Classify each of the following LC-3 instructions shown in hex:A.)  0x6AE3  B.)  0x02AA  C.)  0x50E9  D.)  0xF025

To classify LC-3 instructions given in hexadecimal, we will convert each hex instruction to binary, then determine the opcode and the specific instruction format.

1. Break Down the Problem

We need to:

1. Convert each hexadecimal instruction to binary.
2. Identify the opcode (the first 4 bits).
3. Classify the instruction based on the opcode.

2. Relevant Concepts

The LC-3 instruction set architecture defines several opcodes that correspond to different operations. The first four bits of the instruction indicate the opcode. Here’s a brief outline:

• 0000 - BR (Branch)
• 0001 - ADD
• 0010 - LD (Load)
• 0011 - ST (Store)
• and more...

3. Analysis and Detail

We will analyze each instruction in hexadecimal.

A) 0x6AE3

• Hex to Binary:
  • 6A → 0110 1010
  • E3 → 1110 0011
  • Full instruction: 0110 1010 1110 0011
• Opcode: 0110 (which is 6 in decimal, indicating a JMP or JSR instruction).

B) 0x02AA

• Hex to Binary:
  • 02 → 0000 0010
  • AA → 1010 1010
  • Full instruction: 0000 0010 1010 1010
• Opcode: 0000 (indicating a BR instruction).

C) 0x50E9

• Hex to Binary:
  • 50 → 0101 0000
  • E9 → 1110 1001
  • Full instruction: 0101 0000 1110 1001
• Opcode: 0101 (this represents the AND instruction).

D) 0xF025

• Hex to Binary:
  • F0 → 1111 0000
  • 25 → 0010 0101
  • Full instruction: 1111 0000 0010 0101
• Opcode: 1111 (this indicates a TRAP instruction).

4. Verify and Summarize

After classifying each instruction, here is the summary of their classifications based on their opcodes:

Final Answer

A) 0x6AE3 - JMP/JSR
B) 0x02AA - BR
C) 0x50E9 - AND
D) 0xF025 - TRAP