Identify the location of the following corresponding operand if the address field in an instruction contains...
Identify the location of the following corresponding operand if
the address field in an instruction contains decimal value
15.
i. immediate addressing
ii. direct addressing
iii. indirect addressing
iv. register addressing
v. register indirect addressing
Homework Answers
1 )In immediate addressing mode, the operand field contains the constant value which can be used to perform operation.
Here 15 can be used directly in operation.
2.
In direct mode, operand field contains address, the operand is fetched from address 15.
3)
Indirect Mode, operand contains the adress, which inturn contains address, to locate the operand.
Suppose in address 15, if we have adress 100, the operand is fetched from location 100.
4)
In register modes, register number is specified, so the contents of register ID 15 is used.
5) register indirect: The specified register 15 contains address of another register from where the operand is fetched.
Suppose register 15 contains 10, then the contents of R10 is operand.
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