i wanted to add floating point in my sopc desgin.so I selected floating point hw in sopc builder.After compiling i wrote a code for floating point in nios ide.my code shown below.
# include <stdio.h># include <system.h># include <math.h># include "altera_avalon_timer_regs.h"# include "sys/alt_timestamp.h"# include "floating_point.h"# include <float.h>
int main()
{
float A = 32.223;
float B = 23.333;
float C_MUL1=0;
alt_u32 num_ticks = 0;
alt_u32 time1,time2;
if (alt_timestamp_start() < 0)
{
printf("Timer init failed \n");
}
else
{
printf("Floating point checking!\n\n");
time1 = alt_timestamp();
C_MUL1 = A*B;
time2 = alt_timestamp();
printf("C_MUL1= %f\n",C_MUL1);
printf("time1 is %u\n",time1);
printf("time2 is %u\n",time2);
}
return 0;
}
My qstion is whether my code is correct or not?Whether i needed to use custum instruction for accessing floating point?
regards,
Nasik
