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The XCHG instruction can be used without the LOCK prefix as well. The XRELEASE prefix hint can be used both with the instructions listed above, and with the MOV mem, reg and MOV mem, imm instructions. HLE allows optimistic execution of a critical section by skipping the write to a lock, so that the lock appears to be free to other threads.
Below is the full 8086/8088 instruction set of Intel (81 instructions total). [2] These instructions are also available in 32-bit mode, in which they operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts.
In order to determine the level of an IMM-element, there are specific dependencies to consider. Dependencies state that other IMM-elements have to have achieved certain levels before the IMM-element in focus can be classified into a specific level. Each implementation process will result in different dependencies among IMM-elements and their ...
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A compressed instruction set, or simply compressed instructions, are a variation on a microprocessor's instruction set architecture (ISA) that allows instructions to be represented in a more compact format. In most real-world examples, compressed instructions are 16 bits long in a processor that would otherwise use 32-bit instructions.
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SIMD instructions operating on 4 x unsigned bytes or 2 x 16-bit values packed into a 32-bit register (the 64-bit variant of the DSP ASE supports larger vectors, too). SIMD operations are basic arithmetic, shifts and some multiply-accumulate type operations. MIPS SIMD architecture (MSA) Instruction set extensions designed to accelerate multimedia.