4.4.Hack语言规范

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\(4.4.\)Hack Language Specification

1.The binary syntax for A instruction

  • The first zero of a binary number is called operate code in HL.

  • Syntax: Starts with 0, and the value is less or equal than \(2^{15}-1\).

    • For example: 
      1
      2
      //set A register to 21
      0000000000010101

2.The binary syntax for C instruction

  The binary syntax correspond to symbolic syntax is as below:

  • The comp mapping table from symbolic to binary is as below:

  • The dest mapping table from symbolic to binary is as below:

  • The jump mapping table from symbolic to binary is as below: