Discussion
For the input-output instruction in computer architecture, what is the meaning of the given command?
SKI \(\mathrm{pB_9}\)
Answer: A
SKI is the input output instruction of the basic computer with code F200 (hexadecimal), which stands for skip on input flag: it checks the input flag FGI and, if it is set, skips the next instruction by incrementing the program counter. The skip on output flag instruction is SKO, with code F100, and ION and IOF are the instructions that turn the interrupt on and off. The answer is option A.
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