According to Frank Heckenbach:

I declared all eax, ebx, ecx, edx, esi and edi as clobbered. Do I need more? (ebp? What about segment registers, anyway?)

I think if you include `ebp' you are safe. However you should better look up the register usage from a suitable book whenever you invoke a certain interrupt. This improves performance.

Peter

Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal [970510] - http://home.pages.de/~gnu-pascal/ [970125]