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72 lines
2.8 KiB
Plaintext
72 lines
2.8 KiB
Plaintext
May 2008
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Hi all Atari users,
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this is the Atari 8-bit computer emulator for Atari TT/Falcon range of computers.
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It should run on any computer with 68030 or higher CPU and a graphics
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capable of resolution 320x240 (or higher) in 256 colors.
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Atari800 contains special routines for direct VIDEL programming (for achieving
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336x240 resolution on VGA monitors) and also dedicated NOVA graphics (ISA ATI
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Mach64) support.
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Atari800 had originally been developed by David Firth though it's been
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a community project for more than 10 years already.
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The Falcon port was initially done by me and I still try to keep it updated.
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Empty Head (= Karel Rous) and Gerhard Janka wrote the 65C02 emulation
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in pure MC68030 assembler. Douglas Little's assembler routines for VIDEL
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and IKBD from his game/demo Bad Mood (a DOOM clone) were used for achieving
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maximum possible speed and compatibility.
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ATARI800.TTP - atari800 (full C source, GNU C -m68020-60 -O3)
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ATARICPU.TTP - atari800 (cpu.c rewritten in optimized MC68030 asm)
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The following script might be used for rebuilding the fastest possible
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version:
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============================== make.sh ====================================
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#!/bin/sh
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CFLAGS="-m68020-60 -O3 -fomit-frame-pointer -Wall" ./configure --disable-newcycleexact --without-sound --enable-veryslow --disable-monitorbreak --target=falcon
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make clean
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time make
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fixstk 256k atari800
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===========================================================================
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Keyboard emulation works just like in other Atari800 flavors:
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F1 = Configuration menu
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F2 = Option key
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F3 = Select key
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F4 = Start key
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F5 = Reset key (warm start)
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Shift+F5 = Switch Atari off and on (cold start)
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F6 = Help key
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F7 = Break key
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F8 = Invoke monitor
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F9 = Exit emulator
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F10 = Save screenshot
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Shift+F10 = Save interlaced screenshot
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Help = Help key
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Joystick emulation works fine. Both real joysticks (CX-40 type) can be
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connected.
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Several special command line parameters were introduced in this Falcon port:
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-interlace <number> the <number> is a number of skipped Falcon screens.
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Normally the Falcon screen is updated every time
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when it's build, i.e. <number> is 0 by default. Higher
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<number> should cause faster emulation (because of
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less time spent by updating slow Falcon screen).
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-joyswap swap Joysticks
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-videl on Falcon use direct VIDEL programing (allows you
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to switch res on-the-fly and achieve special 336x240
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resolution on VGA)
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-double double the screen size on NOVA cards
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For bugreports of Falcon port please write to me (Petr Stehlik)
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e-mail pstehlik@sophics.cz
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WWW http://atari800.sourceforge.net/
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