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  • B or BYTE: byte-sized memory variable W or WORD: word (2 byte) sized memory variable D or DWORD: doubleword (4-byte) sized memory variable Q or QWORD: quadword (8-byte) sized memory variable T or TWORD: 10-byte-sized memory variable NEAR: program label accessed within a segment FAR: program label accessed from outside this segment ABS: an absolute number (i.e., an immediate constant)

    DOCUMENTATION: A86 Assembler Package by Eric Isaacson Chapter 10

  • In addition, the 87 floating point processor manipulates 8-byte quantities, which we call Q-words, and 10-byte quantities, which we call T-bytes.

    DOCUMENTATION: A86 Assembler Package by Eric Isaacson Chapter 9

  • Full precision numbers are intended for storage of intermediate results (on the stack); they exist to insure maximum accuracy for calculations on double precision numbers, which is the official external format of 87 numbers. mem8r is an 8-byte memory quantity (typically declared with a DQ directive) containing a double precision floating point number.

    DOCUMENTATION: A86 Assembler Package by Eric Isaacson Chapter 7

  • To determine the memory use of these collections, I assumed 8-byte headers on normal objects, 12 - and 16-byte headers on arrays (see here),

    The Code Project Latest Articles

  • If you need more than 2 billion you can always go with bigint (8-byte int) and get articles

  • An 8-byte object header (4-byte SyncBlock and a 4-byte type descriptor)

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  • DWORD to a __int64, since the __int64 is an 8-byte value, which is big enough to hold a pointer on both 32-bit and 64-bit Windows.

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  • At least, that's the theory advanced by several Register readers, who posit an 8-byte blank field was converted to binary format, giving it a value of

    The Register

  • Convert [Column 0] from 4-byte signed integer to 8-byte signed integer

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  • The last 4 bytes of the 8-byte header are for the pooltag - from Windows Server 2003 onwards this is enabled by default and gives us some way to see who made the pool allocation requests.

    TechNet Blogs


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