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64-bit integer types #59

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msullivan opened this issue Aug 9, 2020 · 0 comments
Open

64-bit integer types #59

msullivan opened this issue Aug 9, 2020 · 0 comments
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enhancement

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@msullivan
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It would be nice to support 64-bit integer types

Probably the hardest part of this would be generalizing things so that a value can be split across registers?

Addition, subtraction, and multiplication are easy. Addition/subtraction can be done in two packets, even, I think ({add lo; add hi; compute carry}, {add in carry}).

Division is more painful. gcc emits calls to libgcc and libgcc's code cites TAOCP.
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@msullivan