From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10f6aa,76b1fcc14e8dced X-Google-Attributes: gid10f6aa,public X-Google-Thread: 114917,76b1fcc14e8dced X-Google-Attributes: gid114917,public X-Google-Thread: 109fba,76b1fcc14e8dced X-Google-Attributes: gid109fba,public X-Google-Thread: 103376,c9c309a1859318a1 X-Google-Attributes: gid103376,public X-Google-Thread: 1014db,8b6c45fbebd7d3b7 X-Google-Attributes: gid1014db,public From: mwood@indyvax.iupui.edu (Mark H. Wood) Subject: Re: HELP ! need to insert value in array !! Date: 1997/07/07 Message-ID: <1997Jul7.091353.28784@indyvax.iupui.edu>#1/1 X-Deja-AN: 255318072 References: <33A9C27C.22F7@post4.tele.dk> <5oci49$97g@crl.crl.com> Newsgroups: comp.lang.c,comp.lang.c++,comp.os.msdos.programmer,comp.lang.asm.x86,comp.lang.ada Date: 1997-07-07T00:00:00+00:00 List-Id: In article , dewar@merv.cs.nyu.edu (Robert Dewar) writes: > iRichard O'Keefe said > > < > I think that is wrong, there were hardware instructions on the PDP10 that > used this format, I am pretty sure of this, but it is a while ago ... Nope. Byte operations on the PDP10 architecture all go through a "byte pointer" object that can deal with any contiguous collection of 1 to 36 bits that doesn't cross a 36-bit word boundary. It's the OS that had a predisposition for five 7-bit ASCII bytes per word, in string operations. Serial I/O hardware had to deal with other realities, but most of it was slotted into PDP11 frontend processors so it sat behind translation software anyway. Interfacing 36-bit hardware with 16-bit hardware made for some interesting programming (and interesting hardware!), to say the least. -- Mark H. Wood, Lead Systems Programmer +1 317 274 0749 [@disclaimer@] MWOOD@INDYVAX.IUPUI.EDU Finger for more information. Thank goodness we've left behind the bad old days, before computers were transformed from reliable business machines into performance art.