* MIPS fppipe(): added error handling, and fixed parameter location (assembler procedures should not modify initial location of parameters, but one of MIPS code generator hacks copies parameters to stack. That hack is subject to remove).

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@23610 3ad0048d-3df7-0310-abae-a5850022a9f2