diff -aruN shujit-0.3.13/ChangeLog shujit/ChangeLog
--- shujit-0.3.13/ChangeLog	Sat Oct 16 18:51:07 1999
+++ shujit/ChangeLog	Tue Dec 28 19:56:26 1999
@@ -1,5 +1,134 @@
 $Id$
 
+[20000101]
+
+0.4.0 リリース。
+
+[19991228]
+
+JIT のシグナルハンドラから目的の sigcontext まで到達する方法を、
+あらかじめ JIT 初期化時に求めておくようにした。
+examineSigcontextNestCount() を JIT のシグナルハンドラに設定し、
+int $0x3 で割り込みを発生させ、その関数内で到達法を求める。
+native threads と green threads で探し方が異なる。
+[Thanks to OpenJIT team <openjit@is.titech.ac.jp>]
+(signal.c, compiler.h)
+
+スタック上で目的の sigcontext を探す際、これまでは
+セグメントレジスタ ds,es,fs,gs の値を手がかりにしていたが、
+%eip レジスタ (プログラムカウンタ) を手がかりに使うようにした。
+(signal.c)
+
+sigcontext を探す際の手がかり変更に伴って不要になった
+変数 reg_[gfed]s およびその初期化処理を削除した。
+(compiler.h, compiler.c)
+
+JDK 1.1 で #include ARCH/sysmacros_md.h する際に、
+JDK_HOME/include(-old)/green_threads ディレクトリが存在するか否かによって
+マクロ NATIVE を #define するかしないかを決めねばならない。
+そのために、configure で green_threads ディレクトリの有無を判定するようにした。
+(configure.in, config.h.in)
+
+Linux 2.2 が持っている <asm/ucontext.h> を Linux 2.0 は持っていないので、
+このヘッダの存在を configure で調べるようにした。
+(configure.in, config.h.in)
+
+examineSigcontextNestCount() を実行するための割り込みを、
+0x3 から 0x10 にした。0x3 (SIGTRAP) を使うと、
+それ以降 gdb が処理を続けられなくなってしまうため。
+int $0x3 とそれ以外では、sigcontext.sc_eip の値
+(int $0x3 では次の命令を指す、他は int 命令を指す) や
+命令のサイズ (int $0x3 は 1バイト、他は 2バイト) が異なるので注意。
+(compiler.c, signal.c)
+
+新しい (2.9.5.0.22) binutils になって、
+objdump による `call 即値' のディスアセンブル結果が変わった。
+次の行に `XXX: R_386_PC32 *ABS*' を表示するようになった。
+それに応じて、gentable.rb にて関数名 *ABS* をスキップするようにした。
+(gentable.rb)
+
+新しい binutils は jmp 0x707070 を jmp 0x70706c にアセンブルするので、
+対策として、ジャンプ先アドレスの格納先の pre-assembled code 中での表現法、
+つまり code.h のマクロ ADDR_* の値を変更し、gentable.rb もそれに対応させた。
+(code.h, gentable.rb)
+
+code.h のマクロ ADDR_* は例えば 0x70707010 としておいて、
+ディスアセンブル結果から /70 70 70/ を探すようにした。
+しかし binutils のバージョンによっては 3つめの 70 が次の行に表示されて
+/70 70 70/ がマッチしなくなった。そのため、/70 70/ で探すようにした。
+(gentable.rb, code.h)
+
+[19991227]
+
+sigcontext の探し方を変更。単にスタックをなめていたところ、
+ベースポインタをたぐって探すようにした。
+ebp + 3 が sigcontext_t * 型かどうかで判定する。
+[Thanks to OpenJIT team <openjit@is.titech.ac.jp>]
+glibc 2.1.2 の LinuxThreads は sigcontext を 2つスタックに置いてしまい、
+ひとつめに見付かった sigcontext を変更しても、
+シグナルハンドラから戻った際に反映されない。
+そのため、最後に見付けた ebp を採用する。
+(compiler.c)
+
+signalHandler() から例外処理への復帰のために、これまでは目的のアドレスに
+単にジャンプしていたところ、
+Linux では %ebp を設定して return するように、
+FreeBSD では sigreturn(sigcontext_t *) を使うようにした。
+[Thanks to OpenJIT team <openjit@is.titech.ac.jp>]
+FreeBSD で行っていたシグナルの unmask (sigprocmask(SIG_UNBLOCK, ...)) は
+不要になった。
+(compiler.c)
+
+シグナルハンドラの再設定のための変数
+struct sigaction sigActForHandler を排した。
+(compiler.c)
+
+[19991223]
+
+copyright 表示の年に 2000 を加えた。
+ただし、MetaVM のための Java のソースコードは 1999 のままにした。
+
+[19991222]
+
+JIT の初期化関数 java_lang_Compiler_start が
+java.lang.Compiler クラスが再ロードによって複数回呼ばれてしまう問題への
+対処法を変更。フラグで検出していたところ、Compiler クラスに sticky 属性を
+付与することにした (CCSet(..., Sticky))。(see [990514])
+(compiler.c)
+
+[19991209]
+
+shuJIT では、フィールドアクセスだけでなく、メソッド呼び出しについても
+きちんと VerifyFieldAccess でアクセス権限チェックを行っている。
+(see [19991003]) このチェックによって、inner クラスから/へのアクセスでも
+IllegalAccessError が発生してしまっていた。
+inner クラスからみのアクセスを許すように穴をあけた。
+NetBeans 2.1.2 で問題になっていた。
+(compile.c)
+
+[19991204]
+
+JDK 1.2 の場合、シグナルハンドラから例外処理コードへのジャンプは
+単に return TRUE すればよいはずが (see [19990725])
+JDK 1.2.2rc2 for Linux にて、return 後に
+SIGSEGV が発生してしまうので、JDK 1.2 でも JDK 1.1 と同じ方法で
+ジャンプするようにした。
+(compiler.c)
+
+[19991106]
+
+strictfp の scaling を fscale 命令で行う場合、
+scale を double 型(64bit) ではなく、int 型(32bit) で用意しておく方法を用意。
+マクロ STRICT_FSCALE_USE_INT で制御。
+FPU レジスタ - メモリ間のトラフィック削減を狙う
+…が、遅くなった (on PentiumII)。ので却下。
+(compiler.h, code.c)
+
+int 型(32bit) をやめて、float 型(32bit) にした。
+マクロ STRICT_FSCALE_USE_FLOAT で制御。
+double 型(64bit) の場合と性能がほぼ変わらない。
+(compiler.h, code.c)
+
 [19991016]
 
 64bit 整数(long)型の 0除算で、__divdi3() 中で発生した SIGFPE を
diff -aruN shujit-0.3.13/GNUmakefile shujit/GNUmakefile
--- shujit-0.3.13/GNUmakefile	Sat Oct 16 19:16:38 1999
+++ shujit/GNUmakefile	Tue Dec 28 19:20:02 1999
@@ -10,15 +10,15 @@
 
 # environment
 
-JDK_VER = 11
-J_INCDIR = /usr/local/java/include
+JDK_VER = 12
+J_INCDIR = /usr/local/java/include-old
 
 GCC27 = 
 
 # command
 
 
-CC = /usr/bin/egcs
+CC = /usr/bin/gcc
 LD_DYNAMIC = ${CC} -shared#	for GCC and GNU binutils
 #LD_DYNAMIC = ld -Bdynamic#	for SunOS 4
 ASFLAGS = 
@@ -65,7 +65,7 @@
 TOOLSOBJ = codedbinfo.o
 # source code
 HDR = compiler.h code.h
-OBJ = code.o compiler.o invoker.o computil.o opcodes.o compile.o\
+OBJ = code.o compiler.o signal.o invoker.o computil.o opcodes.o compile.o\
 	runtime.o x86tsc.o
 ifneq (${JDK_VER}, 11)
 	OBJ += linker.o
diff -aruN shujit-0.3.13/GNUmakefile.in shujit/GNUmakefile.in
--- shujit-0.3.13/GNUmakefile.in	Sat Oct 16 15:46:54 1999
+++ shujit/GNUmakefile.in	Mon Dec 27 18:58:18 1999
@@ -65,7 +65,7 @@
 TOOLSOBJ = codedbinfo.o
 # source code
 HDR = compiler.h code.h
-OBJ = code.o compiler.o invoker.o computil.o opcodes.o compile.o\
+OBJ = code.o compiler.o signal.o invoker.o computil.o opcodes.o compile.o\
 	runtime.o x86tsc.o
 ifneq (${JDK_VER}, 11)
 	OBJ += linker.o
diff -aruN shujit-0.3.13/README shujit/README
--- shujit-0.3.13/README	Sat Oct 16 19:25:33 1999
+++ shujit/README	Tue Dec 28 19:03:20 1999
@@ -13,24 +13,24 @@
 Working on the following platforms is confirmed.
 
 - Linux
-  - JDK 1.2 pre-release 2, egcs 1.1.2, glibc2.1.1 and Linux 2.2.12
-  - JDK 1.2 pre-release 2, egcs 1.0.3, glibc2.0.7 and Linux 2.2.12
-  - JDK 1.1.7v3, egcs 1.1.2, glibc2.1.1 and Linux 2.2.12
+  - Blackdown JDK 1.2.2 RC3, gcc 2.95.2, glibc2.1.2 and Linux 2.2.14pre16
+  - JDK 1.2 pre-release 2, egcs 1.0.3, glibc2.0.7 and Linux 2.2.13pre7
+  - JDK 1.1.8v1, gcc 2.95.2, glibc2.1.2 and Linux 2.2.14pre16
   - JDK 1.1.7v1a, egcs 1.1.2, libc5.4.38 and Linux 2.0.35
 
 - FreeBSD
-  - JDK 1.1.8 (ELF, V99-9-22), gcc 2.95.1, FreeBSD 3.2R
+  - JDK 1.1.8 (ELF, V1999-11-9), gcc 2.95.2, FreeBSD 3.3R
 
 * Installation
 
 With JDK 1.2, you must place the libshujit.so on
-jdk1.2/jre/lib/i386/ or make a symbolic link into the
+jdk1.2.2/jre/lib/i386/ or make a symbolic link into the
 directory.
 
 With JDK 1.1.X, copy the libshujit.so to the
 path in LD_LIBRARY_PATH variable or the path on which
 libjava.so exists
-(ex. /usr/local/jdk1.1.7/lib/i686/green_threads/).
+(ex. /usr/local/jdk1.1.8/lib/i686/green_threads/).
 
 * Run Java applications with JIT compiler.
 
@@ -47,7 +47,7 @@
 
 You need some tools to compile this JIT.
 
