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LFENCE;MOVZX RAX,AX;DEC RAX on Sandy Bridge (more architectures)

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AssemblyLFENCE;MOVZX RAX,AX;DEC RAX
Architecture CodenameSandy Bridge
Port Eligibility Instr. 1None
Port Eligibility Instr. 21*p015 (3019 other cmds. with the same port eligibility for instr. 2)
Port Eligibility Instr. 31*p015 (3019 other cmds. with the same port eligibility for instr. 3)
(883 other cmds. with the same port eligibility for both instr. 2 and instr. 3)
Total Instr. Length (bytes)10
Cutoff 12851 (45 other commands with the same cutoff)
Cutoff 25697
Instruction 1LFENCE
Swap 🔄 Instruction 2 MOVZX RAX,AX (444 other commands with the same Instruction 2)
Instruction 3DEC RAX (444 other commands with the same Instruction 3)
Number of instructions3
Graph Generationpython3 unroll_csv.py -a SNB -asm "LFENCE;MOVZX RAX,AX;DEC RAX" && python3 normalize_cycles.py
Length Instruction 1 (bytes)3
Length Instruction 2 (bytes)4
Length Instruction 3 (bytes)3
Regioningtrue
Region Characterization Type21 (472 other commands with the same type)
Element Order Changes Regioning Effecttrue
Element Order Change DescriptionDifferent pattern of Type20

LFENCE;MOVZX RAX,AX;DEC RAX on additional architectures:

Other commands where Cutoff 1 = 2851:

45 instructions, click for details

Other commands where Instruction 2 = MOVZX RAX,AX:

444 instructions, click for details

Other commands where Instruction 3 = DEC RAX:

444 instructions, click for details

Other commands where Region Characterization = Type21:

472 instructions, click for details

Other commands where the port eligibility for Instruction 2 is 1*p015:

3019 instructions, click for details

Other commands where the port eligibility for Instruction 3 is 1*p015:

3019 instructions, click for details

Other commands where the port eligibility for Instruction 2 is 1*p015 and for Instruction 3 is 1*p015: