1 files changed, 2 insertions, 2 deletions

diff --git a/isa/checker.cpp b/isa/checker.cpp
index 6eaa15f..c6ab161 100644
--- a/isa/checker.cpp
+++ b/isa/checker.cpp
@@ -9,7 +9,7 @@ void checker::execute() {
     if (ctlregs[HALTED])
         return;
 
-    inst = decode(ctlregs[DATA_INSTRUCTION_FIELD_BUFFER],
+    inst = decode(ctlregs[FLAGS],
                   pc,
                   mem.fetch(pc),
                   interrupt);
@@ -21,7 +21,7 @@ void checker::execute() {
             addr = (addr + 1) & 07777;
             mem.store(*inst.init_address, addr);
         }
-        auto df = ctlregs[DATA_INSTRUCTION_FIELD_BUFFER] >> 3;
+        auto df = (ctlregs[FLAGS] & FLAG_DF) >> FLAG_DF_SHIFT;
         inst.final_address = (df << 12) | addr;
     } else {
         assert(!inst.need_autoinc_store);