[VM][YM2203] Fix FTBFS with YM2203.

diff --git a/source/src/vm/ym2203.cpp b/source/src/vm/ym2203.cpp
index d46fa3d..b55cefc 100644 (file)
--- a/source/src/vm/ym2203.cpp
+++ b/source/src/vm/ym2203.cpp
@@ -209,25 +209,29 @@ uint32_t YM2203::read_io8(uint32_t addr)
                }
                break;
        case 2:
+               {
                        /* BUSY : x : PCMBUSY : ZERO : BRDY : EOS : FLAGB : FLAGA */
-               update_count();
-               update_interrupt();
-               uint32_t status = opna->ReadStatusEx() & ~0x80;
-               if(busy) {
-                       // from PC-88 machine language master bible (XM8 version 1.00)
-                       if(get_passed_usec(clock_busy) < (is_ym2608 ? 4.25 : 2.13)) {
-                               status |= 0x80;
-                       } else {
-                               busy = false;
+                       update_count();
+                       update_interrupt();
+                       uint32_t status = opna->ReadStatusEx() & ~0x80;
+                       if(busy) {
+                               // from PC-88 machine language master bible (XM8 version 1.00)
+                               if(get_passed_usec(clock_busy) < (is_ym2608 ? 4.25 : 2.13)) {
+                                       status |= 0x80;
+                               } else {
+                                       busy = false;
+                               }
                        }
+                       return status;
                }
-               return status;
                break;
        case 3:
-               if(ch1 == 8) {
-                       return opna->GetReg(0x100 | ch1);
+               {
+                       if(ch1 == 8) {
+                               return opna->GetReg(0x100 | ch1);
+                       }
+                       return data1;
                }
-               return data1;
                break;
        default:
                break;