In 8088 CPU architecture, the CX register is primarily used as a:
Ch 08: String Instructions and Primitives
Comprehensive study of x86 string primitives operating across DS:SI and ES:DI, hardware-accelerated memory copy, screen clearing via STOSW, string length calculation via SCASB, and string comparison via CMPSB.
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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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In x86 assembly language instructions, a constant (immediate value) can never be used as a:
Which of the following is an illegal instruction in 8088 assembly language?
In which operation does every bit move one position to the right, with the bit dropped from the rightmost position (LSB) inserted into the leftmost position (MSB) and also copied into the Carry Flag?
In which operation is the Carry Flag inserted from the left (into MSB), moving every bit one position to the right, with the rightmost bit (LSB) dropped into the Carry Flag?
Which of the following is NOT a valid instruction in 8088 assembly language?
Regarding signal flow direction between the processor and peripheral devices, the System Data Bus is:
After the execution of an SAR (Shift Arithmetic Right) instruction on an operand, what happens to the Most Significant Bit (MSB)?
Which operation shifts every bit one position to the right, replicates the original Most Significant Bit (sign bit) at the MSB position, and drops the rightmost bit into the Carry Flag?
Which internal arithmetic operation is executed by a simple CMP instruction?