Apple CS II Guide de l'utilisateur télécharger pdf (Page 77)

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DOS Books

The DOS Manual from Apple

Beneath Apple DOS by Worth & Lechner

Apple II User's Guide by Poole, Martin, and Cook

ProDOS Books

ProDOS Technical Reference Manual from Apple (Addison-Wesley)

Beneath Apple ProDOS by Worth & Lechner

Exploring Apple GS/OS and ProDOS 8 by Little

ProDOS Inside and Out by Doms and Weishaar

______________________________

From: Dennis Jenkins, Rubywand, Dave Althoff

041- How can a BASIC program tell which DOS it's running

under?

A pretty good way is to check the three-byte JMP command starting at $03D0.

If it's 4C 00 BE, you're running ProDOS; if it's 4C BF 9D, you're running DOS

3.3 or a compatible variant (such as Prontodos).

Two (moderately rare) factors may change the DOS 3.3 JMP: 1- On old "slave

disks" created on sub-48k Apple II's, DOS loads in at a lower address; 2- DOS

3.3 is sometimes moved up into the Language Card. So, your best procedure is

probably to check for ProDOS and, if it isn't ProDOS, just presume that it's DOS

3.3.

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Apple CS II Guide de l'utilisateur Page 77

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