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4-letter words containing 65

  • 6501 — (hardware)   An eight-bit microprocessor, the first sold by MOS Technology. The 6501 pin-compatible with the Motorola 6800 and was the first member of the 650x series. It had an on-chip clock oscillator. See also 6502.
  • 6502 — (hardware)   An eight-bit microprocessor designed by MOS Technology around 1975 and made by Rockwell. Unlike the Intel 8080 and its kind, the 6502 had very few registers. It was an 8-bit processor, with 16-bit address bus. Inside was one 8-bit data register (accumulator), two 8-bit index registers and an 8-bit stack pointer (stack was preset from address 256 to 511). It used these index and stack registers effectively, with more addressing modes, including a fast zero-page mode that accessed memory locations from address 0 to 255 with an 8-bit address (it didn't have to fetch a second byte for the address). Back when the 6502 was introduced, RAM was actually faster than CPUs, so it made sense to optimise for RAM access rather than increase the number of registers on a chip. The 6502 was used in the BBC Microcomputer, Apple II, Commodore, Apple Computer and Atari personal computers. Steve Wozniak described it as the first chip you could get for less than a hundred dollars (actually a quarter of the 6800 price). The 6502's indirect jump instruction, JMP (xxxx), was broken. If the address was hexadecimal xxFF, the processor would not access the address stored in xxFF and xxFF + 1, but rather xxFF and xx00. The 6510 did not fix this bug, nor was it fixed in any of the other NMOS versions of the 6502 such as the 8502. Bill Mensch at Western Design Center was probably the first to fix it, in the 65C02. The 6502 also had undocumented instructions. The 65816 is an expanded version of the 6502. There is a 6502 assembler by Doug Jones <[email protected]> which supports macros and conditional features and can be used for linkage editing of object files. It requires Pascal. See also cross-assembler, RTI, Small-C.
  • 650x — (hardware)   A family of microprocessors from MOS Technologies, based on the design of the Motorola 6800 (introduced around 1975). The family included the 6502 used in several early personal computers.
  • 6510 — (processor)   A successor to the 6502. The 6510 was used in the Commodore 64C. Successors included the 8502 used in the Commodore 128 line.

On this page, we collect all 4-letter words with 65. It’s easy to find right word with a certain length. It is the easiest way to find 4-letter word that contains 65 to use in Scrabble or Crossword puzzles.

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