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Forum: Hardware Topic: Belated Christmas present |
| BigEd |
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Posted: Fri Jan 07, 2022 8:37 am
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Replies: 32
Views: 3848
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| ... are four parallel traces which need to jog inboard as they go left. In both cases, being restricted to right angles will use up a lot more room. (Inmos' CAS system used an octagonal system for routing in their transputer family chips, and it was great to use!) |
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Forum: General Discussions Topic: "mos6502" posts for October, November, and December 2018 |
| BigEd |
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Posted: Fri Nov 02, 2018 5:31 pm
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Replies: 4
Views: 3466
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| ... 2018-10-26 - the 6502 used in chip design, inside the AED graphics terminals. Includes Atari and Inmos connections. https://web.archive.org/web/20190206182505if_/https://lh3.googleusercontent.com/proxy/6trfFliT-eHb__03W2xkHdsT4On9lsAwMGw2XAFYX9Cod1b-WDVRz0uQUU005Q7EHsL3Gw8sW6M-Dv-FhaMwgiunoxy2evKdVtaKQjpU19KmKM9WzL6Vjpujis3SaJHyaFxKEQ=w663-h1177-n |
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Forum: General Discussions Topic: Instruction set Design - Reasoning? |
| BigEd |
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Posted: Tue Apr 05, 2016 8:16 am
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Replies: 21
Views: 4365
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| Similarly, the RISC-like 16-bit Inmos Transputer did not have a carry flag (or processor status register), and doing higher precision (32-bit or more) arithmetic was a bit difficult Well, well - you are quite right. I hadn't realised that. ... |
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Forum: Programming Topic: Managing code |
| BigEd |
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Posted: Fri May 29, 2015 3:21 pm
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Replies: 33
Views: 3085
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| ... the emacs camp: both visual editors have something of a learning curve, so people are likely to stick closely to the one they know how to use. At Inmos there was a folding version of microemacs, which became the normal way to work on the 25-line VDUs we had. Although microemacs is no true emacs, ... |
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Forum: Nostalgia Topic: First micro or computing experiences |
| BigEd |
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Posted: Mon Dec 09, 2013 8:17 pm
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Replies: 60
Views: 45933
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| ... our 65816 upgrade adventures of 2009. Oh, I should mention my Transputer accumulation ! I did a course on that around '89, and indeed worked at Inmos for some time, but no assembly. Cheers Ed [Edit: fix broken links] |
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Forum: Emulation and Simulation Topic: JIT 6502 in 800 lines of JavaScript |
| BigEd |
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Posted: Mon Apr 23, 2012 6:56 pm
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Replies: 4
Views: 1778
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| I am reminded of the Inmos T9000 (fewer than 9000 sold, quite possibly) which had an instruction grouper : it had knowledge of the capability of the execution pipeline and would group as many operations from the instruction stream as ... |
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Forum: General Discussions Topic: ARM: "inspired by" 6502? |
| BigEd |
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Posted: Sat Aug 13, 2011 1:01 pm
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Replies: 15
Views: 22442
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| ... But I digress.) So I just went through the same chain of searches and ended up here: http://www.theregister.co.uk/2009/06/11/pcw/page2.html Inmos? Ask anybody in the street today: “Never heard of it.” Let’s not list all the things that went wrong. There is one star survival, heritage, legacy, ... |
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Forum: Programming Topic: Wanted: An 65816 Assembler |
| BigEd |
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Posted: Fri Dec 31, 2010 7:43 pm
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Replies: 19
Views: 9619
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| I can't find it now, but I've read a comment to the effect that Inmos' OCCAM compiler would sometimes not manage to converge: every pass changed the lengths of the machine code and therefore the branches. Transputer machine code has an interesting construction. |
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