I got a response from Philipp Klaus Krause, maintainer of SDCC: "I guess there was a misunderstanding. SDCC can now assign struct and union, but it still can't pass and return them.
I think passing and returning struct and union will be supported in 4.3.0 (some SDCC developers want to look into implementing it this summer)." So, probably after version 4.3 we could use SDCC to compile NuttX again. BR, Alan On 1/15/22, Gregory Nutt <spudan...@gmail.com> wrote: > I suppose that if someone really wants to use z80, they would need to hunt > down a better compiler. > > > When we removed those SDCC hacks from the code, we were under the belief > that SDCC had corrected that problem. But obviously not. > > > I would not recommend restoring them. They are too invasive and force > breakage of the POSIX interface. > > > z80 itself, I suspect is not important because I doubt it is usable because > of the 64Kb address space. But other z80 family members and derivatives > could be used because they support an MMU. >
