--- np2/i386c/ia32/paging.c	2004/06/15 13:50:13	1.25
+++ np2/i386c/ia32/paging.c	2011/01/15 17:17:23	1.31
@@ -1,5 +1,3 @@
-/*	$Id: paging.c,v 1.25 2004/06/15 13:50:13 monaka Exp $	*/
-
 /*
  * Copyright (c) 2003-2004 NONAKA Kimihiro
  * All rights reserved.
@@ -12,8 +10,6 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@@ -184,16 +180,18 @@ static const UINT8 page_access_bit[32] =
  * +- CR3(物理アドレス)
  */
 
-static UINT32 MEMCALL paging(const UINT32 laddr, const int ucrw) GCC_ATTR_REGPARM;
+static UINT32 MEMCALL paging(const UINT32 laddr, const int ucrw);
 #if defined(IA32_SUPPORT_TLB)
-static void MEMCALL tlb_update(const UINT32 laddr, const UINT entry, const int ucrw) GCC_ATTR_REGPARM;
+static void MEMCALL tlb_update(const UINT32 laddr, const UINT entry, const int ucrw);
 #endif
 
-#if defined(IA32_PAGING_EACHSIZE)
+#define	PAGE_SIZE	0x1000
+#define	PAGE_MASK	(PAGE_SIZE - 1)
+
 UINT8 MEMCALL
 cpu_memory_access_la_RMW_b(UINT32 laddr, UINT32 (*func)(UINT32, void *), void *arg)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE;
+	const int ucrw = CPU_PAGE_WRITE_DATA|CPU_STAT_USER_MODE;
 	UINT32 result, value;
 	UINT32 paddr;
 
@@ -208,12 +206,12 @@ cpu_memory_access_la_RMW_b(UINT32 laddr,
 UINT16 MEMCALL
 cpu_memory_access_la_RMW_w(UINT32 laddr, UINT32 (*func)(UINT32, void *), void *arg)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE;
+	const int ucrw = CPU_PAGE_WRITE_DATA|CPU_STAT_USER_MODE;
 	UINT32 result, value;
 	UINT32 paddr[2];
 
 	paddr[0] = paging(laddr, ucrw);
-	if ((laddr + 1) & 0x00000fff) {
+	if ((laddr + 1) & PAGE_MASK) {
 		value = cpu_memoryread_w(paddr[0]);
 		result = (*func)(value, arg);
 		cpu_memorywrite_w(paddr[0], (UINT16)result);
@@ -231,13 +229,13 @@ cpu_memory_access_la_RMW_w(UINT32 laddr,
 UINT32 MEMCALL
 cpu_memory_access_la_RMW_d(UINT32 laddr, UINT32 (*func)(UINT32, void *), void *arg)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE;
+	const int ucrw = CPU_PAGE_WRITE_DATA|CPU_STAT_USER_MODE;
 	UINT32 result, value;
 	UINT32 paddr[2];
 	UINT remain;
 
 	paddr[0] = paging(laddr, ucrw);
-	remain = 0x1000 - (laddr & 0x00000fff);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
 	if (remain >= 4) {
 		value = cpu_memoryread_d(paddr[0]);
 		result = (*func)(value, arg);
@@ -297,7 +295,7 @@ cpu_linear_memory_read_w(UINT32 laddr, c
 	UINT16 value;
 
 	paddr[0] = paging(laddr, ucrw);
-	if ((laddr + 1) & 0x00000fff) {
+	if ((laddr + 1) & PAGE_MASK) {
 		return cpu_memoryread_w(paddr[0]);
 	} else {
 		paddr[1] = paging(laddr + 1, ucrw);
@@ -315,7 +313,7 @@ cpu_linear_memory_read_d(UINT32 laddr, c
 	UINT remain;
 
 	paddr[0] = paging(laddr, ucrw);
-	remain = 0x1000 - (laddr & 0x00000fff);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
 	if (remain >= 4) {
 		return cpu_memoryread_d(paddr[0]);
 	} else {
@@ -334,13 +332,106 @@ cpu_linear_memory_read_d(UINT32 laddr, c
 
