Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!tmsoft!mason From: mason@tmsoft.UUCP Newsgroups: comp.arch,comp.unix.wizards,comp.os.minix Subject: Re: pdp-11/55 Message-ID: <184@tmsoft.UUCP> Date: Sat, 10-Oct-87 22:47:16 EDT Article-I.D.: tmsoft.184 Posted: Sat Oct 10 22:47:16 1987 Date-Received: Mon, 12-Oct-87 07:23:55 EDT References: <1755@ncr-sd.SanDiego.NCR.COM> <275@usl> <29933@sun.uucp> <8740@utzoo.UUCP> Reply-To: mason@tmsoft.UUCP (Dave Mason) Followup-To: comp.arch Organization: TM Software Associates, Toronto Lines: 12 Xref: utgpu comp.arch:2412 comp.unix.wizards:4457 comp.os.minix:1766 In article <8740@utzoo.UUCP> henry@utzoo.UUCP (Henry Spencer) writes: >Choke cough. No. The 60 was grossly inferior to the 70 in most ways: >hardware address space, integer processing speed, I/O bandwidth, etc. The only interesting thing about the 11/60 is that it had (because of the (writable) microcode) many interesting (to some) instructions. Not having my PDP-11 Processor Handbooks right at hand (Where did I put them? They were here only 6 years ago) and never having programmed one, I'm not sure of all the instructions, but they included string and BCD operations (COBOL city, S/360 killers, etc.). I'm not sure any compilers ever produced code for the /60, as it was the only machine that had these instructions. ../Dave Mason