--- np2/i386c/ia32/debug.c	2004/01/14 16:14:49	1.3
+++ np2/i386c/ia32/debug.c	2004/01/23 14:33:26	1.4
@@ -1,4 +1,4 @@
-/*	$Id: debug.c,v 1.3 2004/01/14 16:14:49 monaka Exp $	*/
+/*	$Id: debug.c,v 1.4 2004/01/23 14:33:26 monaka Exp $	*/
 
 /*
  * Copyright (c) 2002-2003 NONAKA Kimihiro
@@ -30,13 +30,11 @@
 #include "compiler.h"
 
 #include "cpu.h"
+#include "memory.h"
 #ifdef USE_FPU
 #include "instructions/fpu/fpu.h"
 #endif
 
-#if 0
-extern BOOL is_a20(void);	/* in ../cpuio.c */
-#endif
 
 char *cpu_reg2str(void)
 {
@@ -115,12 +113,11 @@ char *fpu_reg2str(void)
 }
 #endif
 
-#if 0
 static char *a20str(void)
 {
   static char buf[32];
 
-  sprintf(buf, "a20line=%s\n", is_a20() ? "enable" : "disable");
+  sprintf(buf, "a20line=%s\n", CPU_STAT_ADRSMASK == 0xffffffff ? "enable" : "disable");
   return buf;
 }
 
@@ -189,4 +186,167 @@ void put_cpuinfo(void)
 
   printf(buf);
 }
-#endif
+
+void
+memory_dump(int idx, DWORD madr)
+{
+	DWORD addr;
+	size_t size;
+	unsigned char buf[16];
+	size_t s, i;
+	BYTE p;
+
+	if (madr < 0x80) {
+		size = madr + 0x80;
+		addr = 0;
+	} else {
+		size = 0x100;
+		addr = madr - 0x80;
+	}
+	VERBOSE(("memory dump\n-- \n"));
+	for (s = 0; s < size; s++) {
+		if ((s % 16) == 0) {
+			VERBOSE(("%08x: ", addr + s));
+			memset(buf, '.', sizeof(buf));
+		}
+
+		p = cpu_vmemoryread(idx, addr + s);
+		VERBOSE(("%02x ", p));
+		if (p >= 0x20 && p <= 0x7e)
+			buf[s % 16] = p;
+
+		if ((s % 16) == 15) {
+			VERBOSE(("| "));
+			for (i = 0; i < sizeof(buf); i++)
+				VERBOSE(("%c", buf[i]));
+			VERBOSE(("\n"));
+		}
+	}
+}
+
+void
+gdtr_dump(DWORD base, DWORD limit)
+{
+	DWORD v[2];
+	DWORD i;
+
+	VERBOSE(("GDTR_DUMP: GDTR_BASE = 0x%08x, GDTR_LIMIT = 0x%04x",base,limit));
+
+	for (i = 0; i < limit; i += 8) {
+		v[0] = cpu_lmemoryread_d(base + i);
+		v[1] = cpu_lmemoryread_d(base + i + 4);
+		VERBOSE(("GDTR_DUMP: %08x: %08x%08x", base + i, v[0], v[1]));
+	}
+}
+
+void
+ldtr_dump(DWORD base, DWORD limit)
+{
+	DWORD v[2];
+	DWORD i;
+
+	VERBOSE(("LDTR_DUMP: LDTR_BASE = 0x%08x, LDTR_LIMIT = 0x%04x",base,limit));
+
+	for (i = 0; i < limit; i += 8) {
+		v[0] = cpu_lmemoryread_d(base + i);
+		v[1] = cpu_lmemoryread_d(base + i + 4);
+		VERBOSE(("LDTR_DUMP: %08x: %08x%08x", base + i, v[0], v[1]));
+	}
+}
+
+void
+idtr_dump(DWORD base, DWORD limit)
+{
+	DWORD v[2];
+	DWORD i;
+
+	VERBOSE(("IDTR_DUMP: IDTR_BASE = 0x%08x, IDTR_LIMIT = 0x%04x",base,limit));
+
+	for (i = 0; i < limit; i += 8) {
+		v[0] = cpu_lmemoryread_d(base + i);
+		v[1] = cpu_lmemoryread_d(base + i + 4);
+		VERBOSE(("IDTR_DUMP: %08x: %08x%08x", base + i, v[0], v[1]));
+	}
+}
+
+void
+tr_dump(WORD selector, DWORD base, DWORD limit)
+{
+	DWORD v;
+	DWORD i;
+
+	VERBOSE(("TR_DUMP: selector = %04x", selector));
+
+	for (i = 0; i < limit; i += 4) {
+		v = cpu_lmemoryread_d(base + i);
+		VERBOSE(("TR_DUMP: %08x: %08x", base + i, v));
+	}
+}
+
+DWORD
+pde_dump(DWORD base, int idx)
+{
+	DWORD paddr;
+	DWORD v;
+	int i;
+
+	if (idx < 0 && idx > -8192) {
+		idx = -idx;
+		VERBOSE(("PDE_DUMP: address = 0x%08x, num = %d", base, idx));
+		for (i = 0; i < idx; i++) {
+			paddr = (base & CPU_CR3_PD_MASK) | (idx << 2);
+			v = cpu_memoryread_d(paddr);
+			VERBOSE(("PDE_DUMP: 0x%08x: %08x", paddr, v));
+		}
+		paddr = 0;
+	} else if (idx < 8192) {
+		VERBOSE(("PDE_DUMP: address = 0x%08x", base));
+		paddr = (base & CPU_CR3_PD_MASK) | (idx << 2);
+		v = cpu_memoryread_d(paddr);
+		VERBOSE(("PDE_DUMP: 0x%08x: %08x", paddr, v));
+	} else {
+		paddr = 0;
+	}
+
+	return paddr;
+}
+
+DWORD
+convert_laddr_to_paddr(DWORD laddr)
+{
+	DWORD paddr;	/* physical address */
+	DWORD pde_addr;	/* page directory entry address */
+	DWORD pde;	/* page directory entry */
+	DWORD pte_addr;	/* page table entry address */
+	DWORD pte;	/* page table entry */
+
+	pde_addr = (CPU_CR3 & CPU_CR3_PD_MASK) | ((laddr >> 20) & 0xffc);
+	pde = cpu_memoryread_d(pde_addr);
+
+	if ((CPU_CR4 & CPU_CR4_PSE) && (pde & CPU_PDE_PAGE_SIZE)) {
+		/* 4MB page size */
+		paddr = (pde & CPU_PDE_4M_BASEADDR_MASK) | (laddr & 0x003fffff);
+	} else {
+		/* 4KB page size */
+		pte_addr = (pde & CPU_PDE_BASEADDR_MASK) | ((laddr >> 10) & 0xffc);
+		pte = cpu_memoryread_d(pte_addr);
+		paddr = (pte & CPU_PTE_BASEADDR_MASK) | (laddr & 0x00000fff);
+	}
+	return paddr;
+}
+
+DWORD
+convert_vaddr_to_paddr(unsigned int idx, DWORD offset)
+{
+	descriptor_t *sdp;
+	DWORD laddr;
+
+	if (idx < CPU_SEGREG_NUM) {
+		sdp = &CPU_STAT_SREG(idx);
+		if (sdp->valid) {
+			laddr = CPU_STAT_SREGBASE(idx) + offset;
+			return convert_laddr_to_paddr(laddr);
+		}
+	}
+	return 0;
+}