programming for AT91RM9200 using keil

could someone please help me modify the below c program to work for AT91RM9200(ARM7TDMI)using keil simulation.
the program is for finding dct coefficients for input pixel values
#include<stdio.h>
#include<conio.h>
#include<math.h>
#define N 8
void main()
{ int i,j,k,l;
float f[10][10],fdct[10][10],a[10][10]; //input pixel values and output DCT coefficients
clrscr();
/*printf("\n Enter the input pixel values:\n");
for(i=0;i<N;i=i+1)
{ for(j=0;j<N;j=j+1) { scanf("%f\n ",&f[i][j]); //Reading input pixel values given by user }
} */ a[0][0]=23; a[0][1]=12; a[0][2]=14; a[0][3]=15; a[0][4]=30; a[0][5]=34; a[0][6]=10; a[0][7]=30;

a[1][0]=60; a[1][1]=70; a[1][2]=50; a[1][3]=70; a[1][4]=85; a[1][5]=90; a[1][6]=50; a[1][7]=94;

a[2][0]=54; a[2][1]=84; a[2][2]=30; a[2][3]=44; a[2][4]=50; a[2][5]=76; a[2][6]=80; a[2][7]=34;

a[3][0]=20; a[3][1]=22; a[3][2]=20; a[3][3]=33; a[3][4]=20; a[3][5]=93; a[3][6]=40; a[3][7]=58;

a[4][0]=43; a[4][1]=20; a[4][2]=10; a[4][3]=10; a[4][4]=40; a[4][5]=50; a[4][6]=60; a[4][7]=70;

a[5][0]=66; a[5][2]=60; a[5][3]=67; a[5][4]=60; a[5][5]=62; a[5][6]=70; a[5][7]=81;

a[6][0]=39; a[6][1]=35; a[6][2]=30; a[6][3]=38; a[6][4]=0; a[6][5]=34; a[6][6]=40; a[6][7]=42;

a[7][0]=60; a[7][1]=74 ; a[7][2]=70; a[7][3]=40; a[7][4]=35; a[7][5]=50; a[7][6]=40; a[7][7]=63;

a[8][0]=30; a[8][1]=40; a[8][2]=50; a[8][3]=42; a[8][4]=30; a[8][5]=21; a[8][6]=120; a[8][7]=230;
for(i=0;i<N;i=i+1)
{ for(j=0;j<N;j=j+1) { f[i][j]=a[i][j]; }
} for(i=0;i<N;i=i+1)
{ for(j=0;j<N;j=j+1) { printf("%f ",f[i][j]); } printf("\n");
} for(i=0;i<N;i=i+1)
{ for(j=0;j<N;j=j+1) { fdct[i][j]=0; for(k=0;k<N;k=k+1) { for(l=0;l<N;l=l+1) { if(i==0&&j==0) fdct[i][j]= fdct[i][j]+(1/4)*(1/2)*f[k][l]*cos((2*k+1)*i*3.14/16)*cos((2*l+1)*j*3.14/16); /*printf("%f ",fdct[i][j]); printf("%f ",(1/4)*(1/2)*f[k][l]); printf("%f ",f[k][l]); printf("%f ",cos((2*k+1)*i*3.14/16));*/ if(i==0&&j!=0) fdct[i][j]= fdct[i][j]+(1/sqrt(2))*(1/4)*f[k][l]*cos((2*k+1)*i*3.14/16)*cos((2*l+1)*j*3.14/16); if(i!=0&&j==0) fdct[i][j]= fdct[i][j]+(1/4)*(1/sqrt(2))*f[k][l]*cos((2*k+1)*i*3.14/16)*cos((2*l+1)*j*3.14/16); if(i!=0&&j!=0) fdct[i][j]= fdct[i][j]+(1/4)*f[k][l]*cos((2*k+1)*i*3.14/16)*cos((2*l+1)*j*3.14/16); } } } }

printf("\n");
printf("\n");
for(i=0;i<N;i=i+1)
{ for(j=0;j<N;j=j+1) { printf("%f ",fdct[i][j]); } printf("\n");
}

getch();
}