thumb2: fix parallel addition/subtraction, (un)signed

1 files changed, 3 insertions, 0 deletions

diff --git a/CHANGELOG b/CHANGELOG
index c2cc889..33e85a7 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -7,6 +7,9 @@
   * support non-`*2` forms of coprocessor instructions
   * collapse `*2` encoding choice for coprocessor instructions into a paramter
     on the opcode (rather than distinct opcodes)
+* thumb2: use correct opcode table for parallel addition/subtractions
+  * the decoder reused the non-thumb encoding table, but thumb opcode/sizes are
+    encoded in a different order.
 
 several fixes from @Grond66:
 * ARMv7: support the RRX rotate mode.