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S.N. on Difference between JMP instruction & CALL instruction
written 6.3 years ago by gravatar for mankar.shubhangi07 mankar.shubhangi07 • 120 modified 2.2 years ago by gravatar for DevarenjiniP DevarenjiniP • 3.1k
embedded systems
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written 2.2 years ago by gravatar for DevarenjiniP DevarenjiniP • 3.1k
JMP INSTRUCTION CALL INSTRUCTION
Program control is transferred 
to a memory location which is 
in the main program.		 Program control is transferred 
to a memory location which is 
not a part of the main program.
Program counter value is 
not transferred to a stack.		 Program counter value is
transferred to a stack.
Value of stack pointer does
not change.		 Value of stack pointer is
decremented by two.
RET instruction is not required. RET instruction is required.
Immediate addressing mode
eg: 2900 JMP 2975 H		 Immediate + Register indirect 
addressing mode.
8000 H CALL 2000 H,SP=3000H
before                          after
 SP:3000H                   SP:2FFE H
DC:8000H                    PC:2000 H
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