Lecture 4 - Introduction to Computing

Arithmetic can be performed in the instruction register

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Arithmetic can be performed in the A Register.

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Arithmetic can be performed in the accumulator.

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LDBA 0X008B,i loads the byte 008B into register A.

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ADDA 0x008B,i adds the contents of 008B to the A register.

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The Program Counter and the Instruction Register are two names for the same place.

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The A register and the accumulator are two names for the same place.

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The Instruction Register is three bytes long.

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The Program Counter is three bytes long.

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The branch instruction, BR, branches to the location specified in the operand specifier.

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