EclaireXL

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Atari 800XL core instructions

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Mark Watson

scrameta@gmail.com

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Cores available for DE1,MIST,MCC216 and Replay

These cores differ a little in use.

These instructions were for the MCC216.

Brief notes for other cores:

Replay: Copy atari800.bin and replay.ini to the root. No drive emulation yet, use the serial port with sio2pc software. Roms loaded from ini file.

DE1: SW9: sdram only/sram then sdram, SD8: PAL/NTSC. Roms in atari800/rom and atari800/user. NB: RS232/GPIO SIO not connected yet

MIST: Roms in atari800/rom and atari800/user. New firmware (as of June 20th) needed.

MIST: Without keyboard its possible to use it! If you can remember these...

MIST: mist button0=F11, mist button0+fire=F12, mist button0+stick=reboot

MIST: mist button1=option, mist button1+fire=start, mist button1+stick=select

CHAMELEON: Roms in atari800/rom and atari800/user.

CHAMELEON: freeze button: toggle scanlines

CHAMELEON: CDTV remote: mouse:joy1,joy:joy2!,power:reboot,stop,reset,rew:start,play:select,ff:option,genlock:choose/boot(aka f11),cd/tv:settings(aka f12)

CHAMELEON: C64 keyboard matches Atari layout where possible:

CHAMELEON: (ESC)1234567890<>(CAPS)(HELP)(DELETE)

CHAMELEON: (CONTROL)QWERTYUIOP-=(TAB)

CHAMELEON: (BREAK)(SHIFT LOCK)ASDFGHJKL;+*(RETURN)

CHAMELEON: (INV)(SHIFT)ZXCVBNM,./(SHIFT)(F11/disk and boot)(F12/settings)

CHAMELEON: F1/F2=START,F3/F4=SELECT,F5/F6=OPTION,F7/F8=RESET(F9),CONTROL+F7/F8=COLD START(F10)

MCC216: As below... Official releases will lag but be better tested. This is a beta.

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The keyboard is mapped to match an Atari 800XL physical layout(See below).

Special/console keys:

F5 - Help

F6 - Start

F7 - Select

F8 - Option

F9 - Reset

F10 - Cold start (clear base 64KB RAM and reset)

F11 - Select drive 1 and cold start

Use joystick to make selection in menu

Left - up several lines

Right - down several lines

Up - up 1 line

Down - down 1 line

Fire - select

Remember many titles require holding 'option'

Select "DIR .." to go up a directory

Select "DIR xxx" to go down a directory

F12 - System settings menu

Use joystick to make selection

Turbo - system speed

Left/right to select

1x (default): is very compatible - speed closely matches original hardware ~1.7MHz

2x: ~3.4MHz - less compatible

4x: ~6.8MHz - less compatible

8x/16x: 13MHz, 27MHZ - limited by SDRAM latency, not quicker than 4x yet.

RAM

Left/right to select

64KB: like 65XE

128KB: like 130XE, 64KB ext ram, switchable by antic/cpu

320KB(Compy shop)(default): 256KB ext ram, switchable by antic/cpu

320KB(Rambo): 256KB ext ram, both antic/cpu switch together

576KB(Compy shop): 512KB ext ram, switchable by antic/cpu

576KB(Rambo): 512KB ext ram, both antic/cpu switch together

1088KB: 1024KB ext ram, both antic/cpu switch together

4160KB: - very imcompatible!

ROM

Right/fire: File selector

Select a different system OS ROM - can by 16KB or 10KB

Drive

Left: Remove disk

Right: File selector

Fire: Put this disk in F1

Cartridge 8K simple

Fire: select file

This allows a ROM to be loaded in the place of BASIC

Some simple ROM cartridges can be used

This is temporary until proper cartridge support is implemented

System ROM:

Loaded from /System/rom/atari800/atarixl.rom

Basic:

Loaded from /System/rom/atari800/ataribas.rom

Disk images:

Default dir: /atari800/user

Supported types:

.ATR - Atari disk image with header. single/medium/double density.

.XFD - Atari disk image without header.

.XEX - Atari executable. A simple bootloader is loaded, not 100% compatible.

Important notes:

When running Atari software a lot of programs need to have basic disable. Hold option when pressing reset.

Keyboard layout

The keyboard is mapped to match an Atari 800XL physical layout. On a UK keyboard this means the layout is:

Directly mapped:

ESCAPE,F1-F4,BREAK,CONTROL,SHIFT

By position:

1234567890<>(DELETE)

(TAB)QWERTYUIOP-=(RETURN)

(CAPS)ASDFGHJKL;+*

ZXCVBNM,./

Other:

Right alt = inverse video

Features

* Acid 800 test pass

* 99% of software runs

* Version for PAL/NTSC VGA/SVIDEO

* Write support

* Drive emulation

Known issues

* ~1% of programs fail

* Keyboard layout board on UK PS2 keyboard, no remapping possible yet.

* Copymate write verify fails

* Entering menu during disk access may hang ZPU (used for drive emulation/menus)

* Sometimes keyboard input fails - need to power off/on the MCC.

* Hardware matches Atari very closely - including overscan corruption - this often shows up on VGA monitors.

Enjoy !