When an unsigned subtraction operation requires a borrow (i.e. subtracting a larger unsigned number from a smaller number), which status flag in the FLAGS register is set (`1`)?
Ch 03: Branching, Loops and Program Flow
Examines program control flow in assembly, flag register evaluation (ZF, CF, SF, OF), relative displacement jumps, implementing loops, and bubble sort sorting algorithms in assembly.
261 Questions261 MCQs0 Short Questions0 Long Questions
SEMESTER PASS
CS401 - Computer Architecture and Assembly Language Programming Examination Practice
Timed practice exam simulation for CS401 - Computer Architecture and Assembly Language Programming.
Showing 121 – 130 of 261 Questions
Page 13 of 27
True or False: Register-to-register operations (such as `mov ax, bx` or `add cx, dx`) are NOT allowed in x86 assembly language.
When a larger unsigned number is subtracted from a smaller number, a borrow is required. Which processor status flag is set in this case?
In the assembly code statement `total: dw 0`, what is the syntactic role of `total`?
In standard assembly language curriculum (CS401), into how many main categories/groups are instructions classified?
True or False: Data movement instructions are specifically used to transfer data from one place to another (such as register-to-register, or register-to-memory).
Which group of instructions allows changing specific processor behaviors and controlling hardware operation modes?
Which register in x86 architecture is bit-significant, with each individual bit named and assigned a distinct status or control meaning?
True or False: Intel x86 assembly language instruction syntax strictly follows the 'operation destination, source' convention.
When two 16-bit numbers are added, the sum can be up to 17 bits long. In which register bit is this extra 17th bit (carry) placed so it can be tested and used in multi-word addition?