BSR (R32, R32)

Experiment 1 (with R9D=0)

Instruction: BSR R8D, R9D

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d

Init:
```
MOV R9D, 0
```
Show nanoBench command
Results:
- MPERF: 3.33
- APERF: 4.0
- UOPS: 6.0

Experiment 2 (with R9D=1)

Instruction: BSR R8D, R9D

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d

Init:
```
MOV R9D, 1
```
Show nanoBench command
Results:
- MPERF: 3.21
- APERF: 4.0
- UOPS: 6.0

Experiment 3 (with R9D=2)

Instruction: BSR R8D, R9D

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d

Init:
```
MOV R9D, 2
```
Show nanoBench command
Results:
- MPERF: 3.27
- APERF: 4.0
- UOPS: 6.0

Experiment 4 (with R9D=0)

Instruction: BSR R8D, R9D
Chain instructions: MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 7

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d
   4:	4d 63 c0             	movsxd r8,r8d
   7:	4d 63 c0             	movsxd r8,r8d
   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

Init:
```
MOV R9D, 0
```
Show nanoBench command
Results:
- MPERF: 8.14
- APERF: 10.0
- UOPS: 13.0

Experiment 5 (with R9D=1)

Instruction: BSR R8D, R9D
Chain instructions: MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 7

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d
   4:	4d 63 c0             	movsxd r8,r8d
   7:	4d 63 c0             	movsxd r8,r8d
   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

Init:
```
MOV R9D, 1
```
Show nanoBench command
Results:
- MPERF: 8.33
- APERF: 10.0
- UOPS: 13.0

Experiment 6 (with R9D=2)

Instruction: BSR R8D, R9D
Chain instructions: MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 7

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d
   4:	4d 63 c0             	movsxd r8,r8d
   7:	4d 63 c0             	movsxd r8,r8d
   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

Init:
```
MOV R9D, 2
```
Show nanoBench command
Results:
- MPERF: 8.14
- APERF: 10.0
- UOPS: 13.0

Experiment 1 (with R9D=0)

Instruction: BSR R8D, R9D
Chain instructions: CMOVZ R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 8

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d
   4:	45 0f 44 ff          	cmove  r15d,r15d
   8:	4d 63 c7             	movsxd r8,r15d
   b:	4d 63 c0             	movsxd r8,r8d
   e:	4d 63 c0             	movsxd r8,r8d
  11:	4d 63 c0             	movsxd r8,r8d
  14:	4d 63 c0             	movsxd r8,r8d
  17:	4d 63 c0             	movsxd r8,r8d
  1a:	4d 63 c0             	movsxd r8,r8d

Init:
```
MOV R9D, 0
```
Show nanoBench command
Results:
- MPERF: 4.13
- APERF: 5.0
- UOPS: 14.0

Experiment 2 (with R9D=1)

Instruction: BSR R8D, R9D
Chain instructions: CMOVZ R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 8

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d
   4:	45 0f 44 ff          	cmove  r15d,r15d
   8:	4d 63 c7             	movsxd r8,r15d
   b:	4d 63 c0             	movsxd r8,r8d
   e:	4d 63 c0             	movsxd r8,r8d
  11:	4d 63 c0             	movsxd r8,r8d
  14:	4d 63 c0             	movsxd r8,r8d
  17:	4d 63 c0             	movsxd r8,r8d
  1a:	4d 63 c0             	movsxd r8,r8d

Init:
```
MOV R9D, 1
```
Show nanoBench command
Results:
- MPERF: 4.19
- APERF: 5.0
- UOPS: 14.0

Experiment 3 (with R9D=2)

Instruction: BSR R8D, R9D
Chain instructions: CMOVZ R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 8

Code:

   0:	45 0f bd c1          	bsr    r8d,r9d
   4:	45 0f 44 ff          	cmove  r15d,r15d
   8:	4d 63 c7             	movsxd r8,r15d
   b:	4d 63 c0             	movsxd r8,r8d
   e:	4d 63 c0             	movsxd r8,r8d
  11:	4d 63 c0             	movsxd r8,r8d
  14:	4d 63 c0             	movsxd r8,r8d
  17:	4d 63 c0             	movsxd r8,r8d
  1a:	4d 63 c0             	movsxd r8,r8d

Init:
```
MOV R9D, 2
```
Show nanoBench command
Results:
- MPERF: 4.13
- APERF: 5.0
- UOPS: 14.0

BSR (R32, R32) - Latency

Operands

Latency operand 1 → 1: 3

Latency operand 1 → 3: 0

Latency operand 2 → 1: 4

Latency operand 2 → 3: 4

Latency operand 1 → 1: 3

Experiment 1 (with R9D=0)

Experiment 2 (with R9D=1)

Experiment 3 (with R9D=2)

Experiment 4 (with R9D=0)

Experiment 5 (with R9D=1)

Experiment 6 (with R9D=2)

Latency operand 1 → 3: 0

Experiment 1 (with R9D=0)

Experiment 2 (with R9D=1)

Experiment 3 (with R9D=2)

Latency operand 2 → 1: 4

Experiment 1

Latency operand 2 → 3: 4

Experiment 1