计算机程序员笔试题
1. Simplify the following Boolean expression
!((i ==12) || (j > 15))
2. How many flip-flop circuits are needed to divide by 16?
3. Provides 3 properties that make an OS, a RTOS?
4. What is pre-emption?
5. Assume the BC register value is 8538H, and the DE register value is 62 A5H.Find the value of register BC after the following assembly operations:
MOV A,C
SUB E
MOV C,A
MOV A,B
SBB D
MOV B,A
6. In the Assembly code shown below
LOOP: MVI C,78H
DCR C
JNZ LOOP
HLT
How many times is the DCR C Operation executed?
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