-- JDK 1.1.X or 1.2
+- JDK 1.1.X or 1.2.X
 - gcc 2.95.X or EGCS (not experimental version such as 2.92.5-19981015)
   You can examine version of your `gcc' command with -v option.
   % gcc -v
@@ -56,14 +56,14 @@
   Most Linux distributions and ELF FreeBSD systems have it.
 - Ruby
   A script which generate some tables is written in Ruby.
-    http://www.netlab.co.jp/ruby/
+    http://www.ruby-lang.org/
 - GNU make
 
   1. Run configure script.
      % ./configure
-  2. Type `make'. You'll get libshujit.so
+  2. Type `make'. You will get libshujit.so
      % make
-     You must use GNU make. On FreeBSD, type
+     Instead of above, on FreeBSD type to use GNU make.
      % gmake
 
 * Bugs and Problems
diff -aruN shujit-0.3.13/code.c shujit/code.c
--- shujit-0.3.13/code.c	Sat Oct 16 18:24:33 1999
+++ shujit/code.c	Tue Dec 28 18:15:34 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -38,10 +38,17 @@
  */
 /* for strictfp */
 #ifdef STRICT_USE_FSCALE
-double double_scale_pos = 15360.0;	/*   16383 - 1023 */
-double double_scale_neg = -15360.0;	/* -(16383 - 1023) */
-double single_scale_pos = 16256.0;	/*   16383 - 127 */
-double single_scale_neg = -16256.0;	/* -(16383 - 127) */
+#  ifdef STRICT_FSCALE_USE_FLOAT
+float double_scale_pos = 15360.0f;	/*   16383 - 1023 */
+float double_scale_neg = -15360.0f;	/* -(16383 - 1023) */
+float single_scale_pos = 16256.0f;	/*   16383 - 127 */
+float single_scale_neg = -16256.0f;	/* -(16383 - 127) */
+#  else
+double double_scale_pos = 15360.0;
+double double_scale_neg = -15360.0;
+double single_scale_pos = 16256.0;
+double single_scale_neg = -16256.0;
+#  endif	/* STRICT_FSCALE_USE_FLOAT */
 #else
 unsigned const char double_scale_pos[10] =
 	{ 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7b };  /* 2^  (16383 - 1023) */
@@ -523,8 +530,13 @@
 #ifdef STRICT_PRELOAD
     /* push scales into FPU register */
 #  ifdef STRICT_USE_FSCALE
+#    ifdef STRICT_FSCALE_USE_FLOAT
+    asm("flds  %0\n\t" : : "m" (single_scale_neg));
+    asm("flds  %0\n\t" : : "m" (double_scale_neg));
+#    else
     asm("fldl  %0\n\t" : : "m" (single_scale_neg));
     asm("fldl  %0\n\t" : : "m" (double_scale_neg));
+#    endif	/* STRICT_FSCALE_USE_FLOAT */
 #  else
     asm("fldt  %0\n\t" : : "m" (*single_scale_neg));
     asm("fldt  %0\n\t" : : "m" (*single_scale_pos));
@@ -2320,8 +2332,13 @@
 #  ifdef STRICT_PRELOAD
 #    define ARITH_FLOAT_SCALE_PREPARE	asm("fld   %st(1)")
 #  else
-#    define ARITH_FLOAT_SCALE_PREPARE \
+#    ifdef STRICT_FSCALE_USE_FLOAT
+#      define ARITH_FLOAT_SCALE_PREPARE \
+    asm("flds  %0\n\t" : : "m" (single_scale_neg))
+#    else
+#      define ARITH_FLOAT_SCALE_PREPARE \
     asm("fldl  %0\n\t" : : "m" (single_scale_neg))
+#    endif	/* STRICT_FSCALE_USE_FLOAT */
 #  endif	/* STRICT_PRELOAD */
 #    define ARITH_FLOAT_SCALE_DOWN	asm("fscale")
 #    define ARITH_FLOAT_SCALE_UP	asm("fxch\n\t"\
@@ -2435,8 +2452,13 @@
 #  ifdef STRICT_PRELOAD
 #    define ARITH_DOUBLE_SCALE_PREPARE	asm("fld   %st(0)")
 #  else
-#    define ARITH_DOUBLE_SCALE_PREPARE \
+#    ifdef STRICT_FSCALE_USE_FLOAT
+#      define ARITH_DOUBLE_SCALE_PREPARE \
+    asm("flds  %0\n\t" : : "m" (double_scale_neg))
+#    else
+#      define ARITH_DOUBLE_SCALE_PREPARE \
     asm("fldl  %0\n\t" : : "m" (double_scale_neg))
+#    endif /* STRICT_FSCALE_USE_FLOAT */
 #  endif	/* STRICT_PRELOAD */
 #    define ARITH_DOUBLE_SCALE_DOWN	asm("fscale")
 #    define ARITH_DOUBLE_SCALE_UP	asm("fxch\n\t"\
diff -aruN shujit-0.3.13/code.h shujit/code.h
--- shujit-0.3.13/code.h	Sat Oct 16 18:22:55 1999
+++ shujit/code.h	Tue Dec 28 19:52:03 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -80,11 +80,11 @@
 #define CONST	0x606060
 /* for exception handler */
 #define BYTEPCOFF	0x626262
-#define ADDR_EXC	0x707070
+#define ADDR_EXC	0x707010
 /* for jump instructions */
-#define ADDR_JP		0x727272
+#define ADDR_JP		0x727210
 /* for *return instructions */
-#define ADDR_FIN	0x747474
+#define ADDR_FIN	0x747410
 
 
 /*
diff -aruN shujit-0.3.13/codedb.c shujit/codedb.c
--- shujit-0.3.13/codedb.c	Sun Jul 25 13:52:03 1999
+++ shujit/codedb.c	Thu Dec 23 12:57:23 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/codedbinfo.c shujit/codedbinfo.c
--- shujit-0.3.13/codedbinfo.c	Sun Jul 25 13:52:03 1999
+++ shujit/codedbinfo.c	Thu Dec 23 12:57:52 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT, Just In Time compiler
   for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/compile.c shujit/compile.c
--- shujit-0.3.13/compile.c	Sat Oct 16 16:52:00 1999
+++ shujit/compile.c	Thu Dec 23 12:58:06 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -755,6 +755,10 @@
       fb = constant_pool[index].fb;
 
       if (!(src_mb = cc->mb)) {
+#ifdef COMPILE_DEBUG
+	printf("Illegal field access: methodblock is null.\n");
+	fflush(stdout);
+#endif
 	code_opcode = opc_throw_illegalaccess;
 	goto check_access_done;
       }
@@ -767,7 +771,7 @@
       if (!VerifyFieldAccess(
 		fieldclass(&src_mb->fb), fb_class, fb_access, FALSE)) {
 #ifdef COMPILE_DEBUG
-	printf("IllegalAccessError: A private or protected field accessed.\n");
+	printf("Illegal field access: a private or protected field accessed.\n");
 	printf("\tfrom: %s#%s\n",
 		cbName(fieldclass(&src_mb->fb)), src_mb->fb.name);
 	printf("\tto  : %s#%s\n", cbName(fb_class), fb->name);
@@ -793,13 +797,14 @@
   check_access_done:
   }
 
-  /* throwing IllegalAccessError if invoke* final field */
+  /* throwing IllegalAccessError if invoke* final method */
   if ((code_opcode == opc_invokevirtual) ||
       (code_opcode == opc_invokespecial) ||
       (code_opcode == opc_invokestatic)) {
     int index;
-    struct fieldblock *method_fb;
     struct methodblock *src_mb;
+    struct fieldblock *method_fb;
+    ClassClass *src_clazz, *method_clazz;
 
     index = GET_UINT16(bytepc + 1);
     if (!CONSTANT_POOL_TYPE_TABLE_IS_RESOLVED(type_table, index)) {
@@ -813,15 +818,69 @@
     }
 
     if (!(src_mb = cc->mb)) {
+#ifdef COMPILE_DEBUG
+      printf("Illegal method invocation: methodblock is null.\n");
+      fflush(stdout);
+#endif
       code_opcode = opc_throw_illegalaccess;
       goto check_invoke_done;
     }
     method_fb = &constant_pool[index].mb->fb;
+
+    src_clazz = fieldclass(&src_mb->fb);
+    method_clazz = fieldclass(method_fb);
+
     /* check private and protected from other packages */
     if (!src_mb ||
 	(!VerifyFieldAccess(
-		fieldclass(&src_mb->fb), fieldclass(method_fb),
+		src_clazz, method_clazz,
 		method_fb->access, FALSE))) {
+      char *src_clazz_name, *method_clazz_name;
+      char *src_p, *method_p;
+      int len = 0;
+
+      src_clazz_name = cbName(src_clazz);
+      method_clazz_name = cbName(method_clazz);
+
+#ifdef COMPILE_DEBUG
+      printf("Illegal method invocation:\n");  fflush(stdout);
+      printf("\tfrom: %s#%s\n",
+		src_clazz_name, src_mb->fb.name);
+      printf("\tto  : %s#%s\n",
+		method_clazz_name, method_fb->name);
+#endif
+
+      /* but, allow access to/from inner class */
+      src_p = strchr(src_clazz_name, '$');
+      method_p = strchr(method_clazz_name, '$');
+      if (src_p) {
+	if (!method_p)  len = src_p - src_clazz_name;
+      }
+      else {
+	if (method_p)  len = method_p - method_clazz_name;
+      }
+      if (len &&
+#if JDK_VER >= 12
+	(cbProtectionDomain(src_clazz) == cbProtectionDomain(method_clazz)) &&
+	(cbLoader(src_clazz) == cbLoader(method_clazz))
+#else
+	TRUE
+#endif	/* JDK_VER >= 12 */
+	) {
+	if (!strncmp(src_clazz_name, method_clazz_name, len)) {
+#ifdef COMPILE_DEBUG
+	  printf("  VerifyFieldAccess returned FALSE, "
+		"but the access is to/from inner class.\n");
+	  fflush(stdout);
+#endif
+	  goto check_invoke_done;
+	}
+      }
+
+#ifdef COMPILE_DEBUG
+      printf("  A private or protected method invoked.\n");
+      fflush(stdout);
+#endif
       code_opcode = opc_throw_illegalaccess;
       goto check_invoke_done;
     }
diff -aruN shujit-0.3.13/compiler.c shujit/compiler.c
--- shujit-0.3.13/compiler.c	Sat Oct 16 18:52:34 1999
+++ shujit/compiler.c	Tue Dec 28 18:58:04 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -27,14 +27,14 @@
 
 #include "compiler.h"
 
-#if JDK_VER >= 12
-#  include "jit.h"	/* for JITInterface, JITInterface6 */
-#endif
-
 #if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
 #  include <signal.h>
 #endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
 
+#if JDK_VER >= 12
+#  include "jit.h"	/* for JITInterface, JITInterface6 */
+#endif
+
 #ifdef CODE_DB
 #  include <fcntl.h>	/* for O_... */
 #  include <dlfcn.h>	/* for dl*() */
@@ -56,13 +56,6 @@
 /* for strictfp */
 bool_t is_fpupc_double = FALSE;
 
-#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
-unsigned short reg_gs;
-unsigned short reg_fs;
-unsigned short reg_es;
-unsigned short reg_ds;
-#endif	/* (EXC_BY_SIGNAL || GET_SIGCONTEXT) && SEARCH_SIGCONTEXT */
-
 #ifdef CODE_DB
 #  ifdef GDBM
 #    include <gdbm.h>
@@ -113,22 +106,11 @@
 #  endif
 #endif	/* CODE_DB */
 
