--- trunk/src/devices/dev_bebox.c	2007/10/08 16:19:16	19
+++ trunk/src/devices/dev_bebox.c	2007/10/08 16:19:23	20
@@ -25,7 +25,7 @@
  *  SUCH DAMAGE.
  *   
  *
- *  $Id: dev_bebox.c,v 1.4 2005/10/26 14:37:03 debug Exp $
+ *  $Id: dev_bebox.c,v 1.7 2005/11/16 21:15:18 debug Exp $
  *
  *  Emulation of BeBox motherboard registers. See the following URL for more
  *  information:
@@ -39,19 +39,27 @@
 
 #include "cpu.h"
 #include "device.h"
+#include "devices.h"
 #include "machine.h"
 #include "memory.h"
 #include "misc.h"
 
 
-struct bebox_data {
-	/*  The 5 motherboard registers:  */
-	uint32_t	cpu0_intmask;
-	uint32_t	cpu1_intmask;
-	uint32_t	int_source;
-	uint32_t	xpi;
-	uint32_t	resets;
-};
+/*
+ *  check_cpu_masks():
+ *
+ *  BeBox interrupt enable bits are not allowed to be present in
+ *  both CPUs at the same time.
+ */
+static void check_cpu_masks(struct cpu *cpu, struct bebox_data *d)
+{
+	d->cpu0_int_mask &= 0x7fffffff;
+	d->cpu1_int_mask &= 0x7fffffff;
+	if ((d->cpu0_int_mask | d->cpu1_int_mask) !=
+	    (d->cpu0_int_mask ^ d->cpu1_int_mask))
+		fatal("check_cpu_masks(): BeBox cpu int masks"
+		    " collide!\n");
+}
 
 
 /*
@@ -68,6 +76,43 @@
 		idata = memory_readmax64(cpu, data, len);
 
 	switch (relative_addr) {
+
+	case 0x0f0:
+		if (writeflag == MEM_READ)
+			odata = d->cpu0_int_mask;
+		else {
+			if (idata & 0x80000000)
+				d->cpu0_int_mask |= idata;
+			else
+				d->cpu0_int_mask &= ~idata;
+			check_cpu_masks(cpu, d);
+		}
+		break;
+
+	case 0x1f0:
+		if (writeflag == MEM_READ)
+			odata = d->cpu1_int_mask;
+		else {
+			if (idata & 0x80000000)
+				d->cpu1_int_mask |= idata;
+			else
+				d->cpu1_int_mask &= ~idata;
+			check_cpu_masks(cpu, d);
+		}
+		break;
+
+	case 0x2f0:
+		if (writeflag == MEM_READ)
+			odata = d->int_status;
+		else {
+			if (idata & 0x80000000)
+				d->int_status |= idata;
+			else
+				d->int_status &= ~idata;
+			d->int_status &= 0x7fffffff;
+		}
+		break;
+
 	case 0x3f0:
 		if (writeflag == MEM_READ) {
 			odata = d->xpi;
@@ -113,7 +158,9 @@
 	memset(d, 0, sizeof(struct bebox_data));
 
 	memory_device_register(devinit->machine->memory, devinit->name,
-	    0x7ffff000, 0x500, dev_bebox_access, d, MEM_DEFAULT, NULL);
+	    0x7ffff000, 0x500, dev_bebox_access, d, DM_DEFAULT, NULL);
+
+	devinit->return_ptr = d;
 
 	return 1;
 }