--- np2/i386c/ia32/task.c	2011/12/29 13:32:12	1.30
+++ np2/i386c/ia32/task.c	2012/01/08 11:36:06	1.33
@@ -69,9 +69,6 @@ load_tr(UINT16 selector)
 {
 	selector_t task_sel;
 	int rv;
-#if defined(IA32_SUPPORT_DEBUG_REGISTER)
-	int i;
-#endif
 	UINT16 iobase;
 
 	rv = parse_selector(&task_sel, selector);
@@ -123,17 +120,6 @@ load_tr(UINT16 selector)
 			CPU_STAT_IOADDR = CPU_TR_DESC.u.seg.segbase + iobase;
 		}
 	}
-
-#if defined(IA32_SUPPORT_DEBUG_REGISTER)
-	/* clear local break point flags */
-	CPU_DR7 &= ~(CPU_DR7_L(0)|CPU_DR7_L(1)|CPU_DR7_L(2)|CPU_DR7_L(3)|CPU_DR7_LE);
-	CPU_STAT_BP = 0;
-	for (i = 0; i < CPU_DEBUG_REG_INDEX_NUM; i++) {
-		if (CPU_DR7 & CPU_DR7_G(i)) {
-			CPU_STAT_BP |= (1 << i);
-		}
-	}
-#endif
 }
 
 void CPUCALL
@@ -142,7 +128,7 @@ get_stack_pointer_from_tss(UINT pl, UINT
 	UINT32 tss_stack_addr;
 
 	VERBOSE(("get_stack_pointer_from_tss: pl = %d", pl));
-	VERBOSE(("CPU_TR type = %d, base = 0x%08x, limit = 0x%08x", CPU_TR_DESC.type, CPU_TR_BASE, CPU_TR_LIMIT));
+	VERBOSE(("get_stack_pointer_from_tss: CPU_TR type = %d, base = 0x%08x, limit = 0x%08x", CPU_TR_DESC.type, CPU_TR_BASE, CPU_TR_LIMIT));
 
 	__ASSERT(pl < 3);
 
@@ -165,7 +151,7 @@ get_stack_pointer_from_tss(UINT pl, UINT
 	} else {
 		ia32_panic("get_stack_pointer_from_tss: task register is invalid (%d)\n", CPU_TR_DESC.type);
 	}
-	VERBOSE(("new stack pointer = %04x:%08x", *new_ss, *new_esp));
+	VERBOSE(("get_stack_pointer_from_tss: new stack pointer = %04x:%08x", *new_ss, *new_esp));
 }
 
 UINT16
@@ -469,27 +455,42 @@ task_switch(selector_t *task_sel, task_s
 	}
 	VERBOSE(("task_switch: ioaddr = %08x, limit = %08x", CPU_STAT_IOADDR, CPU_STAT_IOLIMIT));
 
-#if defined(IA32_SUPPORT_DEBUG_REGISTER)
-	/* check resume flag */
-	if (CPU_EFLAG & RF_FLAG) {
-		CPU_STAT_BP_EVENT |= CPU_STAT_BP_EVENT_RF;
-	}
-
-	/* clear local break point flags */
-	CPU_DR7 &= ~(CPU_DR7_L(0)|CPU_DR7_L(1)|CPU_DR7_L(2)|CPU_DR7_L(3)|CPU_DR7_LE);
-	CPU_STAT_BP = 0;
-	for (i = 0; i < CPU_DEBUG_REG_INDEX_NUM; i++) {
-		if (CPU_DR7 & CPU_DR7_G(i)) {
-			CPU_STAT_BP |= (1 << i);
-		}
-	}
-#endif
-
 	/* set new EFLAGS */
 	set_eflags(new_flags, I_FLAG|IOPL_FLAG|RF_FLAG|VM_FLAG|VIF_FLAG|VIP_FLAG);
 
 	/* set new segment register */
 	if (!CPU_STAT_VM86) {
+		/* load CS */
+		rv = parse_selector(&cs_sel, sreg[CPU_CS_INDEX]);
+		if (rv < 0) {
+			VERBOSE(("task_switch: load CS failure (sel = 0x%04x, rv = %d)", sreg[CPU_CS_INDEX], rv));
+			EXCEPTION(TS_EXCEPTION, cs_sel.idx);
+		}
+
+		/* CS must be code segment */
+		if (SEG_IS_SYSTEM(&cs_sel.desc) || SEG_IS_DATA(&cs_sel.desc)) {
+			EXCEPTION(TS_EXCEPTION, cs_sel.idx);
+		}
+
+		/* check privilege level */
+		if (!SEG_IS_CONFORMING_CODE(&cs_sel.desc)) {
+			/* non-confirming code segment */
+			if (cs_sel.desc.dpl != cs_sel.rpl) {
+				EXCEPTION(TS_EXCEPTION, cs_sel.idx);
+			}
+		} else {
+			/* conforming code segment */
+			if (cs_sel.desc.dpl > cs_sel.rpl) {
+				EXCEPTION(TS_EXCEPTION, cs_sel.idx);
+			}
+		}
+
+		/* code segment is not present */
+		rv = selector_is_not_present(&cs_sel);
+		if (rv < 0) {
+			EXCEPTION(NP_EXCEPTION, cs_sel.idx);
+		}
+
 		/* load SS */
 		rv = parse_selector(&ss_sel, sreg[CPU_SS_INDEX]);
 		if (rv < 0) {
@@ -525,37 +526,6 @@ task_switch(selector_t *task_sel, task_s
 		LOAD_SEGREG1(CPU_FS_INDEX, sreg[CPU_FS_INDEX], TS_EXCEPTION);
 		LOAD_SEGREG1(CPU_GS_INDEX, sreg[CPU_GS_INDEX], TS_EXCEPTION);
 
-		/* load CS */
-		rv = parse_selector(&cs_sel, sreg[CPU_CS_INDEX]);
-		if (rv < 0) {
-			VERBOSE(("task_switch: load CS failure (sel = 0x%04x, rv = %d)", sreg[CPU_CS_INDEX], rv));
-			EXCEPTION(TS_EXCEPTION, cs_sel.idx);
-		}
-
-		/* CS must be code segment */
-		if (SEG_IS_SYSTEM(&cs_sel.desc) || SEG_IS_DATA(&cs_sel.desc)) {
-			EXCEPTION(TS_EXCEPTION, cs_sel.idx);
-		}
-
-		/* check privilege level */
-		if (!SEG_IS_CONFORMING_CODE(&cs_sel.desc)) {
-			/* non-confirming code segment */
-			if (cs_sel.desc.dpl != cs_sel.rpl) {
-				EXCEPTION(TS_EXCEPTION, cs_sel.idx);
-			}
-		} else {
-			/* conforming code segment */
-			if (cs_sel.desc.dpl > cs_sel.rpl) {
-				EXCEPTION(TS_EXCEPTION, cs_sel.idx);
-			}
-		}
-
-		/* code segment is not present */
-		rv = selector_is_not_present(&cs_sel);
-		if (rv < 0) {
-			EXCEPTION(NP_EXCEPTION, cs_sel.idx);
-		}
-
 		/* Now loading CS register */
 		load_cs(cs_sel.selector, &cs_sel.desc, cs_sel.rpl);
 	}