Memory Store Macro

All stores to simulated PDP-8 memory go through an instance of this macro. (See FETCH.)

STORE    MACRO MA,MB       STORE INTO MEMORY
          IFC    NE,$MA$$
          MX6    -10
          BX1    X6*MA
          AX1    6
          SB6    X1
          BX1    -X6*MA
          SA1    X1+MEMORY
          ELSE   1
          SA1    A1
          LX6    X0,B6
          BX6    -X6*X1
          LX1    MB,B6
          BX6    X6+X1
          SA6    A1
          ENDM

Memory Store Routine

FORTRAN code gains access to the store logic through this one adaptor routine.

STORE    PS
          RJ     RESREG
          STORE X3,X4
          EQ     STORE

PDP-8 Simulator