[fpc-pascal]Pascal Tutorial
Jonas Maebe
jonas at zeus.rug.ac.be
Mon Jun 10 15:14:14 CEST 2002
On maandag, juni 10, 2002, at 03:16 , Aitor SantamarĂa wrote:
> There's nothing that I myself miss on it, except for the ability to
> create 16-bit realmode DOS code, which seems to be considered beyond
> any possibility, because of the way pointers are handled (4 bits,
> always 32-bit offset).
The main problem is that in 16bit mode, only certain registers can be
used to address memory (bx, si, di, bp, maybe sp too?). Because the code
generator assumes all registers can be used to access memory, this would
require a complete rewrite.
Jonas
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