http://sourceware.org/binutils/docs/as/ARM_002dRegs.html#ARM_002dRegs isn't yet written. Anyone know where this information is available please? I'm getting first.asm:33: VFP single precision register expected And I don't know what register names are expected? TIA -- Dave Pawson XSLT XSL-FO FAQ. Docbook FAQ. http://www.dpawson.co.uk