Lab 7.5 
#7



Data flow of an instruction in PIPPIN

PC pulls the command line associated to the number it is currently incremented to.

IR holds the command

Decoder decodes the command for the system to use

MUX reviews the command to determine what actions needs to be taken (+, -, *, /, AND, NOT, =, <)

The action determined by the MUX is stored in the ALU

The value in the ACC is entered into the ALU

Back to the IR for the next command or variable

If the value is stored in memory the system will go to the memory location for the value

Back to MUX to determine if any action needs to be taken

The value retrieved is placed in the ALU

The command is performed

The PC is increased by 2