Apple-1-HW/apple1cartridge
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![apple1cartridge](/apple1cartridge.jpg)
# apple1cartridge # apple1cartridge
This repository contains firmware files for the "Apple-1 RAM/ROM Cartridge" expansion card for the Apple-1 computer. This repository contains firmware files for the "Apple-1 RAM/ROM Cartridge" expansion card for the Apple-1 computer.
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## Description ## Description
This project aims to provide Apple-1 users with a quick way to expand RAM capacity in their systems up to 52 KB and to simultaneously store some Apple-1 programs in This project aims to provide Apple-1 users with a quick way to expand RAM capacity in their systems up to 52 KB and to simultaneously store some Apple-1 programs in
~30KB of on-board ROM, which can be banked in and out via software. The on-board ROM also contains a loader program which is capable of loading programs which span across non-continuous memory locations. ~30KB of on-board ROM, which can be banked in and out via software. The on-board ROM also contains a loader program which is capable of loading programs spanning across noncontinuous memory locations.
The A1C expansion card allows via the physical switch to completely disable the ROM/loader program functionality which takes up to the 2 KB of memory (`$4000-$47FF`) The A1C expansion card allows via the physical switch to completely disable the ROM/loader program functionality which takes up to the 2 KB of memory (`$4000-$47FF`)
and to provide continuous 44KB wide RAM address space instead. and to provide continuous 44KB wide RAM address space instead.

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