Patrice Mandin wrote:
Speaking of fixes, there is a check in mintlib (or in its crt.o) that display a message and exit, when you try to run a program,which was not compiled for your cpu (i.e. running a 020 program on 68000). Well, it does not work, but I don't remember exactly why.
You are probably speaking of that code in mintlib/main.c, in the function __libc_main()
/* Check hardware requirements. */
#ifdef __M68020__
if (Getcookie (C__CPU, &l) != C_FOUND || l < 20)
__libc_fatal ("this program requires an m68020 cpu or higher!");
#endif
#ifdef __M68881__
if (Getcookie (C__FPU, &l) != C_FOUND || l == 0)
__libc_fatal ("this program requires an fpu!");
#endif
It would be a good idea, but unfortunately a program compiled with
-m68020-60 which is run on a 68000 crashes far before that test, in the
function _crtinit(), because it is written in C and of course optimized
for the target CPU, using specific instructions (it crashes on the
instruction "extb.l")
The only reliable solution is to check for the CPU very early in assembler, when no C code has been called yet.
-- Vincent Rivière