diff --git a/test/ilog2.asm b/test/ilog2.asm
new file mode 100644
index 00000000..2796af80
--- /dev/null
+++ b/test/ilog2.asm
@@ -0,0 +1,271 @@
+%use ifunc
+
+	db ilog2(0x1)
+	db ilog2(0x2)
+	db ilog2(0x4)
+	db ilog2(0x8)
+	db ilog2(0x10)
+	db ilog2(0x20)
+	db ilog2(0x40)
+	db ilog2(0x80)
+	db ilog2(0x100)
+	db ilog2(0x200)
+	db ilog2(0x400)
+	db ilog2(0x800)
+	db ilog2(0x1000)
+	db ilog2(0x2000)
+	db ilog2(0x4000)
+	db ilog2(0x8000)
+	db ilog2(0x10000)
+	db ilog2(0x20000)
+	db ilog2(0x40000)
+	db ilog2(0x80000)
+	db ilog2(0x100000)
+	db ilog2(0x200000)
+	db ilog2(0x400000)
+	db ilog2(0x800000)
+	db ilog2(0x1000000)
+	db ilog2(0x2000000)
+	db ilog2(0x4000000)
+	db ilog2(0x8000000)
+	db ilog2(0x10000000)
+	db ilog2(0x20000000)
+	db ilog2(0x40000000)
+	db ilog2(0x80000000)
+
+	db ilog2w(0x1)
+	db ilog2w(0x2)
+	db ilog2w(0x4)
+	db ilog2w(0x8)
+	db ilog2w(0x10)
+	db ilog2w(0x20)
+	db ilog2w(0x40)
+	db ilog2w(0x80)
+	db ilog2w(0x100)
+	db ilog2w(0x200)
+	db ilog2w(0x400)
+	db ilog2w(0x800)
+	db ilog2w(0x1000)
+	db ilog2w(0x2000)
+	db ilog2w(0x4000)
+	db ilog2w(0x8000)
+	db ilog2w(0x10000)
+	db ilog2w(0x20000)
+	db ilog2w(0x40000)
+	db ilog2w(0x80000)
+	db ilog2w(0x100000)
+	db ilog2w(0x200000)
+	db ilog2w(0x400000)
+	db ilog2w(0x800000)
+	db ilog2w(0x1000000)
+	db ilog2w(0x2000000)
+	db ilog2w(0x4000000)
+	db ilog2w(0x8000000)
+	db ilog2w(0x10000000)
+	db ilog2w(0x20000000)
+	db ilog2w(0x40000000)
+	db ilog2w(0x80000000)
+
+	db ilog2f(0x1)
+	db ilog2f(0x2)
+	db ilog2f(0x4)
+	db ilog2f(0x8)
+	db ilog2f(0x10)
+	db ilog2f(0x20)
+	db ilog2f(0x40)
+	db ilog2f(0x80)
+	db ilog2f(0x100)
+	db ilog2f(0x200)
+	db ilog2f(0x400)
+	db ilog2f(0x800)
+	db ilog2f(0x1000)
+	db ilog2f(0x2000)
+	db ilog2f(0x4000)
+	db ilog2f(0x8000)
+	db ilog2f(0x10000)
+	db ilog2f(0x20000)
+	db ilog2f(0x40000)
+	db ilog2f(0x80000)
+	db ilog2f(0x100000)
+	db ilog2f(0x200000)
+	db ilog2f(0x400000)
+	db ilog2f(0x800000)
+	db ilog2f(0x1000000)
+	db ilog2f(0x2000000)
+	db ilog2f(0x4000000)
+	db ilog2f(0x8000000)
+	db ilog2f(0x10000000)
+	db ilog2f(0x20000000)
+	db ilog2f(0x40000000)
+	db ilog2f(0x80000000)
+
+	db ilog2c(0x1)
+	db ilog2c(0x2)
+	db ilog2c(0x4)
+	db ilog2c(0x8)
+	db ilog2c(0x10)
+	db ilog2c(0x20)
+	db ilog2c(0x40)
+	db ilog2c(0x80)
+	db ilog2c(0x100)
+	db ilog2c(0x200)
+	db ilog2c(0x400)
+	db ilog2c(0x800)
+	db ilog2c(0x1000)
+	db ilog2c(0x2000)
+	db ilog2c(0x4000)
+	db ilog2c(0x8000)
+	db ilog2c(0x10000)
+	db ilog2c(0x20000)
+	db ilog2c(0x40000)
+	db ilog2c(0x80000)
+	db ilog2c(0x100000)
+	db ilog2c(0x200000)
+	db ilog2c(0x400000)
+	db ilog2c(0x800000)
+	db ilog2c(0x1000000)
+	db ilog2c(0x2000000)
+	db ilog2c(0x4000000)
+	db ilog2c(0x8000000)
+	db ilog2c(0x10000000)
+	db ilog2c(0x20000000)
