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Mac Magazin/MacEasy 12
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Mac Magazin and MacEasy Magazine CD - Issue 12.iso
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Sharewarebibliothek
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Anwendungen
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Rainbow Demo
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Read Me First
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1995-07-25
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224 lines
----------------------------------------------------------------------------
Rainbow - An Atari 400/800/800XL Emulator for the Apple Macintosh
----------------------------------------------------------------------------
Demo version
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Welcome to Rainbow, an Atari 8 bit emulator for the Apple Mac!!!
Now you can run many of your favourite Atari 8 bit software on your Mac.
The version included here is a demo. Here's a quick list of key features
in the full shareware version.
• Emulates 400/800 and 800XL machines
• Has 48K RAM for 400/800 machines; full 64K RAM for 800XL
• Accepts 8K and 16K cartridge images; also runs Super Cartridges
• True 256 Atari colours
• Full ANTIC/GTIA graphics, namely all ANTIC modes, Player/Missile
Graphics, fine scrolling and Display List Interrupts
• Two virtual disk drives capable of reading single and enhanced
density images
• Transfer files between disk images and your Mac hard disk
• Sound with 4 channels of pure tones and improvised noise
• Four joysticks (via keypad) and four paddles (using mouse)
• Plays many games such as PacMan, Defender, Joust, Qix, Eastern Front,
Zaxxon, M.U.L.E., Montezuma's Revenge, Donkey Kong, Miner 2049er,
Necromancer, Karateka, Drol, Kaboom, Pole Position II and, of course,
Star Raiders.
The demo has the full graphics emulation of the shareware version except for
vertical fine scrolling.
Two versions of Rainbow are provided; one for the PowerMac and one for 680x0
computers. It goes without saying that the PowerMac version is much faster and
much more fun! However, faster '040 machines (33 Mhz+) also run at very
reasonable speeds. You should also have System 7 or later installed with
Sound Manager 3.1 if you have a PowerMac.
What's inside?
--------------
Inside the Rainbow folder, there should be the following items:-
• Rainbow Demo applications (one for PPC and another for 680x0 machines)
• Demo version of the F.R.E.E. adventure game (2 x images)
• Disk image containing 3 demos
• Read Me First text file (this one)
• Appendices text file
• Registration text file
• Unhex folder with the Unhex application
• An icon for OS files
Don't alter or remove the 3 text files; the demo won't launch without them.
Let's go!
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*** Before you can run Rainbow you will need an image of the 10K 400/800 OS ***
Due to copyright restrictions, Atari ROM images are not included and
you will have to transfer the ROM from your 8 bit machine to the Mac via
an 850 Interface Module. See the 'Appendices' text file for details.
Let's assume the 400/800 OS is on your Mac hard drive. Rename it OP_SYSTEM and
put it in the same folder as Rainbow.
***** IMPORTANT: Set your monitor to 256 colours *****
For maximum speed, set your monitor to 640x480 resolution.
Now launch Rainbow, you should see the familiar blue MEMO PAD screen.
Insert the demo disk and re-boot (select 'Yes...' under 'Re-boot' menu),
which is like switching your Atari off and on again. The mouse pointer changes
into an orange Atari fuji logo which indicates that drive#1 is being accessed.
One disk will present you with a menu of 3 demos to try out. The other 2 are
for the F.R.E.E. demo game. Insert disk 1, re-boot and follow the instructions
from there. Use the 'joystick' (see below) to select the command and 'fire' to
execute it.
After you've finished playing with the demos, select 'Re-Init' under the
'Re-boot' menu. This removes all cartridges and disks from the drives and
returns you to the Memo Pad as though you'd just launched Rainbow.
Try inserting a cartridge (under the 'System' menu), e.g. BASIC. If successful,
the system will automatically re-boot and present you with the READY prompt.
Say you want to now boot up BASIC with DOS. Insert a disk image with DOS
into drive#1. Rainbow will recognise standard images as well as ATR
ones in either single or enhanced densities (standard images are carbon
copies of the floppy disk image; an ATR image is a standard image with
a 16 byte header).
Now simply re-boot.
After a few moments, you will be back in the BASIC but this time DOS is present.
To check, just type DOS and you will go into the DOS utility menu.
N.B. A quicker way to start up in BASIC with DOS booted is to first insert
the disk image and then insert the cartridge.
Frame rate
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A real Atari 400/800/800XL generates the playfield, player/missile graphics and
updates Player/Missile collision registers every 60th of a second.
To make Rainbow run at an acceptable speed, you can alter the frequency
with which this takes place.
With the lesser frame rates, collision registers are updated less frequently
and so occasionally your PacMan may pass through a ghost with no ill effect!
Increase the frame rate to avoid this.
Some games like Jumpman and Buried Bucks only work with the 'Every' frame rate
setting.
Disk drive
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Disk drive#1 is available to load single density images. Single density
images have 720 sectors at 128 bytes per sector ==> 92160 bytes in total.
ATR images have a 16 byte header, i.e. 92176 bytes.
Keyboard
--------
In addition to the standard keyboard, some other important keys are
System Reset = SHIFT * (on keypad)
Option = SHIFT 'num lock'
Select = SHIFT = (on keypad)
Start = SHIFT / (on keypad)
Help = - (on keypad, XL only)
Break = SHIFT + esc
Caps/Lowr = alt
Atari Logo = . (on keypad)
The Mac CAPS LOCK is not functional. A number of extra editing keys are included,
i.e. the cursor keys work and
Insert Char = ins/help
Delete Char = del
Clr screen = home / diag arrow pointing north-west.
Joystick
--------
Stick 0 (Player 1) is enabled. Use the keypad for this (UP=8;LEFT=4;RIGHT=6;
DOWN=5) and FIRE is Control or 0 on keypad.
This demo may be copied and freely circulated. However, all the files
must be included and they must not be modified in any way.