DIV (R16)

Experiment 1 (fast division)

Instruction: DIV BX
Chain instructions: AND BX, AX; AND BX, CX; OR BX, CX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; ; MOV AX, R8W;MOV DX, R9W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 c3             	and    bx,ax
   6:	66 21 cb             	and    bx,cx
   9:	66 09 cb             	or     bx,cx
   c:	66 09 db             	or     bx,bx
   f:	66 09 db             	or     bx,bx
  12:	66 09 db             	or     bx,bx
  15:	66 09 db             	or     bx,bx
  18:	66 09 db             	or     bx,bx
  1b:	66 09 db             	or     bx,bx
  1e:	66 44 89 c0          	mov    ax,r8w
  22:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.17
- APERF: 19.02
- UOPS: 13.0

Experiment 2 (slow division)

Instruction: DIV BX
Chain instructions: AND BX, AX; AND BX, CX; OR BX, CX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; ; MOV AX, R8W;MOV DX, R9W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 c3             	and    bx,ax
   6:	66 21 cb             	and    bx,cx
   9:	66 09 cb             	or     bx,cx
   c:	66 09 db             	or     bx,bx
   f:	66 09 db             	or     bx,bx
  12:	66 09 db             	or     bx,bx
  15:	66 09 db             	or     bx,bx
  18:	66 09 db             	or     bx,bx
  1b:	66 09 db             	or     bx,bx
  1e:	66 44 89 c0          	mov    ax,r8w
  22:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 133;
MOV R9, 0x343a;
MOV RCX, 0x75e6;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.68
- APERF: 20.02
- UOPS: 13.0

Latency operand 1 → 3: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Instruction: DIV BX
Chain instructions: AND BX, DX; AND BX, CX; OR BX, CX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; ; MOV AX, R8W;MOV DX, R9W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 d3             	and    bx,dx
   6:	66 21 cb             	and    bx,cx
   9:	66 09 cb             	or     bx,cx
   c:	66 09 db             	or     bx,bx
   f:	66 09 db             	or     bx,bx
  12:	66 09 db             	or     bx,bx
  15:	66 09 db             	or     bx,bx
  18:	66 09 db             	or     bx,bx
  1b:	66 09 db             	or     bx,bx
  1e:	66 44 89 c0          	mov    ax,r8w
  22:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.05
- APERF: 19.02
- UOPS: 13.0

Experiment 2 (slow division)

Instruction: DIV BX
Chain instructions: AND BX, DX; AND BX, CX; OR BX, CX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; OR BX, BX; ; MOV AX, R8W;MOV DX, R9W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 d3             	and    bx,dx
   6:	66 21 cb             	and    bx,cx
   9:	66 09 cb             	or     bx,cx
   c:	66 09 db             	or     bx,bx
   f:	66 09 db             	or     bx,bx
  12:	66 09 db             	or     bx,bx
  15:	66 09 db             	or     bx,bx
  18:	66 09 db             	or     bx,bx
  1b:	66 09 db             	or     bx,bx
  1e:	66 44 89 c0          	mov    ax,r8w
  22:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 133;
MOV R9, 0x343a;
MOV RCX, 0x75e6;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.68
- APERF: 20.02
- UOPS: 13.0

Latency operand 2 → 2: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Instruction: DIV BX
Chain instructions: AND AX, R8W; OR AX, R8W; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; ; MOV DX, R9W
Chain latency: 8

Code:

   0:	66 f7 f3             	div    bx
   3:	66 44 21 c0          	and    ax,r8w
   7:	66 44 09 c0          	or     ax,r8w
   b:	66 09 c0             	or     ax,ax
   e:	66 09 c0             	or     ax,ax
  11:	66 09 c0             	or     ax,ax
  14:	66 09 c0             	or     ax,ax
  17:	66 09 c0             	or     ax,ax
  1a:	66 09 c0             	or     ax,ax
  1d:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 12.41
- APERF: 18.0
- UOPS: 11.0

Experiment 2 (slow division)

Instruction: DIV BX
Chain instructions: AND AX, R8W; OR AX, R8W; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; ; MOV DX, R9W
Chain latency: 8

Code:

   0:	66 f7 f3             	div    bx
   3:	66 44 21 c0          	and    ax,r8w
   7:	66 44 09 c0          	or     ax,r8w
   b:	66 09 c0             	or     ax,ax
   e:	66 09 c0             	or     ax,ax
  11:	66 09 c0             	or     ax,ax
  14:	66 09 c0             	or     ax,ax
  17:	66 09 c0             	or     ax,ax
  1a:	66 09 c0             	or     ax,ax
  1d:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 133;
MOV R9, 0x343a;
MOV RCX, 0x75e6;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.05
- APERF: 19.0
- UOPS: 11.0

Latency operand 2 → 3: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Instruction: DIV BX
Chain instructions: AND AX, DX; AND AX, R8W; OR AX, R8W; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; ; MOV DX, R9W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 d0             	and    ax,dx
   6:	66 44 21 c0          	and    ax,r8w
   a:	66 44 09 c0          	or     ax,r8w
   e:	66 09 c0             	or     ax,ax
  11:	66 09 c0             	or     ax,ax
  14:	66 09 c0             	or     ax,ax
  17:	66 09 c0             	or     ax,ax
  1a:	66 09 c0             	or     ax,ax
  1d:	66 09 c0             	or     ax,ax
  20:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 12.86
- APERF: 19.0
- UOPS: 12.0

