480:
The range of a signed 256-bit integer is from -57,896,044,618,658,097,711,785,492,504,343,953,926,634,992,332,820,282,019,728,792,003,956,564,819,968 to 57,896,044,618,658,097,711,785,492,504,343,953,926,634,992,332,820,282,019,728,792,003,956,564,819,967.
538:
22:
696:
programming language has built-in support for signed and unsigned arbitrary bit-width integers for all supported platforms, including 256-bit. The calling convention for exported functions using such integers however, has not been specified in
689:. "We realize that a 257 bits byte is quite unusual, but for smart contracts it is ok to have at least 256 bits numbers. The leading VM for smart contracts, Ethereum VM, introduced this practice and other blockchain VMs followed."
397:
838:
820:
2029:
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can operate on all these values in parallel. However, these processors do not operate on individual numbers that are 256 binary digits in length, only their
1001:
673:
use a 256-bit capability pointer, which includes capability and addressing information, on early implementations of their CHERI capability system.
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1323:
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1120:
1999:
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1382:
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330:
785:
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2066:
336:
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319:
308:
58:
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1887:
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994:
297:
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1914:
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Implementation of a 256-bit WideWord
Processor for the Data-Intensive Architecture (DIVA) Processing-In-Memory (PIM) Chip
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addressing) would greatly exceed the total data stored on Earth as of 2018, which has been estimated to be around 33.3
39:
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105:
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659:
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built to operate on 256-bit integers or addresses, though a number of processors do operate on 256-bit data.
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2017:
1976:
1964:
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1741:
1662:
1427:
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1031:
670:
438:
32:
630:
256-bit datapath, complete with register file and ALU blocks in a "WideWord" processor in 2002.
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2222:
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347:
79:
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2009:
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593:
507:
442:
411:
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1988:
1935:
1467:
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1036:
1018:
627:
249:
8:
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2706:
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2145:
2092:
1869:
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2256:
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256-bit processors could be used for addressing directly up to 2 bytes. Already 2 (for
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454:
259:
149:
144:
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914:"CHERI: a research platform deconflating hardware virtualization and protection"
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2120:
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682:
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979:
450:
239:
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1207:
905:
184:
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2412:
1482:
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604:
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303:
921:
Unpublished workshop paper for RESoLVE’12, March 3, 2012, London, UK
611:
design which employed a software engine to convert code written for
21:
2688:
1507:
843:
640:
542:
499:
940:"[llvm-dev] RFC: On non 8-bit bytes and the target for it"
588:
chips may operate data across a 256-bit memory bus (or possibly a
510:
before the introduction of the current gaming consoles especially
1497:
1455:
676:
470:
565:
are used to store several smaller numbers, such as eight 32-bit
457:
of that size. There are currently no mainstream general-purpose
1512:
1477:
1442:
862:
Draper, Jeffrey; Sondeen, Jeff; Chang Woo Kang (October 2002).
577:
have the size of 256-bits. Binary digits are found together in
526:
622:
funded Data-Intensive
Architecture (DIVA) system incorporated
469:
A 256-bit quantity can store 2 different values. The range of
1970:
1502:
1472:
912:; Paeps, Philip; Roe, Michael; Saidi, Hassen (3 March 2012).
892:
619:
522:
736:
Reinsel, David; Gantz, John; Rydning, John (November 2018).
502:
was the first high-definition gaming console to utilize the
2834:
1982:
1902:
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861:
769:
608:
1422:
1412:
612:
585:
458:
430:
615:
processors to the native instruction set of the chip.
473:
values that can be stored in 256 bits depends on the
685:
use 256- or 257-bit integers; 256-bit words for the
735:
46:. Unsourced material may be challenged and removed.
786:"What Are HBM, HBM2 and HBM2E? A Basic Definition"
2924:
445:(ALU) architectures are those that are based on
529:) utilize 64-bit, 128-bit, 256-bit, or higher.
839:"Transmeta Unveils Plans for TM8000 Processor"
995:
873:International Solid-State Circuits Conference
662:mathematical libraries. Applications include
391:
2000:Computer performance by orders of magnitude
1009:
1002:
988:
937:
900:; Woodruff, Jonathan; Anderson, Jonathan;
398:
384:
106:Learn how and when to remove this message
836:
658:Increasing the word size can accelerate
536:
938:Borisenkov, Dmitriy (23 October 2019).
783:
2925:
826:from the original on 10 February 2019.
983:
810:"Transmeta Efficeon TM8300 Processor"
1971:Floating-point operations per second
882:from the original on 29 August 2017.
