I am wondering if it would be feasible to run NitrOS-9 on other 6809 platforms? in particular I have a Percom SBC/9 in SWTPC SS-50 based system. I tried bringing the system up after 20+ years of sitting idle and found that none of the floppies were viable, so I am thinking of either converting it to Flex/9 or NitrOS-9. The system would have to run in 48k Ram, 13k EPROM and a serial link to a host pc.
Thanks, for you thoughts.
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Yes, it should be possible to run Level 1 on such a system. You will need to port I/O routines of course. And your system needs to provide a periodic (e.g. 50 Hz) IRQ for the scheduling. 48 KB should not be too much of a handicap vs 64 KB since you can stuff the more permanent modules (kernel etc) into the EPROM. The current rominfo.asm and boot_rom.asm code copies everything from ROM into lower RAM before the system goes all-RAM and then relocates the bootfile again, but this should be relatively easy to tweak.
I kind of expect the N8VEM group to look at porting NitrOS-9 to their new 6809 SBC some time soon (but they may also target Level 2 since they have a MMU). I have also been contacted by individuals interested in ported it to their homebrew systems.
So getting started with this I thought I'd just build as directed.
the make for level1/coco1/cmds has a problem for me.
I did not see anything obvious so I thought I'd ask.
make: *** No rule to make target asm', needed byall'. Stop.
asm', needed by
There must be a problem with your build environment. Running "make -n -d -r" might give some clue. Other than that please provide more information about what you did prior to typing "make".
1) set http_proxy so I can get to http://hg.code.sf.net/p/nitros9/code
2) cloned http://hg.code.sf.net/p/nitros9/code
3) cd into the cloned dir.
4) set path to include lwtools and toolshed
5) set NITROS9DIR the the full path to the current dir
6) make dsk
what I noticed looking at things is that make file in level1\coco1\cmds the 'all' target refers to a list of utility commands (asm etc.) but the sources appear to be in level1\cmds i am amusing that the vpath directive "vpath %.asm $(LEVEL1)/cmds:$(NITROS9DIR)/3rdparty/packages/basic09" in the make file takes care of this
so am thinking that the version MinGW make that I have is older and may not support this.
make -v reports "GNU Make 3.81"
It seems like this is a bug in GNU Make 3.81 on Windows. Try setting NITROS9DIR using "/c/something" instead of "C:\something". Or upgrade Make :)
That was it.
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