Ohhh thanks, that sounds good.
Does the size of 72 kB include the C runtime library ?
Tomorrow I'll try to manage cross-compilation under cygwin....


Blue Swirl wrote:
we were at ~12kb machine code for the C side of the forth system at
one point. and after that, I think only drivers were added.

I did a quick test and disabled the drivers and filesystems, now we are at 
obj-sparc32/openbios-plain.elf:     file format elf32-sparc

Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         0000f578  ffd00000  ffd00000  00004000  2**14
                  CONTENTS, ALLOC, LOAD, CODE
  1 .rodata       0000179c  ffd10000  ffd10000  00014000  2**3
  2 .data         000000b0  ffd12000  ffd12000  00016000  2**2
                  CONTENTS, ALLOC, LOAD, DATA
  3 .bss          0006b000  ffd13000  ffd13000  00017000  2**3

Text and rodata can be merged and data segment can be set up manually. The 
interrupt vector table has alignment restriction of 16K which adds a lot of 
NOPs now, but most of that can be saved. So I think we are pretty close to 

Rolf Schroedter
German Aerospace Center
Institute of Planetary Research
D-12489 Berlin, Rutherfordstrasse 2
Tel/Fax:  (+49) (30) 67055-416/384
Email:    Rolf.Schroedter@dlr.de