-#ifdef EXC_BY_SIGNAL
-static struct sigaction sigActForHandler;
-#endif
-
 
 /*
  * Local Functions
  */
 static void initializeClass(ClassClass *);
-#ifdef __FreeBSD__
-static bool_t signalHandler(int sig, int code, struct sigcontext *uc);
-#else
-static bool_t signalHandler(int sig, void *info, void *uc);
-#endif
-#define fillFPUEnv(FPUENV)	asm("fstenv %0" : "=m" (FPUENV))
-static void showFPUEnv(FILE *, char *indent, char fpuenv[28]);
 static void freeClass(ClassClass *);
 static unsigned char *compiledCodePC(JavaFrame *, struct methodblock *);
 static bool_t pcInCompiledCode(unsigned char *pc, struct methodblock *);
@@ -157,8 +139,6 @@
   JITInterface *jitinterface
 #endif
 ) {
-  static int already_called = 0;
-
   ExecEnv *ee = EE();
   MONITOR_T key;
   int version;
@@ -169,15 +149,15 @@
   fflush(stdout);
 #endif
 
-  key = obj_monitor((JHandle *)classJavaLangClass);
-  monitorEnter2(ee, key);
-
-  if (already_called) {
-    monitorExit2(ee, key);
-    return;
+  /* prevent unloading of java.lang.Compiler class */
+  {
+    ClassClass *compiler_cb = FindClass(ee, "java/lang/Compiler", TRUE);
+    if (!compiler_cb) {
+      printf("FATAL: cannot find the java.lang.Compiler class.\n");
+      JVM_Exit(1);
+    }
+    CCSet(compiler_cb, Sticky);
   }
-  already_called = 1;
-  monitorExit2(ee, key);
 
 
   /* version check */
@@ -322,45 +302,6 @@
   }
 
 
-#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT))&& defined(SEARCH_SIGCONTEXT)
-  asm("movw %%gs,%0" : "=m" (reg_gs));
-  asm("movw %%fs,%0" : "=m" (reg_fs));
-  asm("movw %%es,%0" : "=m" (reg_es));
-  asm("movw %%ds,%0" : "=m" (reg_ds));
-#ifdef RUNTIME_DEBUG
-  printf("segment registers (gs,fs,es,ds): %04x, %04x, %04x, %04x\n",
-	reg_gs, reg_fs, reg_es, reg_ds);
-  fflush(stdout);
-#endif
-#endif	/* (EXC_BY_SIGNAL || GET_SIGCONTEXT) && SEARCH_SIGCONTEXT */
-
-#ifdef EXC_BY_SIGNAL
-  /* prepare struct sigaction for signalHandler() */
-#ifdef SA_SIGINFO
-  sigActForHandler.sa_handler = NULL;
-  sigActForHandler.sa_sigaction =
-	(void (*)(int,siginfo_t *,void *))signalHandler;
-#else
-  sigActForHandler.sa_handler = (void (*)(int))signalHandler;
-#endif
-  sigemptyset(&sigActForHandler.sa_mask);
-  sigaddset(&sigActForHandler.sa_mask, SIGPIPE);
-  sigActForHandler.sa_flags = 0;
-#ifdef SA_SIGINFO
-  sigActForHandler.sa_flags |= SA_SIGINFO;
-#endif
-#ifdef SA_RESTART
-  sigActForHandler.sa_flags |= SA_RESTART;
-#endif
-#ifdef SA_ONSTACK
-  sigActForHandler.sa_flags &= ~SA_ONSTACK;	/* not needed. */
-#endif
-#ifdef SA_RESETHAND
-  sigActForHandler.sa_flags |= SA_RESETHAND;
-#endif
-#endif
-
-
   /* resolve function symbols in the func_table */
   initFunctionSymbols();
 
@@ -431,6 +372,33 @@
   UseLosslessQuickOpcodes = TRUE;
 
 
+  /* initialize for signal handler */
+#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
+#  if JDK_VER < 12
+  *(char **)vector[3] = (char *)examineSigcontextNestCount;
+#  else
+  *((JITInterface6 *)jitinterface)->p_CompiledCodeSignalHandler =
+	examineSigcontextNestCount;
+#  endif
+
+  asm(".global exam_point\n\t"
+      "exam_point: int $0x10");
+
+#  if JDK_VER < 12
+  *(char **)vector[3] = NULL;
+#  else
+  *((JITInterface6 *)jitinterface)->p_CompiledCodeSignalHandler = NULL;
+#  endif
+
+  {
+    if (sc_nest < 0) {
+      printf("FATAL: cannot examine the offset of signal context.\n");
+      JVM_Exit(1);
+    }
+  }
+#endif	/* SEARCH_SIGCONTEXT */
+
+
   /* set up link vector */
 #if JDK_VER < 12
   *(char **)vector[1] = (char *)initializeClass;
@@ -630,363 +598,6 @@
   printf("initializeClass(%s) done.\n", cbName(cb));
   fflush(stdout);
 #endif
-}
-
-
-#ifdef __FreeBSD__
-static bool_t signalHandler(int sig, int code, struct sigcontext *uc) {
-#else
-static bool_t signalHandler(int sig, void *info, void *uc) {
-#endif
-#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
-#  ifdef SEARCH_SIGCONTEXT
-  static int sc_offset = 0;
-  int32_t *ptr = ((int32_t *)&sig) + 1;
-#  endif	/* SEARCH_SIGCONTEXT */
-  SIGCONTEXT *sc = NULL;
-  struct methodblock *mb;
-  CodeInfo *codeinfo;
-  uint32_t native_off;
-#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
-#ifdef EXC_BY_SIGNAL
-  throwentry *tentry;
-  uint32_t jump_target = 0;
-#endif	/* EXC_BY_SIGNAL */
-
-#if 0
-#if 1
-  signal(sig, SIG_DFL);
-#else
-  {
-    struct sigaction sigAct;
-    sigAct.sa_handler = SIG_DFL;
-    sigemptyset(&sigAct.sa_mask);
-    sigaction(sig, &sigAct, (struct sigaction *)NULL);
-  }
-#endif
-#endif
-
-#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
-  printf("Signal handler: %d (sys_thread_t: %x)\n", sig, (int)sysThreadSelf());
-#endif
-
-
-#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
-#ifndef SEARCH_SIGCONTEXT
-  sc = (SIGCONTEXT *)uc;
-#else
-  /* get signal context */
-  sc = (SIGCONTEXT *)(ptr + sc_offset);
-
-#  ifdef __FreeBSD__
-  if ( !(sc->SC_GS & 0xffff == reg_gs) || !(sc->SC_FS & 0xffff == reg_fs) ||
-       !(sc->SC_ES & 0xffff == reg_es) || !(sc->SC_DS & 0xffff == reg_ds) ) {
-#  else
-  if ( !(sc->SC_GS == reg_gs) || !(sc->SC_FS == reg_fs) ||
-       !(sc->SC_ES == reg_es) || !(sc->SC_DS == reg_ds) ) {
-#  endif	/* __FreeBSD__ */
-    /* search signal context */
-#ifdef RUNTIME_DEBUG
-    printf("sc_offset(%d) is obsolete, search.\n", sc_offset);
-    fflush(stdout);
-#endif
-#define SC_SEARCH_WIDTH	100
-    for (sc_offset = 0; sc_offset < SC_SEARCH_WIDTH; sc_offset++) {
-#  ifdef __FreeBSD__
-      if ( (((SIGCONTEXT *)ptr)->SC_GS & 0xffff == reg_gs) &&
-	   (((SIGCONTEXT *)ptr)->SC_FS & 0xffff == reg_fs) &&
-	   (((SIGCONTEXT *)ptr)->SC_ES & 0xffff == reg_es) &&
-	   (((SIGCONTEXT *)ptr)->SC_DS & 0xffff == reg_ds) )
-#  else
-      if ( (((SIGCONTEXT *)ptr)->SC_GS == reg_gs) &&
-	   (((SIGCONTEXT *)ptr)->SC_FS == reg_fs) &&
-	   (((SIGCONTEXT *)ptr)->SC_ES == reg_es) &&
-	   (((SIGCONTEXT *)ptr)->SC_DS == reg_ds) )
-#  endif	/* __FreeBSD__ */
-	break;
-      else
-	ptr += 1;
-    }
-    if (sc_offset >= SC_SEARCH_WIDTH) {
-      printf("FATAL: cannot find signal context on stack.");
-      JVM_Exit(1);
-    }
-#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
-    printf("sc_offset: %d\n", sc_offset);
-#endif
-    sc = (SIGCONTEXT *)ptr;
-  }
-#endif	/* SEARCH_SIGCONTEXT*/
-
-#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG) || (defined(GET_SIGCONTEXT) && !defined(EXC_BY_SIGNAL))
-  printf("sigcontext: 0x%08x\n", (int)sc);  fflush(stdout);
-  showSigcontext(sc);
-#endif
-#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
-
-
-#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
-  if ((sig != SIGSEGV) && (sig != SIGFPE))  return FALSE;
-
-  mb = EE()->current_frame->current_method;
-  if (!mb)  return FALSE;
-#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
-  printf("method(0x%x)", (int)mb);  fflush(stdout);
-  printf(": %s#%s %s\n", cbName(mb->fb.clazz), mb->fb.name, mb->fb.signature);
-  fflush(stdout);
-#endif
-  if (!mb->CompiledCode)  return FALSE;		/* not compiled */
-  native_off =
-	((uint32_t)sc->SC_EIP) - ((uint32_t)mb->CompiledCode);
-#ifdef RUNTIME_DEBUG
-  printf("native off: 0x%x\n", native_off);
-  fflush(stdout);
-#endif
-#ifndef EXC_BY_SIGNAL
-  return FALSE;
-#else
-  codeinfo = (CodeInfo *)(mb->CompiledCodeInfo);
-  tentry = throwtableGet(codeinfo, native_off);
-
-#define IP_SEARCH_COUNT	3
-  if (!tentry) {	/* search EIP in native code */
-    uint32_t *ebp;
-    int i;
-#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
-    printf("throwentry is null !\n");  fflush(stdout);
-#endif	/* RUNTIME_DEBUG || COMPILE_DEBUG */
-
-    ebp = (uint32_t *)sc->SC_EBP;
-
-    for (i = 0; i < IP_SEARCH_COUNT; i++) {
-      uint32_t *sp = ebp + 1;
-
-      native_off = *sp - (uint32_t)mb->CompiledCode;
-      if ((native_off >= 0) && (native_off <= codeinfo->code_size)) {
-	tentry = throwtableGet(codeinfo, native_off);
-	if (tentry) {
-#ifdef ARITHEXC_BY_SIGNAL
-	  if (sig == SIGFPE) {
-	    int opc = tentry->opcode;
-	    if ((opc != opc_idiv) && (opc != opc_irem) &&
-		(opc != opc_ldiv) && (opc != opc_lrem))
-	      continue;
-	  }
-#endif	/* ARITHEXC_BY_SIGNAL */
-	  sc->SC_ESP = (uint32_t)(sp + 1);	/* stack top in the frame */
-	  sc->SC_EIP = *sp;			/* %eip on the native code */
-	  goto tentry_is_found;
-	}
-      }
-      ebp = (uint32_t *)*ebp;
-    }	/* for (i = 0; i < IP_SEARCH_COUNT; ... */
-    goto signal_handler_error;
-  tentry_is_found:
-  }
-#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
-  printf("throwentry: ");
-  fflush(stdout);
-  if (tentry)
-    printf("start: 0x%x, len: 0x%x, byteoff: 0x%x\n",
-		tentry->start, tentry->len, tentry->byteoff);
-  else
-    printf("(null)\n");
-  fflush(stdout);
-#endif	/* RUNTIME_DEBUG || COMPILE_DEBUG */
-
-#ifdef NULLEXC_BY_SIGNAL
-  if (sig == SIGSEGV) {
-	/* NullPointerException occurred */
-    SignalError(NULL, JAVAPKG "NullPointerException", 0);
-	/* set ee->exception.exc, exception object */
-  }
-#endif
-#if defined(NULLEXC_BY_SIGNAL) && defined(ARITHEXC_BY_SIGNAL)
-  else
-#endif
-#ifdef ARITHEXC_BY_SIGNAL
-  if (sig == SIGFPE) {
-    if ((tentry->opcode == opc_idiv) || (tentry->opcode == opc_irem)) {
-      if (sc->SC_ECX /* divisor */ == 0) {
-	/* ArithmeticException occurred */
-	SignalError(NULL, JAVAPKG "ArithmeticException", "/ by zero");
-      }
-      else if ((sc->SC_EAX /* dividend */ == 0x80000000) &&
-	       (sc->SC_ECX /* divisor  */ == -1)) {
-	/* idiv insn. of x86 causes it: 0x80000000 / -1 */
-	sc->SC_EAX = 0x80000000;
-	sc->SC_EDX = 0;
-	jump_target = sc->SC_EIP + 2;	/* `+ 2' skips idiv `0xf7 0xXX' */
-      }
-      else {
-	float dividend, divisor;
-	memcpy(&dividend, &(sc->SC_EAX), 4);
-	memcpy(&divisor, &(sc->SC_ECX), 4);
-	printf("FATAL: SIGFPE occurred in %s: %e %s %e.\n",
-		((tentry->opcode == opc_idiv)?"idiv":"irem"),
-		(double)dividend, ((tentry->opcode == opc_idiv)?"/":"%"),
-		(double)divisor);
-	fflush(stdout);
-
-	goto signal_handler_error;
-      }
-    }
-    else if ((tentry->opcode == opc_ldiv) || (tentry->opcode == opc_lrem)) {
-      uint32_t *sp = (uint32_t *)sc->SC_ESP;
-      sc->SC_ESP += 24;
-      /* `back up'ed registers in ldiv */
-      sc->SC_EBP = *(sp + 4);	/* *(sp + 4) is %ebp */
-      sc->SC_ESI = *(sp + 5);	/* *(sp + 5) is %esi */
-
-      /* dividend: (*(sp + 1) << 32) | *sp
-	 divisor : (*(sp + 3) << 32) | *(sp + 2) */
-
-      if (!((*(sp + 2)) | (*(sp + 3)))) {
-	/* ArithmeticException occurred */
-	SignalError(NULL, JAVAPKG "ArithmeticException", "/ by zero");
-      }
-#if 0
-      /* In this case,
-	 functions called by ldiv (__divdi3(),__moddi3()) don't cause SIGFPE */
-      else if ((*sp == 0) && (*(sp + 1) == 0x80000000) &&
-	       ((*(sp +2) & *(sp + 3)) == 0xffffffff)) {
-      }
-#endif
-    }
-    else {
-      printf("FATAL: SIGFPE occured in %s.",
-	((tentry->opcode == opc_ldiv)?"ldiv":"lrem"));
-      fflush(stdout);
-
-      goto signal_handler_error;
-    }
-  }	/* if (sig == SIGFPE) */
-#endif	/* ARITHEXC_BY_SIGNAL */
-#if defined(NULLEXC_BY_SIGNAL) || defined(ARITHEXC_BY_SIGNAL)
-  else
-#endif
-  {
-    return FALSE;
-  }
-
-
-  /* jump to exc_new or exc_handler in compiled code */
-
-  /* re-initialize signal handler
-     associated with raised signal */
-  {
-    struct sigaction sigAct = sigActForHandler;
-    sigaction(sig, &sigAct, (struct sigaction *)NULL);
-  }
-
-#ifdef __FreeBSD__
-  /* unmask the signal */
-  {
-    sigset_t sigmask;
-    sigemptyset(&sigmask);
-    sigaddset(&sigmask, sig);
-    sigprocmask(SIG_UNBLOCK, &sigmask, NULL);
-  }
-#endif	/* __FreeBSD__ */
-
-
-  /* set (int32_t)bytepcoff (local variable in assembledCode) */
-  *(((int32_t *)sc->SC_EBP) - 1) = tentry->byteoff;
-
-
-  /* JDK 1.2: set program counter to jump to exception handler */
-  /* JDK 1.1: jump to exception handler */
-#  if JDK_VER >= 12
-  {
-    uint32_t exc_handler;
-    exc_handler = jump_target ? jump_target :
-		(uint32_t)(mb->CompiledCode + codeinfo->exc_handler_nativeoff);
-    sc->SC_EIP = exc_handler;
-  }
-
-  return TRUE;
-#  else
-  {
-    register uint32_t exc_handler asm("edi");
-    register SIGCONTEXT *sc_ptr asm("edx");
-
-    exc_handler = jump_target ? jump_target :
-		(uint32_t)(mb->CompiledCode + codeinfo->exc_handler_nativeoff);
-    sc_ptr = sc;
-    asm("movl %0,%%esi" : : "m" (sc_ptr->SC_ESI));
-    asm("movl %0,%%ebp" : : "m" (sc_ptr->SC_EBP));
-    asm("movl %0,%%esp" : : "m" (sc_ptr->SC_ESP));
-
-    asm("movl %0,%%eax" : : "m" (sc_ptr->SC_EAX));
-    asm("movl %0,%%edx" : : "m" (sc_ptr->SC_EDX));
-
-    asm("jmp  *%0" : : "r" (exc_handler));
-  }
-#  endif	/* JDK_VER */
-	/* jump to exception handler */
-
-#endif	/* EXC_BY_SIGNAL */
-#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
-
-  return FALSE;
-
-signal_handler_error:
-  fprintf(stderr, "Signal %d\n", sig);
-  fflush(stderr);
-#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
-  if (sc) {
-    struct methodblock *sig_mb = methodByPC((unsigned char *)sc->SC_EIP);
-    fprintf(stderr, "  in ");
-    if (sig_mb) {
-      uint32_t nativepc =
-		(uint32_t)sc->SC_EIP - (uint32_t)sig_mb->CompiledCode;
-      CodeInfo *info = (CodeInfo *)sig_mb->CompiledCodeInfo;
-      fprintf(stderr, "%s#%s %s\n",
-		cbName(fieldclass(&sig_mb->fb)),
-		sig_mb->fb.name, sig_mb->fb.signature);
-      fprintf(stderr, "  native PC: 0x%x(%d)\n", nativepc, nativepc);
-#ifdef EXC_BY_SIGNAL
-      if (info) {
-	throwentry *tentry = throwtableGet(info, nativepc);
-	if (tentry) {
-	  int bytepc = tentry->byteoff;
-	  fprintf(stderr, "  byte   PC: 0x%x(%d)\n", bytepc, bytepc);
-	}
-      }
-#endif	/* EXC_BY_SIGNAL */
-    }
-    {
-      char fpuenv[28];
-      fillFPUEnv(fpuenv);
-      showFPUEnv(stderr, "  ", fpuenv);
-    }
-    fprintf(stderr, "\n");
-    fflush(stderr);
-
-    showSigcontext(sc);
-
-    fprintf(stderr, "\n");
-    fflush(stderr);
-  }
-#endif
-  JVM_Exit(1);
-}
-
-
-static void showFPUEnv(FILE *fp, char *indent, char fpuenv[28]) {
-  if (!indent)  indent = "";
-  if (!fp)  fp = stdout;
-
-  fprintf(fp, "%sFPU control word: 0x%04x\n", indent,
-		*((int16_t *)(fpuenv + 0)));
-  fprintf(fp, "%sFPU status  word: 0x%04x\n", indent,
-		*((int16_t *)(fpuenv + 4)));
-  fprintf(fp, "%sFPU tag     word: 0x%04x\n", indent,
-		*((int16_t *)(fpuenv + 8)));
-  fprintf(fp, "%sFPU FIP         : 0x%08x\n", indent,
-		*((int32_t *)(fpuenv + 12)));
-
-  fflush(fp);
 }
 