44:adding citations to reliable sources
15:
13:
784:Harding, Scharon (15 April 2021).
14:
2944:
464:
2897:Semiconductor device fabrication
837:Williams, Martyn (29 May 2002).
124:Computer architecture bit widths
20:
2872:History of general-purpose CPUs
1099:Nondeterministic Turing machine
118:Computer architecture bit width
31:needs additional citations for
1052:Deterministic finite automaton
952:
931:
886:
855:
830:
802:
777:
757:
729:
429:units are those that are 256
1:
1843:Simultaneous and heterogenous
739:The Digitization of the World
722:
607:'s second-generation 256-bit
2527:Integrated memory controller
2509:Translation lookaside buffer
1708:Memory dependence prediction
1151:Random-access stored program
1104:Probabilistic Turing machine
927:Computer Science Laboratory.
653:Advanced Encryption Standard
7:
1983:Synaptic updates per second
765:"Xbox 360 review: Xbox 360"
705:
633:
561:etc.) where 256-bit vector
532:
10:
2949:
2387:Heterogeneous architecture
1309:Orthogonal instruction set
1079:Alternating Turing machine
1067:Quantum cellular automaton
555:Advanced Vector Extensions
494:
2877:Microprocessor chronology
2864:
2840:Dynamic frequency scaling
2813:
2749:
2687:
2641:
2593:
2548:
2468:
2395:
2364:
2269:
2190:
2154:
2108:
2008:
1995:Cache performance metrics
1934:
1868:
1818:
1729:
1720:
1693:
1648:
1615:
1587:
1578:
1398:
1301:
1290:
1161:
1017:
541:Laptop computer using an
2892:Hardware security module
2235:Digital signal processor
2212:Graphics processing unit
2024:Graphics processing unit
687:Ethereum Virtual Machine
517:Some buses on the newer
2845:Dynamic voltage scaling
2628:Memory address register
2522:Branch target predictor
2486:Address generation unit
2229:Physics processing unit
2018:Central processing unit
1977:Transactions per second
1965:Instructions per second
1888:Array processing (SIMT)
1032:Stored-program computer
671:University of Cambridge
439:central processing unit
437:) wide. Also, 256-bit
2651:Hardwired control unit
2533:Memory management unit
2498:Memory management unit
2247:Secure cryptoprocessor
2241:Tensor Processing Unit
2223:Vision processing unit
1957:Cycles per instruction
1951:Instructions per cycle
1898:Associative processing
1589:Instruction pipelining
1011:Processor technologies
569:numbers, and a single
546:
475:integer representation
348:Decimal floating-point
2734:Sum-addressed decoder
2480:Arithmetic logic unit
1607:Classic RISC pipeline
1561:Epiphany architecture
1408:Motorola 68000 series
817:Transmeta Corporation
712:Berkeley IRAM project
639:256 bits is a common
540:
443:arithmetic logic unit
412:computer architecture
285:Binary floating-point
2855:Performance per watt
2433:replacement policies
2099:Package on a package
1989:Performance per watt
1893:Pipelined processing
1663:Tomasulo's algorithm
1468:Clipper architecture
1324:Application-specific
1037:Finite-state machine
894:Watson, Robert N. M.
773:. February 15, 2006.
40:improve this article
2887:Digital electronics
2540:Instruction decoder
2492:Floating-point unit
2146:Soft microprocessor
2093:System in a package
1668:Reservation station
1198:Transport-triggered
908:; Moore, Simon W.;
669:Researchers at the
624:processor-in-memory
559:FMA instruction set
55:"256-bit computing"
2759:Integrated circuit
2603:Processor register
2257:Baseband processor
1602:Operand forwarding
1062:Cellular automaton
910:Murdoch, Steven J.
660:multiple precision
553:instruction sets (
547:
2920:
2919:
2809:
2808:
2428:Instruction cache
2418:Scratchpad memory
2265:
2264:
2252:Network processor
2181:Network on a chip
2136:Ultra-low-voltage
2087:Multi-chip module
1930:
1929:
1716:
1715:
1703:Branch prediction
1680:Register renaming
1574:
1573:
1556:VISC architecture
1378:Quantum computing
1373:VISC architecture
1255:Secondary storage
1171:Microarchitecture
1131:Register machines
960:"Primitive Types"
925:SRI International
898:Neumann, Peter G.
851:on 14 April 2010.
