Bryce apparently never got around to work on this again, so I'll have another try now ...
During Google Summer of Code 2011, Bryce Lanham added the possibility to emulate the NeXTcube machine in QEMU, e.g. see this URL for some details: https://wiki.qemu.org/Google_Summer_of_Code_2011#NeXT_machines_system_emulation But since the machine requires a 68040 CPU and this was not included in upstream QEMU in 2011 yet, the patches have never been merged to upstream. Then, during the last years, Laurent completed the full 680x0 support in upstream QEMU, so we could finally merge the NeXTcube support, too. The QEMU interfaces changed a lot since 2011, so I had to modify the sources quite a bit, but with the attached patches, it is now possible to boot up to the firmware monitor again. Note that boot device emulation is either still missing (network and SCSI), so you can not boot any operating systems with this machine yet. I have the patches for these devices in my brach here: https://gitlab.com/huth/qemu/commits/next-cube ... but they are not quite working yet, so I'll submit them later once they have been fixed and the basic support patches of this series have been merged. v2: - Don't use memory_region_allocate_system_memory() for the framebuffer device anymore - Turn the keyboard device into a proper QOM device - Put the global variables in the third patch into the machine state structure - Got rid of the "//" C++ comments Thomas Huth (4): m68k: Add NeXTcube framebuffer device emulation m68k: Add NeXTcube keyboard device m68k: Add NeXTcube machine m68k: Add an entry for the NeXTcube machine to the MAINTAINERS file MAINTAINERS | 7 + default-configs/m68k-softmmu.mak | 1 + hw/display/Makefile.objs | 1 + hw/display/next-fb.c | 157 +++++ hw/m68k/Kconfig | 4 + hw/m68k/Makefile.objs | 1 + hw/m68k/next-cube.c | 988 +++++++++++++++++++++++++++++++ hw/m68k/next-kbd.c | 320 ++++++++++ include/hw/m68k/next-cube.h | 49 ++ 9 files changed, 1528 insertions(+) create mode 100644 hw/display/next-fb.c create mode 100644 hw/m68k/next-cube.c create mode 100644 hw/m68k/next-kbd.c create mode 100644 include/hw/m68k/next-cube.h -- 2.21.0
