[Default] On 15 Jun 2017 14:41:50 -0700, in bit.listserv.ibm-main jesse1.robin...@sce.com (Jesse 1 Robinson) wrote:
>I guess I could use a bit of (gentle) education. S/360 was the first >architecture I learned, so little-endian seems pretty natural. My occasional >forays into big-endian mystified me (still) as to why it would be preferable >to interpret an address from right to left, including literal street >addresses. I don't read decimal numbers that way. Why is it any more sensible >for binary (hex)? Or am I misremembering my hazy knowledge of big-endian? > S360 was big-endian. z series are predominantly big-endian with little-endian capabilities. DEC and Intel can be blamed for little-endian. Clark Morris >. >. >J.O.Skip Robinson >Southern California Edison Company >Electric Dragon Team Paddler >SHARE MVS Program Co-Manager >323-715-0595 Mobile >626-543-6132 Office ?=== NEW >robin...@sce.com > > >-----Original Message----- >From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On >Behalf Of Clark Morris >Sent: Thursday, June 15, 2017 2:19 PM >To: IBM-MAIN@LISTSERV.UA.EDU >Subject: (External):Re: RFE? xlc compile option for C integers to be "Intel >compat" or Little-Endian > >[Default] On 14 Jun 2017 14:57:21 -0700, in bit.listserv.ibm-main >frank.swarbr...@outlook.com (Frank Swarbrick) wrote: > >>I won't try to justify EBCDIC, but big-endian rules! :-) >> >Unfortunately, little-endian which comes from the same warped thinking that >went into the COND JCL statement seems to be ubiquitous. >Little-endian is illogical and a royal pain in so many ways. The developers >of it should be ashamed of themselves. > >Clark Morris > >>________________________________ >>From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on >>behalf of Paul Gilmartin >><0000000433f07816-dmarc-requ...@listserv.ua.edu> >>Sent: Wednesday, June 14, 2017 3:44 PM >>To: IBM-MAIN@LISTSERV.UA.EDU >>Subject: Re: RFE? xlc compile option for C integers to be "Intel >>compat" or Little-Endian >> >>On Wed, 14 Jun 2017 20:29:22 +0000, Frank Swarbrick wrote: >> >>>There are big-endian machines other than z. Shouldn't you investigate how >>>the issue is dealt with outside of z before asking for z exclusive language >>>extensions? >>> >>Yes. But big-endian is a vanishing breed. Motorola 68K is gone; >>PowerPC is mostly gone, and its endianness was selectable. There's >>little interest in Sparc. Others? >> >>Dismayinglly, big-endian may come to be perceived as the same sort of >>lunatic fringe as EBCDIC, and support will evaporate with the scarcity >>of testing platforms. But the EBCDIC nightmare can be avoided: Linux >>runs fine on z hardware. >> >>-- gil > > >---------------------------------------------------------------------- >For IBM-MAIN subscribe / signoff / archive access instructions, >send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
