--- previous/src/ioMemTabNEXT.c	2018/04/24 19:25:10	1.1
+++ previous/src/ioMemTabNEXT.c	2018/04/24 19:25:36	1.1.1.2
@@ -119,11 +119,11 @@ void SCR2_Read1(void)
 
 // Uint8 rtc_ram[32];
 
-Uint8 rtc_ram[32]={
-0x94,0x0f,0x40,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0xfb,0x6d,0x00,0x00,0x7B,0x00,
-0x00,0x00,0x65,0x6e,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x00,0x00,0x50,0x13
+Uint8 rtc_ram[32]={ // values from QEMU-NeXT
+0x94,0x0f,0x40,0x03,0x00,0x00,0x00,0x00,
+0x00,0x00,0xfb,0x6d,0x00,0x00,0x4b,0x00,
+0x41,0x00,0x20,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x84,0x7e
 };
 
 static char rtc_ram_info[1024];
@@ -370,41 +370,49 @@ void SCR2_Read3(void)
 
 /*
 *
-bits 0:2 cpu speed 02 25MHz
-bits 3:4 mem speed 0 120ns
-bits 5:6 video mem speed 0 120ns
-bits 8:11 board revision 0
-bits 12:15 cpu type 30 : station non turbo rev 0
-bits 16:23 dma type 01
-bits 24:27 reserved 0
-bits 28:31 slot id 0
-
-			
-0000 xxxxxxxxxx 0001  0001 xx 10 011
-
-00 00 11 2E
+bits 0:1 cpu speed; 0 = 40 MHz, 1 = 20 MHz, 2 = 25MHz, 3 = 33 MHz (meaningless on color Slab)
+bits 2:3 reserved: 0
+bits 4:5 mem speed; 0 = 120ns, 1 = 100ns, 2 = 80ns, 3 = 60ns (meaningless on color Slab)
+bits 6:7 video mem speed; 0 = 120ns, 1 = 100ns, 2 = 80ns, 3 = 60ns (meaningless on color Slab)
+bits 8:11 board revision; for 030 Cube: 0 = DCD input inverted, 1 = DCD polarity fixed, 2 = must disable DSP mem before reset; for all other systems: 0
+bits 12:15 cpu type; 0 = Cube 030, 1 = mono Slab, 2 = Cube 040, 3 = color Slab
+bits 16:23 dma rev: 1
+bits 24:27 reserved: 0
+bits 28:31 slot ID: 0
+
+
+for Cube 040:
+0000 0000 0000 0001 0011 0000 0101 0011
+00 01 20 52
+ 
+for Cube 030:
+0000 0000 0000 0001 0000 0001 0101 0011
+00 01 01 52
 */
 
 
 void SCR1_Read0(void)
 {
 	Log_Printf(LOG_WARN,"SCR1 read at $%08x PC=$%08x\n", IoAccessCurrentAddress,m68k_getpc());
-	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x00; 
+	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x00; // slot ID 0
 }
 void SCR1_Read1(void)
 {
 	Log_Printf(LOG_WARN,"SCR1 read at $%08x PC=$%08x\n", IoAccessCurrentAddress,m68k_getpc());
-	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x01; // dma rev
+	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x01; // dma rev 1
 }
 void SCR1_Read2(void)
 {
 	Log_Printf(LOG_WARN,"SCR1 read at $%08x PC=$%08x\n", IoAccessCurrentAddress,m68k_getpc());
-	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x20; // cpu type + rev
+    if(ConfigureParams.System.nCpuLevel == 3)
+        IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x01; // Cube 030, board rev 1
+    else
+        IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x20; // Cube 040, board rev 0
 }
 void SCR1_Read3(void)
 {
 	Log_Printf(LOG_WARN,"SCR1 read at $%08x PC=$%08x\n", IoAccessCurrentAddress,m68k_getpc());
-	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x02; // speed + memory
+	IoMem[IoAccessCurrentAddress & 0x1FFFF]=0x52; // vmem speed 100ns, mem speed 100ns, cpu speed 25 MHz
 }
 
 void IntRegStatRead(void) {