... to its broad hardware and software support. However, it is a card system which requires surface mount soldering and CPLD programming. One EuroCard 6502GPD skips the most awkward steps, is faster, cheaper, more compact and four serial ROM sockets is a highly desirable feature. 6502GPD definitely ...

... favorites are:


Eris due to its hardware design, filing system and application support. In particular, the ABI across all applications can be modified by only changing macros.
6502GPD which has most influenced my hardware design.
Planck due to its extensive application and peripheral support.

... detail.

My now third favorite is jfoucher's Planck design which has a good compliment of software. I prefer the schematic and board design of 6502GPD . I love its symmetrical serial EEPROMs and the 32KB page banking ($1000-$8FFF) is bold and original. However, both are inferior to the ...

... discarded all parallel buses but not the 3*16KB bank switching . I was decreasingly influenced by jfoucher's Planck and increasingly influenced by 6502GPD from Thu 24 Dec 2020 which has banking at $1000-$8FFF and incoporates sockets for 4 serial EEPROMs . After a particularly long ramble around the ...

... decompressor and cache allows binaries to exceed 64KB while minimizing decompression overhead . The four serial ROM sockets are copied from 6502GPD , although, in limited space, I failed to copy the beautiful, physical symmetry of this design. Nor did I follow horizontal/vertical discipline ...

... 100mm backplane Planck and RC6502 . If a board is held diagonally, the box is large enough for a 160*100mm EuroCard and is therefore suitable for 6502GPD , jfoucher's single board Planck and BigDumbDinosaur's POC 2.0 . It is also suitable for Acorn second processors which don't fit into smaller ...