Hi,
this is my C code:
# include <stdio.h>
# include "alt_types.h"
# include "system.h"
# include "altera_avalon_performance_counter.h"
int main()
{
PERF_RESET(PERFORMANCE_COUNTER_BASE);
PERF_START_MEASURING(PERFORMANCE_COUNTER_BASE);
PERF_BEGIN(PERFORMANCE_COUNTER_BASE, 1);
int x,y,z;
x=10;
y=10;
z=x+y;
PERF_END(PERFORMANCE_COUNTER_BASE, 1);
PERF_STOP_MEASURING(PERFORMANCE_COUNTER_BASE);
perf_print_formatted_report((void*)PERFORMANCE_COUNTER_BASE, ALT_CPU_FREQ,2, "total","time" );
// printf("value of c %d\n",c);
return 0;
}
I get the following output: from console:
nios2-terminal: connected to hardware target using JTAG UART on cable
nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0
nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)
--Performance Counter Report--
Total Time: 8.98E-06 seconds (449 clock-cycles)
+---------------+-----+-----------+---------------+-----------+
| Section | % | Time (sec)| Time (clocks)|Occurrences|
+---------------+-----+-----------+---------------+-----------+
|total | 72.4| 0.00001| 325| 1|
+---------------+-----+-----------+---------------+-----------+
|time | 0| 0.00000| 0| 0|
+---------------+-----+-----------+---------------+-----------+
Is the total clock cycles shown correct; because for just addition operation , does the Nios II take these many clock cycles?.
anyone pls help me whether I'm doing the right thing.
Thanks,
Anand
