HOTSHOT
March 24th, 2005, 03:40 AM
I had to find pdp-8 instruction code.
000 - AND - and operand with AC.
001 - TAD - add operand to <L,AC> (a 13 bit value).
010 - ISZ - increment operand and skip if result is zero.
011 - DCA - deposit AC in memory and clear AC.
100 - JMS - jump to subroutine.
101 - JMP - jump.
110 - IOT - input/output transfer.
111 - OPR - microcoded operations.
But now the next part is to find corrosponding i86 instructions for these pdp instructions. I searched on google about i86 instructions code but couldnt' find anything. So can any of u help me find these i86 instructions.
000 - AND - and operand with AC.
001 - TAD - add operand to <L,AC> (a 13 bit value).
010 - ISZ - increment operand and skip if result is zero.
011 - DCA - deposit AC in memory and clear AC.
100 - JMS - jump to subroutine.
101 - JMP - jump.
110 - IOT - input/output transfer.
111 - OPR - microcoded operations.
But now the next part is to find corrosponding i86 instructions for these pdp instructions. I searched on google about i86 instructions code but couldnt' find anything. So can any of u help me find these i86 instructions.