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We’re refreshing the questions on our KS3 and GCSE Computer Science subject knowledge assessment. The current version remains available. Updated questions will be available from 18 May 2026.

GCSE

Lesson 12 Assembly language programming I

Curriculum > KS4 > Unit > Lesson

This is the final set of lessons for the ‘Computer systems’ unit, a double lesson in which learners will design and write their own assembly language program. You will build them up to this task, first modelling the translation of a Python program into assembly, and then moving on to analysing and tracing an assembly language program as it runs. Over the course of the lesson, learners will build up a ‘toolbox’ of assembly language commands.

Learning objectives

  • Explain the basic commands in the LMC’s assembly code: INP, OUT, STA, LDA, ADD, SUB, and BRP
  • Determine that assembly language has a 1:1 relationship with machine code

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