mirror of
https://git.FreeBSD.org/ports.git
synced 2024-11-04 22:33:27 +00:00
c774e181e3
A text based Apple IIe ProDOS emulator. PR: 2817 Submitted by: Joel Sutton <sutton@aardvark.apana.org.au>
94 lines
4.3 KiB
Plaintext
94 lines
4.3 KiB
Plaintext
Prodosemu is a text based Apple IIe ProDOS emulator. Unlike most
|
|
popular Apple emulators it does not use disk images, instead it uses
|
|
the UNIX file-system. If you have an Apple IIe then you will need to
|
|
transfer your programs/files into a directory somewhere with your
|
|
favorite comm's program. Otherwise you will need to install the aftp
|
|
port to pull the files out from the Apple disk images that are widely
|
|
available on the net (eg the ProDOS system disk available from
|
|
asimov).
|
|
|
|
The rom file (included) is stored in /usr/local/lib/apple2 (or similar
|
|
path on your system) under the name "prodos-2e.rom". I've adopted this
|
|
title so that Prodosemu can co-exist with the other apple emulators in
|
|
the ports collection.
|
|
|
|
There is no man page for this program so I have included the slightly
|
|
modified README at the end of this document.
|
|
|
|
Check out the following for all things Apple II:
|
|
|
|
ftp://ftp.apple.asimov.net/ - Apple II archives
|
|
news://comp.emulators.apple2/ - Apple II news group
|
|
|
|
Share and enjoy,
|
|
Joel...
|
|
sutton@aardvark.apana.org.au
|
|
|
|
===========
|
|
ProDOS Emulator by Matthew Ghio v0.1 of January 8, 1996
|
|
|
|
To use prodosemu you will need a copy of the Apple IIe ROM. To get the
|
|
ROM from an Apple IIe, boot into prodos/basic and do the following:
|
|
|
|
]CALL -151
|
|
*C007:0
|
|
*2100<C100.FFFFM
|
|
*C006:0
|
|
*bsave apple.rom,a$2100,l$3f00
|
|
|
|
Then use your favorite communications software to upload it to your unix
|
|
system. At this time you should also upload some common programs, such
|
|
as BASIC.SYSTEM and SHRINKIT. Put these files in the same directory as
|
|
the prodos emulator. You do not need a copy of ProDOS to run the emulator.
|
|
|
|
To run ProDOS applications on your unix system, type 'prodos' and the
|
|
application name, at your shell prompt. The ProDOS emulator will load
|
|
the application into a virtual Apple IIe and execute it. Any ProDOS MLI
|
|
calls are trapped and the equivalent file operations are performed via
|
|
unix kernel calls. Your current directory appears as a disk named /UNIX
|
|
mounted on slot 7, drive 1. For example, typing
|
|
prodos BASIC.SYSTEM
|
|
will launch Applesoft Basic. Type CAT,S7,D1 to see the files in your
|
|
directory. Remember that Prodos filenames are UPPERCASE and limited to 15
|
|
characters. (Prodosemu actually does allow you to create and access
|
|
filenames longer than 15 characters, but only those filenames 15 characters
|
|
or less will show up in directory listings. This is due to the fact that
|
|
Prodos's directory entries have a fixed size buffer which can only hold 15
|
|
characters.) When you are finished with basic, type BYE to return to the
|
|
unix shell prompt.
|
|
|
|
If you want to make another directory the working directory when running
|
|
ProDOS applications, use the -w command line option. By default, the
|
|
working directory becomes the root of the similated ProDOS filesystem.
|
|
If you wish to make another directory the root of the ProDOS filesystem
|
|
while launching prodos, use the -r option. The program does not do a
|
|
chroot, and it is possible to get out of the ProDOS root directory by
|
|
using .. or following a symbolic link.
|
|
|
|
As files are read and written by Prodos applications to the simulated
|
|
filesystem, they are read and written to the corresponding directory
|
|
in your unix filesystem. Prodos-specific filetype information is stored
|
|
in a .prodosdir file, which is automatically created in each directory
|
|
if it does not already exist. Filetypes are ignored by Prodosemu when
|
|
launching applications. Because the ProDOS Emulator does not use disk
|
|
images, disk copiers such as Copy II Plus will not work. Ordinary file
|
|
copiers and other utilities work fine.
|
|
|
|
On an Apple II, the up arrow is Control-K, down is Control-J, left is
|
|
Control-H, and right is Control-U. You may need to use these control
|
|
characters in some applications.
|
|
|
|
This program uses Randy Frank's 65C02 emulator and I/O code. While the
|
|
emulation is running, you can use the following key sequences:
|
|
Ctrl-A Q Quits
|
|
Ctrl-A D Enters the debugger
|
|
Ctrl-A 0 Toggles the state of the open-apple key
|
|
Ctrl-A 1 Toggles the state of the closed-apple key
|
|
Ctrl-A S Inputs a control-s
|
|
Ctrl-A Ctrl-A Inputs a real control-a
|
|
After doing a Control-A 0 to toggle the state of the open-apple key, don't
|
|
forget to do another Ctrl-A 0 to put it back!
|
|
|
|
The files 6502.c, mega2.c, and debug.c are copyright 1990 Randy Frank and
|
|
are distrbuted under the included license agreement.
|