 2.1 Benchmark program. The only changes which have been made are: 1) the 'old-style' K&R function declarations have been replaced with 'ANSI-C-style' function declarations (in dhry_1.c and dhry_2,c), and 2) function prototypes have been added (in dhry.h) 3) dhry.h uses CLOCKS_PER_SEC instead of CLK_TCK (to build with -strict) These changes allow an ANSI-C compiler to produce more efficient code, with no warnings. */ /* **************************************************************************** * * "DHRYSTONE" Benchmark Program * ----------------------------- * * Version: C, Version 2.1 * * File: dhry_1.c (part 2 of 3) * * Date: May 25, 1988 * * Author: Reinhold P. Weicker * **************************************************************************** */ #include "mk_uart.h" #include "mk_trace.h" #include "mk_reset.h" #include "mk_clock.h" #include "mk_calib.h" #include "mk_wdt.h" #include "mk_gpio.h" #include "libc_rom.h" #include "board.h" #include "dhry.h" /* Global Variables: */ Rec_Pointer Ptr_Glob, Next_Ptr_Glob; int Int_Glob; Boolean Bool_Glob; char Ch_1_Glob, Ch_2_Glob; int Arr_1_Glob [50]; int Arr_2_Glob [50] [50]; #ifndef REG Boolean Reg = false; #define REG /* REG becomes defined as empty */ /* i.e. no register variables */ #else Boolean Reg = true; #endif /* variables for time measurement: */ #ifdef TIMES struct tms time_info; extern int times (void); /* see library function "times" */ #define Too_Small_Time (2*HZ) /* Measurements should last at least about 2 seconds */ #endif #ifdef TIME extern long time(long *); /* see library function "time" */ #define Too_Small_Time 2 /* Measurements should last at least 2 seconds */ #endif #ifdef MSC_CLOCK extern clock_t clock(void); #define Too_Small_Time (2*HZ) #endif long Begin_Time, End_Time, User_Time; float Microseconds, Dhrystones_Per_Second; #ifdef NOMSG /*extern void EarlyExit(void);*/ #endif /* end of variables for time measurement */ #if defined(__ICCARM__) #pragma diag_suppress = Pe111 #endif int main(void) /*****/ /* main program, corresponds to procedures */ /* Main and Proc_0 in the Ada version */ { One_Fifty Int_1_Loc; REG One_Fifty Int_2_Loc; One_Fifty Int_3_Loc; REG char Ch_Index; Enumeration Enum_Loc; Str_30 Str_1_Loc; Str_30 Str_2_Loc; REG int Run_Index; REG int Number_Of_Runs; #ifdef EXPECTED_SYST volatile unsigned *p = (unsigned*)0xE000E010; // Systick #endif board_clock_run(); board_pins_config(); board_debug_console_open(TRACE_PORT_UART0); // Reset reason reset_cause_get(); reset_cause_clear(); // Chip calibration calib_chip(); // Disable watchdog timer wdt_close(WDT_ID0); mk_printf("Dhrystone\r\n"); gpio_open(); board_led_init(); board_configure(); /* Initializations */ Next_Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type)); Ptr_Glob->Ptr_Comp = Next_Ptr_Glob; Ptr_Glob->Discr = Ident_1; Ptr_Glob->variant.var_1.Enum_Comp = Ident_3; Ptr_Glob->variant.var_1.Int_Comp = 40; strcpy (Ptr_Glob->variant.var_1.Str_Comp, "DHRYSTONE PROGRAM, SOME STRING"); strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING"); Arr_2_Glob [8][7] = 10; /* Was missing in published program. Without this statement, */ /* Arr_2_Glob [8][7] would have an undefined value. */ /* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */ /* overflow may occur for this array element. */ #ifdef NOMSG Number_Of_Runs = ITERATIONS; #else mk_printf("\n"); mk_printf("Dhrystone Benchmark, Version 2.1 (Language: C)\n"); mk_printf("\n"); if (Reg) { mk_printf("Program compiled with 'register' attribute\n"); mk_printf("\n"); } else { mk_printf("Program compiled without 'register' attribute\n"); mk_printf("\n"); } mk_printf("Please give the number of runs through the benchmark: "); { //int n; // scanf ("%d", &n); Number_Of_Runs = ITERATIONS; } mk_printf("\n"); mk_printf("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs); #endif /***************/ /* Start timer */ /***************/ board_led_on(BOARD_LED_2); #ifdef TIMES times (&time_info); Begin_Time = (long) time_info.tms_utime; #endif #ifdef TIME Begin_Time = time ( (long *) 0); #endif #ifdef MSC_CLOCK #ifdef EXPECTED_SYST p[1] = 0x00FFFFFF; /* Reload value : lots of time */ p[2] = 0x0; /* Current value clear to 0x0 */ p[0] = 0x1; /* Enable systick, no interrupt */ //Begin_Time = (*((volatile unsigned long *)(0xE000E018))); Begin_Time = 0x1000000; #else Begin_Time = 0; #endif #endif for (Run_Index = 1; Run_Index <= Number_Of_Runs; ++Run_Index) { Proc_5(); Proc_4(); /* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */ Int_1_Loc = 2; Int_2_Loc = 3; strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING"); Enum_Loc = Ident_2; Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc); /* Bool_Glob == 1 */ while (Int_1_Loc < Int_2_Loc) /* loop body executed once */ { Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc; /* Int_3_Loc == 7 */ Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc); /* Int_3_Loc == 7 */ Int_1_Loc += 1; } /* while */ /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc); /* Int_Glob == 5 */ Proc_1 (Ptr_Glob); for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index) /* loop body executed twice */ { if (Enum_Loc == Func_1 (Ch_Index, 'C')) /* then, not executed */ { Proc_6 (Ident_1, &Enum_Loc); strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING"); Int_2_Loc = Run_Index; Int_Glob = Run_Index; } } /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */ Int_2_Loc = Int_2_Loc * Int_1_Loc; Int_1_Loc = Int_2_Loc / Int_3_Loc; Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc; /* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */ Proc_2 (&Int_1_Loc); /* Int_1_Loc == 5 */ } /* loop "for Run_Index" */ #ifdef EARLY_EXIT exit(0); #endif /**************/ /* Stop timer */ /**************/ #ifdef TIMES times (&time_info); End_Time = (long) time_info.tms_utime; #endif #ifdef TIME End_Time = time ( (long *) 0); #endif #ifdef MSC_CLOCK #ifdef EXPECTED_SYST End_Time = p[2]; // Get current value; #else End_Time = 1; #endif #endif board_led_off(BOARD_LED_2); #ifdef NOMSG #ifdef ENABLE_THUMB mk_printf("\n"); mk_printf("\n"); exit(1); #else exit(0); /*EarlyExit();*/ #endif /* Uncomment these lines if compiling with tcc (thumb) */ #endif mk_printf("Execution ends\n"); mk_printf("\n"); mk_printf("Final values of the variables used in the benchmark:\n"); mk_printf("\n"); mk_printf("Int_Glob: %d\n", Int_Glob); mk_printf(" should be: %d\n", 5); mk_printf("Bool_Glob: %d\n", Bool_Glob); mk_printf(" should be: %d\n", 1); mk_printf("Ch_1_Glob: %c\n", Ch_1_Glob); mk_printf(" should be: %c\n", 'A'); mk_printf("Ch_2_Glob: %c\n", Ch_2_Glob); mk_printf(" should be: %c\n", 'B'); mk_printf("Arr_1_Glob[8]: %d\n", Arr_1_Glob[8]); mk_printf(" should be: %d\n", 7); mk_printf("Arr_2_Glob[8][7]: %d\n", Arr_2_Glob[8][7]); mk_printf(" should be: Number_Of_Runs + 10\n"); mk_printf("Ptr_Glob->\n"); mk_printf(" Ptr_Comp: %d\n", (int) Ptr_Glob->Ptr_Comp); mk_printf(" should be: (implementation-dependent)\n"); mk_printf(" Discr: %d\n", Ptr_Glob->Discr); mk_printf(" should be: %d\n", 0); mk_printf(" Enum_Comp: %d\n", Ptr_Glob->variant.var_1.Enum_Comp); mk_printf(" should be: %d\n", 2); mk_printf(" Int_Comp: %d\n", Ptr_Glob->variant.var_1.Int_Comp); mk_printf(" should be: %d\n", 17); mk_printf(" Str_Comp: %s\n", Ptr_Glob->variant.var_1.Str_Comp); mk_printf(" should be: DHRYSTONE PROGRAM, SOME STRING\n"); mk_printf("Next_Ptr_Glob->\n"); mk_printf(" Ptr_Comp: %d\n", (int) Next_Ptr_Glob->Ptr_Comp); mk_printf(" should be: (implementation-dependent), same as above\n"); mk_printf(" Discr: %d\n", Next_Ptr_Glob->Discr); mk_printf(" should be: %d\n", 0); mk_printf(" Enum_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp); mk_printf(" should be: %d\n", 1); mk_printf(" Int_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp); mk_printf(" should be: %d\n", 18); mk_printf(" Str_Comp: %s\n", Next_Ptr_Glob->variant.var_1.Str_Comp); mk_printf(" should be: DHRYSTONE PROGRAM, SOME STRING\n"); mk_printf("Int_1_Loc: %d\n", Int_1_Loc); mk_printf(" should be: %d\n", 5); mk_printf("Int_2_Loc: %d\n", Int_2_Loc); mk_printf(" should be: %d\n", 13); mk_printf("Int_3_Loc: %d\n", Int_3_Loc); mk_printf(" should be: %d\n", 7); mk_printf("Enum_Loc: %d\n", Enum_Loc); mk_printf(" should be: %d\n", 1); mk_printf("Str_1_Loc: %s\n", Str_1_Loc); mk_printf(" should be: DHRYSTONE PROGRAM, 1'ST STRING\n"); mk_printf("Str_2_Loc: %s\n", Str_2_Loc); mk_printf(" should be: DHRYSTONE PROGRAM, 2'ND STRING\n"); mk_printf("\n"); #ifdef EXPECTED_SYST User_Time = Begin_Time - End_Time; // SysTick is a decrement counter #else User_Time = End_Time - Begin_Time; #endif mk_printf("Number of cycles for %d iteration is %ld\n",Number_Of_Runs,User_Time); if (User_Time < Too_Small_Time) { mk_printf("Measured time too small to obtain meaningful results\n"); mk_printf("Please increase number of runs\n"); mk_printf("\n"); } else { #ifdef TIME Microseconds = (float) User_Time * Mic_secs_Per_Second / (float) Number_Of_Runs; Dhrystones_Per_Second = (float) Number_Of_Runs / (float) User_Time; #else Microseconds = (float) User_Time * Mic_secs_Per_Second / ((float) HZ * ((float) Number_Of_Runs)); Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs) / (float) User_Time; #endif mk_printf("Microseconds for one run through Dhrystone: "); mk_printf("%6.1f \n", Microseconds); mk_printf("Dhrystones per Second: "); mk_printf("%6.1f \n", Dhrystones_Per_Second); mk_printf("%.2f DMIPS/MHz \n", Dhrystones_Per_Second/1757/62.5); mk_printf("\n"); } while(1); return 0; } void Proc_1 (REG Rec_Pointer Ptr_Val_Par) /******************/ /* executed once */ { REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp; /* == Ptr_Glob_Next */ /* Local variable, initialized with Ptr_Val_Par->Ptr_Comp, */ /* corresponds to "rename" in Ada, "with" in Pascal */ structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob); Ptr_Val_Par->variant.var_1.Int_Comp = 5; Next_Record->variant.var_1.Int_Comp = Ptr_Val_Par->variant.var_1.Int_Comp; Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp; Proc_3 (&Next_Record->Ptr_Comp); /* Ptr_Val_Par->Ptr_Comp->Ptr_Comp == Ptr_Glob->Ptr_Comp */ if (Next_Record->Discr == Ident_1) /* then, executed */ { Next_Record->variant.var_1.Int_Comp = 6; Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp, &Next_Record->variant.var_1.Enum_Comp); Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp; Proc_7 (Next_Record->variant.var_1.Int_Comp, 10, &Next_Record->variant.var_1.Int_Comp); } else /* not executed */ structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp); } /* Proc_1 */ void Proc_2 (One_Fifty *Int_Par_Ref) /******************/ /* executed once */ /* *Int_Par_Ref == 1, becomes 4 */ { One_Fifty Int_Loc; Enumeration Enum_Loc; Int_Loc = *Int_Par_Ref + 10; do /* executed once */ if (Ch_1_Glob == 'A') /* then, executed */ { Int_Loc -= 1; *Int_Par_Ref = Int_Loc - Int_Glob; Enum_Loc = Ident_1; } /* if */ while (Enum_Loc != Ident_1); /* true */ } /* Proc_2 */ void Proc_3 (Rec_Pointer *Ptr_Ref_Par) /******************/ /* executed once */ /* Ptr_Ref_Par becomes Ptr_Glob */ { if (Ptr_Glob != Null) /* then, executed */ *Ptr_Ref_Par = Ptr_Glob->Ptr_Comp; Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp); } /* Proc_3 */ void Proc_4 (void) /* without parameters */ /*******/ /* executed once */ { Boolean Bool_Loc; Bool_Loc = Ch_1_Glob == 'A'; Bool_Glob = Bool_Loc | Bool_Glob; Ch_2_Glob = 'B'; } /* Proc_4 */ void Proc_5 (void) /* without parameters */ /*******/ /* executed once */ { Ch_1_Glob = 'A'; Bool_Glob = false; } /* Proc_5 */ /* Procedure for the assignment of structures, */ /* if the C compiler doesn't support this feature */ #ifdef NOSTRUCTASSIGN memcpy (d, s, l) register char *d; register char *s; register int l; { while (l--) *d++ = *s++; } #endif