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22 lines
1.2 KiB
Markdown
22 lines
1.2 KiB
Markdown
# **A7800 - the Atari 7800 Emulator** #
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What is A7800?
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A7800 is a fork of the MAME Atari 7800 driver, with several enhancements added.
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* Support for emulation of Proline Joysticks, VCS Joysticks, Lightguns, Paddles, Driving Controllers, Keypads, Trak-Balls, Amiga Mice, and ST Mice.
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* Maria DMA timing has been improved further, with the addition of accurate DMA hole penalties.
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* A bug in the existing RIOT emulation has been fixed.
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* POKEY sound emulation improvements.
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* SALLY (CPU) and MARIA (Graphics chip) performance adjustments.
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* Selectable and improved palettes with enhanced screen options.
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* Audio indication of no ROM loaded silenced.
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* BIOS file(s) no longer required and made optional.
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* Streamlined UI including menu options to have an Atari 7800 system focus.
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* Implementation of XM control registers updated.
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* Graphical register updates made mid-scanline are now displayed mid-scanline.
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* Bankset bankswitching support added.
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* POKEY@800 added for non-banked, supergame, and bankset formats.
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* Machine targets a7800dev and a7800pdev added, which display DMA usage per-scanline.
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MAME compatibility and syntax has been maintained, to allow for the reuse of MAME configuration files and front-ends.
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