 		case 1:
 			value = cpu_memoryread(paddr[0]);
-			value += (UINT32)cpu_memoryread(paddr[1]) << 8;
-			value += (UINT32)cpu_memoryread_w(paddr[1] + 1) << 16;
+			value += (UINT32)cpu_memoryread_w(paddr[1]) << 8;
+			value += (UINT32)cpu_memoryread(paddr[1] + 2) << 24;
 			break;
 
 		default:
 			ia32_panic("cpu_linear_memory_read_d(): out of range (remain = %d)\n", remain);
-			return (UINT32)-1;
+			value = (UINT32)-1;
+			break;
+		}
+		return value;
+	}
+}
+
+UINT64 MEMCALL
+cpu_linear_memory_read_q(UINT32 laddr, const int ucrw)
+{
+	UINT32 paddr[2];
+	UINT64 value;
+	UINT remain;
+
+	paddr[0] = paging(laddr, ucrw);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
+	if (remain >= 8) {
+		return cpu_memoryread_q(paddr[0]);
+	} else {
+		paddr[1] = paging(laddr + remain, ucrw);
+		switch (remain) {
+		case 7:
+			value = cpu_memoryread(paddr[0]);
+			value += (UINT64)cpu_memoryread_w(paddr[0] + 1) << 8;
+			value += (UINT64)cpu_memoryread_d(paddr[0] + 3) << 24;
+			value += (UINT64)cpu_memoryread(paddr[1]) << 56;
+			break;
+
+		case 6:
+			value = cpu_memoryread_w(paddr[0]);
+			value += (UINT64)cpu_memoryread_d(paddr[0] + 2) << 16;
+			value += (UINT64)cpu_memoryread_w(paddr[1]) << 48;
+			break;
+
+		case 5:
+			value = cpu_memoryread(paddr[0]);
+			value += (UINT64)cpu_memoryread_d(paddr[0] + 1) << 8;
+			value += (UINT64)cpu_memoryread_w(paddr[1]) << 40;
+			value += (UINT64)cpu_memoryread(paddr[1] + 2) << 56;
+			break;
+
+		case 4:
+			value = cpu_memoryread_d(paddr[0]);
+			value += (UINT64)cpu_memoryread_d(paddr[1]) << 32;
+			break;
+
+		case 3:
+			value = cpu_memoryread(paddr[0]);
+			value += (UINT64)cpu_memoryread_w(paddr[0] + 1) << 8;
+			value += (UINT64)cpu_memoryread_d(paddr[1]) << 24;
+			value += (UINT64)cpu_memoryread(paddr[1] + 4) << 56;
+			break;
+
+		case 2:
+			value = cpu_memoryread_w(paddr[0]);
+			value += (UINT64)cpu_memoryread_d(paddr[1]) << 16;
+			value += (UINT64)cpu_memoryread_w(paddr[1] + 4) << 48;
+			break;
+
+		case 1:
+			value = cpu_memoryread(paddr[0]);
+			value += (UINT64)cpu_memoryread_d(paddr[1]) << 8;
+			value += (UINT64)cpu_memoryread_w(paddr[1] + 4) << 40;
+			value += (UINT64)cpu_memoryread(paddr[1] + 6) << 56;
+			break;
+
+		default:
+			ia32_panic("cpu_linear_memory_read_q(): out of range (remain = %d)\n", remain);
+			value = (UINT64)-1;
+			break;
+		}
+	}
+	return value;
+}
+
+REG80 MEMCALL
+cpu_linear_memory_read_f(UINT32 laddr, const int ucrw)
+{
+	UINT32 paddr[2];
+	REG80 value;
+	UINT remain;
+	UINT i, j;
+
+	paddr[0] = paging(laddr, ucrw);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
+	if (remain >= 10) {
+		return cpu_memoryread_f(paddr[0]);
+	} else {
+		paddr[1] = paging(laddr + remain, ucrw);
+		for (i = 0; i < remain; ++i) {
+			value.b[i] = cpu_memoryread(paddr[0] + i);
+		}
+		for (j = 0; i < 10; ++i, ++j) {
+			value.b[i] = cpu_memoryread(paddr[1] + j);
 		}
 		return value;
 	}
@@ -349,7 +440,7 @@ cpu_linear_memory_read_d(UINT32 laddr, c
 void MEMCALL
 cpu_linear_memory_write_b(UINT32 laddr, UINT8 value, const int user_mode)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode;
+	const int ucrw = CPU_PAGE_WRITE_DATA|user_mode;
 	UINT32 paddr;
 
