DIV (R32)

Experiment 1 (fast division)

Instruction: DIV EBX
Chain instructions: AND EBX, EAX; AND EBX, ECX; OR EBX, ECX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; ; MOV EAX, R8D;MOV EDX, R9D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 c3                	and    ebx,eax
   4:	21 cb                	and    ebx,ecx
   6:	09 cb                	or     ebx,ecx
   8:	09 db                	or     ebx,ebx
   a:	09 db                	or     ebx,ebx
   c:	09 db                	or     ebx,ebx
   e:	09 db                	or     ebx,ebx
  10:	09 db                	or     ebx,ebx
  12:	09 db                	or     ebx,ebx
  14:	09 db                	or     ebx,ebx
  16:	09 db                	or     ebx,ebx
  18:	09 db                	or     ebx,ebx
  1a:	09 db                	or     ebx,ebx
  1c:	09 db                	or     ebx,ebx
  1e:	09 db                	or     ebx,ebx
  20:	09 db                	or     ebx,ebx
  22:	09 db                	or     ebx,ebx
  24:	09 db                	or     ebx,ebx
  26:	09 db                	or     ebx,ebx
  28:	44 89 c0             	mov    eax,r8d
  2b:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 22.68
- APERF: 27.15
- UOPS: 23.0

Experiment 2 (slow division)

Instruction: DIV EBX
Chain instructions: AND EBX, EAX; AND EBX, ECX; OR EBX, ECX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; ; MOV EAX, R8D;MOV EDX, R9D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 c3                	and    ebx,eax
   4:	21 cb                	and    ebx,ecx
   6:	09 cb                	or     ebx,ecx
   8:	09 db                	or     ebx,ebx
   a:	09 db                	or     ebx,ebx
   c:	09 db                	or     ebx,ebx
   e:	09 db                	or     ebx,ebx
  10:	09 db                	or     ebx,ebx
  12:	09 db                	or     ebx,ebx
  14:	09 db                	or     ebx,ebx
  16:	09 db                	or     ebx,ebx
  18:	09 db                	or     ebx,ebx
  1a:	09 db                	or     ebx,ebx
  1c:	09 db                	or     ebx,ebx
  1e:	09 db                	or     ebx,ebx
  20:	09 db                	or     ebx,ebx
  22:	09 db                	or     ebx,ebx
  24:	09 db                	or     ebx,ebx
  26:	09 db                	or     ebx,ebx
  28:	44 89 c0             	mov    eax,r8d
  2b:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 133;
MOV R9, 0x343a9ed7;
MOV RCX, 0x75e6e44f;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 35.28
- APERF: 42.19
- UOPS: 23.0

Latency operand 1 → 3: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Instruction: DIV EBX
Chain instructions: AND EBX, EDX; AND EBX, ECX; OR EBX, ECX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; ; MOV EAX, R8D;MOV EDX, R9D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 d3                	and    ebx,edx
   4:	21 cb                	and    ebx,ecx
   6:	09 cb                	or     ebx,ecx
   8:	09 db                	or     ebx,ebx
   a:	09 db                	or     ebx,ebx
   c:	09 db                	or     ebx,ebx
   e:	09 db                	or     ebx,ebx
  10:	09 db                	or     ebx,ebx
  12:	09 db                	or     ebx,ebx
  14:	09 db                	or     ebx,ebx
  16:	09 db                	or     ebx,ebx
  18:	09 db                	or     ebx,ebx
  1a:	09 db                	or     ebx,ebx
  1c:	09 db                	or     ebx,ebx
  1e:	09 db                	or     ebx,ebx
  20:	09 db                	or     ebx,ebx
  22:	09 db                	or     ebx,ebx
  24:	09 db                	or     ebx,ebx
  26:	09 db                	or     ebx,ebx
  28:	44 89 c0             	mov    eax,r8d
  2b:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 24.12
- APERF: 29.0
- UOPS: 23.0

Experiment 2 (slow division)

