https://wiki.gametank.zone/ 2026-04-27T13:15:33+00:00 https://wiki.gametank.zone/ https://wiki.gametank.zone/lib/exe/fetch.php?media=wiki:logo.png text/html 2025-04-08T15:53:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=hardware:audio&rev=1744127617&do=diff Audio CoProcessor The GameTank's audio system, referred to as the Audio Coprocessor or ACP, is a 65C02-based subcomputer that computes PCM samples and outputs them to a digital-to-analog-converter. The ACP consists of a 65C02 processor, a 4K dual-ported RAM that is shared with the main system's memory map, a programmable timer that triggers the 65C02's IRQ at regular intervals, an 8-bit DAC, and a buffer register. text/html 2024-09-06T19:13:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=hardware:blitter&rev=1725650014&do=diff Blitter The Blitter is an arrangment of logic gates, registers, and counters that may be used to copy rectangular areas up to 127×127 pixels from Sprite RAM to the framebuffer. This copy runs in parallel to CPU execution and copies at a rate of 1 pixel per CPU clock cycle. If the DMA_IRQ flag is set, the Blitter will assert an IRQ signal when a copy operation completes. text/html 2025-11-16T03:25:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=hardware:flashcarts&rev=1763263538&do=diff Flash Cartridges Cartridges connect to the GameTank's 36 pin cartridge port. Pinout 1. +5V 19. A132. VIA PA2 20. _WRITE 3. VIA PA7 21. _IRQ 4. VIA PA1 22. A8 5. VIA PA0 23. A9 6. A12 24. A11 7. A7 25. _READ 8. A6 26. A10 9. A5 27. _SEL 10. A4 text/html 2025-09-20T02:38:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=hardware:gamepads&rev=1758335896&do=diff Gamepad Ports The front gamepad ports can be read at $2008 and $2009. Writing to these addresses will not do anything. A byte read from one of these locations will return 6 binary button states from the respective controller. Consecutive reads to the same port will toggle the “select” line on the controller port, causing the controller to change which six button states are being returned. More on reading gamepads can be found in its own article. text/html 2025-03-12T17:19:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=hardware:memorymap&rev=1741799968&do=diff Memory Map Addr Use $0000 - $1FFF General purpose RAM $2000-$2007 System control registers $2008 - $2009 Gamepads