tools/source/misc/fix16.cxx | 4 ++++
1 file changed, 4 insertions(+)
New commits:
commit 18a5df49938132ac6605b3fdd1f023b85f7ac31b
Author: Mike Kaganski <mike.kagan...@collabora.com>
AuthorDate: Thu Feb 29 14:57:21 2024 +0600
Commit: Mike Kaganski <mike.kagan...@collabora.com>
CommitDate: Thu Feb 29 12:50:12 2024 +0100
Restore a comment
Mistakenly removed in commit c2dca161c0ed455a962d23f8e2fcb64143c5e674
(Use <bit> instead of platform-specific intrinsics, 2024-02-29)
Change-Id: I6091a767aebcbb2543656cee2c27330fb6f9d16b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/164141
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kagan...@collabora.com>
diff --git a/tools/source/misc/fix16.cxx b/tools/source/misc/fix16.cxx
index 58c40704d931..5818d5c1e55f 100644
--- a/tools/source/misc/fix16.cxx
+++ b/tools/source/misc/fix16.cxx
@@ -76,6 +76,10 @@ fix16_t fix16_mul(fix16_t inArg0, fix16_t inArg1)
return result;
}
+/* 32-bit implementation of fix16_div. Fastest version for e.g. ARM Cortex M3.
+ * Performs 32-bit divisions repeatedly to reduce the remainder. For this to
+ * be efficient, the processor has to have 32-bit hardware division.
+ */
fix16_t fix16_div(fix16_t a, fix16_t b)
{
// This uses a hardware 32/32 bit division multiple times, until we have
