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SBC: Difference between revisions
From SnesLab
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=== See Also === | === See Also === | ||
* [[ADC]] | * [[ADC]] | ||
=== External Links === | |||
* [[Eyes & Lichty]] page on SBC: https://archive.org/details/0893037893ProgrammingThe65816/page/n523 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Group One Instructions]] | [[Category:Group One Instructions]] | ||
[[Category:Inherited from 6502]] | [[Category:Inherited from 6502]] | ||
Revision as of 22:53, 15 May 2023
SBC (Subtract with Carry/Borrow) is 65x instruction that performs a subtraction.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| immediate | E9 | 2 bytes | 2 cycles | ||||
| absolute | ED | 3 bytes | 4 cycles | ||||
| absolute long | EF | 4 bytes | 5 cycles | ||||
| direct page | E5 | 2 bytes | 3 cycles | ||||
| direct page indirect | F2 | 2 bytes | 5 cycles | ||||
| direct page indirect long | E7 | 2 bytes | 6 cycles | ||||
| absolute indexed by X | FD | 3 bytes | 4 cycles | ||||
| absolute long indexed by X | FF | 4 bytes | 5 cycles | ||||
| absolute indexed by Y | F9 | 3 bytes | 4 cycles | ||||
| direct page indexed by X | F5 | 2 bytes | 4 cycles | ||||
| direct page indirect indexed by X | E1 | 2 bytes | 6 cycles | ||||
| direct page indirect indexed by Y | F1 | 2 bytes | 5 cycles | ||||
| direct page indirect long indexed by Y | F7 | 2 bytes | 6 cycles | ||||
| stack relative | E3 | 2 bytes | 4 cycles | ||||
| stack relative indirect indexed by Y | F3 | 2 bytes | 7 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | |||||