What are the different types of addressing modes in BAL?
The different types of addressing modes in BAL include direct addressing, indirect addressing, immediate addressing, and relative addressing.
Describe the difference between immediate and direct addressing in BAL.
In immediate addressing, the operand is a constant value that is part of the instruction itself. In direct addressing, the operand is a memory address, and the instruction refers directly to the memory location.
How would you implement a loop in BAL?
A loop in BAL can be implemented using the BRANCH instruction. The condition for the loop can be checked using the COMPARE instruction, and the BRANCH instruction can be used to jump back to the start of the loop if the condition is true.
What is the purpose of the LTORG directive in BAL?
The LTORG directive is used to tell the assembler to place the literals used in the program in memory. It helps in managing the literals in a BAL program.
How would you perform arithmetic operations in BAL?
Arithmetic operations in BAL can be performed using the ADD, SUBTRACT, MULTIPLY, and DIVIDE instructions. These instructions operate on the contents of registers and/or memory locations.