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SBC: Difference between revisions

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[[Category:ASM]]
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[[Category:Group One Instructions]]
[[Category:Group One Instructions]]
[[Category:Inherited from 6502]]

Revision as of 19:06, 4 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
. . . .

See Also