MOVZX (R32, M8) - Throughput and Uops (IACA 2.3)
With a non-indexed addressing mode
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 0.50 Cycles Throughput Bottleneck: FrontEnd
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 0.0 | 0.5 0.5 | 0.5 0.5 | 0.0 | 0.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | movzx r8d, byte ptr [r14]
Total Num Of Uops: 1
With 8 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 4.00 Cycles Throughput Bottleneck: Backend. PORT2_AGU, Port2_DATA, PORT3_AGU, Port3_DATA
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 0.0 | 4.0 4.0 | 4.0 4.0 | 0.0 | 0.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | 1.0 1.0 | | | | | | CP | movzx r8d, byte ptr [r14]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx r9d, byte ptr [r14+0x1]
| 1 | | | 1.0 1.0 | | | | | | CP | movzx r10d, byte ptr [r14+0x2]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx r11d, byte ptr [r14+0x3]
| 1 | | | 1.0 1.0 | | | | | | CP | movzx r12d, byte ptr [r14+0x4]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx ebx, byte ptr [r14+0x5]
| 1 | | | 1.0 1.0 | | | | | | CP | movzx ecx, byte ptr [r14+0x6]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx edx, byte ptr [r14+0x7]
Total Num Of Uops: 8
With an indexed addressing mode
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 0.50 Cycles Throughput Bottleneck: FrontEnd
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 0.0 | 0.5 0.5 | 0.5 0.5 | 0.0 | 0.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | 0.5 0.5 | 0.5 0.5 | | | | | CP | movzx r8d, byte ptr [r14+r13*1]
Total Num Of Uops: 1
With 8 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 4.00 Cycles Throughput Bottleneck: Backend. PORT2_AGU, Port2_DATA, PORT3_AGU, Port3_DATA
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 0.0 | 4.0 4.0 | 4.0 4.0 | 0.0 | 0.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | 1.0 1.0 | | | | | | CP | movzx r8d, byte ptr [r14+r13*1]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx r9d, byte ptr [r14+r13*1+0x1]
| 1 | | | 1.0 1.0 | | | | | | CP | movzx r10d, byte ptr [r14+r13*1+0x2]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx r11d, byte ptr [r14+r13*1+0x3]
| 1 | | | 1.0 1.0 | | | | | | CP | movzx r12d, byte ptr [r14+r13*1+0x4]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx ebx, byte ptr [r14+r13*1+0x5]
| 1 | | | 1.0 1.0 | | | | | | CP | movzx ecx, byte ptr [r14+r13*1+0x6]
| 1 | | | | 1.0 1.0 | | | | | CP | movzx edx, byte ptr [r14+r13*1+0x7]
Total Num Of Uops: 8