I actually wrote an RPL compiler for UniVerse - I guess that was about 15 years ago. It actually started out quite nice.. it did everything in the RPL81 manual and was a tidy piece of C on SunOS.
Then I delved into the 'undocumented' functions .. and by the time I had handled as many of those as I could the poor compiler was completely unrecognizable and unmaintainable. Not soon after, my colleagues banned me from writing C/UNIX. Ever Again. I particularly liked the way you could arbitrarily kill entries from the return stack and jump into another routine bypassing 'n' statements. Using X for multiplication and for the exit command was nice too as was the fact that literals didn't need to be quoted. I do like reverse polish math.. it keeps you on your toes. Though the Microdata chaps missed a trick by not emulating the extended input statement and keytrapping when they did PROC. Brian -----Original Message----- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of fft2...@aol.com Sent: 08 February 2011 17:06 To: u2-users@listserver.u2ug.org Subject: Re: [U2] RPL was Pick History et al In a message dated 2/8/2011 6:02:44 AM Pacific Standard Time, charles_shaf...@ntn-bower.com writes: > In the late 80s I worked with Ultimate Pick on a VAX, running software > from SMI. That system used RPL as its native programming language. This > was the Ultimate PICK that ran on an add-in board. > You are the first person I've encountered who ran Pick on top of VMS on the VAX. I am the only person I've met who run it on the MicroVAX. I added that to my article here http://knol.google.com/k/will-johnson/the-ultimate-corp-aka-ultimate-compute r/4hmquk6fx4gu/703#view _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
