9 Dec
2016
9 Dec
'16
3:46 p.m.
Bill said that Paul said:
On Fri, Dec 9, 2016 at 1:40 PM, Paul Koning
<paulkoning at comcast.net> wrote:
Paul,
You're right, the brochure says only through the /75, my error. I fixed
the page.
I should have written programs written for the Model 44 will be compatible
with the System/360 Model 30 through 91, provided the configurations are
comparable and the programs and not time dependent.
Bill
Thank you for the interesting brochure Bill, as far as I know the Model 44 was
a bit of an odd duck in having a modified instruction set.
I have something relevant of my own to contribute: My dad's 360 Reference Card
with his scribbled-on annotations for the Model 44 ie, 2044 CPU:
http://web.aanet.com.au/~malikoff/ibm/IBM_System_360_Reference_Card_with_Mo…
The annotations are on pages 1, 2, 5 and 6. I think at least one of the universities here
in Oz had a Model 44, I guess he had to service it, but mainly he was a Model 40 CE.
Steve.
On Dec 9, 2016, at 1:22 PM, william degnan
<billdegnan at gmail.com> wrote:
IBM System/360 Model 44 Pamphlet from Nov 1968
http://www.vintagecomputer.net/browse_thread.cfm?id=659
Nice. The caption is odd; it claims that "... instruction set was
compatible with the /30 through /91 models" when the pamphlet itself makes
it quite clear that this is not so (no SS instructions).
It's curious that the emulation feature, which adds software emulation of
those instructions, isn't mentioned, and in fact I haven't seen it
mentioned anywhere.
paul