 	paddr = paging(laddr, ucrw);
@@ -359,11 +450,11 @@ cpu_linear_memory_write_b(UINT32 laddr, 
 void MEMCALL
 cpu_linear_memory_write_w(UINT32 laddr, UINT16 value, const int user_mode)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode;
+	const int ucrw = CPU_PAGE_WRITE_DATA|user_mode;
 	UINT32 paddr[2];
 
 	paddr[0] = paging(laddr, ucrw);
-	if ((laddr + 1) & 0x00000fff) {
+	if ((laddr + 1) & PAGE_MASK) {
 		cpu_memorywrite_w(paddr[0], value);
 	} else {
 		paddr[1] = paging(laddr + 1, ucrw);
@@ -375,12 +466,12 @@ cpu_linear_memory_write_w(UINT32 laddr, 
 void MEMCALL
 cpu_linear_memory_write_d(UINT32 laddr, UINT32 value, const int user_mode)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode;
+	const int ucrw = CPU_PAGE_WRITE_DATA|user_mode;
 	UINT32 paddr[2];
 	UINT remain;
 
 	paddr[0] = paging(laddr, ucrw);
-	remain = 0x1000 - (laddr & 0x00000fff);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
 	if (remain >= 4) {
 		cpu_memorywrite_d(paddr[0], value);
 	} else {
@@ -399,217 +490,101 @@ cpu_linear_memory_write_d(UINT32 laddr, 
 
 		case 1:
 			cpu_memorywrite(paddr[0], (UINT8)value);
-			cpu_memorywrite(paddr[1], (UINT8)(value >> 8));
-			cpu_memorywrite_w(paddr[1] + 1, (UINT16)(value >> 16));
+			cpu_memorywrite_w(paddr[1], (UINT16)(value >> 8));
+			cpu_memorywrite(paddr[1] + 2, (UINT8)(value >> 24));
 			break;
 		}
 	}
 }
 
-#else	/* !IA32_PAGING_EACHSIZE */
-
-UINT32 MEMCALL
-cpu_memory_access_la_RMW(UINT32 laddr, UINT length, UINT32 (*func)(UINT32, void *), void *arg)
+void MEMCALL
+cpu_linear_memory_write_q(UINT32 laddr, UINT64 value, const int user_mode)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|CPU_STAT_USER_MODE;
-	UINT32 result, value;
+	const int ucrw = CPU_PAGE_WRITE_DATA|user_mode;
 	UINT32 paddr[2];
 	UINT remain;
 
 	paddr[0] = paging(laddr, ucrw);
-	remain = 0x1000 - (laddr & 0x00000fff);
-	if (remain >= length) {
-		/* fast mode */
-		switch (length) {
-		case 4:
-			value = cpu_memoryread_d(paddr[0]);
-			result = (*func)(value, arg);
-			cpu_memorywrite_d(paddr[0], result);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
+	if (remain >= 8) {
+		cpu_memorywrite_q(paddr[0], value);
+	} else {
+		paddr[1] = paging(laddr + remain, ucrw);
+		switch (remain) {
+		case 7:
+			cpu_memorywrite(paddr[0], (UINT8)value);
+			cpu_memorywrite_w(paddr[0] + 1, (UINT16)(value >> 8));
+			cpu_memorywrite_d(paddr[0] + 3, (UINT32)(value >> 24));
+			cpu_memorywrite(paddr[1], (UINT8)(value >> 56));
 			break;
 
