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implemented atoi, atol, and atoll in assembly #639

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implemented atoi, atol, and atoll in assembly #639

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@ZERICO2005 ZERICO2005 commented Sep 23, 2025 •
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Changes:

  • Implemented atoi, atol, atoll, strtol, and strtoul in assembly.
  • Fixed negative unsigned overflow in strtoull.
  • Optimized llmulu_b
CC per digit
atoi   :    21F +  4R +  3W +  1
atol   :    32F +  4R +  3W +  1
strtol : 79-85F + 13R + 12W + 21

atoi, atol, and atoll now have their own dedicated routines which offer a good performance boost compared to wrapping strtol/strtoll. This is because they don't need to track endptr or overflow, and they only work with base 10.

@ZERICO2005 ZERICO2005 marked this pull request as ready for review September 27, 2025 03:55
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