While researching some other historic information about Delphi, I bumped into this thread: New DPMI host – delphi.
If is a small thread describing what kinds and versions of DPMI hosts were available to run Turbo Pascal based programs.
DPMI stands DOS Protected Mode Interface: a way for real mode DOS programs to access protected mode features (mainly memory above the 1 megabyte barrier).
I had plainly forgotten that the DPMI host shipped with Delphi 1, and wasn’t aware you could have a 32-bit DPMI host at all.
Some other memory related abbreviations from that era:
- XMS (eXtended Memory Specification) – Wikipedia, the free encyclopedia.
- EMS (Expanded Memory Specification) – Wikipedia, the free encyclopedia.
- DPMS (DOS Protected Mode Services) – Wikipedia, the free encyclopedia.
- DOS extender – Wikipedia, the free encyclopedia.
- DOS memory management – Wikipedia, the free encyclopedia.
- UMA (Upper Memory Area) – Wikipedia, the free encyclopedia.
- VCPI (Virtual Control Program Interface) – Wikipedia, the free encyclopedia.
- HDPMI.
- DPMI 0.9 specs.
Fun (:
–jeroen
Filed under: Borland Pascal, Delphi, Delphi 1, Development, Object Pascal, Pascal, Software Development, Turbo Pascal
