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compatible CPU. The meanings of terms derived from word, such as longword, doubleword, quadword, and halfword, also vary with the CPU and OS. Practically all...

doubleword, word to extended doubleword, and doubleword to quadword, respectively (in the x86 context a byte has 8 bits, a word 16 bits, a doubleword...

to also operate on XMM (128-bit) and YMM (256-bit) registers AVX-512 Doubleword and Quadword Instructions (DQ) – adds new 32-bit and 64-bit AVX-512 instructions...

extends AVX-512 to cover 8-bit and 16-bit integer operations AVX-512 Doubleword and Quadword Instructions (DQ) – enhanced 32-bit and 64-bit integer operations...

and store doublewords, to perform integer addition, subtraction, multiplication, division, and shift operations on them, and to move doubleword between...

Data structure alignment is the way data is arranged and accessed in computer memory. It consists of three separate but related issues: data alignment...

the same names as the older i386 MOVSD (MOVe String Doubleword) and CMPSD (CoMPare String Doubleword) instructions, however their operations are completely...

word on a 32-bit processor. Or, the number of values representable in a doubleword on a 16-bit processor, such as the original x86 processors. The range...

64-bit integer (quadword), one may use it to contain two 32-bit integers (doubleword), four 16-bit integers (word) or eight 8-bit integers (byte). Given that...

architecture, there are 8-bit bytes, 16-bit halfwords, 32-bit words and 64-bit doublewords. The z/Architecture, which is the 64-bit member of that architecture...

Accumulate (with Saturation) Doubleword to Doubleword 2x4 doublewords (a0-a3, b0-b3) + 4 doublewords (c0-c3) → 4 doublewords (r0-r3) r0 = a0 * b0 + c0,...

sequential execution of instructions; an interrupt stores the BEAR in the doubleword at real address 272 (11016). After an Execute of a branch, the BEAR contains...

operate on larger units called halfword (2 bytes), fullword (4 bytes), doubleword (8 bytes), quad word (16 bytes) and 2048 byte storage block, specifying...

documentation relating to Cell, a word is always taken to mean 32 bits, a doubleword means 64 bits, and a quadword means 128 bits. In 2008, IBM announced a...

occurs asynchronously. On completion, status is returned in the QIO status doubleword. The QIO request may also specify that completion set an event flag or...

floating-point mixed positive-negative accumulate PSWAPD – Packed swap doubleword MMX extension instructions (Integer SSE) are the following: MASKMOVQ –...

introduced, SBus was modified to support extended transfers of a 64 bits doubleword per cycle to produce a 200 MB/s 64-bit bus. This variant of the SBus architecture...

original on 1999-11-03. The instruction brings down the upper word of the doubleword register without affecting its upper 16 bits. Coldwin, Gynvael (2009-12-29)...

suspend/resume instructions (TSUSLDTRK and TRESLDTRK) 16 17 avx512-dq AVX-512 Doubleword and Quadword Instructions mawau The value of userspace MPX Address-Width...

reasons. E.g., z/OS That is, you can position the cursor at a word or doubleword containing an address and request a display of the storage at that address...

32-bit (CardBus) word mode 533 Mbit/s 66.66 MB/s PC Card 32-bit (CardBus) doubleword mode 1067 Mbit/s 133.33 MB/s ExpressCard 1.2 PCI Express mode 2500 Mbit/s...

specified by the Extension Address in bits 42-47 of the Program Status Doubleword, with the Extension Address being concatenated with the lower 16 bits...

satsw(a2b2 + a3b3) ...] PHSUBW, PHSUBD Packed Horizontal Subtract (Words or Doublewords) takes registers A = [a0 a1 a2 ...] and B = [b0 b1 b2 ...] and outputs...

storage width of 72 bits, which comprise 64 data bits (8 bytes, or one doubleword) plus 8 parity bits. The IBM 2365 model 1 contains 131,072 (128 K) bytes...

2026-05-22. The terms "bits," "nibbles," "bytes," "halfwords," "words," and "doublewords" refer to lengths of 1, 4, 8, 16, 32, and 64 bits, respectively.{{cite...

muxes. For this example, a direct-mapped 16 KB data cache which returns doubleword (8-byte) aligned values is assumed. Each line of the SRAM is 8 bytes,...

is executed, or the channel returns a status modifier. Each CCW is a doubleword (eight bytes) as follows: bit 0 7 8 31 +--------+-----------------------+...

at least twice. Typical PC memory systems can only sustain one 8-byte doubleword per 10–30 double-precision multiply–adds, so values loaded into the cache...

modified state - special state – asking for a reservation for load and store doubleword (for 64-bit implementations) "Shared intervention" from SL is done only...

series supports execution of two-instruction sequences, which must be doubleword-aligned. Some architectures support an execute instruction which operates...

Alignment Factor 00 Byte Alignment 01 Halfword Alignment 03 Word Alignment 07 Doubleword Alignment SD or PC Bits 1–2 Not Used Bit 3 If 1, RMODE 64; otherwise use...

has a 32-bit instruction format and operates on data from one bit to a doubleword (64 bits) in size. Only fixed-point binary arithmetic is provided. The...

segment protection with page protection. With z/Architecture the STE is a doubleword. The segment-table entry for the S/370 has the following form Page-Table...

floating-point conversion PSWAPD mm1,mm2/m64 0F 0F /r BB Packed Swap Doubleword: dst[31:0] <- src[63:32] dst[63:32] <- src[31:0] PFNACC mm1,mm2/m64 0F...

instructions operating on bytes, halfwords (16-bit), words (32-bit), doublewords (64-bit), and byte strings (up to 128 bits). Depending on the variant...

directory. During each cycle, four words can be read from it and two doublewords can be written to it. The memory data bus is 72 bits wide, with 64 bits...

kilobytes (131,072 bytes) were needed). Fields of the Program Status Doubleword were used to select the current active register bank and page table. The...

ECX, and EDX are not preserved, and the size of the parameter list in doublewords is passed in AL. Syscall is the standard calling convention for 32 bit...

were withdrawn on September 15, 1980. Main memory, which was four-way doubleword interleaved, could be 1 to 8 megabytes, with offerings selectable in increments...

System z supports types AD, JD, QD, and VD, which represent 8 byte (doubleword) versions of types 'A', 'J', 'Q', and 'V' to hold 64 bit addresses. The...

Alignment of this item 00000 Byte 00001 Halfword 00010 Fullword 00011 Doubleword 00100 Quadword 00101 4KB page All alignments shown are available for ED...