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Implied Addressing: Difference between revisions

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(opcode AA)
(opcode A8)
Line 7: Line 7:
* [[INY]] (opcode C8)
* [[INY]] (opcode C8)
* [[TAX]] (opcode AA)
* [[TAX]] (opcode AA)
* [[TAY]]
* [[TAY]] (opcode A8)
* [[TCD]]
* [[TCD]]
* [[TSC]]
* [[TSC]]

Revision as of 23:15, 26 June 2024

There are three types of Implied Addressing on the 65c816:

Type 1 - The register(s) to be operated on are implied in the mnemonic: (17 instructions)

Type 2 - The flag(s) to be operated on are implied in the mnemonic: (8 instructions)

Type 3 - Neither flags nor registers operated on: (4 instructions)

  • NOP (opcode EA)
  • STP (opcode DB)
  • WAI (opcode CB)
  • WDM (opcode 42)

All implied instructions except for WDM are one byte long.

Reference