--- np2/i386c/ia32/segments.c	2004/03/04 15:20:13	1.14
+++ np2/i386c/ia32/segments.c	2008/01/25 17:53:27	1.18
@@ -1,4 +1,4 @@
-/*	$Id: segments.c,v 1.14 2004/03/04 15:20:13 yui Exp $	*/
+/*	$Id: segments.c,v 1.18 2008/01/25 17:53:27 monaka Exp $	*/
 
 /*
  * Copyright (c) 2003 NONAKA Kimihiro
@@ -12,8 +12,6 @@
  * 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
@@ -131,7 +129,7 @@ load_segreg(int idx, UINT16 selector, in
  * load SS register
  */
 void
-load_ss(UINT16 selector, descriptor_t *sd, UINT cpl)
+load_ss(UINT16 selector, const descriptor_t *sd, UINT cpl)
 {
 
 	CPU_STAT_SS32 = sd->d;
@@ -143,7 +141,7 @@ load_ss(UINT16 selector, descriptor_t *s
  * load CS register
  */
 void
-load_cs(UINT16 selector, descriptor_t *sd, UINT cpl)
+load_cs(UINT16 selector, const descriptor_t *sd, UINT cpl)
 {
 
 	CPU_INST_OP32 = CPU_INST_AS32 =
@@ -179,10 +177,18 @@ load_ldtr(UINT16 selector, int exc)
 		EXCEPTION(exc, sel.selector);
 	}
 
+#if 0
+	/*
+	 * LEMM の挙動より LDT セグメントのリミットチェック処理を無効化
+	 *
+	 * 症状１:リミット 0 の LDT セレクタを LLDT は駄目っぽい。
+	 * 対策１:リミット 0 の LDT セレクタの代わりにヌルセレクタを LLDT。
+	 */
 	/* check limit */
 	if (sel.desc.u.seg.limit < 7) {
 		ia32_panic("load_ldtr: LDTR descriptor limit < 7 (limit = %d)", sel.desc.u.seg.limit);
 	}
+#endif
 
 	/* not present */
 	rv = selector_is_not_present(&sel);
@@ -319,9 +325,6 @@ load_descriptor(descriptor_t *descp, UIN
 		case 0: case 8: case 10: case 13: /* reserved */
 		default:
 			descp->valid = 0;
-			if (descp->p) {			// ---- for test!
-				ia32_panic("load_descriptor: bad descriptor (type = %d)", descp->type);
-			}
 			break;
 		}
 	}
@@ -377,7 +380,7 @@ parse_selector(selector_t *ssp, UINT16 s
 }
 
 int
-selector_is_not_present(selector_t *ssp)
+selector_is_not_present(const selector_t *ssp)
 {
 	UINT32 h;