Instruction: DIV EBX
Chain instructions: AND EBX, EDX; AND EBX, ECX; OR EBX, ECX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; OR EBX, EBX; ; MOV EAX, R8D;MOV EDX, R9D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 d3                	and    ebx,edx
   4:	21 cb                	and    ebx,ecx
   6:	09 cb                	or     ebx,ecx
   8:	09 db                	or     ebx,ebx
   a:	09 db                	or     ebx,ebx
   c:	09 db                	or     ebx,ebx
   e:	09 db                	or     ebx,ebx
  10:	09 db                	or     ebx,ebx
  12:	09 db                	or     ebx,ebx
  14:	09 db                	or     ebx,ebx
  16:	09 db                	or     ebx,ebx
  18:	09 db                	or     ebx,ebx
  1a:	09 db                	or     ebx,ebx
  1c:	09 db                	or     ebx,ebx
  1e:	09 db                	or     ebx,ebx
  20:	09 db                	or     ebx,ebx
  22:	09 db                	or     ebx,ebx
  24:	09 db                	or     ebx,ebx
  26:	09 db                	or     ebx,ebx
  28:	44 89 c0             	mov    eax,r8d
  2b:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 133;
MOV R9, 0x343a9ed7;
MOV RCX, 0x75e6e44f;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 37.08
- APERF: 44.0
- UOPS: 23.0

Latency operand 2 → 2: 8 ≤ lat ≤ 23

Experiment 1 (fast division)

Instruction: DIV EBX
Chain instructions: AND EAX, R8D; OR EAX, R8D; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; ; MOV EDX, R9D
Chain latency: 18

Code:

   0:	f7 f3                	div    ebx
   2:	44 21 c0             	and    eax,r8d
   5:	44 09 c0             	or     eax,r8d
   8:	09 c0                	or     eax,eax
   a:	09 c0                	or     eax,eax
   c:	09 c0                	or     eax,eax
   e:	09 c0                	or     eax,eax
  10:	09 c0                	or     eax,eax
  12:	09 c0                	or     eax,eax
  14:	09 c0                	or     eax,eax
  16:	09 c0                	or     eax,eax
  18:	09 c0                	or     eax,eax
  1a:	09 c0                	or     eax,eax
  1c:	09 c0                	or     eax,eax
  1e:	09 c0                	or     eax,eax
  20:	09 c0                	or     eax,eax
  22:	09 c0                	or     eax,eax
  24:	09 c0                	or     eax,eax
  26:	09 c0                	or     eax,eax
  28:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 21.96
- APERF: 26.08
- UOPS: 21.0

Experiment 2 (slow division)

Instruction: DIV EBX
Chain instructions: AND EAX, R8D; OR EAX, R8D; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; ; MOV EDX, R9D
Chain latency: 18

Code:

   0:	f7 f3                	div    ebx
   2:	44 21 c0             	and    eax,r8d
   5:	44 09 c0             	or     eax,r8d
   8:	09 c0                	or     eax,eax
   a:	09 c0                	or     eax,eax
   c:	09 c0                	or     eax,eax
   e:	09 c0                	or     eax,eax
  10:	09 c0                	or     eax,eax
  12:	09 c0                	or     eax,eax
  14:	09 c0                	or     eax,eax
  16:	09 c0                	or     eax,eax
  18:	09 c0                	or     eax,eax
  1a:	09 c0                	or     eax,eax
  1c:	09 c0                	or     eax,eax
  1e:	09 c0                	or     eax,eax
  20:	09 c0                	or     eax,eax
  22:	09 c0                	or     eax,eax
  24:	09 c0                	or     eax,eax
  26:	09 c0                	or     eax,eax
  28:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 133;
MOV R9, 0x343a9ed7;
MOV RCX, 0x75e6e44f;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 34.68
- APERF: 41.09
- UOPS: 21.0