 
diff -aruN shujit-0.3.13/compiler.h shujit/compiler.h
--- shujit-0.3.13/compiler.h	Sat Oct 16 17:30:38 1999
+++ shujit/compiler.h	Tue Dec 28 16:24:53 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1996,1997,1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1996,1997,1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -276,13 +276,20 @@
  * Complement macros
  */
 #if 1
+#  ifndef HAVE_GREENTHR_HEADER
+#    define NATIVE	/* for Linux/JDK 1.1.8v1 */
+#  endif
 #  include "sys_api.h"
+#  undef NATIVE
 #else
 #  define sysMalloc	malloc
 #  define sysFree	free
 #  define sysCalloc	calloc
 #  define sysRealloc	realloc
 #endif
+#if JDK_VER < 12 && !defined(sysThreadSelf)
+#  define sysThreadSelf	threadSelf
+#endif
 
 #if JDK_VER < 12
 #  define ACC_STRICT	0x0800 /* ACC_XXUNUSED1*/	/* strictfp */
@@ -310,7 +317,11 @@
 #endif	/* JDK_VER */
 
 #if 1
+#  ifndef HAVE_GREENTHR_HEADER
+#    define NATIVE	/* for Linux/JDK 1.1.8v1 */
+#  endif
 #  include "monitor.h"	/* for monitor{Enter,Exit}() and macro BINCLASS_*() */
+#  undef NATIVE
 #else
 typedef struct sys_mon sys_mon_t;
 extern sys_mon_t *_binclass_lock;
@@ -331,7 +342,7 @@
 #else
 #  define SYS_NAME	"shuJIT"
 #endif
-#  define CREDIT "  " SYS_NAME "  for Sun JVM/IA-32  Copyright 1998,1999 by SHUDO Kazuyuki\n"
+#  define CREDIT "  " SYS_NAME "  for Sun JVM/IA-32  Copyright 1998,1999,2000 by SHUDO Kazuyuki\n"
 
 #if JDK_VER < 12
 #  define COMPILER_VERSION	5
@@ -467,22 +478,18 @@
 extern bool_t is_fpupc_double;
 	/* Is the FPU rounding precision double? */
 
+/* in signal.c */
+#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
+extern int sc_nest;
+#endif;
+
 /* in code.c */
 /* for strictfp */
 #undef STRICT_PRELOAD
 	/* It has a preload to preload scales into FPU register yet. */
 #define STRICT_USE_FSCALE
-#ifdef STRICT_USE_FSCALE
-extern double double_scale_pos;	/*   16383 - 1023 */
-extern double double_scale_neg;	/* -(16383 - 1023) */
-extern double single_scale_pos;	/*   16383 - 127 */
-extern double single_scale_neg;	/* -(16383 - 127) */
-#else
-extern unsigned const char double_scale_pos[10];/* 2^  (16383 - 1023) */
-extern unsigned const char double_scale_neg[10];/* 2^ -(16383 - 1023) */
-extern unsigned const char single_scale_pos[10];/* 2^  (16383 - 127) */
-extern unsigned const char single_scale_neg[10];/* 2^ -(16383 - 127) */
-#endif	/* STRICT_USE_FSCALE */
+#define STRICT_FSCALE_USE_FLOAT
+
 #if 0
 extern struct methodtable *object_methodtable;
 	/* for the macro OBJ_ARRAY_METHODTABLE in code.h */
@@ -493,19 +500,6 @@
 extern struct methodtable *proxy_methodtable;
 #endif	/* METAVM */
 
