Sun 4/110 FPU
Paul V. O'Neill
pvo1478 at oce.orst.edu
Wed Feb 1 04:04:29 AEST 1989
>Ruth Milner (v7n114) reports all Sun 4's come with FPU's.
Sorry, this is totally wrong. FPU for a 4/110 is optional and simulation
of a missing FPU is in the kernel (which is why you don't have any -fxxx
options.)
To see if you have an FPU installed:
"time program_name"
Assuming program_name has a lot of floating point calculations, it will
run very slowly (about 20-90 times slower than a 3/50 w/ 68881) and time
will report tons of system time if you don't have an FPU. If you do have
an FPU, it will scream and system time will be ~0.0.
See sun-spots v6n217, v6n222, v6n235, v6n279
Paul O'Neill pvo at oce.orst.edu
Coastal Imaging Lab
OSU--Oceanography
Corvallis, OR 97331 503-754-3251
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