+	db ilog2c(0x40000000)
+	db ilog2c(0x80000000)
+
+%ifdef ERROR
+	db ilog2(0x0)
+	db ilog2(0x3)
+	db ilog2(0x5)
+	db ilog2(0x9)
+	db ilog2(0x10)
+	db ilog2(0x30)
+	db ilog2(0x50)
+	db ilog2(0x90)
+	db ilog2(0x100)
+	db ilog2(0x300)
+	db ilog2(0x500)
+	db ilog2(0x900)
+	db ilog2(0x1000)
+	db ilog2(0x3000)
+	db ilog2(0x5000)
+	db ilog2(0x9000)
+	db ilog2(0x10000)
+	db ilog2(0x30000)
+	db ilog2(0x50000)
+	db ilog2(0x90000)
+	db ilog2(0x100000)
+	db ilog2(0x300000)
+	db ilog2(0x500000)
+	db ilog2(0x900000)
+	db ilog2(0x1000000)
+	db ilog2(0x3000000)
+	db ilog2(0x5000000)
+	db ilog2(0x9000000)
+	db ilog2(0x10000000)
+	db ilog2(0x30000000)
+	db ilog2(0x50000000)
+	db ilog2(0x90000000)
+%endif
+
+%ifdef WARNING
+	db ilog2w(0x0)
+	db ilog2w(0x3)
+	db ilog2w(0x5)
+	db ilog2w(0x9)
+	db ilog2w(0x10)
+	db ilog2w(0x30)
+	db ilog2w(0x50)
+	db ilog2w(0x90)
+	db ilog2w(0x100)
+	db ilog2w(0x300)
+	db ilog2w(0x500)
+	db ilog2w(0x900)
+	db ilog2w(0x1000)
+	db ilog2w(0x3000)
+	db ilog2w(0x5000)
+	db ilog2w(0x9000)
+	db ilog2w(0x10000)
+	db ilog2w(0x30000)
+	db ilog2w(0x50000)
+	db ilog2w(0x90000)
+	db ilog2w(0x100000)
+	db ilog2w(0x300000)
+	db ilog2w(0x500000)
+	db ilog2w(0x900000)
+	db ilog2w(0x1000000)
+	db ilog2w(0x3000000)
+	db ilog2w(0x5000000)
+	db ilog2w(0x9000000)
+	db ilog2w(0x10000000)
+	db ilog2w(0x30000000)
+	db ilog2w(0x50000000)
+	db ilog2w(0x90000000)
+%endif
+
+	db ilog2f(0x0)
+	db ilog2f(0x1)
+	db ilog2f(0x3)
+	db ilog2f(0x5)
+	db ilog2f(0x9)
+	db ilog2f(0x10)
+	db ilog2f(0x30)
+	db ilog2f(0x50)
+	db ilog2f(0x90)
+	db ilog2f(0x100)
+	db ilog2f(0x300)
+	db ilog2f(0x500)
+	db ilog2f(0x900)
+	db ilog2f(0x1000)
+	db ilog2f(0x3000)
+	db ilog2f(0x5000)
+	db ilog2f(0x9000)
+	db ilog2f(0x10000)
+	db ilog2f(0x30000)
+	db ilog2f(0x50000)
+	db ilog2f(0x90000)
+	db ilog2f(0x100000)
+	db ilog2f(0x300000)
+	db ilog2f(0x500000)
+	db ilog2f(0x900000)
+	db ilog2f(0x1000000)
+	db ilog2f(0x3000000)
+	db ilog2f(0x5000000)
+	db ilog2f(0x9000000)
+	db ilog2f(0x10000000)
+	db ilog2f(0x30000000)
+	db ilog2f(0x50000000)
+	db ilog2f(0x90000000)
+
+	db ilog2c(0x0)
+	db ilog2c(0x1)
+	db ilog2c(0x3)
+	db ilog2c(0x5)
+	db ilog2c(0x9)
+	db ilog2c(0x10)
+	db ilog2c(0x30)
+	db ilog2c(0x50)
+	db ilog2c(0x90)
+	db ilog2c(0x100)
+	db ilog2c(0x300)
+	db ilog2c(0x500)
+	db ilog2c(0x900)
+	db ilog2c(0x1000)
+	db ilog2c(0x3000)
+	db ilog2c(0x5000)
+	db ilog2c(0x9000)
+	db ilog2c(0x10000)
+	db ilog2c(0x30000)
+	db ilog2c(0x50000)
+	db ilog2c(0x90000)
+	db ilog2c(0x100000)
+	db ilog2c(0x300000)
+	db ilog2c(0x500000)
+	db ilog2c(0x900000)
+	db ilog2c(0x1000000)
+	db ilog2c(0x3000000)
+	db ilog2c(0x5000000)
+	db ilog2c(0x9000000)
+	db ilog2c(0x10000000)
+	db ilog2c(0x30000000)
+	db ilog2c(0x50000000)
+	db ilog2c(0x90000000)