3.3.14.4 Two Instruction Words, Four Instruction Cycles – GOTO or CALL

In these instructions, the fetch after the instruction contains data. This results in a four-cycle instruction, as shown in Figure 3-16. The second word of a two-word instruction is encoded so that it executes as a NOP if it is fetched by the CPU when the CPU did not first fetch the first word of the instruction. This is important when a two-word instruction is skipped by a skip instruction (see Figure 3-16).