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Added a simple cycle count report to dhrystone #566

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Apr 20, 2021
Merged

Added a simple cycle count report to dhrystone #566

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9 changes: 8 additions & 1 deletion cv32e40x/tests/programs/custom/dhrystone/dhrystone.c
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Original file line number Diff line number Diff line change
Expand Up @@ -365,6 +365,8 @@

/* Compiler and system dependent definitions: */

// mm_ram cycle counter address
#define TICKS_ADDR (*((volatile uint32_t*)0x15001004))

#define Mic_secs_Per_Second 1000000.0
/* Berkeley UNIX C returns process times in seconds/HZ */
Expand Down Expand Up @@ -596,7 +598,8 @@ int main (int argc, char *argv[])

printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs);


// reset cycle counter
TICKS_ADDR = 0;

for (Run_Index = 1; Run_Index <= Number_Of_Runs; ++Run_Index)
{
Expand Down Expand Up @@ -693,6 +696,8 @@ int main (int argc, char *argv[])

} /* loop "for Run_Index" */

//record cycle counter
uint32_t cycle_cnt = TICKS_ADDR;

printf ("Execution ends%c", '\n');
printf (" %c", '\n');
Expand Down Expand Up @@ -746,6 +751,8 @@ int main (int argc, char *argv[])
printf ("Str_2_Loc: %s\n", Str_2_Loc);
printf (" should be: DHRYSTONE PROGRAM, 2'ND STRING%c", '\n');

printf ("Cycle count is %d \n", cycle_cnt);




Expand Down