gcc flag: what to add

[Prasanta Sadhukhan]

Hi

I have downloaded the
http://www.codesourcery.com/sgpp/lite/superh/portal/subscription?@template=lite(GNU/Linux)
SH toolchain

and compiled a simple program for SH7712 chipset (which supports sh3/sh4
architecture) as below

using sh-linux-gnu-gcc -m3 -Wa,--isa=sh3

but I am getting "Illegal Instruction" for printing "float" value. If I
remove "float" usage then I can get the program to work

I tried -m4-nofpu & other -m flags but to no avail

#include <stdio.h>

void main()
{
int num=1;
float flnum=1.0;
if(*(char *)&num==1)
printf("Little Endian %f\n",flnum);
else
printf("Big Endian %f\n",flnum);
}

Can you please suggest as to what gcc flags I need to use to make the
program work. My original app use lots of float instructions
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