diff --git a/common/CPU/MC6809/mc6809i.v b/common/CPU/MC6809/mc6809i.v
index 5725aab4..d3a92d4a 100644
--- a/common/CPU/MC6809/mc6809i.v
+++ b/common/CPU/MC6809/mc6809i.v
@@ -1971,10 +1971,13 @@ begin
                     else if (Inst1 == OPCODE_INH_SEX)
                     begin
                         a_nxt = {8{b[7]}};
+                        cc_nxt[CC_N_BIT] = b[7];
+                        cc_nxt[CC_Z_BIT] = {b == 8'H00};
+                        cc_nxt[CC_V_BIT] = 1'b0;
                         rLIC = 1'b1; // Instruction done!
                         rAVMA = 1'b1;
                         CpuState_nxt = CPUSTATE_FETCH_I1;
-                        end
+                    end
                     else if (Inst1 == OPCODE_INH_ABX)
                     begin
                         x_nxt  =  x + b;
diff --git a/common/CPU/MC6809/mc6809is.v b/common/CPU/MC6809/mc6809is.v
index ebdc88be..d0d2086e 100644
--- a/common/CPU/MC6809/mc6809is.v
+++ b/common/CPU/MC6809/mc6809is.v
@@ -1969,10 +1969,13 @@ begin
                     else if (Inst1 == OPCODE_INH_SEX)
                     begin
                         a_nxt = {8{b[7]}};
+                        cc_nxt[CC_N_BIT] = b[7];
+                        cc_nxt[CC_Z_BIT] = {b == 8'H00};
+                        cc_nxt[CC_V_BIT] = 1'b0;
                         rLIC = 1'b1; // Instruction done!
                         rAVMA = 1'b1;
                         CpuState_nxt = CPUSTATE_FETCH_I1;
-                        end
+                    end
                     else if (Inst1 == OPCODE_INH_ABX)
                     begin
                         x_nxt  =  x + b;