-#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
-#  ifdef linux
-extern unsigned short reg_gs;
-extern unsigned short reg_fs;
-#  endif
-extern unsigned short reg_es;
-extern unsigned short reg_ds;
-#  ifdef __FreeBSD__
-extern unsigned short reg_cs;
-extern unsigned short reg_ss;
-#  endif
-#endif	/* (EXC_BY_SIGNAL || GET_SIGCONTEXT) && SEARCH_SIGCONTEXT */
-
 #ifdef CODE_DB
 #  ifdef GDBM
 #    include <gdbm.h>
@@ -577,6 +571,23 @@
 /*
  * Global Functions
  */
+/* in signal.c */
+#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
+#ifdef __FreeBSD__
+bool_t examineSigcontextNestCount(int sig, int code, struct sigcontext *uc);
+#else
+bool_t examineSigcontextNestCount(int sig, void *info, void *uc);
+#endif
+#endif	/* SEARCH_SIGCONTEXT */
+#ifdef __FreeBSD__
+bool_t signalHandler(int sig, int code, struct sigcontext *uc);
+#else
+bool_t signalHandler(int sig, void *info, void *uc);
+#endif
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+extern void showSigcontext(SIGCONTEXT *sc);
+#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
+
 /* in code.c */
 extern volatile void assembledCode(
 	JHandle *o, struct methodblock *mb, int args_size, ExecEnv *ee,
@@ -663,9 +674,6 @@
 #endif	/* CODE_DB */
 
 /* in runtime.c */
-#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
-extern void showSigcontext(SIGCONTEXT *sc);
-#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
 extern int invocationHelper(
 	JHandle *obj, struct methodblock *method, int args_size, ExecEnv *ee,
 	stack_item *var_base, int retsize
diff -aruN shujit-0.3.13/computil.c shujit/computil.c
--- shujit-0.3.13/computil.c	Sat Oct  9 12:32:23 1999
+++ shujit/computil.c	Thu Dec 23 12:58:41 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/config.h.in shujit/config.h.in
--- shujit-0.3.13/config.h.in	Fri Oct  1 13:19:13 1999
+++ shujit/config.h.in	Tue Dec 28 13:33:28 1999
@@ -15,10 +15,19 @@
 /* assembly code or C, which version of interpreter is used */
 #undef EXECUTEJAVA_IN_ASM
 
+/* whether the <asm/ucontext.h> exists */
+#undef HAVE_UCONTEXT_H
+
+/* whether the JDK_HOME/include(-old)/green_threads exists */
+#undef HAVE_GREENTHR_HEADER
+
 /* defined if the code DB function is enabled */
 #undef CODE_DB
 /* defined if DB library for code DB is gdbm */
 #undef GDBM
+
+/* defined if shuJIT supports thread migration */
+#undef MOBA
 
 /* defined if shuJIT is built to support MetaVM */
 #undef METAVM
diff -aruN shujit-0.3.13/configure shujit/configure
--- shujit-0.3.13/configure	Fri Oct  1 13:09:55 1999
+++ shujit/configure	Tue Dec 28 15:19:55 1999
@@ -14,6 +14,9 @@
 ac_help="$ac_help
  --disable-codedb	disable code DB "
 ac_help="$ac_help
+ --enable-moba
+			support thread migration "
+ac_help="$ac_help
  --enable-metavm-no-array
 			enable MetaVM and arrays are passed by value "
 ac_help="$ac_help
@@ -582,7 +585,7 @@
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:586: checking host system type" >&5
+echo "configure:589: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -603,7 +606,7 @@
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:607: checking target system type" >&5
+echo "configure:610: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -621,7 +624,7 @@
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:625: checking build system type" >&5
+echo "configure:628: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -654,7 +657,7 @@
 		# Extract the first word of "libgdbm.so", so it can be a program name with args.
 set dummy libgdbm.so; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:658: checking for $ac_word" >&5
+echo "configure:661: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ac_libgdbm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -691,7 +694,7 @@
 			# Extract the first word of "libndbm.so", so it can be a program name with args.
 set dummy libndbm.so; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:695: checking for $ac_word" >&5
+echo "configure:698: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ac_libndbm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -738,6 +741,21 @@
 
 
 
+# Check whether --enable-moba or --disable-moba was given.
+if test "${enable_moba+set}" = set; then
+  enableval="$enable_moba"
+  
+		ac_moba=yes
+		cat >> confdefs.h <<\EOF
+#define MOBA 1
+EOF
+
+	
+fi
+
+
+
+
 # Check whether --enable-metavm_no_array or --disable-metavm_no_array was given.
 if test "${enable_metavm_no_array+set}" = set; then
   enableval="$enable_metavm_no_array"
@@ -774,7 +792,7 @@
 
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:778: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:796: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -801,7 +819,7 @@
 fi
 
 echo $ac_n "checking C compiler""... $ac_c" 1>&6
-echo "configure:805: checking C compiler" >&5
+echo "configure:823: checking C compiler" >&5
 ac_cc=no
 if test -n "$CC"; then
 	if test -f "$CC"; then
@@ -810,7 +828,7 @@
 		# Extract the first word of "$CC", so it can be a program name with args.
 set dummy $CC; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:814: checking for $ac_word" >&5
+echo "configure:832: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_cc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -851,7 +869,7 @@
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:855: checking for $ac_word" >&5
+echo "configure:873: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_cc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -905,7 +923,7 @@
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:909: checking for $ac_word" >&5
+echo "configure:927: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_objdump'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -943,12 +961,12 @@
 
 
 if test "$ac_ruby" = no; then
-	{ echo "configure: error: Compilation need objdump (provided by GNU binutils)." 1>&2; exit 1; }
+	{ echo "configure: error: Compilation needs objdump (provided by GNU binutils)." 1>&2; exit 1; }
 fi
 # Extract the first word of "ruby", so it can be a program name with args.
 set dummy ruby; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:952: checking for $ac_word" >&5
+echo "configure:970: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_ruby'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -981,14 +999,14 @@
   echo "$ac_t""no" 1>&6
 fi
 
-
 if test "$ac_ruby" = no; then
-	{ echo "configure: error: Compilation need ruby." 1>&2; exit 1; }
+	{ echo "configure: error: Compilation needs ruby (see http://www.ruby-lang.org/)." 1>&2; exit 1; }
 fi
+
 # Extract the first word of "ci", so it can be a program name with args.
 set dummy ci; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:992: checking for $ac_word" >&5
+echo "configure:1010: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_ci'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1025,7 +1043,7 @@
 # Extract the first word of "co", so it can be a program name with args.
 set dummy co; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1029: checking for $ac_word" >&5
+echo "configure:1047: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_co'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1062,7 +1080,7 @@
 # Extract the first word of "mv", so it can be a program name with args.
 set dummy mv; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1066: checking for $ac_word" >&5
+echo "configure:1084: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_mv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1099,7 +1117,7 @@
 # Extract the first word of "rm", so it can be a program name with args.
 set dummy rm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1103: checking for $ac_word" >&5
+echo "configure:1121: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_rm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1136,7 +1154,7 @@
 # Extract the first word of "wc", so it can be a program name with args.
 set dummy wc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1140: checking for $ac_word" >&5
+echo "configure:1158: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_wc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1173,7 +1191,7 @@
 # Extract the first word of "etags", so it can be a program name with args.
 set dummy etags; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1177: checking for $ac_word" >&5
+echo "configure:1195: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_etags'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1211,7 +1229,7 @@
 # Extract the first word of "which", so it can be a program name with args.
 set dummy which; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1215: checking for $ac_word" >&5
+echo "configure:1233: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_which'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1249,7 +1267,7 @@
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1253: checking for $ac_word" >&5
+echo "configure:1271: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_grep'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1288,7 +1306,7 @@
 # Extract the first word of "sed", so it can be a program name with args.
 set dummy sed; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1292: checking for $ac_word" >&5
+echo "configure:1310: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_sed'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1321,12 +1339,12 @@
   echo "$ac_t""no" 1>&6
 fi
 
-for ac_prog in mawk gawk nawk awk
+for ac_prog in gawk mawk nawk awk
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1330: checking for $ac_word" >&5
+echo "configure:1348: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AWK'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1358,19 +1376,19 @@
 
 
 echo $ac_n "checking version of gcc""... $ac_c" 1>&6
-echo "configure:1362: checking version of gcc" >&5
+echo "configure:1380: checking version of gcc" >&5
 ac_ccver_string=`$ac_cc -v 2>&1 | $ac_grep 'gcc version' | $AWK '{print $3}'`
 case "$ac_ccver_string" in
 	3-9*|2.9*)
-		echo "$ac_t""recognized: gcc >= 2.95" 1>&6
+		echo "$ac_t""gcc >= 2.95" 1>&6
 		ac_gcc27=
 		;;
 	egcs*)
-		echo "$ac_t""recognized: egcs" 1>&6
+		echo "$ac_t""egcs" 1>&6
 		ac_gcc27=
 		;;
 	2.7*|2.6*|2.5*|2.4*)
-		echo "$ac_t""recognized: gcc 2.X (X <= 7)" 1>&6
+		echo "$ac_t""gcc <= 2.7" 1>&6
 		cat >> confdefs.h <<\EOF
 #define GCC27 1
 EOF
@@ -1385,7 +1403,7 @@
 
 
 echo $ac_n "checking install path of JDK""... $ac_c" 1>&6
-echo "configure:1389: checking install path of JDK" >&5
+echo "configure:1407: checking install path of JDK" >&5
 # Check whether --with-jdk or --without-jdk was given.
 if test "${with_jdk+set}" = set; then
   withval="$with_jdk"
@@ -1403,7 +1421,7 @@
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1407: checking for $ac_word" >&5
+echo "configure:1425: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_java'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1439,11 +1457,14 @@
 done
 test -n "$ac_java" || ac_java="no"
 
+if test "$ac_java" = no; then
+	{ echo "configure: error: java command is not found." 1>&2; exit 1; }
+fi
 
 # Extract the first word of "javac", so it can be a program name with args.
 set dummy javac; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1447: checking for $ac_word" >&5
+echo "configure:1468: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_javac'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1480,7 +1501,7 @@
 # Extract the first word of "javah", so it can be a program name with args.
 set dummy javah; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1484: checking for $ac_word" >&5
+echo "configure:1505: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_javah'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1517,7 +1538,7 @@
 # Extract the first word of "jar", so it can be a program name with args.
 set dummy jar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1521: checking for $ac_word" >&5
+echo "configure:1542: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_jar'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1554,7 +1575,7 @@
 # Extract the first word of "javadoc", so it can be a program name with args.
 set dummy javadoc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1558: checking for $ac_word" >&5
+echo "configure:1579: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_javadoc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1590,16 +1611,16 @@
 
 
 echo $ac_n "checking version of JDK""... $ac_c" 1>&6
-echo "configure:1594: checking version of JDK" >&5
+echo "configure:1615: checking version of JDK" >&5
 ac_jver_string=`$ac_java -green -Djava.compiler= -version 2>&1`
 case "$ac_jver_string" in
 	*\"1.1*)
 		ac_jver=11
-		echo "$ac_t""recognized: JDK 1.1" 1>&6
+		echo "$ac_t""JDK 1.1" 1>&6
 		;;
 	*\"1.2*)
 		ac_jver=12
-		echo "$ac_t""recognized: JDK 1.2" 1>&6
+		echo "$ac_t""JDK 1.2" 1>&6
 		;;
 	*)
 		{ echo "configure: error: unrecognized." 1>&2; exit 1; }
@@ -1619,7 +1640,7 @@
 
 
 echo $ac_n "checking asm or C, which version of interpreter is used""... $ac_c" 1>&6
-echo "configure:1623: checking asm or C, which version of interpreter is used" >&5
+echo "configure:1644: checking asm or C, which version of interpreter is used" >&5
 # Check whether --enable-c-interpreter or --disable-c-interpreter was given.
 if test "${enable_c_interpreter+set}" = set; then
   enableval="$enable_c_interpreter"
@@ -1644,21 +1665,21 @@
 fi
 
 if test "$ac_executejava_in_asm" = "yes"; then
-	echo "$ac_t""recognized: assembly code version" 1>&6
+	echo "$ac_t""assembly code version" 1>&6
 	cat >> confdefs.h <<\EOF
 #define EXECUTEJAVA_IN_ASM 1
 EOF
 
 else
-	echo "$ac_t""recognized: C version" 1>&6
+	echo "$ac_t""C version" 1>&6
 fi
 
