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LFENCE;BSR RAX,RBX;MOV RAX,0X80000000 on Skylake (more architectures)

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AssemblyLFENCE;BSR RAX,RBX;MOV RAX,0X80000000
Architecture CodenameSkylake
Port Eligibility Instr. 1None
Port Eligibility Instr. 21*p1 (2358 other cmds. with the same port eligibility for instr. 2)
Port Eligibility Instr. 31*p0156 (6662 other cmds. with the same port eligibility for instr. 3)
(650 other cmds. with the same port eligibility for both instr. 2 and instr. 3)
Total Instr. Length (bytes)12
Cutoff 1713 (30 other commands with the same cutoff)
Cutoff 21426
Instruction 1LFENCE
Swap 🔄 Instruction 2 BSR RAX,RBX (444 other commands with the same Instruction 2)
Instruction 3MOV RAX,0X80000000 (444 other commands with the same Instruction 3)
Number of instructions3
Graph Generationpython3 unroll_csv.py -a SKL -asm "LFENCE;BSR RAX,RBX;MOV RAX,0X80000000" && python3 normalize_cycles.py
Length Instruction 1 (bytes)3
Length Instruction 2 (bytes)4
Length Instruction 3 (bytes)5
Regioningtrue
Region Characterization Type30 (420 other commands with the same type)
Element Order Changes Regioning Effecttrue
Element Order Change DescriptionDifferent pattern of Type51

LFENCE;BSR RAX,RBX;MOV RAX,0X80000000 on additional architectures:

Other commands where Cutoff 1 = 713:

30 instructions, click for details

Other commands where Instruction 2 = BSR RAX,RBX:

444 instructions, click for details

Other commands where Instruction 3 = MOV RAX,0X80000000:

444 instructions, click for details

Other commands where Region Characterization = Type30:

420 instructions, click for details

Other commands where the port eligibility for Instruction 2 is 1*p1:

2358 instructions, click for details

Other commands where the port eligibility for Instruction 3 is 1*p0156:

6662 instructions, click for details

Other commands where the port eligibility for Instruction 2 is 1*p1 and for Instruction 3 is 1*p0156: