NAR 2 - Standard Assembly Language Syntax

Standard Assembly Language Syntax

NAR 2 assembly language syntax was straightforward and easy to parse. Each program line could contain up to one instruction specified as follows:

  1. Instruction mnemonic
  2. Whitespace, if instruction specifies any index registers, addressing mode or a parameter and then comma-separated:
    1. Name of index register, if used
    2. Names of addressing mode flags (also comma separated)
    3. Parameter value

Sample code:

aum X1, p, 0 mua n, 1 aum 15 pir X1, p, n, 1 mua X1, p, n, 0 oduf n, 1 oduf X2, p, n, 0

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