From b173e4262f65800ea488b4494125284779a61547 Mon Sep 17 00:00:00 2001 From: Alexander Monakov Date: Tue, 14 Jan 2020 23:36:44 +0300 Subject: math: move x87-family remainder functions to C with inline asm --- src/math/x86_64/remainderl.c | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 src/math/x86_64/remainderl.c (limited to 'src/math/x86_64/remainderl.c') diff --git a/src/math/x86_64/remainderl.c b/src/math/x86_64/remainderl.c new file mode 100644 index 00000000..8cf75071 --- /dev/null +++ b/src/math/x86_64/remainderl.c @@ -0,0 +1,9 @@ +#include + +long double remainderl(long double x, long double y) +{ + unsigned short fpsr; + do __asm__ ("fprem1; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y)); + while (fpsr & 0x400); + return x; +} -- cgit 1.4.1