A Level – Computer Science – 14 – Exam Style Questions with Answers

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ALVL_GEN_CS_1_THRY_14

1 / 10

Identify the addressing mode for the following description.

Form the address by adding the given number to a base address. Load the contents of the calculated address to the Accumulator (ACC).

2 / 10

Identify the addressing mode for the following description.

Load the contents of the address held at the given address to ACC.

3 / 10

Convert the denary number −239 into 12-bit two’s complement.

4 / 10

Convert the unsigned binary number 0101 1111 1100 into denary

5 / 10

6 / 10

Convert the Binary Coded Decimal (BCD) value 0110 0101 into denary.

7 / 10

Convert the two’s complement number 0110 0101 into denary.

8 / 10

Identify the addressing mode for the following description.

Load the given value directly to ACC.

9 / 10

Convert the denary number 222 into hexadecimal.

10 / 10

Identify the addressing mode for the following description.

Load the contents of the given address to ACC.

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