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Support for range-limited integer arithmetic #22

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pliniker opened this issue Jul 7, 2020 · 0 comments
Open

Support for range-limited integer arithmetic #22

pliniker opened this issue Jul 7, 2020 · 0 comments
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book-section Describes a part or chapter of the book that needs to be written compiler Area: compiling medium Some experience and/or subject matter knowledge required needs documentation Code documentation needs improvement needs tests Testing needs improvement parser Area: lexing and parsing vm Area: virtual machine

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pliniker commented Jul 7, 2020 •
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The TaggedPtr type allows for size_of::<isize>() * 8 - 2 bits of integer to be stored in a pointer.

Support for numbers needs to be implemented:

  1. in the parser
  2. in the compiler (+, -, integer div, *) opcodes
  3. in the VM

This initial implementation should return RuntimeError for values and results that fall outside of the supported TaggedPtr range.

A short chapter of the book might be written to describe this.

Consider splitting this issue into multiple issues to break it up, perhaps an issue for each area of the code and one for documentation.
@pliniker pliniker added book-section Describes a part or chapter of the book that needs to be written compiler Area: compiling medium Some experience and/or subject matter knowledge required needs documentation Code documentation needs improvement needs tests Testing needs improvement parser Area: lexing and parsing vm Area: virtual machine labels Jul 7, 2020
@pliniker pliniker mentioned this issue Jul 7, 2020
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book-section Describes a part or chapter of the book that needs to be written compiler Area: compiling medium Some experience and/or subject matter knowledge required needs documentation Code documentation needs improvement needs tests Testing needs improvement parser Area: lexing and parsing vm Area: virtual machine
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