 
 
 echo $ac_n "checking version of libc""... $ac_c" 1>&6
-echo "configure:1660: checking version of libc" >&5
+echo "configure:1681: checking version of libc" >&5
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1662: checking how to run the C preprocessor" >&5
+echo "configure:1683: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1673,13 +1694,13 @@
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1677 "configure"
+#line 1698 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1683: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1704: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1690,13 +1711,13 @@
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1694 "configure"
+#line 1715 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1700: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1721: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1707,13 +1728,13 @@
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1711 "configure"
+#line 1732 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1717: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1738: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1738,7 +1759,7 @@
 echo "$ac_t""$CPP" 1>&6
 
 cat > conftest.$ac_ext <<EOF
-#line 1742 "configure"
+#line 1763 "configure"
 #include "confdefs.h"
 
 		#include <stdio.h>
@@ -1753,18 +1774,19 @@
 rm -f conftest*
 
 if test "$ac_glibc2" = "yes"; then
-	echo "$ac_t""recognized: glibc2" 1>&6
+	echo "$ac_t""glibc2" 1>&6
 	cat >> confdefs.h <<\EOF
 #define GLIBC2 1
 EOF
 
 else
-	echo "$ac_t""recognized: not glibc2" 1>&6
+	echo "$ac_t""not glibc2" 1>&6
 fi
 
 
+
 echo $ac_n "checking type of an argument of monitorEnter()""... $ac_c" 1>&6
-echo "configure:1768: checking type of an argument of monitorEnter()" >&5
+echo "configure:1790: checking type of an argument of monitorEnter()" >&5
 ac_monitor_t=`$ac_grep monitorEnter $ac_jincdir/monitor.h | $ac_sed 's/(/ /' | $ac_sed "s/.* \(.*\));.*/\1/"`
 echo "$ac_t""$ac_monitor_t" 1>&6
 cat >> confdefs.h <<EOF
@@ -1772,6 +1794,30 @@
 EOF
 
 
+echo $ac_n "checking whether the <asm/ucontext.h> header exists""... $ac_c" 1>&6
+echo "configure:1799: checking whether the <asm/ucontext.h> header exists" >&5
+if test -f "/usr/include/asm/ucontext.h"; then
+	echo "$ac_t""exists" 1>&6
+	cat >> confdefs.h <<\EOF
+#define HAVE_UCONTEXT_H 1
+EOF
+
+else
+	echo "$ac_t""does not exist" 1>&6
+fi
+
+echo $ac_n "checking whether the JDK_HOME/include/green_threads directory exists""... $ac_c" 1>&6
+echo "configure:1811: checking whether the JDK_HOME/include/green_threads directory exists" >&5
+if test -d "$ac_jincdir/green_threads"; then
+	echo "$ac_t""exists" 1>&6
+	cat >> confdefs.h <<\EOF
+#define HAVE_GREENTHR_HEADER 1
+EOF
+
+else
+	echo "$ac_t""does not exist" 1>&6
+fi
+
 
 
 
@@ -1925,6 +1971,7 @@
 s%@ac_libgdbm@%$ac_libgdbm%g
 s%@ac_libndbm@%$ac_libndbm%g
 s%@ac_codedb@%$ac_codedb%g
+s%@ac_moba@%$ac_moba%g
 s%@ac_metavm@%$ac_metavm%g
 s%@ac_metavm_no_array@%$ac_metavm_no_array%g
 s%@SET_MAKE@%$SET_MAKE%g
diff -aruN shujit-0.3.13/configure.in shujit/configure.in
--- shujit-0.3.13/configure.in	Fri Oct  1 13:09:53 1999
+++ shujit/configure.in	Tue Dec 28 15:19:53 1999
@@ -29,6 +29,17 @@
 AC_SUBST(ac_libgdbm)
 
 
+AC_ARG_ENABLE(moba,
+	[ --enable-moba
+			support thread migration ],
+	[
+		ac_moba=yes
+		AC_DEFINE(MOBA)
+	],
+	[])
+AC_SUBST(ac_moba)
+
+
 AC_ARG_ENABLE(metavm_no_array,
 	[ --enable-metavm-no-array
 			enable MetaVM and arrays are passed by value ],
@@ -78,13 +89,13 @@
 AC_PATH_PROGS(ac_objdump, objdump, no)
 AC_SUBST(ac_objdump)
 if test "$ac_ruby" = no; then
-	AC_MSG_ERROR(Compilation need objdump (provided by GNU binutils).)
+	AC_MSG_ERROR(Compilation needs objdump (provided by GNU binutils).)
 fi
 AC_PATH_PROG(ac_ruby, ruby, no)
-AC_SUBST(ac_ruby)
 if test "$ac_ruby" = no; then
-	AC_MSG_ERROR(Compilation need ruby.)
+	AC_MSG_ERROR(Compilation needs ruby (see http://www.ruby-lang.org/).)
 fi
+AC_SUBST(ac_ruby)
 AC_PATH_PROG(ac_ci, ci, no)
 AC_SUBST(ac_ci)
 AC_PATH_PROG(ac_co, co, no)
@@ -108,15 +119,15 @@
 ac_ccver_string=`$ac_cc -v 2>&1 | $ac_grep 'gcc version' | $AWK '{print $3}'`
 case "$ac_ccver_string" in
 	[3-9]*|2.9*)
-		AC_MSG_RESULT(recognized: gcc >= 2.95)
+		AC_MSG_RESULT(gcc >= 2.95)
 		ac_gcc27=
 		;;
 	egcs*)
-		AC_MSG_RESULT(recognized: egcs)
+		AC_MSG_RESULT(egcs)
 		ac_gcc27=
 		;;
 	2.7*|2.6*|2.5*|2.4*)
-		AC_MSG_RESULT(recognized: gcc 2.X (X <= 7))
+		AC_MSG_RESULT(gcc <= 2.7)
 		AC_DEFINE(GCC27)
 		ac_gcc27=yes
 		;;
@@ -137,6 +148,9 @@
 ac_jbin="$ac_jhome/bin"
 
 AC_PATH_PROGS(ac_java, java jre, no, $ac_jbin)
+if test "$ac_java" = no; then
+	AC_MSG_ERROR(java command is not found.)
+fi
 AC_SUBST(ac_java)
 AC_PATH_PROG(ac_javac, javac, no, $ac_jbin)
 AC_SUBST(ac_javac)
@@ -152,11 +166,11 @@
 case "$ac_jver_string" in
 	*\"1.1*)
 		ac_jver=11
-		AC_MSG_RESULT(recognized: JDK 1.1)
+		AC_MSG_RESULT(JDK 1.1)
 		;;
 	*\"1.2*)
 		ac_jver=12
-		AC_MSG_RESULT(recognized: JDK 1.2)
+		AC_MSG_RESULT(JDK 1.2)
 		;;
 	*)
 		AC_MSG_ERROR(unrecognized.)
@@ -193,10 +207,10 @@
 		esac
 	])
 if test "$ac_executejava_in_asm" = "yes"; then
-	AC_MSG_RESULT(recognized: assembly code version)
+	AC_MSG_RESULT(assembly code version)
 	AC_DEFINE(EXECUTEJAVA_IN_ASM)
 else
-	AC_MSG_RESULT(recognized: C version)
+	AC_MSG_RESULT(C version)
 fi
 
 
@@ -210,18 +224,35 @@
 	],
 	ac_glibc2=yes)
 if test "$ac_glibc2" = "yes"; then
-	AC_MSG_RESULT(recognized: glibc2)
+	AC_MSG_RESULT(glibc2)
 	AC_DEFINE(GLIBC2)
 else
-	AC_MSG_RESULT(recognized: not glibc2)
+	AC_MSG_RESULT(not glibc2)
 fi
 
+
 dnl Checks for header files.
 
 AC_MSG_CHECKING(type of an argument of monitorEnter())
 ac_monitor_t=`$ac_grep monitorEnter $ac_jincdir/monitor.h | $ac_sed 's/(/ /' | $ac_sed "s/.* \(.*\));.*/\1/"`
 AC_MSG_RESULT($ac_monitor_t)
 AC_DEFINE_UNQUOTED(MONITOR_T, $ac_monitor_t)
+
+AC_MSG_CHECKING(whether the <asm/ucontext.h> header exists)
+if test -f "/usr/include/asm/ucontext.h"; then
+	AC_MSG_RESULT(exists)
+	AC_DEFINE(HAVE_UCONTEXT_H)
+else
+	AC_MSG_RESULT(does not exist)
+fi
+
+AC_MSG_CHECKING(whether the JDK_HOME/include/green_threads directory exists)
+if test -d "$ac_jincdir/green_threads"; then
+	AC_MSG_RESULT(exists)
+	AC_DEFINE(HAVE_GREENTHR_HEADER)
+else
+	AC_MSG_RESULT(does not exist)
+fi
 
 
 dnl Checks for typedefs, structures, and compiler characteristics.
diff -aruN shujit-0.3.13/gentable.rb shujit/gentable.rb
--- shujit-0.3.13/gentable.rb	Mon Oct  4 14:57:32 1999
+++ shujit/gentable.rb	Tue Dec 28 19:51:44 1999
@@ -169,7 +169,7 @@
     chomp!()
     elems = split()
     funcname = elems.pop()
-    if funcname =~ /^%/		# %register
+    if funcname =~ /^%/ || funcname == '*ABS*'		# %register or `*ABS*'
       next
     end
     max_func_off = off if off > max_func_off
@@ -243,10 +243,10 @@
     else
       bytepc_table[opcode][init_state] = array
     end
-  elsif /70 70 70/		# jump to exception handler
+  elsif /70 70/		# jump to exception handler
     i = 1
     i += 1 while elems[i] != '70'
-    off = elems[0].chop().hex() + i - 1 - code_addr
+    off = elems[0].chop().hex() + i - 2 - code_addr
     max_jumpexc_off = off if off > max_jumpexc_off
 #print "jump to exception handler: #{off}\n"
     if init_state == STANY
@@ -266,10 +266,10 @@
     else
       jumpexc_table[opcode][init_state] = array
     end
-#  elsif /72 72 72/		# jump instruction
+#  elsif /72 72/		# jump instruction
 #    i = 1
 #    i += 1 while elems[i] != '72'
-#     off = elems[0].chop().hex() + i - 1 - code_addr
+#     off = elems[0].chop().hex() + i - 2 - code_addr
 # #print "jump instruction: #{off}\n"
 #     if init_state == STANY
 #       array = jump_table[opcode][0];
@@ -288,10 +288,10 @@
 #     else
 #       jump_table[opcode][init_state] = array
 #     end
-  elsif /74 74 74/		# return instruction
+  elsif /74 74/		# return instruction
     i = 1
     i += 1 while elems[i] != '74'
-    off = elems[0].chop().hex() + i - 1 - code_addr
+    off = elems[0].chop().hex() + i - 2 - code_addr
 #print "return instruction: #{off}\n"
     if init_state == STANY
       array = jumpret_table[opcode][0];
diff -aruN shujit-0.3.13/invoker.c shujit/invoker.c
--- shujit-0.3.13/invoker.c	Sat Oct 16 18:25:57 1999
+++ shujit/invoker.c	Tue Dec 28 18:51:50 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/linker.c shujit/linker.c
--- shujit-0.3.13/linker.c	Sat Oct  9 12:32:13 1999
+++ shujit/linker.c	Thu Dec 23 12:58:53 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1999 SHUDO Kazuyuki
+  Copyright (C) 1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/metavm/GNUmakefile shujit/metavm/GNUmakefile
--- shujit-0.3.13/metavm/GNUmakefile	Sat Oct 16 19:16:38 1999
+++ shujit/metavm/GNUmakefile	Tue Dec 28 19:20:02 1999
@@ -3,12 +3,12 @@
 
