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Compare AJMP, SJMP and LJMP instruction of 8051.
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written 7.2 years ago by
teamques10
★ 64k
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| SJMP | LJMP | AJMP |
|---|---|---|
| Short jump, relative address is 8 bit it support 127 location forward | Long jump range is 64 kb | Absolute jump to anywhere within 2k block of program memory |
| It uses 8 bit address. | It uses 16 bit address | It uses an 11 bit address |
| 2 byte instruction. | 3 byte instruction | 2 byte instruction |
| Conditional branch instruction can use,relative JMP. | Cannot use long JMP | Cannot the JMP absolute |
| Address calculation | PC is equal to 11 bit | PC is equal to 16 bit. |
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