The following sample code produces different result depending on the gcc version and target: gcc version target output 3.4.5 i386 n1: 226 n2: -30.33 4.1.2 (RedHat) i386 n1: 226 n2: -30.33 3.4.5 arm-softfloat n1: 0 n2: -30.33 4.1.1 arm n1: 226 n2: -30.33 >From the sample code above it is obvious that gcc 3.4.5 on arm-softfloat differs from the rest. The sample code: ==================== #include <stdio.h> int main(void) { unsigned char n1; float n2; n2 = -30.33F; n1 = (unsigned char)n2; printf("n1: %d n2: %3.2f\n", n1, n2); return 0; } ==================== I have not yet tried with a arm-softfloat gcc > 3.4.5 because Dan Kegel's crosstool do not have it out-of-the box. I assume this is a know bug that got fixed in later gcc's. I have tried searching the gcc bug database with no luck. Can anyone give a hint of when it was fixed or how I can better look it up myself? Thanks in advance, Sam