Custom Instructions: Single-precision -mcustom-* compiler options

Possibly the compiler is assuming that the FP instructions are included in blocks, I have looked at the gcc code - but wasn't particularly interested in the FP bits.

That asm snippit also seems to have managed to use 'at' (r1 - assembler temporary). I've looked for, but never found, a place where it gets used.

(Or have you explicitly enabled it in the compiler and assembler??)

Actually it might be interesting to see the compiler output (foo.s) itself.