feat: add gzip and new headers

1 files changed, 30 insertions, 0 deletions

diff --git a/lib/libm/floorf.c b/lib/libm/floorf.c
new file mode 100644
index 00000000..cd9e99bc
--- /dev/null
+++ b/lib/libm/floorf.c
@@ -0,0 +1,30 @@
+#include "libm.h"
+
+float floorf(float x)
+{
+	union {
+		float f;
+		uint32_t i;
+	} u = { x };
+	int e = (int)(u.i >> 23 & 0xff) - 0x7f;
+	uint32_t m;
+
+	if (e >= 23)
+		return x;
+	if (e >= 0) {
+		m = 0x007fffff >> e;
+		if ((u.i & m) == 0)
+			return x;
+		FORCE_EVAL(x + 0x1p120f);
+		if (u.i >> 31)
+			u.i += m;
+		u.i &= ~m;
+	} else {
+		FORCE_EVAL(x + 0x1p120f);
+		if (u.i >> 31 == 0)
+			u.i = 0;
+		else if (u.i << 1)
+			u.f = -1.0;
+	}
+	return u.f;
+}