X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=regis;a=blobdiff_plain;f=fixed.h;fp=fixed.h;h=dbc8bbea5586d0c9945bb9f1bce1e2aec8140fe3;hp=0000000000000000000000000000000000000000;hb=4ac276ea513d4460f9db8c43b4dbde5ebad652b5;hpb=46aa499cb189f9eb533e1e5a95a3770a0b3df8b4

diff --git a/fixed.h b/fixed.h
new file mode 100644
index 0000000..dbc8bbe
--- /dev/null
+++ b/fixed.h
@@ -0,0 +1,18 @@
+#ifndef FIXED_H_
+#define FIXED_H_
+
+#include <stdint.h>
+
+#define ftox16(x)		(int32_t)((x) * 65536.0f)
+#define itox16(x)		(int32_t)((x) << 16)
+
+#define x16tof(x)		(float)((x) / 65536.0f)
+#define x16toi(x)		((x) >> 16)
+
+#define x16mul(a, b)	(int32_t)(((int32_t)(a) >> 8) * ((int32_t)(b) >> 8))
+/*int32_t x16div(register int32_t num, register int32_t denom);*/
+#define x16div(a, b)	(int32_t)(((int64_t)(a) << 16) / (b))
+
+#define x16sq(x)		x16mul(x, x)
+
+#endif	/* FIXED_H_ */