x86settm
LBT intrinsic · group: x86 FPU
Synopsis
Instruction: x86settm
CPU Flags: LBT
Description
Set x87 FPU stack translation mode: enable TOP-based remapping of FPR registers (bits 0-7 are offset by TOP when TM is set).
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | N/A | 0.14(1/7) |
| 3C6000 | LA664 | N/A | 0.14(1/7) |