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Compare AJMP, SJMP, LJMP instructions of 8051.
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written 5.8 years ago by
teamques10
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| AJMP | SJMP | LJMP |
|---|---|---|
| Absolute jump to anywhere within 2k block of program memory | Short jump, relative address is 8 bit it support 127 location forward | Long jump range is 64 kb |
| It uses an 11 bit address | It uses 8 bit address. | It uses 16 bit address |
| 2 byte instruction | 2 byte instruction. | 3 byte instruction |
| Cannot the JMP absolute | Conditional branch instruction can use, relative JMP. | Cannot use long JMP |
| PC is equal to 16 bit. | Address calculation | PC is equal to 11 bits |
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