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C based compiler for a lox language

15.1.2

  1. Stack based vm
  2. Emulates the way computers are architected

15.2.1

  1. Implement a stack
  2. Include it in the VM

15.2.2

  1. Implement debug functionality for the VM stack
  2. Add push to the constant case instruction
  3. And pop while returning

15.3

  1. Add arithematic operators to the vm

Design docs

  • Another possible imlplementation is register based vm
  • They are much more efficient since we can directly load and store values instead of repeatedly pushing and popping

16

  1. Here we start implementing the lexical part of the compiler
  2. We cahnge the siganture of interpret function to acept strings

16.1.2

  1. Start implementation of scanner
  2. has fields start, current and line

16.2

  1. Here we scan a token only when the compiler needs one
  2. Implement token type to contain the necessary values

16.3

  1. Add enum to hold possible tokens
  2. And make the scanner return the appropriate token

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