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IBM System/360 Principles of Operation (1964) [pdf]

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Re: IBM System/360 Principles of Operation (1964) [pdf]

#31

Post by dbcurtis »

cptnapalm wrote: post #26
dbcurtis wrote: post #20

I did a tour of duty as a CPU logic designer at Amdahl. The POO was my bible, although it was the 370 version in those days. The thing to remember about ISA specs like this is that they are works of fiction. The contract goes: “If you programmers are willing to pretend this is how the machines work, we will build a machine that pretends to work that way.” That concept is the key innovation of the 360 system architect…

By pure random luck and if you know, has Amdahl's UTS survived anywhere? Mainframe software seems to simply disappear into the void after its useful life is over.

Sorry, I have no idea.

Re: IBM System/360 Principles of Operation (1964) [pdf]

#32

Post by cptnapalm »

lboc wrote: post #30
cptnapalm wrote: post #28

Earlier quoted context omitted.

I'm trying to get my Multiprise 3000 up and running. Is there something like this for S/390?

Search that Redbooks site for 'abcs of systems programming'. There's a 5-volume set from 2000 that covers S/390 and OS/390. Also check out the OS/390 ADCD Redbook: https://www.redbooks.ibm.com/redbooks/pdfs/sg246204.pdf Which I found pretty helpful for finding my way around. (I see from the cover that it includes MP3000 info!) Edit: Have you seen this? (I think this guy hangs out on HN) ftp://ps-2.kev009.com/incoming…

He does. He's been a great help as I try to piece together enough stuff to function as a system element. And thank you for that redbook link; I have a load of stuff, but somehow missed that one. Thanks!

Re: IBM System/360 Principles of Operation (1964) [pdf]

#33

Post by cptnapalm »

dbcurtis wrote: post #31
cptnapalm wrote: post #26

Earlier quoted context omitted.

By pure random luck and if you know, has Amdahl's UTS survived anywhere? Mainframe software seems to simply disappear into the void after its useful life is over.

Sorry, I have no idea.

Had to ask. It's disheartening how much stuff that was so important to a lot of people just disappears.

Re: IBM System/360 Principles of Operation (1964) [pdf]

#34

Post by rbanffy »

cptnapalm wrote: post #32
lboc wrote: post #30

Earlier quoted context omitted.

Search that Redbooks site for 'abcs of systems programming'. There's a 5-volume set from 2000 that covers S/390 and OS/390. Also check out the OS/390 ADCD Redbook: https://www.redbooks.ibm.com/redbooks/pdfs/sg246204.pdf Which I found pretty helpful for finding my way around. (I see from the cover that it includes MP3000 info!) Edit: Have you seen this? (I think this guy hangs out on HN) ftp://ps-2.kev009.com/incoming…

He does. He's been a great help as I try to piece together enough stuff to function as a system element. And thank you for that redbook link; I have a load of stuff, but somehow missed that one. Thanks!

Can Hercules run MP3000?

Re: IBM System/360 Principles of Operation (1964) [pdf]

#35

Post by cptnapalm »

rbanffy wrote: post #34
cptnapalm wrote: post #32

Earlier quoted context omitted.

He does. He's been a great help as I try to piece together enough stuff to function as a system element. And thank you for that redbook link; I have a load of stuff, but somehow missed that one. Thanks!

Can Hercules run MP3000?

The MP3000 (Multiprise 3000) is the smallest mainframe IBM ever made, weighing in at only about 300 lbs. Using the vanilla Hercules, it can be MIPS limited to act mostly like a MP3000 System/390 machine and run the same OSes.

Re: IBM System/360 Principles of Operation (1964) [pdf]

#36

Post by BXLE_1-1-BitIs1 »

RickJWagner wrote: post #23

I remember reading a similar document for my shop's IBM 4381. When I started mainframe programming, I was given a pocket-sized 'yellow card' that listed all the machine instructions and arguments. It was invaluable for dump-reading. My co-workers (who were all older when I started) had similar cards, except in different colors. There were white, pink and green cards, too. You could tell when somebody started programm…

The card is now a 116 page booklet aka Reference Summary
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