Hi Charles.

26-Sep-03 03:27:04, Charles Angelich wrote to Bob Stout


 CA> 1237d03b0f3e c_echo

 CA> Hello Bob -

 HA>>>> The GNU compiler for DOS produces 80kb .exe for this test! Is
 HA>>>> the GNU compiler djgpp a toy thing?

 >> On Linux it takes 4kb, very weird it takes so much under DOS!

 BS>> The fault is in the libraries... DJGPP was the first PC port of
 BS>> gcc and the libraries are really terrible! Link in almost
 BS>> anything and most of the library gets sucked in with it whether
 BS>> you need it or not.

 CA> I have followed some instructions to modify Borland to use a very
 CA> tiny 'model' that allows me to compile binaries the size of ASM
 CA> source code binaries but it requires the use of bios calls for
 CA> screen displays (as ASM would do it). I haven't used it in more
 CA> than a decade but it did work. ;-)

yeah, Compilers just convert C to assembler, and if you modify the stub
(the bit that calls main) you can reduce the size of your executable...

at the cost of things like malloc, printf, time, and argv which won't work
if the data structures they need aren't initialised....






 -=> Bye <=-

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