diff --git a/emulator_shell.c b/emulator_shell.c
index 9bf21cc..08c90e9 100644
--- a/emulator_shell.c
+++ b/emulator_shell.c
@@ -412,15 +412,18 @@ int emulate8080(State8080* state) {
             }
             break;
         case 0x11:              // LXI D, word
+            {
             state->d = opcode[2];
             state->e = opcode[1];
             state->pc += 2;
+            }
             break;
         case 0x13:              // INX D
+            {
             state->e++;
             if (state->e == 0) {
                 state->d++;
-            }
+            }}
             break;
         case 0x19:              // DAD D
             {
@@ -440,19 +443,24 @@ int emulate8080(State8080* state) {
             break;
 
         case 0x21:              // LXI H, word
+            {
             state->h = opcode[2];
             state->l = opcode[1];
             state->pc += 2;
             break;
+            }
         case 0x23:              // INX H
+            {
             state->l++;
             if (state->l == 0) {
                 state->h++;
-            }
+            }}
             break;
         case 0x26:              // MVI H, byte
+            {
             state->h = opcode[1];
             state->pc++;
+            }
             break;
         case 0x29:              // DAD H
             {
@@ -625,8 +633,8 @@ int emulate8080(State8080* state) {
             }
             break;
         case 0xc9:              // RET
-            state->sp += 2;
             state->pc = (state->memory[state->sp+1] << 8) | state->memory[state->sp];
+            state->sp += 2;
             break;
         case 0xcd:              // CALL adress
             {