Use this pop-up menu to send on the A bus (left input to the Arithmetic Logical Unit) the value stored in a register.
Use this pop-up menu to send on the B bus (right input to the Arithmetic Logical Unit) the value stored in a register.
Use this pop-up menu to overwrite a register with the shifter output.
To put the B latch contents into the Memory Address Register, check this button.
To put the shifter output into the Memory Buffer Register, check this button.
Use this pop-up menu to request memory reads or writes.
Use this pop-up menu to control the shifter behavior.
Use this pop-up menu to choose on which condition the selected microinstruction should take a jump.
Use this pop-up menu to control the Arithmetic Logical Unit behavior.
To send the value arriving from the A latch to the Arithmetic Logical Unit, click here.
To send the value arriving from the Memory Buffer Register to the Arithmetic Logical Unit, click here.
To activate the hardware decoding unit (labeled MAP in the Animation window), check this button.
Enter here the destination microinstruction line number. To enter the line number automatically, Command-click on the destination microinstruction (in the descriptions list).
Enter here a description of the current microinstruction. The description will appear in the adjacent list.
This is a list of the descriptions entered for each microinstruction. To select a branch destination line, select a line containing a branch and double-click on it.
This is a list of the conventional instructions of this processor. To select the starting line of a conventional instruction in the descriptions list, click on it. To change the starting line, click and drag to the description list.
