Roadmap and status of Gigatron TTL

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lb3361
Posts: 205
Joined: 17 Feb 2021, 23:07

Re: Roadmap and status of Gigatron TTL

Post by lb3361 »

Hans61 wrote: 20 Aug 2022, 04:25 In order to get more space in the ROM, Marcel certainly had the idea in ROM 6 with:
Pucrunch (well documented) or eximozer 3.0.2 (better compression)
All these decompressors read the bitstream bit-by-bit and therefore need to perform a lot of shifts which can be challenging on the Gigatron. They also need a working memory buffer of at least 256 bytes, meaning that one of the few low pages has to be reserved for this purpose. One has to be a bit inventive to work around these limitations...
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