Usage of the APF
================

It is not easy guess how is used the APF.  In case somebody that doesn't
know it want to utilize the emulator, I include the essential
instructions.

If the computer start without any cartridge on, the screen presentation
of a game appears:  Rocket Patrol.  In order to choose any of the two
choices of the menu one must press "1" or "2" in any of the auxiliary
keyboards (see file TECLADO for the equivalence in the emulator)

If it start with a cartridge on, the corresponding presentation screen
appears.  If it exists a menu, the choices are chosen with the numeric
keys of the auxiliary keyboards.

In the case of the BASIC cartridge it doesn't exist menu,
but so that it begins to operate one must press "1" or" 2" in
any of the auxiliary keyboards.

Within the BASIC, some useful commands are:

CSAVE
  It records in the tape a program BASIC.

CLOAD
  It loads in memory one program from the tape.  The tape has to be in
the adequate position or the program won't be loaded correctly.
It is suitable to note the counter at the time of recording the
program.

EDIT <line num> <ESC> <substring to change> <ESC> <new substring>
  It is used as in order to edit a program line.  Usually it
is easier type it again because the result is not easily
predictable.

DIR or DIR 1
  The existent files in the disks A or B are shown.

SAVE "file" or SAVE "file" 1
  They record the BASIC program in some of the diskettes.

SAVE "file" K or SAVE "file" K1
  It erases a diskette file.

RUN "file" or RUN "file" 1
  It loads in memory a program from the diskette.

RUN
  It executes the BASIC program existent in the memory.

INIT or INIT 1
  Format a diskette.

In order to type a series of equal characters, one must maintain pressed
the REPEAT key.


You can find information on the APF in the page of Larry
Greenfield:

http://www.tcp.com/~lgreenf/apfpage.htm
