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|    comp.arch    |    Apparently more than just beeps & boops    |    131,241 messages    |
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|    Message 129,358 of 131,241    |
|    John Savard to All    |
|    Re: By Popular Demand    |
|    09 Aug 25 17:01:30    |
      From: quadibloc@invalid.invalid              I modified the 35-bit instructions so as to introduce the wonders of       addressing modes to load-store memory-reference instructions with a 16-bit       displacement, instead of just load-store memory-reference instructions       using register indirect addressing.              But that lost the memory-reference operate instructions the opcodes for       the Compatible floating-point type. That shouldn't have been a worry...       but the feature in the Type V header that I thought I had at one time had       been removed. So I put it back... and added another one that was needed       which I had never thought to include.              So now I can say that in this block, not only will normal floating-point       instructions use the old 360 format, but they'll *truncate* instead of       rounding, to produce exactly the same results, bad as they might have       been, as a real 360 would have produced back in the day.              The Type V block format, at least with option bits 00, was made to do a       particular job - and so I'm seeing to it that it will do that job!              John Savard              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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