Latency operand 2 → 3: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Instruction: DIV EBX
Chain instructions: AND EAX, EDX; AND EAX, R8D; OR EAX, R8D; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; ; MOV EDX, R9D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 d0                	and    eax,edx
   4:	44 21 c0             	and    eax,r8d
   7:	44 09 c0             	or     eax,r8d
   a:	09 c0                	or     eax,eax
   c:	09 c0                	or     eax,eax
   e:	09 c0                	or     eax,eax
  10:	09 c0                	or     eax,eax
  12:	09 c0                	or     eax,eax
  14:	09 c0                	or     eax,eax
  16:	09 c0                	or     eax,eax
  18:	09 c0                	or     eax,eax
  1a:	09 c0                	or     eax,eax
  1c:	09 c0                	or     eax,eax
  1e:	09 c0                	or     eax,eax
  20:	09 c0                	or     eax,eax
  22:	09 c0                	or     eax,eax
  24:	09 c0                	or     eax,eax
  26:	09 c0                	or     eax,eax
  28:	09 c0                	or     eax,eax
  2a:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 24.48
- APERF: 29.0
- UOPS: 22.0

Experiment 2 (slow division)

Instruction: DIV EBX
Chain instructions: AND EAX, EDX; AND EAX, R8D; OR EAX, R8D; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; OR EAX, EAX; ; MOV EDX, R9D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 d0                	and    eax,edx
   4:	44 21 c0             	and    eax,r8d
   7:	44 09 c0             	or     eax,r8d
   a:	09 c0                	or     eax,eax
   c:	09 c0                	or     eax,eax
   e:	09 c0                	or     eax,eax
  10:	09 c0                	or     eax,eax
  12:	09 c0                	or     eax,eax
  14:	09 c0                	or     eax,eax
  16:	09 c0                	or     eax,eax
  18:	09 c0                	or     eax,eax
  1a:	09 c0                	or     eax,eax
  1c:	09 c0                	or     eax,eax
  1e:	09 c0                	or     eax,eax
  20:	09 c0                	or     eax,eax
  22:	09 c0                	or     eax,eax
  24:	09 c0                	or     eax,eax
  26:	09 c0                	or     eax,eax
  28:	09 c0                	or     eax,eax
  2a:	44 89 ca             	mov    edx,r9d

Init:

MOV R8, 133;
MOV R9, 0x343a9ed7;
MOV RCX, 0x75e6e44f;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 37.08
- APERF: 44.0
- UOPS: 22.0

Latency operand 3 → 2: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Instruction: DIV EBX
Chain instructions: AND EDX, EAX; AND EDX, R9D; OR EDX, R9D; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; ; MOV EAX, R8D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 c2                	and    edx,eax
   4:	44 21 ca             	and    edx,r9d
   7:	44 09 ca             	or     edx,r9d
   a:	09 d2                	or     edx,edx
   c:	09 d2                	or     edx,edx
   e:	09 d2                	or     edx,edx
  10:	09 d2                	or     edx,edx
  12:	09 d2                	or     edx,edx
  14:	09 d2                	or     edx,edx
  16:	09 d2                	or     edx,edx
  18:	09 d2                	or     edx,edx
  1a:	09 d2                	or     edx,edx
  1c:	09 d2                	or     edx,edx
  1e:	09 d2                	or     edx,edx
  20:	09 d2                	or     edx,edx
  22:	09 d2                	or     edx,edx
  24:	09 d2                	or     edx,edx
  26:	09 d2                	or     edx,edx
  28:	09 d2                	or     edx,edx
  2a:	44 89 c0             	mov    eax,r8d

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 24.42
- APERF: 29.0
- UOPS: 22.0

Experiment 2 (slow division)

Instruction: DIV EBX
Chain instructions: AND EDX, EAX; AND EDX, R9D; OR EDX, R9D; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; ; MOV EAX, R8D
Chain latency: 19

Code:

