Change FPU round mode

Hi,

Here is my system specification.

Intel P4 Xeon
CentOS 5.3
Linux kernel 2.6.18-128.1.6.el5
gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)
[note: the gcc was configured to support Fortran]

The default x87 FPU rounding mode is `round to the nearest'.

Is there any Fortran command that I can use to change the rounding
mode to `round to 0'?

But if such a command is not available, I know how to change the
rounding mode using assembly instructions. Is there any way to inline
assembly code in Fortran code with the gfortran compiler?

Please feel free to provide pointer to locations where I can find more
information.

Thank you!
.

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