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BMI introduced VEX-coded arithmetic and bit manipulation instructions that operate on general purpose registers. AVX-512 introduced 8 mask registers and added VEX-coded instructions to manipulate them. (VEX.B̅ is ignored when the field is used to encode a mask register, but VEX.R̅ and VEX.v̅ 3 are not, and must be set to 1 in 64-bit mode. [5])
The EVEX scheme is a 4-byte extension to the VEX scheme which supports the AVX-512 instruction set and allows addressing new 512-bit ZMM registers and new 64-bit operand mask registers. With Advanced Performance Extensions , the Extended EVEX prefix redefines the semantics of several payload bits.
(Availability of the VEX-encoded 128-bit version is indicated by different CPUID bits: PCLMULQDQ and AVX.) The wider than 128-bit variations of the instruction perform the same operation on each 128-bit portion of input registers, but they do not extend it to select quadwords from different 128-bit fields (the meaning of imm8 operand is the ...
In-line setup creates the test fixture in the same method as the rest of the test. While in-line setup is the simplest test fixture to create, it leads to duplication when multiple tests require the same initial data. Delegate setup places the test fixture in a separate standalone helper method that is accessed by multiple test methods.
These are register versions of the same instructions in AVX1. There is no 128-bit version, but the same effect can be simply achieved using VINSERTF128. VPBROADCASTB, VPBROADCASTW, VPBROADCASTD, VPBROADCASTQ: Copy an 8, 16, 32 or 64-bit integer register or memory operand to all elements of a XMM or YMM vector register. VBROADCASTI128
For each bit in the third operand (which acts as a selector), 1 selects the same bit in the first source, and 0 selects the same in the second source. When used together with the XOP vector comparison instructions above this can be used to implement a vectorized ternary move, or if the second input is the same as the destination, a conditional ...
Vex'ahlia "Vex" de Rolo, a half-elven ranger / rogue character in the 2015 American web series Critical Role where professional voice actors play the role-playing game Dungeons & Dragons; Vex, a mob from Minecraft summoned by Evokers. Vex, The Gloomist, a playable champion character in the MOBA video game League of Legends
64-bit kernel 2.4.x systems have an 8 EB limit for all file systems. 32-bit kernel 2.6.x systems without option CONFIG_LBD have a 2 TB limit for all file systems. 32-bit kernel 2.6.x systems with option CONFIG_LBD and all 64-bit kernel 2.6.x systems have an 8 ZB limit for all file systems. [5]