Experiment 2 (slow division)

Instruction: DIV BX
Chain instructions: AND AX, DX; AND AX, R8W; OR AX, R8W; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; OR AX, AX; ; MOV DX, R9W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 d0             	and    ax,dx
   6:	66 44 21 c0          	and    ax,r8w
   a:	66 44 09 c0          	or     ax,r8w
   e:	66 09 c0             	or     ax,ax
  11:	66 09 c0             	or     ax,ax
  14:	66 09 c0             	or     ax,ax
  17:	66 09 c0             	or     ax,ax
  1a:	66 09 c0             	or     ax,ax
  1d:	66 09 c0             	or     ax,ax
  20:	66 44 89 ca          	mov    dx,r9w

Init:

MOV R8, 133;
MOV R9, 0x343a;
MOV RCX, 0x75e6;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.68
- APERF: 19.99
- UOPS: 12.0

Latency operand 3 → 2: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Instruction: DIV BX
Chain instructions: AND DX, AX; AND DX, R9W; OR DX, R9W; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; ; MOV AX, R8W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 c2             	and    dx,ax
   6:	66 44 21 ca          	and    dx,r9w
   a:	66 44 09 ca          	or     dx,r9w
   e:	66 09 d2             	or     dx,dx
  11:	66 09 d2             	or     dx,dx
  14:	66 09 d2             	or     dx,dx
  17:	66 09 d2             	or     dx,dx
  1a:	66 09 d2             	or     dx,dx
  1d:	66 09 d2             	or     dx,dx
  20:	66 44 89 c0          	mov    ax,r8w

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.05
- APERF: 18.99
- UOPS: 12.0

Experiment 2 (slow division)

Instruction: DIV BX
Chain instructions: AND DX, AX; AND DX, R9W; OR DX, R9W; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; ; MOV AX, R8W
Chain latency: 9

Code:

   0:	66 f7 f3             	div    bx
   3:	66 21 c2             	and    dx,ax
   6:	66 44 21 ca          	and    dx,r9w
   a:	66 44 09 ca          	or     dx,r9w
   e:	66 09 d2             	or     dx,dx
  11:	66 09 d2             	or     dx,dx
  14:	66 09 d2             	or     dx,dx
  17:	66 09 d2             	or     dx,dx
  1a:	66 09 d2             	or     dx,dx
  1d:	66 09 d2             	or     dx,dx
  20:	66 44 89 c0          	mov    ax,r8w

Init:

MOV R8, 133;
MOV R9, 0x343a;
MOV RCX, 0x75e6;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.68
- APERF: 20.02
- UOPS: 12.0

Latency operand 3 → 3: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Instruction: DIV BX
Chain instructions: AND DX, R9W; OR DX, R9W; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; ; MOV AX, R8W
Chain latency: 8

Code:

   0:	66 f7 f3             	div    bx
   3:	66 44 21 ca          	and    dx,r9w
   7:	66 44 09 ca          	or     dx,r9w
   b:	66 09 d2             	or     dx,dx
   e:	66 09 d2             	or     dx,dx
  11:	66 09 d2             	or     dx,dx
  14:	66 09 d2             	or     dx,dx
  17:	66 09 d2             	or     dx,dx
  1a:	66 09 d2             	or     dx,dx
  1d:	66 44 89 c0          	mov    ax,r8w

Init:

MOV R8, 0;
MOV R9, 0;
MOV RCX, 1;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 12.22
- APERF: 18.0
- UOPS: 11.0

Experiment 2 (slow division)

Instruction: DIV BX
Chain instructions: AND DX, R9W; OR DX, R9W; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; OR DX, DX; ; MOV AX, R8W
Chain latency: 8

Code:

   0:	66 f7 f3             	div    bx
   3:	66 44 21 ca          	and    dx,r9w
   7:	66 44 09 ca          	or     dx,r9w
   b:	66 09 d2             	or     dx,dx
   e:	66 09 d2             	or     dx,dx
  11:	66 09 d2             	or     dx,dx
  14:	66 09 d2             	or     dx,dx
  17:	66 09 d2             	or     dx,dx
  1a:	66 09 d2             	or     dx,dx
  1d:	66 44 89 c0          	mov    ax,r8w

Init:

MOV R8, 133;
MOV R9, 0x343a;
MOV RCX, 0x75e6;
MOV BX, CX;
MOV RAX, R8;
MOV RDX, R9

Show nanoBench command
Results:
- MPERF: 13.05
- APERF: 19.0
- UOPS: 11.0

DIV (R16) - Latency

Operands

Latency operand 1 → 2: 10 ≤ lat ≤ 11

Latency operand 1 → 3: 10 ≤ lat ≤ 11

Latency operand 2 → 2: 10 ≤ lat ≤ 11

Latency operand 2 → 3: 10 ≤ lat ≤ 11

Latency operand 3 → 2: 10 ≤ lat ≤ 11

Latency operand 3 → 3: 10 ≤ lat ≤ 11

Latency operand 1 → 2: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 1 → 3: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 2 → 2: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 2 → 3: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 3 → 2: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Experiment 2 (slow division)

Latency operand 3 → 3: 10 ≤ lat ≤ 11

Experiment 1 (fast division)

Experiment 2 (slow division)