The EVEX prefix (enhanced vector extension) and corresponding coding scheme is an extension to the 32-bit x86 (IA-32) and 64-bit x86-64 (AMD64) instruction...
12 KB (1,123 words) - 20:35, 4 February 2024
Evex may refer to: Esterified estrogens, by brand name EVEX prefix This disambiguation page lists articles associated with the title Evex. If an internal...
104 bytes (42 words) - 12:27, 8 January 2024
with the EVEX prefix, but none of the instructions in those maps are VEX-encodable. The VEX2 prefix is a 2-byte variant of the VEX3 prefix, that differs...
17 KB (1,863 words) - 18:12, 22 May 2024
to add to AVX-512. This has led them to define a new prefix called EVEX. Compared to VEX, EVEX adds the following benefits: Expanded register encoding...
86 KB (4,699 words) - 08:31, 25 August 2024
shipped in 2013. AVX-512 expands AVX to 512-bit support using a new EVEX prefix encoding proposed by Intel in July 2013 and first supported by Intel...
54 KB (4,401 words) - 19:23, 28 August 2024
instructions are encoded with the VEX or EVEX prefixes – on the form VEX.66.0F38 xy /r or EVEX.66.0F38 xy /r. The VEX.W/EVEX.W bit selects floating-point format...
69 KB (1,531 words) - 19:57, 6 August 2024
2-byte REX2 prefix, while new instructions and extended operands for existing AVX/AVX2/AVX-512 instructions are encoded with extended EVEX prefix which has...
104 KB (10,733 words) - 10:00, 29 August 2024
Advanced Performance Extensions, Foundation (adds REX2 and extended EVEX prefix encodings to support 32 GPRs, as well as some new instructions) 21 22...
206 KB (11,794 words) - 11:14, 2 August 2024
floating-point arithmetic instructions that all follow a given pattern where: EVEX.W is used to specify floating-point format (0=FP32, 1=FP64) The bottom opcode...
92 KB (4,340 words) - 04:46, 18 August 2024
condition for the move is not satisfied. (The Intel APX extension defines an EVEX-encoded variant of CMOVcc that will suppress memory exceptions if the condition...
212 KB (12,382 words) - 21:53, 19 August 2024
AVX-512: VCMPxxPD, VCMPxxPS, VCMPxxSD, VCMPxxPD, VCMPxxSS, AVX-512F set, EVEX-encoded instructions added in 2.13; VMOVQ added 2.13, to supplement MOVD...
10 KB (1,090 words) - 21:27, 6 November 2023