717:Computational RAM
645:symmetric ciphers
408:
407:
116:
115:
108:
90:
2940:
2882:Processor design
2774:Power management
2656:Instruction unit
2517:Branch predictor
2466:
2465:
2164:System on a chip
2106:
2105:
1946:Transistor count
1870:Flynn's taxonomy
1727:
1726:
1585:
1584:
1388:Addressing modes
1299:
1298:
1245:Memory hierarchy
1109:Hypercomputation
1027:Abstract machine
1004:
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859:
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847:. Archived from
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745:. IDC. p. 6
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733:
519:System on a chip
504:ATI Technologies
491:(over 2 bytes).
423:memory addresses
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393:
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104:
100:
97:
91:
89:
48:
24:
16:
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2947:
2943:
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2939:
2938:
2937:
2923:
2922:
2921:
2916:
2902:Tick–tock model
2860:
2816:
2805:
2745:
2729:Address decoder
2683:
2637:
2633:Program counter
2608:Status register
2589:
2544:
2504:Load–store unit
2471:
2464:
2391:
2360:
2261:
2218:Image processor
2193:
2186:
2156:
2150:
2126:Microcontroller
2116:Embedded system
2104:
2004:
1937:
1926:
1864:
1814:
1712:
1689:
1673:Re-order buffer
1644:
1625:Data dependency
1611:
1570:
1400:
1394:
1293:
1292:Instruction set
1286:
1272:Multiprocessing
1240:Cache hierarchy
1233:Register/memory
1157:
1057:Queue automaton
1013:
1008:
978:
977:
968:
966:
958:
957:
953:
944:
942:
936:
932:
916:
904:; Dave, Nirav;
891:
887:
879:
868:
860:
856:
835:
831:
823:
812:
808:
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803:
794:
792:
782:
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763:
762:
758:
748:
746:
742:
734:
730:
725:
708:
683:Smart contracts
636:
535:
512:Nintendo Switch
497:
467:
404:
375:
342:
279:
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119:
112:
101:
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92:
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47:
37:
25:
12:
11:
5:
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2907:Pin grid array
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2753:
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2741:Barrel shifter
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2737:
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2731:
2724:Binary decoder
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2704:
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2693:
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2647:
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2635:
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2615:
2613:Stack register
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2207:AI accelerator
2204:
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2173:
2170:Multiprocessor
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2160:
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2149:
2148:
2143:
2138:
2133:
2128:
2123:
2121:Microprocessor
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2110:
2109:By application
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2102:
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2052:Tile processor
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2014:
2012:
2006:
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1862:
1857:
1852:
1847:
1846:
1845:
1840:
1838:Hyperthreading
1830:
1824:
1822:
1820:Multithreading
1816:
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1802:
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1609:
1604:
1599:
1597:Pipeline stall
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1572:
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1548:
1546:z/Architecture
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1288:
1287:
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1279:
1274:
1269:
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1259:
1258:
1257:
1252:
1250:Virtual memory
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1190:
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1155:
1154:
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1138:
1128:
1123:
1118:
1117:
1116:
1111:
1106:
1101:
1096:
1091:
1086:
1081:
1074:Turing machine
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1069:
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1029:
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1021:
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902:Anderson, Ross
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854:
