This content has not been validated; it was AI-generated following the x86-64 ISA Documentation generation process to maintain high quality. However, as no human has verified this data, errors may exist. If the accuracy of this data is critical, please consult the Intel SDM. The model used to generate this is gemma4:31b
SUBPS
Subtracts four single-precision floating-point numbers from another set of four single-precision floating-point numbers and stores the results.
The following table covers what the source and destinations can be:
| Source | Destination(s) |
|---|---|
| xmm reg | xmm reg |
| m128 | xmm reg |
DO NOT support LOCK
This instruction requires SSE support. It is available in both 64-bit mode and compatibility mode.
The operation is performed based on the rounding mode specified in the MXCSR register. If any input operand is a signaling NaN, a #O exception MAY be generated depending on the floating-point environment.
To avoid precision loss or unexpected behavior, ensure that the memory operands are aligned on 16-byte boundaries; otherwise, a general protection fault MAY occur or performance SHALL be degraded depending on the processor implementation. All elements must be valid single-precision floating-point numbers to avoid #I.