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1. www.virtualdub.org › downloads › Altirra HardwareAltirra Hardware Reference Manual - VirtualDub

   www.virtualdub.org › downloads › Altirra Hardware

   1.1 Introduction. This document describes the hardware programming model used by Altirra, an emulator for the Atari 8-bit series

   • File Size: 1MB

   • Page Count: 430

2. forums.atariage.com › topic › 308053-altirra-390Altirra 3.90 released - Atari 8-Bit Computers - AtariAge Forums

   forums.atariage.com › topic › 308053-altirra-390

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   Jun 15, 2020 · The new minimum operating system requirement is Windows 7 SP1. End of support for DirectDraw, which has not been native since Vista, and OpenGL, of which only old versions were used anyway (and was not enabled by default). New features and fixes:

3. seriouscomputerist.atariverse.com › media › pdfAltirra Hardware Reference Manual

   seriouscomputerist.atariverse.com › media › pdf

   Oct 9, 2023 · Altirra Hardware Reference Manual ... the

4. forums.atariage.com › topic › 191475-altirraAltirra Hardware Ref Guide - Atari 8-Bit Computers - AtariAge ...

   forums.atariage.com › topic › 191475-altirra

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   Dec 15, 2011 · I've been working on a revised edition of this doc -- current draft is attached. I've added a bunch of PIA interrupt and serial port timing info and also started on more peripheral information. I have some XEGS and 1030 modem info that hasn't been integrated yet, and the disk drive info is currently incomplete.

5. www.scribd.com › document › 641975678Altirra Hardware Reference Manual | PDF - Scribd

   www.scribd.com › document › 641975678

   Altirra Hardware Reference Manual - Free ebook download as PDF File (.pdf), Text File (.txt) or read book online for free.

6. www.emulation64.com › files › infoAltirra | The Emulation64 Network

   www.emulation64.com › files › info

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   Requirements * Windows 2000, XP, Vista, 7, 8 or later (either 32-bit or x64 edition). * Pentium CPU or better (1GHz or faster recommended). Additional info Altirra is designed with emulation quality in mind, sometimes over speed and polish. It's designed as a system emulator and debugger instead of a games machine, so there is some setup involved.

7. People also ask

   What hardware model does altirra use?

   • While the information in this document is presumed correct, no guarantee is provided as to its accuracy or fitness for a particular use. This document describes the hardware programming model used by Altirra, an emulator for the Atari 8-bit series of home computers, including the 400, 800, 600XL, 800XL, 1200XL, 130XE, and XEGS models.

   Altirra Hardware Reference Manual - VirtualDub

   www.virtualdub.org/downloads/Altirra Hardware Reference Manual.pdf

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   When do I need to update altirra?

   • On 6/16/2020 at 3:39 PM, Yautja said: You need to update the ver. from 3.26 to 3.90 in the initial screen; and also the copyright year to 2020. Those are the version number and copyright dates for the Altirra written-from-scratch OS, not the emulator itself.

   Altirra 3.90 released - Atari 8-Bit Computers - AtariAge Forums

   forums.atariage.com/topic/308053-altirra-390-released/

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   What's new in altirra?

   • New features and fixes: Palette solver: Matching color palettes in Altirra has been a long-standing issue, since it is unable to take .pal/.act files due to needing the generation parameters for the palette rather than the final colors for various features, and matching colors from real hardware is a difficult task.

   Altirra 3.90 released - Atari 8-Bit Computers - AtariAge Forums

   forums.atariage.com/topic/308053-altirra-390-released/

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   Why does altirra write to a register before or after a deadline?

   • Altirra also uses this convention in its debugger. Sometimes it is necessary for the CPU to write to a hardware register before or after a particular deadline to produce a desired behavior. For purposes here, A CPU write to a register on cycle N satisfies a requirement to write by cycle N, before cycle N+1, and after cycle N-1.

   Altirra Hardware Reference Manual - VirtualDub

   www.virtualdub.org/downloads/Altirra Hardware Reference Manual.pdf

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   What's new in Atari BASIC?

   • First released version of Atari BASIC. Updated version of Atari BASIC commonly included as internal BASIC in many 600/800XL machines. Fixes a number of issues in revision A, and adds a notorious new issue that gradually bloats programs over time.

   Altirra Hardware Reference Manual - VirtualDub

   www.virtualdub.org/downloads/Altirra Hardware Reference Manual.pdf

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   What Pia port does the Atari 2600 VCS use?

   • The Atari 8-bit computer series uses the same digital joystick used by the 2600 VCS. The direction sensors are connected to four contiguous bits on the PIA. Ports 1 and 2 use port A, whereas ports 3 and 4 on the 400/800 use port B:

   Altirra Hardware Reference Manual - VirtualDub

   www.virtualdub.org/downloads/Altirra Hardware Reference Manual.pdf

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8. ftp.pigwa.net › stuff › emulators_and_utilsAltirra Hardware Reference Manual - pigwa.net

   ftp.pigwa.net › stuff › emulators_and_utils

   Altirra Hardware Reference Manual Created by Avery Lee 1.1 Introduction This document describes the hardware programming model used by Altirra, an emulator for the Atari 8-bit series of home computers, including the 400, 800, 600XL, 800XL, 1200XL, 130XE, and XEGS models. Although the