CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS
6.65PUSHW (PUSH Word Data of Inherent Register to Stack Memory)
Subtract 2 from the value of SP. Then, transfer the word value from the memory indicated by SP to dr.
■PUSHW (PUSH Word Data of Inherent Register to Stack Memory)
Operation
(SP) ← (SP) - 2 (Word subtraction) ((SP)) ← (dr) (Word transfer)
Assembler format
PUSHW dr
Condition code (CCR)
N | Z | V | C |
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- | - | - | - |
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+: Changed by executing instruction
N:Not changed
Z:Not changed
V:Not changed
C:Not changed
Table 6.65-1 Number of Execution Cycles / Byte Count / OP Code
DR | A | IX | |
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Number of execution | 4 | 4 | |
cycles | |||
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Byte count | 1 | 1 | |
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OP code | 40 | 41 | |
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176
