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Ternary computer TRINITY-2004 (instruction set)
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Ternary computer TRINITY-2004 (instruction set)
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 Admin  Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley 
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Lets name this instruction set as "TRINITY-2004" (year of design)
It can be used as microcode for next generation of TRINITY processor! 1 trit - 3 values (N,O,P or -1,0,+1); 1 triad (3 trits) - 27 values; 1 tryte (6 trits, 2 triads) - 729 values; 1 tradr (9 trits, 3 triads) - 19 683 values; 1 trord (12 trits, 4 triads, 2 trytes) - 531 441 values; 1 truadr (18 trits, 6 triads, 3 trytes, 2 tradrs) - 387 420 489 values; 1 truble (24 trits, 8 triads, 4 trytes, 2 trords) - 282 429 536 481 values; New words "tradr" and "trord" mean "ternary address" and "ternary word" respectively  New words "truadr" and "truble" mean "double ternary address" and "double ternary word" respectively  P.S. And "tribble" must be 2 trits (3 tribbles = 1 tryte) |
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| 09 Jan 2008 06:35 |
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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Another idea to rename "triad" (half of tryte) to "tribble" (like nibble that is half of byte)
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| 10 Jan 2008 18:40 |
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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Idea about representation of floating point numbers: Lets take "truble" and divide it to 2 parts: 6-trit exponent and 18-trit fraction. By accuracy it is better than 32-bit "float", worse than 64-bit "double" and similar to 36-bit floating number in IBM System/360 from 1964 that had 9-bit sign and exponent and 27-bit fraction. Because of nature of balanced ternary numeric system we don't need "biasing" exponent. Also we don't need separate sign bit - we simply combine it with "hidden" most significant bit of fraction instead and it will be part of full 18-trit fraction. So range of exponent is from -364 to +364 (3^6/2) and fraction from -193710244 to +193710244 (3^18/2 that is max possible integer represented by this floating point format). To simplify formula for calculation number from representation we may simply forget about "fractional" nature of fraction and say F*3^E
P.S. here ^ means "power" |
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| 16 Jan 2008 20:18 |
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Retired
Joined: 03 Aug 2003 22:37 Posts: 1474 Location: Moscow
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So, let's take the representation as a basic representation of fractional numbers for ternary platform.
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| 19 Jan 2008 04:07 | ||||||||||
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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Right now I think that ability to compare normalized floating point numbers as integers is good and to have it we should do "fraction" really fractional (-1 < F < 1): (F*3^18)*3^E = F*3^(18+E). In this case for example to do float from integer 193710244 (PPPPPPPPPPPPPPPPPP) we have to add exponent +18 (OOPNOO): OOPNOOPPPPPPPPPPPPPPPPPP (here fraction is O.PPPPPPPPPPPPPPPPPP). Also to represent 0.5 we will use OOOOOOPPPPPPPPPPPPPPPPPP (error is 0.00000000258).
P.S. But in case of integer "fraction" described in my previous post we still can use normalization as shifting to the left and comparison "normalized" floating point numbers as regular integers... Last edited by Shaos on 20 Sep 2012 20:43, edited 1 time in total. |
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| 19 Jan 2008 15:41 |
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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I forgot one important feature of balanced ternary numeric system - fractional number may have not zero in integer part of balanced ternary representation! For example P.N is 0.666...
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| 18 Feb 2008 21:17 |
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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Some ideas about characters mapping for 3-trit architecture (copyright by me 2005-2008):
It covers these languages: 1) English 2) Russian 3) Greek 4) Ukranian 5) Belorusian 6) Rusyn 7) Serbian 8) Bulgarian (one character looks little bit different from standard) 9) Macedonian P.S. Later modification (September 2008): 
Here specific Macedonian characters  were removed and specific Finnish characters  were added...Last edited by Shaos on 20 Sep 2012 20:52, edited 7 times in total. |
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| 30 Aug 2008 23:02 |
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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Today I finished full emulator of this command set! A few days ago I designed "user interface" of first prototype my ternary computer. It consists of line of ternary LEDs and line of ternary switches. 9 LEDs always display state of PC, 3 LEDs display ternary data (see below) and 3 more LEDs always display state of accumulator register A. 9 switches set some address, 3 switches set some data and 3 more switches are control ones. So we have totally 15 LEDs and 15 switches. Control switches: 1) input/output ternary switch: P (top position) - using specified address write data to the memory (data LEDs display this 3-trit data); O (neutral position) - ignore address and data switches (data LEDs display data from memory address PC); N (bottom position) - ignore data switches and display data from specified address; 2) subprogram ternary switch: P (top position) - interrupt main program, save current PC and jump to specified address; O (neutral position) - do not disturb working program; N (bottom position) - stop subprogram and restore PC to return to main program; 3) step/run ternary switch: P (top position) - execute one step of the program; O (neutral position) - pause mode; N (bottom position) - run program from current position. Emulation program is a little bit smaller than 1000 lines of Java-code: http://www.nedopc.org/ternary/java.php?applet=3 Last edited by Shaos on 20 Sep 2012 20:44, edited 1 time in total. |
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| 05 Nov 2008 22:58 |
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Maniac
Joined: 17 Sep 2012 13:36 Posts: 277 Location: 81.170.128.52
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That's pretty neat. Just to see it in action, I fed it the values "+0+ -+- 0++ 0-+ ---" and it started performing some sort of operation (it looked like some sort of incrementation).
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| 06 Nov 2008 13:05 | ||||||||||
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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 Easiest way to see it in action is shifting most right switch down and it will run program from memory - OOO in each cell that is ADI 0 command (A=A+1) repeated multiple times:  |
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| 06 Nov 2008 16:44 |
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Admin Joined: 08 Jan 2003 23:22 Posts: 22883 Location: Silicon Valley
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moving up
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| 10 Nov 2012 08:53 |
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