We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

LDA: Difference between revisions

From SnesLab
Jump to: navigation, search
(added group 1 category)
(added 6502 category)
Line 109: Line 109:
[[Category:ASM]]
[[Category:ASM]]
[[Category:Group One Instructions]]
[[Category:Group One Instructions]]
[[Category:Inherited from 6502]]

Revision as of 18:58, 4 May 2023

LDA (Load Accumulator) is a 65x instruction that loads the accumulator.

Basic Info
Addressing Mode Opcode Length Speed
immediate A9 2 bytes 2 cycles
absolute AD 3 bytes 4 cycles
absolute long AF 4 bytes 5 cycles
direct page A5 2 bytes 3 cycles
direct page indirect B2 2 bytes 5 cycles
direct page indirect long A7 2 bytes 6 cycles
absolute indexed by X BD 3 bytes 4 cycles
absolute long indexed by X BF 4 bytes 5 cycles
absolute indexed by Y B9 3 bytes 4 cycles
direct page indexed by X B5 2 bytes 4 cycles
direct page indexed indirect by X A1 2 bytes 6 cycles
direct page indirect indexed by Y B1 2 bytes 5 cycles
direct page indirect long indexed by Y B7 2 bytes 6 cycles
stack relative A3 2 bytes 4 cycles
stack relative indirect indexed by Y B3 2 bytes 7 cycles
Flags Clobbered
N V M X D I Z C
. . . . . .