1 files changed, 1 insertions, 0 deletions

diff --git a/isa/checker.h b/isa/checker.h
index 1ea572b..d70997f 100644
--- a/isa/checker.h
+++ b/isa/checker.h
@@ -38,6 +38,7 @@ struct funcmem {
 struct checker {
     unsigned int acc = 0;
     unsigned int link = 0;
+    unsigned int mq = 0;
     unsigned int pc = 00200;
     std::array<unsigned int, NUM_CTLREGS> ctlregs;
     instruction_context inst;