B FPU Instruction Set Details

FLOOR.L.fmt fd, fs

Description:

The contents of the floating-point register specified by fs are interpreted in the specified source format, fmt, and arithmetically converted to the long fixed-point format. The result is placed in the floating-point register specified by fd.

Regardless of the setting of the current rounding mode, the conversion is rounded as if the current rounding mode is round to - (3).

This instruction is valid only for conversion from single- or double-precision floating-point formats.

When the source operand is an Infinity, NaN, or the correctly rounded integer result is outside of -263 to 263- 1, the Invalid operation exception is raised. If the Invalid operation is not enabled then no exception is taken and 263-1 is returned.

Operation:

Exceptions:

Coprocessor unusable exception
Floating-Point exception

Coprocessor Exceptions:

Invalid operation exception
Unimplemented operation exception
Inexact exception
Overflow exception

Generated with CERN WebMaker