Understanding Assembly Language Instructions

What does the instruction `LDM #n` do in the context of the given assembly language?

• Loads the contents of the specified address into ACC.

• Loads the contents of the contents of the given address into ACC.

Which instruction is used to load the contents of a specified address into the accumulator using direct addressing?

• LDM #n

• LDD

• LDI

• LDX

What is the purpose of the `LDI

` instruction?

• Load the contents of the specified address into ACC.

• Load the contents of the contents of the given address into ACC.

• Load the contents of this calculated address into ACC.

How does the `LDX

` instruction calculate the address to be used?

• It uses the specified address directly.

• It uses the contents of the specified address.

• It uses the specified address plus the contents of the index register.

• It uses the contents of the index register only.

What does the `LDR #n` instruction do?

• Loads the contents of ACC into IX.

• Loads the contents of the specified address into IX.

Which instruction moves the contents of the accumulator to the index register?

• LDM #n

• LDR ACC

• MOV

• STO

What is the function of the `STO

` instruction?

• Store the contents of ACC into the specified address.

• Store the contents of IX into the specified address.

• Store the contents of the specified address into ACC.

What does the `END` instruction signify in the assembly language?

• End of the program.

• Return control to the operating system.

• End of a loop.

• End of a function.

Which instruction adds the contents of a specified address to the accumulator?

• ADD #n

• ADD

• LDM #n

• LDD

What is the addressing mode used by the `LDM #n` instruction?

• Direct addressing

• Indirect addressing

• Immediate addressing

• Indexed addressing