Apple Logic Board Technical Information PDF herunterladen (Seite 23)

After running MOVEDOS (or booting the relocated DOS), the

following memory map describes the same system (Apple II plus,

48K, INTEGER present in RAM board). Again, the additional 4K

banks are not shown in the figure.

MAIN BOARD 1st Bank 2nd Bank

$FFFF $FFFF $FFFF

MAIN MONITOR MONITOR

BOARD

ROMS INTEGER RELOCATED

BASIC DOS

(APPLE SOFT) FILE **

PR. AID BUFFERS

$DOOO $DOOO $DOOO

Apple

I/O Saturn RAM board

(only 1st two banks shown)

$C000

DOS *

$BEOO =HIMEM

FREE

FOR

USE

$9600

RELOCATED DOS CONFIGURATION WITH INTEGER PRESENT IN RAM BOARD

[APPLE II PLUS]

__________________________________________________________________

* The routines in this location ($BEOO-$BFFF) serve to enable

the portion of the Saturn RAM board which contains the relo-

cated DOS and set pointers for operation with this DOS.

** With MAXFILES = 3, all of DOS, including the file buffers

fits in the second bank of the ram board. If MAXFILES is

increased beyond 3, then the memory space below $BEOO is

used, starting at this location, in increments of 595 bytes

for the additional file buffers required. HIMEM is

adjusted to reflect this.

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Apple Logic Board Technical Information Seite 23