@x 104
@d print(#)==write(#)
@d print_ln(#)==write_ln(#)
@d print_nl==write_ln
@y
@d print(#)==write(tty,#)
@d print_ln(#)==write_ln(tty,#)
@d print_nl==write_ln(tty)
@z

@x 108
@p program GF_to_PXL(@!gf_file,@!pxl_file,@!output);
@y
@p program GF_to_PXL(@!gf_file:-,@!pxl_file:+);
@z

@x 707
begin reset(gf_file);
@y
begin reset(gf_file,'','/B:8');
@z

@x
begin rewrite(pxl_file);
@y
begin rewrite(pxl_file,'','/B:8');
@z