On Feb 20, 2013, at 12:30, Tom Marchant wrote: > On Tue, 19 Feb 2013 19:37:59 -0700, Paul Gilmartin wrote: > >> If all you meant to imply is that the operand field as a whole >> appears to the right of the opcode, well, so much is surely >> correct. > > It is surely for 8-bit opcodes and the first 8 bits of the 12-bit and > 16-bit opcodes. The last 4 bits of the 12-bit opcodes is located at > bit 16 of the instruction, with a register or a mask preceding it. > Some of the 16-bit opcodes have the last 8 bits of the opcode at the > end of the instruction, others have those bits immediately following > the first 8 bits. > I intended to discuss the appearance in the Assembler source, only.
-- gil
