For detailed information on the SH64 machine instruction set, see [SuperH 64 bit RISC Series Architecture Manual] (SuperH, Inc.).
as implements all the standard SH64 opcodes. In addition, the following pseudo-opcodes may be expanded into one or more alternate opcodes:
If the value doesn't fit into a standard movi opcode, as will replace the movi with a sequence of movi and shori opcodes.
This expands to a sequence of movi and shori opcode, followed by a ptrel opcode, or to a pta or ptb opcode, depending on the label referenced.