Latest Implementation Document is attached. Comments need reviewing and clarification. Style issues will need to be addressed. This is meant for for ARM with hardware floating point, any MIPS, RISC-V, M68K, Hitachi SuperH, IBM S390x, Powerpc64, and (in theory) Sparc. The version to handle Intel i386, x32 and x86-64 will be very different. Regards - Damian Pacific Engineering Systems International, 277-279 Broadway, Glebe NSW 2037 Ph:+61-2-8571-0847 .. Fx:+61-2-9692-9623 | unsolicited email not wanted here Views & opinions here are mine and not those of any past or present employer