Apple Logic Board Informações Técnicas descarregar pdf (Página 13)

other expansion RAM boards (Saturn 32K, 64K, 128K) Removal of

the Apple Language Card is required for operation in these cases.

Support of the language card is expected in a future release

of the CP/M and DOS Pseudo—Disks, which will be made available to

Saturn RAM board users at minimal cost.

An alternate solution to the multi—board Language card

memory conflict problem involves a hardware modification to the

Apple Language card. This modification is described in the Dec.

1981 issue of Softalk Magazine (vol. 2), p. 184. This

modification will result in the elimination of the ROM address

conflict, so that the Language card can be used just like any

other 16K RAM board, in as far as the software supplied with the

Saturn 64K and 128K boards is concerned.

IV. OVERVIEW OF SOFTWARE

The following is a brief description of the software packages

included with the Saturn ~4K and 128K RAM boards:

A. MOVEDOS (Chapter 4)

This program will relocate DOS 3.2 or 3.3 into the second

16K bank of the 64K or 128K RAM board, freeing up approximately

10K of memory. Integer or Applesoft Basic can be loaded into the

RAM board and accessed from the card as well as DOS.

This

program is very useful in applications where memory is a

limitation.

B. RAMEXPAND (Chapter 5)

This package consists of a set of utility subroutines

accessible from Applesoft or Integer Basic which enable one to

accomplish very rapid data transfer from program memory to the

memory on expansion RAM boards (32K, 64K, and 128K boards).

Arrays, subroutines, and parts of programs can be saved and

loaded from the memory on the expansion boards very rapidly so as

to maintain ready access to this information. This package will

work in the relocated DOS environment as well as with a normal

DOS.

C. DOS PSEUDO—DISK (Chapter 6)

This package allows you to use one or more Saturn RAM boards

to emulate a standard disk drive. The software works with a

normal DOS as well as a relocated DOS on Saturn 32K, 64K, and

128K RAM boards, and 16K boards.

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Apple Logic Board Informações Técnicas Página 13