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-rw-r--r--runtime/arm/sysdeps.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/runtime/arm/sysdeps.h b/runtime/arm/sysdeps.h
index 3d6a702c..fd4ea61d 100644
--- a/runtime/arm/sysdeps.h
+++ b/runtime/arm/sysdeps.h
@@ -95,3 +95,43 @@ f:
.arch armv7
#endif
.fpu vfpv2
+
+
+
+// Endianness dependencies
+
+// Location of high and low word of first register pair (r0:r1)
+#ifdef ENDIANNESS_big
+#define Reg0HI r0
+#define Reg0LO r1
+#else
+#define Reg0HI r1
+#define Reg0LO r0
+#endif
+
+// Location of high and low word of second register pair (r2:r3)
+#ifdef ENDIANNESS_big
+#define Reg1HI r2
+#define Reg1LO r3
+#else
+#define Reg1HI r3
+#define Reg1LO r2
+#endif
+
+// Location of high and low word of third register pair (r4:r5)
+#ifdef ENDIANNESS_big
+#define Reg2HI r4
+#define Reg2LO r5
+#else
+#define Reg2HI r5
+#define Reg2LO r4
+#endif
+
+// Location of high and low word of fourth register pair (r6:r7)
+#ifdef ENDIANNESS_big
+#define Reg3HI r6
+#define Reg3LO r7
+#else
+#define Reg3HI r7
+#define Reg3LO r6
+#endif