|  LDA |
Reference/6502 Programming/Assembly
LDA - LoaD Accumulator
Loads a byte of memory into the accumulator. Sets the Zero Flag and Negative Flags as appropriate.
LDA #$1B A will be equal to $1B
LDA $0314 A will be equal to whatever value is at memory location $0314
| Addressing Mode | Syntax | Opcode | Bytes | Cycles | | Immediate addressing mode | LDA #$00,$A9 | 2 | 2 | | Zero Page addressing mode | LDA $00 | $A5 | 2 | 3 | | Zero Page,X addressing mode | LDA $00,X | $B5 | 2 | 4 | | Absolute | LDA $1000 | $AD | 3 | 4 | | Absolute,X | LDA $1000,X | $BD | 3 | 4 (+1 if page crossed) | | Absolute,Y | LDA $1000,Y | $B9 | 3 | 4 (+1 if page crossed) | | (Indirect,X) | LDA ($10,X) | $A1 | 2 | 6 | | (Indirect),Y | LDA ($10),Y | $B1 | 2 | 5 (+1 if page crossed) |
LDX, LDY |
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