[reactos] 01/01: [CRT/ARM] Fix modulus on division (#3856)

[Roman Masanin]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=fd8baca9f2ef41a2e6859…

commit fd8baca9f2ef41a2e685936a94485a6e28552181
Author:     Roman Masanin <36927roma(a)gmail.com>
AuthorDate: Wed Jul 28 14:34:59 2021 +0300
Commit:     Stanislav Motylkov <x86corez(a)gmail.com>
CommitDate: Thu Jul 29 13:44:16 2021 +0300

    [CRT/ARM] Fix modulus on division (#3856)
    
    This fixes all tests added in 759bdedc. Addendum to f2bc1f0e.
    
    CORE-17607 CORE-17614 CORE-17604
---
 sdk/lib/crt/math/arm/__rt_div_worker.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sdk/lib/crt/math/arm/__rt_div_worker.h
b/sdk/lib/crt/math/arm/__rt_div_worker.h
index 2b658415a3f..c920ec528e3 100644
--- a/sdk/lib/crt/math/arm/__rt_div_worker.h
+++ b/sdk/lib/crt/math/arm/__rt_div_worker.h
@@ -87,7 +87,11 @@ __rt_div_worker(
     if (divisor > dividend)
     {
         result->data.quotient = 0;
-        result->data.modulus = divisor;
+#ifdef _SIGNED_DIV_
+        if (dividend_sign)
+            dividend = -(INT3264)dividend;
+#endif // _SIGNED_DIV_
+        result->data.modulus = dividend;
         return;
     }