STMXCSR (M32) - Port Usage

With blocking instructions for port '3':

Code:

   0:	4d 89 46 40          	mov    QWORD PTR [r14+0x40],r8
   4:	4d 89 46 48          	mov    QWORD PTR [r14+0x48],r8
   8:	4d 89 46 50          	mov    QWORD PTR [r14+0x50],r8
   c:	4d 89 46 58          	mov    QWORD PTR [r14+0x58],r8
  10:	4d 89 46 60          	mov    QWORD PTR [r14+0x60],r8
  14:	4d 89 46 68          	mov    QWORD PTR [r14+0x68],r8
  18:	4d 89 46 70          	mov    QWORD PTR [r14+0x70],r8
  1c:	4d 89 46 78          	mov    QWORD PTR [r14+0x78],r8
  20:	4d 89 86 80 00 00 00 	mov    QWORD PTR [r14+0x80],r8
  27:	4d 89 86 88 00 00 00 	mov    QWORD PTR [r14+0x88],r8
  2e:	41 0f ae 1e          	stmxcsr DWORD PTR [r14]

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.03
- Reference cycles: 10.12
- UOPS_PORT_0: 0.01
- UOPS_PORT_1: 0.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 11.0
- UOPS_PORT_4: 11.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 23.0

⇨ One μop that can only use port '3'

With blocking instructions for port '4':

Code:

   0:	4d 89 46 40          	mov    QWORD PTR [r14+0x40],r8
   4:	4d 89 46 48          	mov    QWORD PTR [r14+0x48],r8
   8:	4d 89 46 50          	mov    QWORD PTR [r14+0x50],r8
   c:	4d 89 46 58          	mov    QWORD PTR [r14+0x58],r8
  10:	4d 89 46 60          	mov    QWORD PTR [r14+0x60],r8
  14:	4d 89 46 68          	mov    QWORD PTR [r14+0x68],r8
  18:	4d 89 46 70          	mov    QWORD PTR [r14+0x70],r8
  1c:	4d 89 46 78          	mov    QWORD PTR [r14+0x78],r8
  20:	4d 89 86 80 00 00 00 	mov    QWORD PTR [r14+0x80],r8
  27:	4d 89 86 88 00 00 00 	mov    QWORD PTR [r14+0x88],r8
  2e:	41 0f ae 1e          	stmxcsr DWORD PTR [r14]

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.03
- Reference cycles: 10.2
- UOPS_PORT_0: 0.01
- UOPS_PORT_1: 0.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 11.0
- UOPS_PORT_4: 11.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 23.0

⇨ One μop that can only use port '4'

With blocking instructions for port '5':

Code:

   0:	66 0f 55 c1          	andnpd xmm0,xmm1
   4:	66 0f 55 d1          	andnpd xmm2,xmm1
   8:	66 0f 55 d9          	andnpd xmm3,xmm1
   c:	66 0f 55 e1          	andnpd xmm4,xmm1
  10:	66 0f 55 e9          	andnpd xmm5,xmm1
  14:	66 0f 55 f1          	andnpd xmm6,xmm1
  18:	66 0f 55 f9          	andnpd xmm7,xmm1
  1c:	66 44 0f 55 c1       	andnpd xmm8,xmm1
  21:	66 44 0f 55 c9       	andnpd xmm9,xmm1
  26:	66 44 0f 55 d1       	andnpd xmm10,xmm1
  2b:	41 0f ae 1e          	stmxcsr DWORD PTR [r14]

Init:

PXOR XMM0, XMM0;
PXOR XMM1, XMM1;
PXOR XMM2, XMM2;
PXOR XMM3, XMM3;
PXOR XMM4, XMM4;
PXOR XMM5, XMM5;
PXOR XMM6, XMM6;
PXOR XMM7, XMM7;
PXOR XMM8, XMM8;
PXOR XMM9, XMM9;
PXOR XMM10, XMM10;
PXOR XMM11, XMM11;
PXOR XMM12, XMM12

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.0
- Reference cycles: 10.16
- UOPS_PORT_0: 0.04
- UOPS_PORT_1: -0.02
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 1.0
- UOPS_PORT_4: 1.0
- UOPS_PORT_5: -0.01
- UOPS_RETIRED.ANY: 13.0

⇨ One μop that can only use port '5'

With an indexed addressing mode

With blocking instructions for port '3':

