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/*
 * this alone program generate the partical code for key_perm.v
 */ 
#include <stdio.h>
#include <string.h>
#include <memory.h>
#include <assert.h>
unsigned char key_perm[0x40] = {
    0x12,0x24,0x09,0x07,0x2A,0x31,0x1D,0x15,0x1C,0x36,0x3E,0x32,0x13,0x21,0x3B,0x40,
    0x18,0x14,0x25,0x27,0x02,0x35,0x1B,0x01,0x22,0x04,0x0D,0x0E,0x39,0x28,0x1A,0x29,
    0x33,0x23,0x34,0x0C,0x16,0x30,0x1E,0x3A,0x2D,0x1F,0x08,0x19,0x17,0x2F,0x3D,0x11,
    0x3C,0x05,0x38,0x2B,0x0B,0x06,0x0A,0x2C,0x20,0x3F,0x2E,0x0F,0x03,0x26,0x10,0x37,
};
 
unsigned char unkey_perm[0x40];
 
#define RI(i) ((i)/8*8+(7-((i)%8)))
 
int main()
{
        int i;
        int n;
        int sp;
        int tp;
        memset(unkey_perm,0,sizeof unkey_perm); 
        for(i=0;i<64;i++)
        {
                for(n=0;n<64;n++)
                {
                        if(key_perm[n]==RI(i)+1)
                                break;
                }
                assert(n<64);
                n=RI(n);
                unkey_perm[i]=n;
        }
 
        for (i=63;i>=0;i--)
        {
                printf("i_key[6\'h%02x]", unkey_perm[i]);
                printf(",");
                if((i%4)==0)
                        printf("\n");
        }
        return 0;
}