summaryrefslogtreecommitdiff
path: root/arch/frv/lib/__ucmpdi2.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/frv/lib/__ucmpdi2.S')
-rw-r--r--arch/frv/lib/__ucmpdi2.S45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/frv/lib/__ucmpdi2.S b/arch/frv/lib/__ucmpdi2.S
new file mode 100644
index 000000000000..d892f16ffaa9
--- /dev/null
+++ b/arch/frv/lib/__ucmpdi2.S
@@ -0,0 +1,45 @@
+/* __ucmpdi2.S: 64-bit unsigned compare
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+
+ .text
+ .p2align 4
+
+###############################################################################
+#
+# int __ucmpdi2(unsigned long long a [GR8:GR9],
+# unsigned long long b [GR10:GR11])
+#
+# - returns 0, 1, or 2 as a <, =, > b respectively.
+#
+###############################################################################
+ .globl __ucmpdi2
+ .type __ucmpdi2,@function
+__ucmpdi2:
+ or.p gr8,gr0,gr4
+ subcc gr8,gr10,gr0,icc0
+ setlos.p #0,gr8
+ bclr icc0,#2 ; a.msw < b.msw
+
+ setlos.p #2,gr8
+ bhilr icc0,#0 ; a.msw > b.msw
+
+ subcc.p gr9,gr11,gr0,icc1
+ setlos #0,gr8
+ setlos.p #2,gr9
+ setlos #1,gr7
+ cknc icc1,cc6
+ cor.p gr9,gr0,gr8, cc6,#1
+ cckls icc1,cc4, cc6,#1
+ andcr cc6,cc4,cc4
+ cor gr7,gr0,gr8, cc4,#1
+ bralr
+ .size __ucmpdi2, .-__ucmpdi2