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CBNE (SPC700): Difference between revisions
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'''CBNE''' is an [[SPC700]] instruction that performs a comparison between the accumulator and a direct page value and then branches if they are not equal. | '''CBNE''' is an [[SPC700]] instruction that performs a comparison between the [[accumulator]] and a [[direct page]] value and then branches if they are not equal. | ||
=== See Also === | === See Also === | ||
Revision as of 20:30, 23 July 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Direct Page / Program Counter Relative | 2E | 3 bytes | when condition is false: 5 cycles
when condition is true: 7 cycles |
||||
| Direct Page Indexed by X / Program Counter Relative | DE | 3 bytes | when condition is false: 6 cycles
when condition is true: 8 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | . | . |
CBNE is an SPC700 instruction that performs a comparison between the accumulator and a direct page value and then branches if they are not equal.
See Also
External Links
- Official Super Nintendo development manual on CBNE: Appendix C-8 of book I