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:
movimovi opcode,
as will replace the movi with a sequence of
movi and shori opcodes.
ptmovi and shori opcode,
followed by a ptrel opcode, or to a pta or ptb
opcode, depending on the label referenced.