Code:

   0:	4d 89 46 40          	mov    QWORD PTR [r14+0x40],r8
   4:	4d 89 46 48          	mov    QWORD PTR [r14+0x48],r8
   8:	4d 89 46 50          	mov    QWORD PTR [r14+0x50],r8
   c:	4d 89 46 58          	mov    QWORD PTR [r14+0x58],r8
  10:	4d 89 46 60          	mov    QWORD PTR [r14+0x60],r8
  14:	4d 89 46 68          	mov    QWORD PTR [r14+0x68],r8
  18:	4d 89 46 70          	mov    QWORD PTR [r14+0x70],r8
  1c:	4d 89 46 78          	mov    QWORD PTR [r14+0x78],r8
  20:	4d 89 86 80 00 00 00 	mov    QWORD PTR [r14+0x80],r8
  27:	4d 89 86 88 00 00 00 	mov    QWORD PTR [r14+0x88],r8
  2e:	43 0f ae 1c 2e       	stmxcsr DWORD PTR [r14+r13*1]

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.03
- Reference cycles: 10.16
- UOPS_PORT_0: 0.02
- UOPS_PORT_1: -0.04
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 11.0
- UOPS_PORT_4: 11.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 23.0

⇨ One μop that can only use port '3'

With blocking instructions for port '4':

Code:

   0:	4d 89 46 40          	mov    QWORD PTR [r14+0x40],r8
   4:	4d 89 46 48          	mov    QWORD PTR [r14+0x48],r8
   8:	4d 89 46 50          	mov    QWORD PTR [r14+0x50],r8
   c:	4d 89 46 58          	mov    QWORD PTR [r14+0x58],r8
  10:	4d 89 46 60          	mov    QWORD PTR [r14+0x60],r8
  14:	4d 89 46 68          	mov    QWORD PTR [r14+0x68],r8
  18:	4d 89 46 70          	mov    QWORD PTR [r14+0x70],r8
  1c:	4d 89 46 78          	mov    QWORD PTR [r14+0x78],r8
  20:	4d 89 86 80 00 00 00 	mov    QWORD PTR [r14+0x80],r8
  27:	4d 89 86 88 00 00 00 	mov    QWORD PTR [r14+0x88],r8
  2e:	43 0f ae 1c 2e       	stmxcsr DWORD PTR [r14+r13*1]

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.03
- Reference cycles: 10.16
- UOPS_PORT_0: 0.02
- UOPS_PORT_1: -0.04
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 11.0
- UOPS_PORT_4: 11.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 23.0

⇨ One μop that can only use port '4'

With blocking instructions for port '5':

Code:

   0:	66 0f 55 c1          	andnpd xmm0,xmm1
   4:	66 0f 55 d1          	andnpd xmm2,xmm1
   8:	66 0f 55 d9          	andnpd xmm3,xmm1
   c:	66 0f 55 e1          	andnpd xmm4,xmm1
  10:	66 0f 55 e9          	andnpd xmm5,xmm1
  14:	66 0f 55 f1          	andnpd xmm6,xmm1
  18:	66 0f 55 f9          	andnpd xmm7,xmm1
  1c:	66 44 0f 55 c1       	andnpd xmm8,xmm1
  21:	66 44 0f 55 c9       	andnpd xmm9,xmm1
  26:	66 44 0f 55 d1       	andnpd xmm10,xmm1
  2b:	43 0f ae 1c 2e       	stmxcsr DWORD PTR [r14+r13*1]

Init:

PXOR XMM0, XMM0;
PXOR XMM1, XMM1;
PXOR XMM2, XMM2;
PXOR XMM3, XMM3;
PXOR XMM4, XMM4;
PXOR XMM5, XMM5;
PXOR XMM6, XMM6;
PXOR XMM7, XMM7;
PXOR XMM8, XMM8;
PXOR XMM9, XMM9;
PXOR XMM10, XMM10;
PXOR XMM11, XMM11;
PXOR XMM12, XMM12;
XOR R13, R13

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 10.99
- Reference cycles: 10.12
- UOPS_PORT_0: 0.01
- UOPS_PORT_1: 0.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 1.0
- UOPS_PORT_4: 1.0
- UOPS_PORT_5: -0.05
- UOPS_RETIRED.ANY: 13.0

⇨ One μop that can only use port '5'