TZCNT (R16, R16)

Experiment 1 (with R9W=0)

Instruction: TZCNT R8W, R9W

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w

Init:
```
MOV R9W, 0
```
Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 3.03
- Reference cycles: 0.93
- UOPS_EXECUTED.THREAD: 0.96

Experiment 2 (with R9W=1)

Instruction: TZCNT R8W, R9W

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w

Init:
```
MOV R9W, 1
```
Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 3.03
- Reference cycles: 0.93
- UOPS_EXECUTED.THREAD: 0.96

Experiment 3 (with R9W=2)

Instruction: TZCNT R8W, R9W

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w

Init:
```
MOV R9W, 2
```
Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 3.03
- Reference cycles: 0.93
- UOPS_EXECUTED.THREAD: 0.96

Experiment 4 (with R9W=0)

Instruction: TZCNT R8W, R9W
Chain instructions: MOVSX R8, R8W;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 7

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	4d 0f bf c0          	movsx  r8,r8w
   a:	4d 63 c0             	movsxd r8,r8d
   d:	4d 63 c0             	movsxd r8,r8d
  10:	4d 63 c0             	movsxd r8,r8d
  13:	4d 63 c0             	movsxd r8,r8d
  16:	4d 63 c0             	movsxd r8,r8d
  19:	4d 63 c0             	movsxd r8,r8d

Init:
```
MOV R9W, 0
```
Show nanoBench command
Results:
- Instructions retired: 8.0
- Core cycles: 10.0
- Reference cycles: 3.26
- UOPS_EXECUTED.THREAD: 8.0

Experiment 5 (with R9W=1)

Instruction: TZCNT R8W, R9W
Chain instructions: MOVSX R8, R8W;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 7

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	4d 0f bf c0          	movsx  r8,r8w
   a:	4d 63 c0             	movsxd r8,r8d
   d:	4d 63 c0             	movsxd r8,r8d
  10:	4d 63 c0             	movsxd r8,r8d
  13:	4d 63 c0             	movsxd r8,r8d
  16:	4d 63 c0             	movsxd r8,r8d
  19:	4d 63 c0             	movsxd r8,r8d

Init:
```
MOV R9W, 1
```
Show nanoBench command
Results:
- Instructions retired: 8.0
- Core cycles: 10.01
- Reference cycles: 3.31
- UOPS_EXECUTED.THREAD: 8.0

Experiment 6 (with R9W=2)

Instruction: TZCNT R8W, R9W
Chain instructions: MOVSX R8, R8W;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 7

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	4d 0f bf c0          	movsx  r8,r8w
   a:	4d 63 c0             	movsxd r8,r8d
   d:	4d 63 c0             	movsxd r8,r8d
  10:	4d 63 c0             	movsxd r8,r8d
  13:	4d 63 c0             	movsxd r8,r8d
  16:	4d 63 c0             	movsxd r8,r8d
  19:	4d 63 c0             	movsxd r8,r8d

Init:
```
MOV R9W, 2
```
Show nanoBench command
Results:
- Instructions retired: 8.0
- Core cycles: 10.01
- Reference cycles: 3.26
- UOPS_EXECUTED.THREAD: 8.0

Latency operand 1 → 3: 3

Experiment 1 (with R9W=0)

Instruction: TZCNT R8W, R9W
Chain instructions: CMOVZ R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	66 45 0f 44 ff       	cmove  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Init:
```
MOV R9W, 0
```
Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 11.0
- Reference cycles: 3.57
- UOPS_EXECUTED.THREAD: 9.0

Experiment 2 (with R9W=1)

Instruction: TZCNT R8W, R9W
Chain instructions: CMOVZ R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	66 45 0f 44 ff       	cmove  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Init:
```
MOV R9W, 1
```
Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 11.0
- Reference cycles: 3.57
- UOPS_EXECUTED.THREAD: 9.0

Experiment 3 (with R9W=2)

Instruction: TZCNT R8W, R9W
Chain instructions: CMOVZ R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	66 45 0f 44 ff       	cmove  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Init:
```
MOV R9W, 2
```
Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 11.0
- Reference cycles: 3.62
- UOPS_EXECUTED.THREAD: 9.0

Experiment 4 (with R9W=0)

Instruction: TZCNT R8W, R9W
Chain instructions: CMOVC R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	66 45 0f 42 ff       	cmovb  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Init:
```
MOV R9W, 0
```
Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 10.99
- Reference cycles: 3.57
- UOPS_EXECUTED.THREAD: 9.0

Experiment 5 (with R9W=1)

Instruction: TZCNT R8W, R9W
Chain instructions: CMOVC R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	66 45 0f 42 ff       	cmovb  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Init:
```
MOV R9W, 1
```
Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 10.99
- Reference cycles: 3.57
- UOPS_EXECUTED.THREAD: 9.0

Experiment 6 (with R9W=2)

Instruction: TZCNT R8W, R9W
Chain instructions: CMOVC R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c1    	tzcnt  r8w,r9w
   6:	66 45 0f 42 ff       	cmovb  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Init:
```
MOV R9W, 2
```
Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 10.99
- Reference cycles: 3.57
- UOPS_EXECUTED.THREAD: 9.0

Latency operand 2 → 1: 3

Latency operand 2 → 3: 3

Experiment 1

Instruction: TZCNT R9W, R8W
Chain instructions: CMOVZ R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c8    	tzcnt  r9w,r8w
   6:	66 45 0f 44 ff       	cmove  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 10.99
- Reference cycles: 3.67
- UOPS_EXECUTED.THREAD: 9.0

Experiment 2

Instruction: TZCNT R9W, R8W
Chain instructions: CMOVC R15W, R15W;MOVSX R8, R15W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W;MOVSX R8, R8W
Chain latency: 8

Code:

   0:	66 f3 45 0f bc c8    	tzcnt  r9w,r8w
   6:	66 45 0f 42 ff       	cmovb  r15w,r15w
   b:	4d 0f bf c7          	movsx  r8,r15w
   f:	4d 0f bf c0          	movsx  r8,r8w
  13:	4d 0f bf c0          	movsx  r8,r8w
  17:	4d 0f bf c0          	movsx  r8,r8w
  1b:	4d 0f bf c0          	movsx  r8,r8w
  1f:	4d 0f bf c0          	movsx  r8,r8w
  23:	4d 0f bf c0          	movsx  r8,r8w

Show nanoBench command
Results:
- Instructions retired: 9.0
- Core cycles: 11.0
- Reference cycles: 3.57
- UOPS_EXECUTED.THREAD: 9.0

TZCNT (R16, R16) - Latency

Operands

Latency operand 1 → 1: 3

Latency operand 1 → 3: 3

Latency operand 2 → 1: 3

Latency operand 2 → 3: 3

Latency operand 1 → 1: 3

Experiment 1 (with R9W=0)

Experiment 2 (with R9W=1)

Experiment 3 (with R9W=2)

Experiment 4 (with R9W=0)

Experiment 5 (with R9W=1)

Experiment 6 (with R9W=2)

Latency operand 1 → 3: 3

Experiment 1 (with R9W=0)

Experiment 2 (with R9W=1)

Experiment 3 (with R9W=2)

Experiment 4 (with R9W=0)

Experiment 5 (with R9W=1)

Experiment 6 (with R9W=2)

Latency operand 2 → 1: 3

Experiment 1

Latency operand 2 → 3: 3

Experiment 1

Experiment 2