WorksheetsBasic LEA Knowledge
Total questions: 7
Worksheet time: 4mins
In LC-3 assembly language, what is the difference between the LEA (Load Effective Address) instruction and a direct LDR (Load) instruction?
LEA allows loading from any address, while LDR is limited to immediate values.
LEA loads the actual data at an address, while LDR loads the effective address.
LEA calculates and loads the effective address, while LDR loads data directly from memory.
LEA and LDR are functionally identical; they can be used interchangeably.
When might you prefer to use LEA over LDI (Load Indirect) in LC-3 assembly programming?
LEA is always more efficient than LDI.
LEA is used for loading immediate values, while LDI is used for loading addresses
LEA allows for more flexible address calculations, while LDI is limited to direct address loading.
LEA and LDI are interchangeable, and the choice depends on programmer preference.
What is the progress towards a successful LEA?
Adding the contents of PC and the PCoffset into the register.
Adding the contents of PCoffset into the register
Adding the contents in the PC into the register
Non of mentioned
What does the "LEA" instruction in LC-3 stand for?
Load External Address
Load Effective Address
Load Effective Accumulator
Load Execution Address
"1110 001 111111101" the last 9 bits represent..
Register
PC
PCoffset
Destination Register
In LC-3 assembly language, what does the "LEA" instruction store in the destination register?
The value at the specified memory address.
The immediate value provided in the instruction.
The effective address of the specified memory location
The result of a logical OR operation.
What is The opperand for the LEA opcode
0110
1101
0001
None of Above
