Fix bugs 145 and 323, preemption and apply on ARM.

src/arm/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 146 matching lines @@
   p11 = 11,
   p12 = 12,
   p13 = 13,
   p14 = 14,
   p15 = 15
 };
 
 
 // Condition field in instructions
 enum Condition {
-  eq =  0 << 28,
-  ne =  1 << 28,
-  cs =  2 << 28,
-  hs =  2 << 28,
-  cc =  3 << 28,
-  lo =  3 << 28,
-  mi =  4 << 28,
-  pl =  5 << 28,
-  vs =  6 << 28,
-  vc =  7 << 28,
-  hi =  8 << 28,
-  ls =  9 << 28,
-  ge = 10 << 28,
-  lt = 11 << 28,
-  gt = 12 << 28,
-  le = 13 << 28,
-  al = 14 << 28
+  eq =  0 << 28,  // Z set            equal.
+  ne =  1 << 28,  // Z clear          not equal.
+  cs =  2 << 28,  // C set            unsigned higher or same.
+  hs =  2 << 28,  // C set            unsigned higher or same.
+  cc =  3 << 28,  // C clear          unsigned lower.
+  lo =  3 << 28,  // C clear          unsigned lower.
+  mi =  4 << 28,  // N set            negative.
+  pl =  5 << 28,  // N clear          positive or zero.
+  vs =  6 << 28,  // V set            overflow.
+  vc =  7 << 28,  // V clear          no overflow.
+  hi =  8 << 28,  // C set, Z clear   unsigned higher.
+  ls =  9 << 28,  // C clear or Z set unsigned lower or same.
+  ge = 10 << 28,  // N == V           greater or equal.
+  lt = 11 << 28,  // N != V           less than.
+  gt = 12 << 28,  // Z clear, N == V  greater than.
+  le = 13 << 28,  // Z set or N != V  less then or equal
+  al = 14 << 28   //                  always.
 };
 
 
 // Returns the equivalent of !cc.
 INLINE(Condition NegateCondition(Condition cc));
 
 
 // Corresponds to transposing the operands of a comparison.
 inline Condition ReverseCondition(Condition cc) {
   switch (cc) {
@@ skipping 586 matching lines @@
   void link_to(Label* L, Label* appendix);
   void next(Label* L);
 
   // Record reloc info for current pc_
   void RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data = 0);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_ARM_H_