Lab 4: Quizziz Questions

Convert 1234 from decimal to binary:

• 0b10011010010

• 0b10110010101

• 0b10011000111

• 0b01010010010

Convert –67 to 8-bit two’s complement binary:

• 0b1000011

• 0b10111101

• 0b11101000

• 0b01000011

Convert 0x67 to decimal:

• 102

• 103

• 104

• 105

Convert 0xCAFE to decimal:

• 51965

• 51966

• 51967

• 51968

Sign extend the two’s complement number, 0b11010101, to 12 bits

• 0b111111010101

• 0b000011010101

• 0b100011010101

• 0b1000011010101

Negate the following in two’s complement: 0x6741

• 0x98BF

• 0x78CE

• 0x96CF

• 0x76CE

Does adding 0b1110 + 0b1010 (both two’s complement) overflow?

• Yes

• No

Simplify the following boolean expression: (C | (A | B)) & (C | ~(A | B))

• C

• A

• B

• A+B

What bitmask should I do to clear bit 1 on bit vector A = 11010

• A | 00001

• A & 11101

• A ^ 11111

• A ^ 00100

• A | 00010

If X and Y are bit 1 and bit 0 of the decoder’s input, respectively, and X=1 and Y=0, what should S1 and S0 be set to so that OUT = 1?

• S1=0, S0=0

• S1=0, S0=1

• S1=1, S0=0

• S1=1, S0=1