[VM][FMTOWNS][CDROM] Fix not play CDDA with command SPAM.

diff --git a/source/src/vm/fmtowns/towns_cdrom.cpp b/source/src/vm/fmtowns/towns_cdrom.cpp
index 6e85195..627a53b 100644 (file)
--- a/source/src/vm/fmtowns/towns_cdrom.cpp
+++ b/source/src/vm/fmtowns/towns_cdrom.cpp
@@ -1991,9 +1991,22 @@ void TOWNS_CDROM::play_cdda_from_cmd()
                status_media_changed(false);
                return;
        }
+       uint32_t start_tmp = FROM_BCD(f_start) + (FROM_BCD(s_start) + FROM_BCD(m_start) * 60) * 75;
+       uint32_t end_tmp = FROM_BCD(f_end)   + (FROM_BCD(s_end)   + FROM_BCD(m_end) * 60) * 75;
+       /*!
+        * @note Workaround for command SPAM, i.e. Puyo Puyo.
+        * @note 20201115 K.O
+        */
+       if(cdda_status == CDDA_PLAYING) {
+               if((start_tmp == cdda_start_frame) && (end_tmp == cdda_end_frame)) {
+                       // Dummy
+                   set_status_3(true, 1, TOWNS_CD_STATUS_ACCEPT, 0, 0x00, 0x00);
+                       return;
+               }
+       }
        {
-               cdda_start_frame = FROM_BCD(f_start) + (FROM_BCD(s_start) + FROM_BCD(m_start) * 60) * 75;
-               cdda_end_frame   = FROM_BCD(f_end)   + (FROM_BCD(s_end)   + FROM_BCD(m_end) * 60) * 75;
+               cdda_start_frame = start_tmp;
+               cdda_end_frame   = end_tmp;
                int track = get_track(cdda_start_frame);
                if(!(toc_table[track].is_audio)) {
                        status_hardware_error(false); // OK?