 # environment
 
-JDK_VER = 11
-J_INCDIR = /usr/local/java/include
+JDK_VER = 12
+J_INCDIR = /usr/local/java/include-old
 
 # command
 
-CC = /usr/bin/egcs
+CC = /usr/bin/gcc
 CI = /usr/bin/ci
 CO = /usr/bin/co
 MV = /bin/mv
diff -aruN shujit-0.3.13/runtime.c shujit/runtime.c
--- shujit-0.3.13/runtime.c	Sat Oct 16 17:30:47 1999
+++ shujit/runtime.c	Mon Dec 27 18:58:44 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -31,56 +31,6 @@
 extern long JavaStackSize;	/* declared in threads.h */
 
 
-#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
-/*
- * show contents of structure sigcontext
- */
-void showSigcontext(SIGCONTEXT *sc) {
-  printf("SS: %04x, CS: %04x, DS: %04x, ES: %04x, FS: %04x, GS: %04x\n",
-#if defined(__FreeBSD__)
-	sc->sc_ss & 0xffff, sc->sc_cs & 0xffff,
-	sc->sc_ds & 0xffff, sc->sc_es & 0xffff,
-	sc->sc_fs & 0xffff, sc->sc_gs & 0xffff
-#else
-	sc->ss, sc->cs, sc->ds, sc->es, sc->fs, sc->gs
-#endif
-  );
-
-  printf("EAX: %08x, ECX: %08x, EDX: %08x, EBX: %08x\n",
-	sc->SC_EAX, sc->SC_ECX, sc->SC_EDX, sc->SC_EBX);
-
-  printf("ESI: %08x, EDI: %08x\n",
-	sc->SC_ESI, sc->SC_EDI);
-
-  printf("ESP: %08x, EBP: %08x EIP: %08x\n",
-	sc->SC_ESP, sc->SC_EBP, sc->SC_EIP);
-
-#if defined(linux)
-  printf("ESP at signal: %08x\n", sc->esp_at_signal);
-#endif
-
-  {
-    uint32_t *esp = (uint32_t *)sc->SC_ESP;
-    if (esp)
-      printf("(ESP+4): %08x, (ESP): %08x\n", *(esp+1), *esp);
-  }
-  {
-    unsigned char *eip = (unsigned char *)sc->SC_EIP;
-    if (eip)
-      printf("(EIP): %02x %02x %02x %02x %02x %02x %02x %02x"
-		"  %02x %02x %02x %02x %02x %02x %02x %02x\n",
-	*eip,*(eip+1),*(eip+2),*(eip+3),*(eip+4),*(eip+5),*(eip+6),*(eip+7),
-	*(eip+8),*(eip+9),*(eip+10),*(eip+11),*(eip+12),*(eip+13),
-	*(eip+14),*(eip+15));
-  }
-
-  printf("trapno: %02x\n", sc->SC_TRAPNO);
-
-  fflush(stdout);
-}
-#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
-
-
 /*
  * returns: TRUE if success, FALSE if failure.
  */
@@ -1055,6 +1005,9 @@
 	, int runtime_debug
 #endif
 ) {
+#if 1
+  int runtime_debug = 1;
+#endif
   ClassClass *methodClazz;
   cp_item_type *constant_pool;
   unsigned char *type_table;
diff -aruN shujit-0.3.13/signal.c shujit/signal.c
--- shujit-0.3.13/signal.c	Thu Jan  1 09:00:00 1970
+++ shujit/signal.c	Tue Dec 28 18:55:03 1999
@@ -0,0 +1,536 @@
+/*
+  This file is part of shuJIT,
+  Just In Time compiler for Sun Java Virtual Machine.
+
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  $Id$
+*/
+
+#include "compiler.h"
+
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+#  include <signal.h>
+#  if defined(linux) && defined(HAVE_UCONTEXT_H)
+#    if (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)
+typedef struct sigaltstack stack_t;
+	/* glibc 2.0 needs stack_t type. but cannot include <asm/signal.h> */
+#    endif	/* glibc 2.0 */
+#    include <asm/ucontext.h>	/* neither <ucontext.h> nor <sys/ucontext.h> */
+#  endif
+#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
+
+
+/*
+ * Local Functions
+ */
+static void showFPUEnv(FILE *, char *indent, char fpuenv[28]);
+#define fillFPUEnv(FPUENV)	asm("fstenv %0" : "=m" (FPUENV))
+
+
+/*
+ * Definitions
+ */
+/* return from signal handler */
+/* JDK 1.2: set program counter to jump to exception handler
+   JDK 1.1: jump to exception handler */
+#if JDK_VER >= 12
+#  define SIGRETURN(SC, EBP)	return TRUE;
+#else
+#  if defined(__FreeBSD__)
+#    define SIGRETURN(SC, EBP)	sigreturn(SC);
+#  elif defined(sun)
+#    define SIGRETURN(SC, EBP)	sigcontext(SC);
+#  else	/* linux */
+#    define SIGRETURN(SC, EBP) \
+  {\
+    register int eax asm("eax");\
+    asm("movl  %1,%%ebp" : "=a" (eax) : "m" (EBP));\
+    return eax;\
+  }
+#  endif	/* os */
+#endif	/* JDK_VER */
+
+
+
+/*
+ * Variables
+ */
+#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
+int sc_nest = -1;	/* -1: invalid */
+static int ucontext_used = 0;
+#endif
+
+
+#if (defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)) && defined(SEARCH_SIGCONTEXT)
+#ifdef __FreeBSD__
+bool_t examineSigcontextNestCount(int sig, int code, struct sigcontext *uc0) {
+#else
+bool_t examineSigcontextNestCount(int sig, void *info, void *uc0) {
+#endif
+  SIGCONTEXT *sc, *found_sc;
+  uint32_t *ebp, *found_ebp = 0;
+  int i;
+
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
+  printf("examineSigcontextNestCount: sig %d (sys_thread_t: %x)\n",
+	sig, (int)sysThreadSelf());
+#endif
+
+  asm("movl  %%ebp,%0" : "=r" (ebp));
+
+#define SC_SEARCH_WIDTH	10
+  for (i = 0; i < SC_SEARCH_WIDTH; i++) {
+    extern void exam_point();	/* in compiler.c */
+
+    sc = (SIGCONTEXT *)(ebp + 3);
+#ifdef RUNTIME_DEBUG
+    printf("  i:%d, eip:%x\n", i, sc->SC_EIP);
+    fflush(stdout);
+#endif
+#define INT_INSN_SIZE	2	/* size of int $0x10 */
+    if ((sc->SC_EIP == ((uint32_t)exam_point))) {	/* found */
+      sc_nest = i;
+      ucontext_used = 0;	/* false */
+      found_sc = sc;
+      found_ebp = ebp;
+#ifdef RUNTIME_DEBUG
+      printf("  sc_nest: %d, ucontext is not used.\n", sc_nest);
+      fflush(stdout);
+#endif
+      /* break; */
+		/* must not do break to use last found sigcontext
+		   with LinuxThreads in glibc 2.1.2 */
+    }
+#ifdef HAVE_UCONTEXT_H
+    else {	/* not found */
+      struct ucontext *uc;
+      uc = (struct ucontext *)ebp[4];
+      if ((ebp < (uint32_t *)uc) && ((uint32_t *)uc < ebp + 0x100)) {
+	sc = (SIGCONTEXT *)&uc->uc_mcontext;
+	if (sc->SC_EIP == ((uint32_t)exam_point)) {	/* found */
+	  sc_nest = i;
+	  ucontext_used = 1;	/* true */
+	  found_sc = sc;
+	  found_ebp = ebp;
+#ifdef RUNTIME_DEBUG
+	  printf("  sc_nest: %d, ucontext is used.\n", sc_nest);
+	  fflush(stdout);
+#endif
+	  break;
+	}
+      }
+    }
+#endif	/* HAVE_UCONTEXT_H */
+
+    ebp = (uint32_t *)ebp[0];
+  }
+
+  if (sc_nest < 0) {
+    printf("FATAL: cannot examine the offset of signal context.\n");
+    JVM_Exit(1);
+  }
+
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
+  printf("sigcontext: 0x%08x\n", (int)found_sc);  fflush(stdout);
+  showSigcontext(found_sc);
+#endif
+
+  found_sc->SC_EIP += INT_INSN_SIZE;
+  SIGRETURN(found_sc, found_ebp);
+}
+#endif	/* (EXC_BY_SIGNAL || GET_SIGCONTEXT) && SEARCH_SIGCONTEXT */
+
+
+#ifdef __FreeBSD__
+bool_t signalHandler(int sig, int code, struct sigcontext *uc0) {
+#else
+bool_t signalHandler(int sig, void *info, void *uc0) {
+#endif
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+#  ifdef SEARCH_SIGCONTEXT
+  uint32_t *ebp;
+#  endif	/* SEARCH_SIGCONTEXT */
+  SIGCONTEXT *sc = NULL;
+  struct methodblock *mb;
+  CodeInfo *codeinfo;
+  uint32_t native_off;
+#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
+#ifdef EXC_BY_SIGNAL
+  throwentry *tentry;
+  uint32_t jump_target = 0;
+#endif	/* EXC_BY_SIGNAL */
+  int i;
+
+#if 0
+#if 1
+  signal(sig, SIG_DFL);
+#else
+  {
+    struct sigaction sigAct;
+    sigAct.sa_handler = SIG_DFL;
+    sigemptyset(&sigAct.sa_mask);
+    sigaction(sig, &sigAct, (struct sigaction *)NULL);
+  }
+#endif
+#endif	/* 0 */
+
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
+  printf("Signal handler: sig %d (sys_thread_t: %x)\n",
+	sig, (int)sysThreadSelf());
+#endif
+
+
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+#ifndef SEARCH_SIGCONTEXT
+#  ifdef __FreeBSD__
+  sc = (SIGCONTEXT *)uc0;
+#  else	/* linux */
+  sc = (SIGCONTEXT *) &((struct ucontext *)uc0)->uc_mcontext;
+#  endif
+#else
+  /* get signal context */
+  asm("movl  %%ebp,%0" : "=r" (ebp));
+  for (i = 0; i < sc_nest; i++) {
+    ebp = (uint32_t *)ebp[0];
+  }
+  if (!ucontext_used) {
+    sc = (SIGCONTEXT *)(ebp + 3);
+  }
+#ifdef HAVE_UCONTEXT_H
+  else {
+    sc = (SIGCONTEXT *) &((struct ucontext *)ebp[4])->uc_mcontext;
+  }
