ELITE SERIES USER MANUAL | CP/M ENHANCEMENTS |
The final "mount" message comes from the section of SGLDRIVE which is left in memory as part of the operating system (CP/M) after the bulk of SGLDRIVE goes away. This extra little “resi- dent” section of SGLDRIVE does not consume any of the user’s memory. It is loaded into that section of the operating system which is only required if you have more than one drive. And, since you don’t have more than one drive (other- wise you wouldn’t he running SGLDRIVE), this section of the operating system can he used for other purposes.
Once this “resident” portion of SGLDRIVE is loaded, CP/M as an operating system will begin recognizing two different drives (A: and B:), even though you only have the one physical drive attached to your Apple. SGLDRIVE “fools” CP/M into seeing another drive by constantly watching which drive CP/M (and standard programs running under CP/M, such as PIP) is trying to talk to at any particular time. Whenever CP/M changes from trying to talk to drive A: to trying to talk to drive B:, SGLDRIVE displays the message:
Mount B:, Press <ESC>
This gives you a chance to remove the diskette which CP/M thinks is the one in drive A:, and insert the diskette which CP/M thinks is in drive B:. Once you press:
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