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authorGwenolé Beauchesne <gbeauchesne@mandriva.org>2003-06-04 18:44:09 +0000
committerGwenolé Beauchesne <gbeauchesne@mandriva.org>2003-06-04 18:44:09 +0000
commit4cd6a4a5d7e49d54d53dcf4a6f3393d50bd88e8b (patch)
treeacd4001a266a8713495af7f1b2102b61e67113b0 /mdk-stage1/dietlibc/i386/ilogb.S
parent71b111ec6c4671667a19c6fbe0023d33422535d7 (diff)
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Import dietlibc 0.22 + other fixes for AMD64
Diffstat (limited to 'mdk-stage1/dietlibc/i386/ilogb.S')
-rw-r--r--mdk-stage1/dietlibc/i386/ilogb.S23
1 files changed, 23 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/i386/ilogb.S b/mdk-stage1/dietlibc/i386/ilogb.S
new file mode 100644
index 000000000..3bebd88ba
--- /dev/null
+++ b/mdk-stage1/dietlibc/i386/ilogb.S
@@ -0,0 +1,23 @@
+#
+# int ilogb ( double x );
+#
+# returns (int) log2 (fabs(x)) for x!=0
+# returns MIN_INT for x==0
+#
+
+.text
+.global ilogb
+.type ilogb,@function
+
+ilogb:
+ movl 8(%esp),%eax
+ addl %eax,%eax
+ jz .Lzero
+ shrl $21,%eax
+ subl $1023,%eax
+ ret
+
+.Lzero:
+ stc
+ rcrl %eax
+ ret