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  2. HLT (x86 instruction) - Wikipedia

    en.wikipedia.org/wiki/HLT_(x86_instruction)

    All x86 processors from the 8086 onward had the HLT instruction, but it was not used by MS-DOS prior to 6.0 [2] and was not specifically designed to reduce power consumption until the release of the Intel DX4 processor in 1994. MS-DOS 6.0 provided a POWER.EXE that could be installed in CONFIG.SYS and in Microsoft's tests it saved 5%. [3]

  3. x86 instruction listings - Wikipedia

    en.wikipedia.org/wiki/X86_instruction_listings

    Will change OperandSize from 16-bit to 32-bit if CS.D=0, or from 32-bit to 16-bit if CS.D=1. 67h: AddressSize override. Will change AddressSize from 16-bit to 32-bit if CS.D=0, or from 32-bit to 16-bit if CS.D=1. The 80386 also introduced the two new segment registers FS and GS as well as the x86 control, debug and test registers.

  4. List of discontinued x86 instructions - Wikipedia

    en.wikipedia.org/wiki/List_of_discontinued_x86...

    Then, for each of 4 consecutive AVX-512 registers, they will, for each 32-bit lane, interpret the lane as a two-component vector (signed 16-bit) and perform a dot-product with the corresponding two-component vector that was read from memory (the first two-component vector from memory is used for the first AVX-512 source register, and so on).

  5. xv6 - Wikipedia

    en.wikipedia.org/wiki/Xv6

    pdos.csail.mit.edu /6.828 /xv6 xv6 is a modern reimplementation of Sixth Edition Unix in ANSI C for multiprocessor x86 and RISC-V systems. It was created for educational purposes in MIT 's Operating System Engineering course in 2006.

  6. PCLinuxOS - Wikipedia

    en.wikipedia.org/wiki/PCLinuxOS

    As a result, 32-bit ISOs of the distribution, official 32-bit package updates, and forum support became unavailable. While this doesn't prevent unofficial support, following the announcement only 64-bit ISO images and package updates are available through the official webpage and channels.

  7. Halt and Catch Fire (computing) - Wikipedia

    en.wikipedia.org/wiki/Halt_and_Catch_Fire...

    The Motorola 6800 microprocessor was the first for which an undocumented assembly mnemonic HCF became widely known. The operation codes (opcodes—the portions of the machine language instructions that specify an operation to be performed) hexadecimal 9D and DD were reported and given the unofficial mnemonic HCF in a December 1977 article by Gerry Wheeler in BYTE magazine on undocumented ...

  8. Vortex86 - Wikipedia

    en.wikipedia.org/wiki/Vortex86

    The CPU core is clocked at 600 MHz to 1 GHz (2.02 W @ 800 MHz [19]) and improves on the SX with a 4-way 16 KB Data + 16 KB Instruction L1 cache, adds a 4-way 256 KB L2 cache, in write-through or write-back mode, and an FPU. The memory controller drops the ability to use SDRAM but increases the amount and speed of DDR2 memory it can drive to 1 ...

  9. HLT - Wikipedia

    en.wikipedia.org/wiki/HLT

    HLT (x86 instruction) ... (ISO 639-3: hlt) Hurricane Liaison Team of the United ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...