billa@ihlpl.ATT.COM (Anderson) (10/13/87)
From ihnp4!ptsfa!lll-tis!lll-lcc!lll-winken!uunet!mnetor!utzoo!utgpu!tmsoft!mason Sat Oct 10 21:47:16 1987 Path: ihlpl!ihnp4!ptsfa!lll-tis!lll-lcc!lll-winken!uunet!mnetor!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: 11 Oct 87 02:47:16 GMT 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: 11 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 So does this guy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!