NAME
npx —
Numeric Processing Extension
coprocessor and emulator
SYNOPSIS
npx0 at isa? port "IO_NPX0" irq
13
DESCRIPTION
Thenpx driver enables the use of the system's Numeric
Processing Extension coprocessor, if one is present. Numeric processing
extensions are present in systems with 486DX CPUs and in systems with 387 or
487SX coprocessors. The npx driver is required for
proper system functioning regardless of whether or not an NPX is present.
SEE ALSO
BUGS
There are lots of them, especially on cheap motherboards. In particular, some motherboards do not have the interrupt lines from the NPX to the CPU wired properly.