(i) STA 2500H:
The instruction STA 2500H will store the value in the accumulator at memory location 2500H. The labeled timing diagram for this instruction is shown below:
Time | T-State | Description |
---|---|---|
T1 | Opcode Fetch | The opcode for the STA instruction is fetched from memory. |
T2 | Operand Fetch | The operand (2500H) for the STA instruction is fetched from memory. |
T3 | Execution | The accumulator value is stored at memory location 2500H. |
(ii) LHLD 2200H:
The instruction LHLD 2200H will load the values stored at memory locations 2200H and 2201H into the registers HL. The labeled timing diagram for this instruction is shown below:
Time | T-State | Description |
---|---|---|
T1 | Opcode Fetch | The opcode for the LHLD instruction is fetched from memory. |
T2 | Operand Fetch | The operand (2200H) for the LHLD instruction is fetched from memory. |
T3 | Execution | The values stored at memory locations 2200H and 2201H are loaded into registers HL. |
Note: The above timing diagrams assume that the instructions are executed sequentially without any interruptions or delays.
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