4 ms·It's one place C shows its roots .... mov (r0)+, (r1)+ is a PDP11 instruction as is mov -(PC), -(PC)by Taniwha 4y agoIt's one place C shows its roots .... mov (r0)+, (r1)+ is a PDP11 instruction as is mov -(PC), -(PC)Annatar 4y ago...Or move.l (a0)+, (a1)+Taniwha 4y agoI think those are 68k ops - PDPlls didn't have special addressing registers (just general R0-R7) and MOV/MOVB opcodesAnnatar 4y agoOf course they are MC68000 family assembler instructions, but the principle is exactly the same.veltas 4y agoAnd yet it's from B which was not designed for a machine with auto increment.