On Sun, Jun 25, 2017 at 5:50 PM, Bill Cunningham <bill...@suddenlink.net> wrote: > I am reading a bit about the machine the PDP-8. 4K fortran I guess was > used,
That was one option, yes. > there were 8 "registers" if that's right. Not sure where this is coming from... There's the 12-bit Accumulator and its associated LINK (carry) bit. Some models always have a 12-bit MQ (Multiplier Quotient) register, some get an MQ when the EAE is installed, and some never get it. There's a 12-bit Program Counter, and two extended field registers, either 1-bit, 2-bit (PDP-8/L) or 3-bit (many other models) if the memory extension hardware is installed (required to have over 4K) > And 12 bit words. Yes. > As far as languages here, is Macro-8 assembly language? Look for assemblers called PAL (PAL III and PAL8) and MACREL (though MACREL was a late addition) > Is there an assembler available for PDP-8? OS/8 preferrably but tss-8 or > anything would do? Plenty of assembler possibilities with OS/8. I have no experience with TSS-8. http://www.computinghistory.org.uk/det/8391/PDP8-PALAssembly-Language/ -ethan _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh