Hi Greg & Kenneth, As far as I'm aware the only C compilers around for the (e)Z80 are still ZDSII, SDCC, and LLVM patched for the TI 84+ calculator, all with drawbacks: ZDSII is C89, SDCC doesn't support the eZ80 in 24-bit mode, and the LLVM patch only produces binaries loadable on the calculator. I did have a further patch for LLVM to produce ELF objects, as GNU binutils fully supports the eZ80, but I haven't kept that up to date with changes to either llvm or the TI 84+ patches to llvm.
(I still use an llvm 13.0.0 patched both for eZ80 for TI 84+, and further to produce ELF objects, myself). -- bje On Sat, May 4, 2024 at 5:23 AM Kenneth Pettit <petti...@gmail.com> wrote: > Hi Greg, > > I don't actually use the Z80 so cannot recommend a toolchain for it. I > could ask on the Tiny Tapeout discord channel though. > > Ken > > On 5/3/24 7:45 AM, Gregory Nutt wrote: > > On 5/3/2024 8:31 AM, Kenneth Pettit wrote: > >> > >> There is an effort to make a Z80 replacement chip: > >> > >> https://app.tinytapeout.com/projects/668 > >> > >> This is just a start since there are limited I/O pins on Tiny > >> Tapeout, but I think the plan might be to eventually put it on an MPW > >> to have a fully functional Z80 replacement (maybe). > >> > >> In the meantime, Digikey and Mouser seems to have thousands in stock, > >> so get them while they are still available! :) > > > > Z80 is a lot of fun to play with. Unfortunately, there is no Z80 > > toolchain supported by NuttX so it is not usable. The 64KiB address > > may be a problem now too. The Z180 is also supported but currently > > has no toolchain (it used SDCC too). > > > > The main problem with SDCC is that cannot support passing unions or > > structures as parameters or as return values. POSIX depends on this. > > > > Almost all of the ZiLOG parts are no longer usable. None of those > > that depend solely on ZiLOGs ZDS II toolchain will build (z8, > > zNEO/z16). The ez80 also uses the ZDSII toolchain but there is > > alternative beta GCC support for the ez80. > > > > The main problems with ZSDS II is that it is C89 and very buggy. > > > > Ken, if we were to invest in revitalizing the parts what toolchain > > would you recommend? > > >
