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MICROPROCESSOR INSTRUCTION REFERENCE->LD (8 bit)
LD Load Accumulator from Memory
LDA
LDB
A <- M or B <- M
Condition Code Register:
H Not affected
N Set if result Negative, else cleared
Z Set if result Zero, else cleared
V Always cleared
C Not affected
Addressing mode | No of cycles | No of bytes |
Immediate: | 2 | 2 |
Direct: | 4 | 2 |
Extended: | 5 | 3 |
Index/Indirect: | 4+ | 2+ |
Addressing mode | No of cycles | No of bytes |
Immediate: | 3 (4) | 3 (4) |
Direct: | 5 (6) | 2 (3) |
Extended: | 6 (7) | 3 (4) |
Index/Indirect: | 5+ (6+) | 2+ (3+) |