-		case 2:
-			value = cpu_memoryread_w(paddr[0]);
-			result = (*func)(value, arg);
-			cpu_memorywrite_w(paddr[0], (UINT16)result);
+		case 6:
+			cpu_memorywrite_w(paddr[0], (UINT16)value);
+			cpu_memorywrite_d(paddr[0] + 2, (UINT32)(value >> 16));
+			cpu_memorywrite_w(paddr[1], (UINT16)(value >> 48));
 			break;
 
-		case 1:
-			value = cpu_memoryread(paddr[0]);
-			result = (*func)(value, arg);
-			cpu_memorywrite(paddr[0], (UINT8)result);
+		case 5:
+			cpu_memorywrite(paddr[0], (UINT8)value);
+			cpu_memorywrite_d(paddr[0] + 1, (UINT32)(value >> 8));
+			cpu_memorywrite_w(paddr[1], (UINT16)(value >> 40));
+			cpu_memorywrite(paddr[1] + 2, (UINT8)(value >> 56));
 			break;
 
-		default:
-			ia32_panic("cpu_memory_access_la_RMW(): invalid length (length = %d)\n", length);
-			return (UINT32)-1;
-		}
-		return value;
-	}
-
-	/* slow mode */
-	paddr[1] = paging(laddr + remain, ucrw);
-	switch (remain) {
-	case 3:
-		value = cpu_memoryread(paddr[0]);
-		value += (UINT32)cpu_memoryread_w(paddr[0] + 1) << 8;
-		value += (UINT32)cpu_memoryread(paddr[1]) << 24;
-		result = (*func)(value, arg);
-		cpu_memorywrite(paddr[0], (UINT8)result);
-		cpu_memorywrite_w(paddr[0] + 1, (UINT16)(result >> 8));
-		cpu_memorywrite(paddr[1], (UINT8)(result >> 24));
-		break;
-
-	case 2:
-		value = cpu_memoryread_w(paddr[0]);
-		value += (UINT32)cpu_memoryread_w(paddr[1]) << 16;
-		result = (*func)(value, arg);
-		cpu_memorywrite_w(paddr[0], (UINT16)result);
-		cpu_memorywrite_w(paddr[1], (UINT16)(result >> 16));
-		break;
-
-	case 1:
-		value = cpu_memoryread(paddr[0]);
-		value += (UINT32)cpu_memoryread(paddr[1]) << 8;
-		if (length == 4) {
-			value += (UINT32)cpu_memoryread_w(paddr[1] + 1) << 16;
-		}
-		result = (*func)(value, arg);
-		cpu_memorywrite(paddr[0], (UINT8)result);
-		cpu_memorywrite(paddr[1], (UINT8)(result >> 8));
-		if (length == 4) {
-			cpu_memorywrite_w(paddr[1] + 1, (UINT16)(result >> 16));
-		}
-		break;
-
-	default:
-		ia32_panic("cpu_memory_access_la_RMW(): out of range (remain = %d)\n", remain);
-		return (UINT32)-1;
-	}
-	return value;
-}
-
-UINT32 MEMCALL
-cpu_linear_memory_read(UINT32 laddr, UINT length, const int ucrw)
-{
-	UINT32 value;
-	UINT32 paddr[2];
-	UINT remain;
-
-	paddr[0] = paging(laddr, ucrw);
-	remain = 0x1000 - (laddr & 0x00000fff);
-	if (remain >= length) {
-		/* fast mode */
-		switch (length) {
 		case 4:
-			value = cpu_memoryread_d(paddr[0]);
+			cpu_memorywrite_d(paddr[0], (UINT32)value);
+			cpu_memorywrite_d(paddr[1], (UINT32)(value >> 32));
+			break;
+
+		case 3:
+			cpu_memorywrite(paddr[0], (UINT8)value);
+			cpu_memorywrite_w(paddr[0] + 1, (UINT16)(value >> 8));
+			cpu_memorywrite_d(paddr[1], (UINT32)(value >> 24));
+			cpu_memorywrite(paddr[1] + 4, (UINT8)(value >> 56));
 			break;
 
