newlib: update

git-svn-id: svn://kolibrios.org@1906 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-03-11 18:52:24 +00:00
parent a316fa7c9d
commit 2336060a0c
297 changed files with 26930 additions and 2094 deletions
@@ -0,0 +1,37 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+
+	.file	"ilogb.S"
+	.text
+	.align 4
+.globl _ilogb
+	.def	_ilogb;	.scl	2;	.type	32;	.endef
+_ilogb:
+
+	fldl	4(%esp)
+/* I added the following ugly construct because ilogb(+-Inf) is
+   required to return INT_MAX in ISO C99.
+   -- jakub@redhat.com.  */
+	fxam			/* Is NaN or +-Inf?  */
+	fstsw   %ax
+	movb    $0x45, %dh
+	andb    %ah, %dh
+	cmpb    $0x05, %dh
+	je      1f		/* Is +-Inf, jump.  */
+
+	fxtract
+	pushl	%eax
+	fstp	%st
+
+	fistpl	(%esp)
+	fwait
+	popl	%eax
+
+	ret
+
+1:	fstp	%st
+	movl	$0x7fffffff, %eax
+	ret