Computer Organization and Design RISC-V Edition

1. A conditional branch that is taken with 5% frequency

2. A conditional branch that is taken with 95% frequency

3. A conditional branch that is taken with 70% frequency

To make a computer with automatic program-interruption facilities behave [sequentially] was not an easy matter, because the number of instructions in various stages of processing when an interrupt signal occurs may be large.

Fred Brooks, Jr., Planning a Computer System: Project Stretch, 1962

Figure 4.62 The final datapath and control for this chapter.Note that this is a stylized figure rather than a detailed datapath, so it’s missing the ALUsrc Mux from Figure 4.55 and ...