 		case 2:
-			value = cpu_memoryread_w(paddr[0]);
+			cpu_memorywrite_w(paddr[0], (UINT16)value);
+			cpu_memorywrite_d(paddr[1], (UINT32)(value >> 16));
+			cpu_memorywrite_w(paddr[1] + 4, (UINT16)(value >> 48));
 			break;
 
 		case 1:
-			value = cpu_memoryread(paddr[0]);
+			cpu_memorywrite(paddr[0], (UINT8)value);
+			cpu_memorywrite_d(paddr[1], (UINT32)(value >> 8));
+			cpu_memorywrite_w(paddr[1] + 4, (UINT16)(value >> 40));
+			cpu_memorywrite(paddr[1] + 6, (UINT8)(value >> 56));
 			break;
-
-		default:
-			ia32_panic("cpu_linear_memory_read(): invalid length (length = %d)\n", length);
-			return (UINT32)-1;
 		}
-		return value;
 	}
-
-	/* slow mode */
-	paddr[1] = paging(laddr + remain, ucrw);
-	switch (remain) {
-	case 3:
-		value = cpu_memoryread(paddr[0]);
-		value += (UINT32)cpu_memoryread_w(paddr[0] + 1) << 8;
-		value += (UINT32)cpu_memoryread(paddr[1]) << 24;
-		break;
-
-	case 2:
-		value = cpu_memoryread_w(paddr[0]);
-		value += (UINT32)cpu_memoryread_w(paddr[1]) << 16;
-		break;
-
-	case 1:
-		value = cpu_memoryread(paddr[0]);
-		value += (UINT32)cpu_memoryread(paddr[1]) << 8;
-		if (length == 4) {
-			value += (UINT32)cpu_memoryread_w(paddr[1] + 1) << 16;
-		}
-		break;
-
-	default:
-		ia32_panic("cpu_linear_memory_read(): out of range (remain = %d)\n", remain);
-		return (UINT32)-1;
-	}
-	return value;
 }
 
 void MEMCALL
-cpu_linear_memory_write(UINT32 laddr, UINT32 value, UINT length, const int user_mode)
+cpu_linear_memory_write_f(UINT32 laddr, const REG80 *value, const int user_mode)
 {
-	const int ucrw = CPU_PAGE_WRITE|CPU_PAGE_DATA|user_mode;
+	const int ucrw = CPU_PAGE_WRITE_DATA|user_mode;
 	UINT32 paddr[2];
 	UINT remain;
+	UINT i, j;
 
 	paddr[0] = paging(laddr, ucrw);
-	remain = 0x1000 - (laddr & 0x00000fff);
-	if (remain >= length) {
-		/* fast mode */
-		switch (length) {
-		case 4:
-			cpu_memorywrite_d(paddr[0], value);
-			break;
-
-		case 2:
-			cpu_memorywrite_w(paddr[0], (UINT16)value);
-			break;
-
-		case 1:
-			cpu_memorywrite(paddr[0], (UINT8)value);
-			break;
-
-		default:
-			ia32_panic("cpu_linear_memory_write(): invalid length (length = %d)\n", length);
-			break;
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
+	if (remain >= 10) {
+		cpu_memorywrite_f(paddr[0], value);
+	} else {
+		paddr[1] = paging(laddr + remain, ucrw);
+		for (i = 0; i < remain; ++i) {
+			cpu_memorywrite(paddr[0] + i, value->b[i]);
 		}
-		return;
-	}
-
-	/* slow mode */
-	paddr[1] = paging(laddr + remain, ucrw);
-	switch (remain) {
-	case 3:
-		cpu_memorywrite(paddr[0], (UINT8)value);
-		cpu_memorywrite_w(paddr[0] + 1, (UINT16)(value >> 8));
-		cpu_memorywrite(paddr[1], (UINT8)(value >> 24));
-		break;
-
-	case 2:
-		cpu_memorywrite_w(paddr[0], (UINT16)value);
-		cpu_memorywrite_w(paddr[1], (UINT16)(value >> 16));
-		break;
-
-	case 1:
-		cpu_memorywrite(paddr[0], (UINT8)value);
-		cpu_memorywrite(paddr[1], (UINT8)(value >> 8));
-		if (length == 4) {
-			cpu_memorywrite_w(paddr[1] + 1, (UINT16)(value >> 16));
+		for (j = 0; i < 10; ++i, ++j) {
+			cpu_memorywrite(paddr[1] + j, value->b[i]);
 		}
-		break;
-
-	default:
-		ia32_panic("cpu_linear_memory_write(): out of range (remain = %d)\n", remain);
-		break;
 	}
 }
-#endif	/* IA32_PAGING_EACHSIZE */
+
 
