tic4x: sign extension using shifts

[deliverable/binutils-gdb.git] / include / opcode / tic4x.h

diff --git a/include/opcode/tic4x.h b/include/opcode/tic4x.h
index 66b4ebfd0826b495a97f77694d8a7605e01f3ddf..04e3f0853d2b8eabd5408eb32e115f65dc00c01e 100644 (file)
--- a/include/opcode/tic4x.h
+++ b/include/opcode/tic4x.h
@@ -23,11 +23,13 @@
 #define IS_CPU_TIC4X(v) ((v) ==  0 || (v) == 40 || (v) == 44)
 
 /* Define some bitfield extraction/insertion macros.  */
-#define EXTR(inst, m, l)          ((inst) << (31 - (m)) >> (31 - ((m) - (l)))) 
-#define EXTRU(inst, m, l)         EXTR ((unsigned long)(inst), (m), (l))
-#define EXTRS(inst, m, l)         EXTR ((long)(inst), (m), (l))
-#define INSERTU(inst, val, m, l)  (inst |= ((val) << (l))) 
-#define INSERTS(inst, val, m, l)  INSERTU (inst, ((val) & ((1 << ((m) - (l) + 1)) - 1)), m, l)
+#define EXTRU(inst, m, l) \
+  (((inst) >> (l)) & ((2u << ((m) - (l))) - 1))
+#define EXTRS(inst, m, l) \
+  ((int) ((EXTRU (inst, m, l) ^ (1u << ((m) - (l)))) - (1u << ((m) - (l)))))
+#define INSERTU(inst, val, m, l) \
+  ((inst) |= ((val) & ((2u << ((m) - (l))) - 1)) << (l))
+#define INSERTS INSERTU
 
 /* Define register numbers.  */
 typedef enum