Forwarding

• Result of ALU operation is known at end of EXE stage

• Forwarding between:

EXE/MEM pipeline register to ALUinput for instructions i and i + 1

MEM/WB pipeline register to ALUinput for instructions i and i + 2

Forwarding through register file (write 1st half of cycle, read 2nd half of cycle) for instructions i and

i + 3

Previous slide

Next slide

Back to first slide

View graphic version