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790:Tom's Hardware
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719:
714:
707:
704:
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690:
680:
679:hash function.
674:
667:
656:
635:
632:
626:(PIM) 5-stage
603:processor was
567:floating-point
534:
531:
496:
493:
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465:Representation
463:
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2714:
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2710:
2708:
2705:
2703:
2702:Demultiplexer
2700:
2698:
2695:
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2692:
2690:
2686:
2680:
2677:
2675:
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2669:
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2654:
2652:
2649:
2648:
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2626:
2624:
2623:Memory buffer
2621:
2619:
2618:Register file
2616:
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2609:
2606:
2604:
2601:
2600:
2598:
2596:
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2571:
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2559:
2558:Combinational
2556:
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2100:
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2019:
2016:
2015:
2013:
2011:
2007:
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1998:
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1981:
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1969:
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1666:
1665:
1664:
1661:
1659:
1658:Scoreboarding
1656:
1655:
1653:
1651:
1647:
1641:
1640:False sharing
1638:
1636:
1633:
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1479:
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1459:
1457:
1454:
1452:
1449:
1448:
1446:
1444:
1441:
1439:
1436:
1434:
1433:Stanford MIPS
1431:
1429:
1426:
1424:
1421:
1419:
1416:
1414:
1411:
1409:
1406:
1405:
1403:
1397:
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1364:
1361:
1359:
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1335:
1332:
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1322:
1320:
1317:
1315:
1312:
1310:
1307:
1306:
1304:
1300:
1297:
1295:
1294:architectures
1289:
1283:
1280:
1278:
1275:
1273:
1270:
1268:
1265:
1263:
1262:Heterogeneous
1260:
1256:
1253:
1251:
1248:
1247:
1246:
1243:
1241:
1238:
1234:
1231:
1229:
1226:
1224:
1221:
1219:
1216:
1215:
1214:
1213:Memory access
1211:
1209:
1206:
1204:
1201:
1199:
1196:
1194:
1191:
1187:
1184:
1183:
1182:
1179:
1177:
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1172:
1169:
1168:
1166:
1164:
1160:
1152:
1149:
1147:
1146:Random-access
1144:
1142:
1139:
1137:
1134:
1133:
1132:
1129:
1127:
1126:Stack machine
1124:
1122:
1119:
1115:
1112:
1110:
1107:
1105:
1102:
1100:
1097:
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1080:
1077:
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1072:
1068:
1065:
1063:
1060:
1058:
1055:
1053:
1050:
1048:
1045:
1043:
1042:with datapath
1040:
1039:
1038:
1035:
1033:
1030:
1028:
1025:
1024:
1022:
1020:
1016:
1012:
1005:
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986:
985:
982:
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961:
955:
941:
934:
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878:
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867:
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822:
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791:
787:
780:
772:
771:
766:
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718:
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713:
710:
709:
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695:
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631:
629:
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621:
616:
614:
610:
606:
602:
597:
595:
591:
587:
582:
581:collections.
580:
576:
572:
568:
564:
560:
556:
552:
549:CPUs feature
544:
539:
530:
528:
525:developed by
524:
520:
515:
513:
509:
505:
501:
492:
490:
486:
481:
478:
476:
472:
462:
460:
456:
452:
451:address buses
448:
444:
440:
436:
432:
428:
424:
420:
417:
413:
401:
396:
394:
389:
387:
382:
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372:
369:
367:
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356:
355:
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345:
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335:
332:
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318:
316:
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137:
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110:
107:
99:
88:
85:
81:
78:
74:
71:
67:
64:
60:
57: –
56:
52:
51:Find sources:
45:
41:
35:
34:
29:This article
27:
23:
18:
