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Posted on January 11, 2023January 17, 2023

65816: Running C-based Code Outside Bank 0 on the 65816

In my last post I showed that you could run cc65 compiled C-based code on the 65816. The main limitation was that the C-based segments had to be located in Bank 0 (and of course that the standard C-library functions were running with 8-bit registers and none of the 65816 added instructions or address modes). …

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Posted on December 30, 2022January 9, 2023

65816: Running C-based Code on the 65816

I’ve been wondering for a while if I could run C-based code on the 65816 using the cc65 toolset. Browsing through the cc65 documentation and C libraries it’s pretty clear that the 65816 isn’t specifically supported. In fact, the C libraries are primarily targeted towards the 6502 with just modest support for the 65C02. The …

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