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LDY

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Basic Info
Addressing Mode Opcode Length Speed
Immediate A0 2/3 bytes 2 cycles*
Absolute AC 3 bytes 4 cycles*
Direct Page A4 2 bytes 3 cycles*
Absolute Indexed by X BC 3 bytes 4 cycles*
Direct Page Indexed by X B4 2 bytes 4 cycles*
Flags Affected
N V M X D I Z C
N . . . . . Z .

LDY (Load Y) is a 65x instruction that loads a value into the Y index register. In immediate addressing only, LDY takes a total of 3 bytes when the index registers are 16 bits wide.

Syntax

LDY #const
LDY addr
LDY dp
LDY addr, X
LDY dp, X
Cycle Penalties

See Also

External Links