[VM][FM77] Fix wrong answer at $FD04.Thanks to Ryu Takegami.

diff --git a/source/src/vm/fm7/fm7_mainio.cpp b/source/src/vm/fm7/fm7_mainio.cpp
index 822b1b9..4d1b312 100644 (file)
--- a/source/src/vm/fm7/fm7_mainio.cpp
+++ b/source/src/vm/fm7/fm7_mainio.cpp
@@ -659,6 +659,8 @@ uint8_t FM7_MAINIO::get_fd04(void)
        if(stat_kanjirom)     val |= 0x20;
 # if defined(_FM77L4)
        val |= (display->read_signal(SIG_DISPLAY_EXTRA_MODE) & 0x18);
+# else
+       val |= 0x18; // For NON-77L4, these bit must be '1'.Thanks to Ryu Takegami.
 # endif
 #else
        val |= 0x7c;