When a 32-bit dividend is divided by a 16-bit divisor using the DIV instruction (DIV r/m16 with DX:AX holding the dividend), how many bits wide is the resulting quotient register (AX)?
Ch 04: Bit Manipulation and Shifts
Covers bitwise logic manipulations, clearing/setting/toggling specific bits, arithmetic vs logical shifts, fast multiplication and division algorithms by powers of 2, and extended-precision math.
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CS401 - Computer Architecture and Assembly Language Programming Examination Practice
Timed practice exam simulation for CS401 - Computer Architecture and Assembly Language Programming.
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Whenever access to a memory location is required whose target address cannot be known until runtime, which addressing technique is used?
Whenever access to a memory location is required whose address cannot be determined until runtime, we use an ________ register.
After the execution of the SAR (Shift Arithmetic Right) instruction on a destination register, how is the Most Significant Bit (MSB) treated?
During a logical or arithmetic left-shift operation (SHL/SAL), into which CPU status flag is the most significant bit (MSB) shifted?
Suppose a decimal number is 35. After shifting its binary representation 2 bits to the left, what is its new decimal value?
Suppose the decimal number 35 is shifted two bits to the left in binary. What does its new decimal value become?
Explain the operation and function of the Rotate Right (ROR) instruction in assembly language.
What is the key difference between the SHR (Shift Logical Right) and SAR (Shift Arithmetic Right) instructions in assembly language?
If register BL contains decimal 5, what value will BL contain after executing a logical right shift by 1 bit ('SHR BL, 1')?