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#  $Id: README,v 1.2 2001-09-27 12:01:22 chris Exp $

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M68040FPSP -- Motorola 68040 floating point support package

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Modified for RTEMS by Eric Norum (eric@skatter.usask.ca)

To include these routines in your application call

        M68KFPSPInstallExceptionHandlers ();

before performing any floating point operations.

Acknowledgement

---------------

This code can be obtain from the Motorola Engineer's Toolbox WWW page

at http://www.mot.com/SPS/HPESD/tools/freeware/040fpsp.html.  Here is

the description from that page:

  The MC68040 contains a subset of the floating-point hardware that is

  implemented in the MC68881/882 devices and as such provides reduced yet

  high performance on-chip floating-point support. Those applications that

  require full compatibility with earlier members of the M68000 family

  will need to provide emulation support fo r the un-implemented MC68040

  floating-point instructions. The M68040FPSP provides complete emulation

  of the floating-point functionality available in the MC68881/882.

  The M68040FPSP is offered in source code form to allow integration into

  existing systems to support either a kernel or library version of

  floating-point support. The M68040FPSP operates in conjunction with the

  on-chip MC68040 features to provide fast and full emulation. The kernel

  version allows full emulation via a trap mechanism to allow full binary

  compatibility and is fully reentrant. The library version is used to

  eliminate the trap overhead in situation where re-compilation is

  possible or desired.

From this page one may download the original source code.  Inline with

the first sentence of the second paragraph, we have integrated it with

RTEMS.