We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
CLR1 (SPC700): Difference between revisions
From SnesLab
(linkify flags) |
(two byte Instructions) |
||
| Line 84: | Line 84: | ||
[[Category:Bit Operation Commands]] | [[Category:Bit Operation Commands]] | ||
[[Category:Read-Modify-Write Instructions]] | [[Category:Read-Modify-Write Instructions]] | ||
[[Category:Two-byte Instructions]] | |||
Revision as of 11:26, 28 November 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Direct Page | 12 | 2 bytes | 4 cycles | ||||
| Direct Page | 32 | 2 bytes | 4 cycles | ||||
| Direct Page | 52 | 2 bytes | 4 cycles | ||||
| Direct Page | 72 | 2 bytes | 4 cycles | ||||
| Direct Page | 92 | 2 bytes | 4 cycles | ||||
| Direct Page | B2 | 2 bytes | 4 cycles | ||||
| Direct Page | D2 | 2 bytes | 4 cycles | ||||
| Direct Page | F2 | 2 bytes | 4 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | . | . |
CLR1 is an SPC700 command that clears a bit in a direct page byte. The byte following the opcode determines which byte. The high nibble of the opcode determines which bit within that byte.
See Also
External Links
- Official Nintendo documentation on CLR1: Table C-18 in Appendix C-9 of Book I