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OCR A-Level Computer Science
Assembly and Addressing

OCR · A-Level Computer Science

Assembly and Addressing

3Topics

1.8hStudy time

In this section

3 topics

LMC Input, Storage and Branches

Explain the purpose of OCR’s LMC instructions

LMC Counted Loops and Debugging

Trace an LMC accumulator-based loop

Immediate, Direct, Indirect and Indexed Addressing

Distinguish the four required addressing modes

Work through each topic to complete the section.