diff --git a/src/chipset/ali1429.c b/src/chipset/ali1429.c
index 08cc6ff14..da8ded3ab 100644
--- a/src/chipset/ali1429.c
+++ b/src/chipset/ali1429.c
@@ -38,17 +38,19 @@
 #include <86box/smram.h>
 #include <86box/chipset.h>
 
-#define disabled_shadow (MEM_READ_EXTANY | MEM_WRITE_EXTANY)
+#define disabled_shadow		(MEM_READ_EXTANY | MEM_WRITE_EXTANY)
+
 
 #ifdef ENABLE_ALI1429_LOG
 int ali1429_do_log = ENABLE_ALI1429_LOG;
+
+
 static void
 ali1429_log(const char *fmt, ...)
 {
     va_list ap;
 
-    if (ali1429_do_log)
-    {
+    if (ali1429_do_log) {
         va_start(ap, fmt);
         pclog_ex(fmt, ap);
         va_end(ap);
@@ -58,17 +60,19 @@ ali1429_log(const char *fmt, ...)
 #define ali1429_log(fmt, ...)
 #endif
 
+
 typedef struct
 {
-    uint8_t index, cfg_locked,
-        regs[256];
+    uint8_t	index, cfg_locked,
+		regs[256];
 
-    smram_t *smram;
+    smram_t *	smram;
 } ali1429_t;
 
-static void ali1429_shadow_recalc(ali1429_t *dev)
-{
 
+static void
+ali1429_shadow_recalc(ali1429_t *dev)
+{
     uint32_t base, i, can_write, can_read;
 
     shadowbios = (dev->regs[0x13] & 0x40) && (dev->regs[0x14] & 0x01);
@@ -77,8 +81,7 @@ static void ali1429_shadow_recalc(ali1429_t *dev)
     can_write = (dev->regs[0x14] & 0x02) ? MEM_WRITE_INTERNAL : MEM_WRITE_EXTANY;
     can_read = (dev->regs[0x14] & 0x01) ? MEM_READ_INTERNAL : MEM_READ_EXTANY;
 
-    for (i = 0; i < 8; i++)
-    {
+    for (i = 0; i < 8; i++) {
         base = 0xc0000 + (i << 15);
 
         if (dev->regs[0x13] & (1 << i))
@@ -87,56 +90,61 @@ static void ali1429_shadow_recalc(ali1429_t *dev)
             mem_set_mem_state_both(base, 0x8000, disabled_shadow);
     }
 
-    flushmmucache();
+    flushmmucache_nopc();
 }
 
+
 static void
 ali1429_write(uint16_t addr, uint8_t val, void *priv)
 {
     ali1429_t *dev = (ali1429_t *)priv;
 
-    switch (addr)
-    {
-    case 0x22:
-        dev->index = val;
-        break;
+    switch (addr) {
+	case 0x22:
+		dev->index = val;
+		break;
 
-    case 0x23:
-        if (dev->index != 0x03)
-            ali1429_log("M1429: dev->regs[%02x] = %02x\n", dev->index, val);
+	case 0x23:
+#ifdef ENABLE_ALI1429_LOG
+		if (dev->index != 0x03)
+			ali1429_log("M1429: dev->regs[%02x] = %02x\n", dev->index, val);
+#endif
 
-        if (dev->index == 0x03)
-            dev->cfg_locked = !(val == 0xc5);
+		if (dev->index == 0x03)
+			dev->cfg_locked = !(val == 0xc5);
 
-        if (!dev->cfg_locked)
-        {
-            dev->regs[dev->index] = val;
+		if (!dev->cfg_locked) {
+			dev->regs[dev->index] = val;
 
-            switch (dev->index)
-            {
-            case 0x13:
-            case 0x14:
-                ali1429_shadow_recalc(dev);
-                break;
+			switch (dev->index) {
+				case 0x13: case 0x14:
+					ali1429_shadow_recalc(dev);
+					break;
 
-            case 0x18:
-                cpu_cache_ext_enabled = !!(val & 2);
-                cpu_update_waitstates();
-                break;
-            }
-        }
-
-        break;
+				case 0x18:
+					cpu_cache_ext_enabled = !!(val & 2);
+					cpu_update_waitstates();
+					break;
+			}
+		}
+		break;
     }
 }
 
+
 static uint8_t
 ali1429_read(uint16_t addr, void *priv)
 {
     ali1429_t *dev = (ali1429_t *)priv;
-    return (addr == 0x23) ? dev->regs[dev->index] : 0xff;
+    uint8_t ret = 0xff;
+
+    if ((addr == 0x23) && (dev->index < 0xc0))
+	ret = dev->regs[dev->index];
+
+    return ret;
 }
 
+
 static void
 ali1429_close(void *priv)
 {
@@ -145,16 +153,16 @@ ali1429_close(void *priv)
     free(dev);
 }
 
+
 static void *
 ali1429_init(const device_t *info)
 {
     ali1429_t *dev = (ali1429_t *)malloc(sizeof(ali1429_t));
     memset(dev, 0, sizeof(ali1429_t));
 
-    /*
-    M1429 Ports:
-    22h Index Port
-    23h Data Port
+    /* M1429 Ports:
+		22h	Index Port
+		23h	Data Port
     */
     io_sethandler(0x0022, 0x0002, ali1429_read, NULL, NULL, ali1429_write, NULL, NULL, dev);
 
@@ -167,6 +175,7 @@ ali1429_init(const device_t *info)
     return dev;
 }
 
+
 const device_t ali1429_device = {
     "ALi M1429",
     0,
@@ -174,7 +183,8 @@ const device_t ali1429_device = {
     ali1429_init,
     ali1429_close,
     NULL,
-    {NULL},
+    { NULL },
     NULL,
     NULL,
-    NULL};
+    NULL
+};