[FIRMWARE] DSK selection feature for upcoming Amstrad core

osd.c

@@ -608,15 +608,6 @@ unsigned char OsdGetCtrl(void)
        (user_io_core_type() == CORE_TYPE_8BIT))
       c1 = OsdKeyGet();
 
-    // add front menu button
-    if (!CheckButton())
-        delay = GetTimer(BUTTONDELAY);
-    else if (CheckTimer(delay))
-    {
-        c1 = KEY_MENU;
-        delay = GetTimer(-1);
-    }
-
     // generate normal "key-pressed" event
     c = 0;
     if (c1 != c2)
@@ -643,6 +634,15 @@ unsigned char OsdGetCtrl(void)
         }
     }
 
+    // currently no key pressed
+    if(!c) {
+      static unsigned char last_but = 0;
+      unsigned char but = CheckButton();
+      if(but && !last_but) c = KEY_MENU;
+      if(!but && last_but) c = KEY_MENU | KEY_UPSTROKE;
+      last_but = but;
+    }
+
     return(c);
 }
 

user_io.c

@@ -22,6 +22,8 @@ extern fileTYPE file;
 extern char s[40];
 extern DIRENTRY DirEntry[MAXDIRENTRIES];
 extern unsigned char nDirEntries;
+extern unsigned char iSelectedEntry;
+
 
 // mouse and keyboard emulation state
 typedef enum { EMU_NONE, EMU_MOUSE, EMU_JOY0, EMU_JOY1 } emu_mode_t;
@@ -455,6 +457,12 @@ void user_io_file_tx(fileTYPE *file, unsigned char index) {
   SPI(index);
   DisableFpga();
 
+  // send directory entry (for alpha amstrad core)
+  EnableFpga();
+  SPI(UIO_FILE_INFO);
+  spi_write((void*)(DirEntry+iSelectedEntry), sizeof(DIRENTRY));
+  DisableFpga();
+
   // prepare transmission of new file
   EnableFpga();
   SPI(UIO_FILE_TX);

user_io.h

@@ -55,6 +55,7 @@
 #define UIO_FILE_TX     0x53
 #define UIO_FILE_TX_DAT 0x54
 #define UIO_FILE_INDEX  0x55
+#define UIO_FILE_INFO   0x56
 
 #define JOY_RIGHT       0x01
 #define JOY_LEFT        0x02