Operand Specifiers: The instructions may have more than one operands. It specifies source values to perform an operation. It also contains destination location into which result is to be placed. The different types of operands provided could be classified into three types: Immediate: It is used for constant values. It is written as “$” followed by integer. The range of immediate values may differ based on instruction. Register: It denotes the contents of a register. The 8-byte, 4-byte, 2-byte or 1-byte register’s low-order portions denote 64, 32, 16 or 8 bite respectively. The notation “r a ” denotes arbitrary register “a” and its value is indicated with reference “R[r a ]”. It views register set as an array R that is indexed by register identifiers. Memory: The “effective address” is used to access some memory location. The notation “M b [Addr]” denotes reference to b-byte value stored in memory starting at address “Addr”.

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Chapter 3.4, Problem 3.1PP

Program Plan Intro

Operand Specifiers:

The instructions may have more than one operands.

It specifies source values to perform an operation.

It also contains destination location into which result is to be placed.

The different types of operands provided could be classified into three types:

Immediate:

It is used for constant values.

It is written as “$” followed by integer.

The range of immediate values may differ based on instruction.

Register:

It denotes the contents of a register.

The 8-byte, 4-byte, 2-byte or 1-byte register’s low-order portions denote 64, 32, 16 or 8 bite respectively.

The notation “r_a” denotes arbitrary register “a” and its value is indicated with reference “R[r_a]”.

It views register set as an array R that is indexed by register identifiers.

Memory:

The “effective address” is used to access some memory location.

The notation “M_b[Addr]” denotes reference to b-byte value stored in memory starting at address “Addr”.

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