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Block Move Addressing: Difference between revisions

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Two instructions use '''Block Move Addressing''' on the [[65c816]]:
Two instructions use '''Block Move Addressing''' on the [[65c816]]:


* [[MVP]]
* [[MVP]] (opcode 44)
* [[MVN]]
* [[MVN]] (opcode 54)


The total number of bytes copied is the value in the [[C accumulator]] plus one.  If a block move is interrupted, the current byte copy is completed, then the interrupt is serviced.
The total number of bytes copied is the value in the [[C accumulator]] plus one.  If a block move is interrupted, the current byte copy is completed, then the interrupt is serviced.

Revision as of 22:29, 26 June 2024

Two instructions use Block Move Addressing on the 65c816:

  • MVP (opcode 44)
  • MVN (opcode 54)

The total number of bytes copied is the value in the C accumulator plus one. If a block move is interrupted, the current byte copy is completed, then the interrupt is serviced.

Reference