target-arm: fix addsub/subadd implementation

Signed-off-by: Chih-Min Chao <cmchao@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
(cherry picked from commit bb42e28bdb56a05faca83bd760c1581af2f73a4b)

diff --git a/target-arm/op_addsub.h b/target-arm/op_addsub.h
index 29f77ba18d5d4c7a82600e189e178b25692cb412..c02c92adfa2ba8b3b853ee3a38eafe62f274ff54 100644 (file)
--- a/target-arm/op_addsub.h
+++ b/target-arm/op_addsub.h
@@ -73,8 +73,8 @@ uint32_t HELPER(glue(PFX,subaddx))(uint32_t a, uint32_t b GE_ARG)
     uint32_t res = 0;
     DECLARE_GE;
 
-    ADD16(a, b, 0);
-    SUB16(a >> 16, b >> 16, 1);
+    ADD16(a, b >> 16, 0);
+    SUB16(a >> 16, b, 1);
     SET_GE;
     return res;
 }
@@ -84,8 +84,8 @@ uint32_t HELPER(glue(PFX,addsubx))(uint32_t a, uint32_t b GE_ARG)
     uint32_t res = 0;
     DECLARE_GE;
 
-    SUB16(a, b, 0);
-    ADD16(a >> 16, b >> 16, 1);
+    SUB16(a, b >> 16, 0);
+    ADD16(a >> 16, b, 1);
     SET_GE;
     return res;
 }