CHAPTER 11 INSTRUCTION SET
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User’s Manual U10676EJ3V0UM
(4) Explanation of machine cycle field
S indicates the number of machine cycles required for an instruction with skip to execute the skip operation.
The value of S varies as follows.
When skip is executed.............................................................................. S = 0
When 1- or 2-byte instruction is skipped................................................. S = 1
When 3-byte instructionNote is skipped.................................................... S = 2
Note 3-byte instructions: BR !addr, BRA !addr1, CALL !addr, CALLA !addr1
Caution The GETI instruction is skipped in one machine cycle.
One machine cycle is equal to one cycle of CPU clock Φ (= tCY), and four times can be set by PCC (refer to
Figure 6-15 Processor Clock Control Register Format).