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[Qemu-devel] int128_add assumes the result will not exceed 128bits?


From: Wizard
Subject: [Qemu-devel] int128_add assumes the result will not exceed 128bits?
Date: Thu, 9 Feb 2012 21:10:14 +0800

All, I am reading this code.

static inline Int128 int128_add(Int128 a, Int128 b){    Int128 r = {
a.lo + b.lo, a.hi + b.hi };    r.hi += (r.lo < a.lo) || (r.lo < b.lo);
   return r;}
This assumes the result r will not exceed 128 bits?--
Wizard



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