 void MEMCALL
-cpu_memory_access_la_region(UINT32 laddr, UINT length, const int ucrw, BYTE *data)
+cpu_memory_access_la_region(UINT32 laddr, UINT length, const int ucrw, UINT8 *data)
 {
 	UINT32 paddr;
 	UINT remain;	/* page remain */
@@ -618,7 +593,7 @@ cpu_memory_access_la_region(UINT32 laddr
 	if (length == 0)
 		return;
 
-	remain = 0x1000 - (laddr & 0x00000fff);
+	remain = PAGE_SIZE - (laddr & PAGE_MASK);
 	for (;;) {
 		if (!CPU_STAT_PAGING) {
 			paddr = laddr;
@@ -642,35 +617,16 @@ cpu_memory_access_la_region(UINT32 laddr
 		remain -= r;
 		if (remain <= 0) {
 			/* next page */
-			remain += 0x1000;
+			remain += PAGE_SIZE;
 		}
 	}
 }
 
-void MEMCALL
-paging_check(UINT32 laddr, UINT length, const int ucrw)
+UINT32 MEMCALL
+laddr2paddr(const UINT32 laddr, const int ucrw)
 {
-	UINT32 paddr;
-	UINT remain;	/* page remain */
-	UINT r;
-
-	remain = 0x1000 - (laddr & 0x00000fff);
-	for (;;) {
-		paddr = paging(laddr, ucrw);
-
-		r = (remain > length) ? length : remain;
-
-		length -= r;
-		if (length == 0)
-			break;
 
-		laddr += r;
-		remain -= r;
-		if (remain <= 0) {
-			/* next page */
-			remain += 0x1000;
-		}
-	}
+	return paging(laddr, ucrw);
 }
 
 static UINT32 MEMCALL
@@ -688,7 +644,7 @@ paging(const UINT32 laddr, const int ucr
 
 	ep = tlb_lookup(laddr, ucrw);
 	if (ep != NULL)
-		return ep->paddr + (laddr & 0xfff);
+		return ep->paddr + (laddr & PAGE_MASK);
 #endif
 
 	pde_addr = CPU_STAT_PDE_BASE + ((laddr >> 20) & 0xffc);
@@ -720,7 +676,7 @@ paging(const UINT32 laddr, const int ucr
 	}
 
 	/* make physical address */
-	paddr = (pte & CPU_PTE_BASEADDR_MASK) + (laddr & 0x00000fff);
+	paddr = (pte & CPU_PTE_BASEADDR_MASK) + (laddr & PAGE_MASK);
 
 	bit  = ucrw & (CPU_PAGE_WRITE|CPU_PAGE_USER_MODE);
 	bit |= (pde & pte & (CPU_PTE_WRITABLE|CPU_PTE_USER_MODE));
@@ -782,7 +738,11 @@ do { \
 #define	TLB_IS_WRITABLE(ep)	((ep)->tag & CPU_PTE_WRITABLE)
 #define	TLB_IS_USERMODE(ep)	((ep)->tag & CPU_PTE_USER_MODE)
 #define	TLB_IS_DIRTY(ep)	((ep)->tag & TLB_ENTRY_TAG_DIRTY)
+#if (CPU_FEATURES & CPU_FEATURE_PGE) == CPU_FEATURE_PGE
 #define	TLB_IS_GLOBAL(ep)	((ep)->tag & TLB_ENTRY_TAG_GLOBAL)
+#else
+#define	TLB_IS_GLOBAL(ep)	0
+#endif
 
 #define	TLB_SET_TAG_FLAGS(ep, entry, bit) \
 do { \