17:
2912:Chip carrier
2850:Clock gating
2769:Mixed-signal
2666:Write buffer
2643:Control unit
2455:Clock signal
2333:
2194:accelerators
2176:Cypress PSoC
1833:Simultaneous
1650:Out-of-order
1282:Neuromorphic
1163:Architecture
1121:Belt machine
1114:Zeno machine
1047:Hierarchical
967:. Retrieved
963:
954:
943:. Retrieved
933:
920:
888:
864:
857:
849:the original
842:
832:
804:
793:. Retrieved
789:
779:
768:
759:
747:. Retrieved
738:
731:
664:cryptography
649:cryptography
617:
598:
583:
548:
516:
506:256-bit GPU
498:
482:
479:
468:
415:
409:
229:
102:
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
2697:Multiplexer
2661:Data buffer
2372:Single-core
2344:bit slicing
2202:Coprocessor
2057:Coprocessor
1938:performance
1860:Cooperative
1850:Speculative
1810:Distributed
1769:Superscalar
1754:Instruction
1722:Parallelism
1695:Speculative
1527:System/3x0
1399:Instruction
1176:Von Neumann
1089:Post–Turing
964:ziglang.org
906:Laurie, Ben
571:instruction
425:, or other
250:Application
240:bit slicing
2817:management
2712:Multiplier
2573:Logic gate
2563:Sequential
2470:Functional
2450:Clock rate
2423:Data cache
2396:Components
2377:Multi-core
2365:Core count
1855:Preemptive
1759:Pipelining
1742:Bit-serial
1685:Wide-issue
1630:Structural
1552:Tilera ISA
1518:MicroBlaze
1488:ETRAX CRIS
1383:Comparison
1228:Load–store
1208:Endianness
969:2024-07-05
945:2021-09-11
795:2021-09-11
749:27 October
723:References
651:, such as
459:processors
455:data buses
441:(CPU) and
96:April 2023
66:newspapers
2933:Data unit
2751:Circuitry
2671:Microcode
2595:Registers
2438:coherence
2413:CPU cache
2271:Word size
1936:Processor
1580:Execution
1483:DEC Alpha
1461:Power ISA
1277:Cognitive
1084:Universal
628:pipelined
605:Transmeta
592:bus with
575:registers
563:registers
545:processor
447:registers
351:precision
288:precision
2927:Category
2689:Datapath
2382:Manycore
2354:variable
2192:Hardware
1828:Temporal
1508:OpenRISC
1203:Cellular
1193:Dataflow
1186:modified
877:Archived
844:PC World
821:Archived
706:See also
641:key size
634:Software
601:Efficeon
557:and the
543:Efficeon
533:Hardware
500:Xbox 360
419:integers
2865:Related
2796:Quantum
2786:Digital
2781:Boolean
2679:Counter
2578:Quantum
2339:512-bit
2334:256-bit
2329:128-bit
2172:(MPSoC)
2157:on chip
2155:Systems
1973:(FLOPS)
1786:Process
1635:Control
1617:Hazards
1503:Itanium
1498:Unicore
1456:PowerPC
1181:Harvard
1141:Pointer
1136:Counter
1094:Quantum
677:SHA-256
590:512-bit
584:Modern
579:128-bit
495:History
485:128-bit
471:integer
416:256-bit
80:scholar
2801:Switch
2791:Analog
2529:(IMC)
2500:(MMU)
2349:others
2324:64-bit
2319:48-bit
2314:32-bit
2309:24-bit
2304:16-bit
2299:15-bit
2294:12-bit
2131:Mobile
2047:Stream
2042:Barrel
2037:Vector
2026:(GPU)
1985:(SUPS)
1953:(IPC)
1805:Memory
1798:Vector
1781:Thread
1764:Scalar
1566:Others
1513:RISC-V
1478:SuperH
1447:Power
1443:MIPS-X
1418:PDP-11
1267:Fabric
1019:Models
655:(AES).
527:Nvidia
521:(e.g.
477:used.
435:octets
82:
75:
68:
61:
53:
2857:(PPW)
2815:Power
2707:Adder
2583:Array
2550:Logic
2511:(TLB)
2494:(FPU)
2488:(AGU)
2482:(ALU)
2472:units
2408:Cache
2289:8-bit
2284:4-bit
2279:1-bit
2243:(TPU)
2237:(DSP)
2231:(PPU)
2225:(VPU)
2214:(GPU)
2183:(NoC)
2166:(SoC)
2101:(PoP)
2095:(SiP)
2089:(MCM)
2030:GPGPU
2020:(CPU)
2010:Types
1991:(PPW)
1979:(TPS)
1967:(IPS)
1959:(CPI)
1730:Level
1541:S/390
1536:S/370
1531:S/360
1473:SPARC
1451:POWER
1334:TRIPS
1302:Types
917:(PDF)
880:(PDF)
869:(PDF)
824:(PDF)
813:(PDF)
743:(PDF)
620:DARPA
523:Tegra
508:Xenos
453:, or
87:JSTOR
73:books
2835:ACPI
2568:Glue
2460:FIFO
2403:Core
2141:ASIP
2082:CPLD
2077:FPOA
2072:FPGA
2067:ASIC
1920:SPMD
1915:MIMD
1910:MISD
1903:SWAR
1883:SIMD
1878:SISD
1793:Data
1776:Task
1747:Word
1493:M32R
1438:MIPS
1401:sets
1368:ZISC
1363:NISC
1358:OISC
1353:MISC
1346:EPIC
1341:VLIW
1329:EDGE
1319:RISC
1314:CISC
1223:HUMA
1218:NUMA
770:CNET
751:2022
699:ABIs
692:The
643:for
618:The
609:VLIW
599:The
594:HBM3
551:SIMD
433:(32
431:bits
427:data
339:(Ă—8)
333:(Ă—4)
322:(Ă—2)
311:(Ă—1)
300:(×½)
59:news
2830:APM
2825:PMU
2717:CPU
2674:ROM
2445:Bus
2062:PAL
1737:Bit
1523:LMC
1428:ARM
1423:x86
1413:VAX
694:Zig
647:in
613:x86
596:).
586:GPU
489:ZBs
410:In
371:128
337:256
331:128
235:512
230:256
225:128
130:Bit
42:by
2929::
2764:3D
962:.
923:.
919:.
896:;
875:.
871:.
841:.
819:.
815:.
788:.
767:.
514:.
449:,
421:,
414:,
366:64
361:32
326:80
320:64
315:40
309:32
304:24
298:16
275:64
270:32
265:16
220:64
215:60
210:48
205:45
200:36
195:32
190:31
185:30
180:28
175:26
170:24
165:18
160:16
155:12
1003:e
996:t
989:v
972:.
948:.
798:.
753:.
701:.
666:.
399:e
392:t
385:v
260:8
150:8
145:4
140:1
109:)
103:(
98:)
94:(
84:·
77:·
70:·
63:·
36:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