   0:	f7 f3                	div    ebx
   2:	21 c2                	and    edx,eax
   4:	44 21 ca             	and    edx,r9d
   7:	44 09 ca             	or     edx,r9d
   a:	09 d2                	or     edx,edx
   c:	09 d2                	or     edx,edx
   e:	09 d2                	or     edx,edx
  10:	09 d2                	or     edx,edx
  12:	09 d2                	or     edx,edx
  14:	09 d2                	or     edx,edx
  16:	09 d2                	or     edx,edx
  18:	09 d2                	or     edx,edx
  1a:	09 d2                	or     edx,edx
  1c:	09 d2                	or     edx,edx
  1e:	09 d2                	or     edx,edx
  20:	09 d2                	or     edx,edx
  22:	09 d2                	or     edx,edx
  24:	09 d2                	or     edx,edx
  26:	09 d2                	or     edx,edx
  28:	09 d2                	or     edx,edx
  2a:	44 89 c0             	mov    eax,r8d

Init:

MOV R8, 133;
MOV R9, 0x343a9ed7;
MOV RCX, 0x75e6e44f;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 37.08
- APERF: 44.0
- UOPS: 22.0

Latency operand 3 → 3: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Instruction: DIV EBX
Chain instructions: AND EDX, R9D; OR EDX, R9D; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; ; MOV EAX, R8D
Chain latency: 18

Code:

   0:	f7 f3                	div    ebx
   2:	44 21 ca             	and    edx,r9d
   5:	44 09 ca             	or     edx,r9d
   8:	09 d2                	or     edx,edx
   a:	09 d2                	or     edx,edx
   c:	09 d2                	or     edx,edx
   e:	09 d2                	or     edx,edx
  10:	09 d2                	or     edx,edx
  12:	09 d2                	or     edx,edx
  14:	09 d2                	or     edx,edx
  16:	09 d2                	or     edx,edx
  18:	09 d2                	or     edx,edx
  1a:	09 d2                	or     edx,edx
  1c:	09 d2                	or     edx,edx
  1e:	09 d2                	or     edx,edx
  20:	09 d2                	or     edx,edx
  22:	09 d2                	or     edx,edx
  24:	09 d2                	or     edx,edx
  26:	09 d2                	or     edx,edx
  28:	44 89 c0             	mov    eax,r8d

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 23.46
- APERF: 27.99
- UOPS: 21.0

Experiment 2 (slow division)

Instruction: DIV EBX
Chain instructions: AND EDX, R9D; OR EDX, R9D; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; OR EDX, EDX; ; MOV EAX, R8D
Chain latency: 18

Code:

   0:	f7 f3                	div    ebx
   2:	44 21 ca             	and    edx,r9d
   5:	44 09 ca             	or     edx,r9d
   8:	09 d2                	or     edx,edx
   a:	09 d2                	or     edx,edx
   c:	09 d2                	or     edx,edx
   e:	09 d2                	or     edx,edx
  10:	09 d2                	or     edx,edx
  12:	09 d2                	or     edx,edx
  14:	09 d2                	or     edx,edx
  16:	09 d2                	or     edx,edx
  18:	09 d2                	or     edx,edx
  1a:	09 d2                	or     edx,edx
  1c:	09 d2                	or     edx,edx
  1e:	09 d2                	or     edx,edx
  20:	09 d2                	or     edx,edx
  22:	09 d2                	or     edx,edx
  24:	09 d2                	or     edx,edx
  26:	09 d2                	or     edx,edx
  28:	44 89 c0             	mov    eax,r8d

Init:

MOV R8, 133;
MOV R9, 0x343a9ed7;
MOV RCX, 0x75e6e44f;
MOV EBX, ECX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 36.0
- APERF: 42.99
- UOPS: 21.0

DIV (R32) - Latency

Operands

Latency operand 1 → 2: 8 ≤ lat ≤ 23

Latency operand 1 → 3: 10 ≤ lat ≤ 25

Latency operand 2 → 2: 8 ≤ lat ≤ 23

Latency operand 2 → 3: 10 ≤ lat ≤ 25

Latency operand 3 → 2: 10 ≤ lat ≤ 25

Latency operand 3 → 3: 10 ≤ lat ≤ 25

Latency operand 1 → 2: 8 ≤ lat ≤ 23

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 1 → 3: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 2 → 2: 8 ≤ lat ≤ 23

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 2 → 3: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 3 → 2: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 3 → 3: 10 ≤ lat ≤ 25

Experiment 1 (fast division)

Experiment 2 (slow division)