[HN Gopher] Calculating Pi on the 4004
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       Calculating Pi on the 4004
        
       Author : jamesy0ung
       Score  : 75 points
       Date   : 2022-04-16 12:02 UTC (10 hours ago)
        
 (HTM) web link (mark.engineer)
 (TXT) w3m dump (mark.engineer)
        
       | hilbert42 wrote:
       | Fascinating indeed. As a comparison, it would be interesting to
       | do the same for various other processors such as, 8008, 8048,
       | 8080, 8085, 8051, Z80, V20, 8088/86, 8086/87 combo, etc.
       | 
       | First we'd test these procs with a move/best fit translation of
       | the 4004 code to 8-bit then redo the process with their
       | additional/native instructions at 8-bit, etc.
       | 
       | Wishful thinking I know, but I've always wanted to know how these
       | early procs compared against each other in raw calculating power.
        
       | bluenose69 wrote:
       | This is a wonderfully engaging and insightful article, giving
       | readers a good feeling for what computing was like in the old
       | days. Plus, there's a link to a similarly intriguing article
       | about the ENIAC situation (see below, the PDF is available at sci
       | hub)
       | 
       | Shelburne, Brian J. "The ENIAC's 1949 Determination of p." IEEE
       | Annals of the History of Computing 34, no. 3 (July 2012): 44-54.
       | https://doi.org/10.1109/MAHC.2011.61.
        
       | fortran77 wrote:
       | See also Steve Wozniak's "Calculating e to 116,000 Places On An
       | Apple ]["
       | 
       | https://downloads.reactivemicro.com/Users/Grant_Stockley/App...
        
       | pyautogui wrote:
       | Facinating article! I wonder how it would compare to, say, the
       | PDP-8/E.
        
       | ngcc_hk wrote:
       | Quite interesting. The minor issue is not using rom and ram of
       | that era. Is the timing similar ?
        
       | weejewel wrote:
       | Next: calculating 4004 on the Pi
        
         | jrootabega wrote:
         | Pretty easy; just calculcate 4003 and then add 1. What am I
         | missing?
        
           | Stupulous wrote:
           | Easy enough in theory. If you actually try to implement this,
           | good luck calculating 4003 without calculating 4002 and
           | adding one.
        
             | jrootabega wrote:
             | Oh, I calculated 4002 for my PhD, and I will just load an
             | image from memory.
        
           | jacquesm wrote:
           | A pun.
        
         | [deleted]
        
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       (page generated 2022-04-16 23:01 UTC)