+#endif	/* HAVE_UCONTEXT_H */
+#endif	/* SEARCH_SIGCONTEXT*/
+
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG) || (defined(GET_SIGCONTEXT) && !defined(EXC_BY_SIGNAL))
+  printf("sigcontext: 0x%08x\n", (int)sc);  fflush(stdout);
+  showSigcontext(sc);
+#endif
+#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
+
+
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+  if ((sig != SIGSEGV) && (sig != SIGFPE))  return FALSE;
+
+  mb = EE()->current_frame->current_method;
+  if (!mb)  return FALSE;
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
+  printf("method(0x%x)", (int)mb);  fflush(stdout);
+  printf(": %s#%s %s\n", cbName(mb->fb.clazz), mb->fb.name, mb->fb.signature);
+  fflush(stdout);
+#endif
+  if (!mb->CompiledCode)  return FALSE;		/* not compiled */
+  native_off =
+	((uint32_t)sc->SC_EIP) - ((uint32_t)mb->CompiledCode);
+#ifdef RUNTIME_DEBUG
+  printf("native off: 0x%x\n", native_off);
+  fflush(stdout);
+#endif
+#ifndef EXC_BY_SIGNAL
+  return FALSE;
+#else
+  codeinfo = (CodeInfo *)(mb->CompiledCodeInfo);
+  tentry = throwtableGet(codeinfo, native_off);
+
+#define IP_SEARCH_COUNT	3
+  if (!tentry) {	/* search EIP in native code */
+    uint32_t *ebp;
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
+    printf("throwentry is null !\n");  fflush(stdout);
+#endif	/* RUNTIME_DEBUG || COMPILE_DEBUG */
+
+    ebp = (uint32_t *)sc->SC_EBP;
+
+    for (i = 0; i < IP_SEARCH_COUNT; i++) {
+      uint32_t *sp = ebp + 1;
+
+      native_off = *sp - (uint32_t)mb->CompiledCode;
+      if ((native_off >= 0) && (native_off <= codeinfo->code_size)) {
+	tentry = throwtableGet(codeinfo, native_off);
+	if (tentry) {
+#ifdef ARITHEXC_BY_SIGNAL
+	  if (sig == SIGFPE) {
+	    int opc = tentry->opcode;
+	    if ((opc != opc_idiv) && (opc != opc_irem) &&
+		(opc != opc_ldiv) && (opc != opc_lrem))
+	      continue;
+	  }
+#endif	/* ARITHEXC_BY_SIGNAL */
+	  sc->SC_ESP = (uint32_t)(sp + 1);	/* stack top in the frame */
+	  sc->SC_EIP = *sp;			/* %eip on the compiled code */
+	  sc->SC_EBP = ebp[0];	/* return one more frame */
+	  goto tentry_is_found;
+	}
+      }
+      ebp = (uint32_t *)ebp[0];
+    }	/* for (i = 0; i < IP_SEARCH_COUNT; ... */
+    goto signal_handler_error;
+  tentry_is_found:
+  }
+#if defined(RUNTIME_DEBUG) || defined(COMPILE_DEBUG)
+  printf("throwentry: ");
+  fflush(stdout);
+  if (tentry)
+    printf("start: 0x%x, len: 0x%x, byteoff: 0x%x\n",
+		tentry->start, tentry->len, tentry->byteoff);
+  else
+    printf("(null)\n");
+  fflush(stdout);
+#endif	/* RUNTIME_DEBUG || COMPILE_DEBUG */
+
+#ifdef NULLEXC_BY_SIGNAL
+  if (sig == SIGSEGV) {
+	/* NullPointerException occurred */
+    SignalError(NULL, JAVAPKG "NullPointerException", 0);
+	/* set ee->exception.exc, exception object */
+  }
+#endif
+#if defined(NULLEXC_BY_SIGNAL) && defined(ARITHEXC_BY_SIGNAL)
+  else
+#endif
+#ifdef ARITHEXC_BY_SIGNAL
+  if (sig == SIGFPE) {
+    if ((tentry->opcode == opc_idiv) || (tentry->opcode == opc_irem)) {
+      if (sc->SC_ECX /* divisor */ == 0) {
+	/* ArithmeticException occurred */
+	SignalError(NULL, JAVAPKG "ArithmeticException", "/ by zero");
+      }
+      else if ((sc->SC_EAX /* dividend */ == 0x80000000) &&
+	       (sc->SC_ECX /* divisor  */ == -1)) {
+	/* idiv insn. of x86 causes it: 0x80000000 / -1 */
+	sc->SC_EAX = 0x80000000;
+	sc->SC_EDX = 0;
+	jump_target = sc->SC_EIP + 2;	/* `+ 2' skips idiv `0xf7 0xXX' */
+      }
+      else {
+	float dividend, divisor;
+	memcpy(&dividend, &(sc->SC_EAX), 4);
+	memcpy(&divisor, &(sc->SC_ECX), 4);
+	printf("FATAL: SIGFPE occurred in %s: %e %s %e.\n",
+		((tentry->opcode == opc_idiv)?"idiv":"irem"),
+		(double)dividend, ((tentry->opcode == opc_idiv)?"/":"%"),
+		(double)divisor);
+	fflush(stdout);
+
+	goto signal_handler_error;
+      }
+    }
+    else if ((tentry->opcode == opc_ldiv) || (tentry->opcode == opc_lrem)) {
+      uint32_t *sp = (uint32_t *)sc->SC_ESP;
+      sc->SC_ESP += 24;
+      /* `back up'ed registers in ldiv */
+      sc->SC_EBP = *(sp + 4);	/* *(sp + 4) is %ebp */
+      sc->SC_ESI = *(sp + 5);	/* *(sp + 5) is %esi */
+
+      /* dividend: (*(sp + 1) << 32) | *sp
+	 divisor : (*(sp + 3) << 32) | *(sp + 2) */
+
+      if (!((*(sp + 2)) | (*(sp + 3)))) {
+	/* ArithmeticException occurred */
+	SignalError(NULL, JAVAPKG "ArithmeticException", "/ by zero");
+      }
+#if 0
+      /* In this case,
+	 functions called by ldiv (__divdi3(),__moddi3()) don't cause SIGFPE */
+      else if ((*sp == 0) && (*(sp + 1) == 0x80000000) &&
+	       ((*(sp +2) & *(sp + 3)) == 0xffffffff)) {
+      }
+#endif
+    }
+    else {
+      printf("FATAL: SIGFPE occured in %s.",
+	((tentry->opcode == opc_ldiv)?"ldiv":"lrem"));
+      fflush(stdout);
+
+      goto signal_handler_error;
+    }
+  }	/* if (sig == SIGFPE) */
+#endif	/* ARITHEXC_BY_SIGNAL */
+#if defined(NULLEXC_BY_SIGNAL) || defined(ARITHEXC_BY_SIGNAL)
+  else
+#endif
+  {
+    return FALSE;
+  }
+
+
+#ifdef RUNTIME_DEBUG
+  /* examine whether the signal is pending */
+  {
+    sigset_t pending_set;
+    if ((sigpending(&pending_set)) < 0)  perror("sigpending");
+    else {
+      printf("signal %d is pending: %s\n",
+	sig, (sigismember(&pending_set, sig) ? "TRUE":"FALSE"));
+      fflush(stdout);
+    }
+  }
+#endif
+
+
+  /* jump to exc_new or exc_handler in compiled code */
+
+#if 0
+  /* re-initialize signal handler
+     associated with raised signal */
+  {
+    struct sigaction sigAct = sigActForHandler;
+    sigaction(sig, &sigAct, (struct sigaction *)NULL);
+  }
+
+#ifdef __FreeBSD__
+  /* unmask the signal */
+  {
+    sigset_t sigmask;
+    sigemptyset(&sigmask);
+    sigaddset(&sigmask, sig);
+    sigprocmask(SIG_UNBLOCK, &sigmask, NULL);
+  }
+#endif	/* __FreeBSD__ */
+#endif	/* 0 */
+
+
+  /* set (int32_t)bytepcoff (local variable in assembledCode) */
+  *(((int32_t *)sc->SC_EBP) - 1) = tentry->byteoff;
+
+
+  {
+    uint32_t exc_handler;
+    exc_handler = jump_target ? jump_target :
+		(uint32_t)(mb->CompiledCode + codeinfo->exc_handler_nativeoff);
+#ifdef RUNTIME_DEBUG
+    printf("jump to 0x%x\n", exc_handler);  fflush(stdout);
+#endif
+    sc->SC_EIP = exc_handler;
+  }
+
+  SIGRETURN(sc, ebp);
+#endif	/* EXC_BY_SIGNAL */
+#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
+
+  return FALSE;
+
+signal_handler_error:
+  fprintf(stderr, "Signal %d\n", sig);
+  fflush(stderr);
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+  if (sc) {
+    struct methodblock *sig_mb = methodByPC((unsigned char *)sc->SC_EIP);
+    fprintf(stderr, "  in ");
+    if (sig_mb) {
+      uint32_t nativepc =
+		(uint32_t)sc->SC_EIP - (uint32_t)sig_mb->CompiledCode;
+      CodeInfo *info = (CodeInfo *)sig_mb->CompiledCodeInfo;
+      fprintf(stderr, "%s#%s %s\n",
+		cbName(fieldclass(&sig_mb->fb)),
+		sig_mb->fb.name, sig_mb->fb.signature);
+      fprintf(stderr, "  native PC: 0x%x(%d)\n", nativepc, nativepc);
+#ifdef EXC_BY_SIGNAL
+      if (info) {
+	throwentry *tentry = throwtableGet(info, nativepc);
+	if (tentry) {
+	  int bytepc = tentry->byteoff;
+	  fprintf(stderr, "  byte   PC: 0x%x(%d)\n", bytepc, bytepc);
+	}
+      }
+#endif	/* EXC_BY_SIGNAL */
+    }
+    {
+      char fpuenv[28];
+      fillFPUEnv(fpuenv);
+      showFPUEnv(stderr, "  ", fpuenv);
+    }
+    fprintf(stderr, "\n");
+    fflush(stderr);
+
+    showSigcontext(sc);
+
+    fprintf(stderr, "\n");
+    fflush(stderr);
+  }
+#endif
+  JVM_Exit(1);
+}
+
+
+static void showFPUEnv(FILE *fp, char *indent, char fpuenv[28]) {
+  if (!indent)  indent = "";
+  if (!fp)  fp = stdout;
+
+  fprintf(fp, "%sFPU control word: 0x%04x\n", indent,
+		*((int16_t *)(fpuenv + 0)));
+  fprintf(fp, "%sFPU status  word: 0x%04x\n", indent,
+		*((int16_t *)(fpuenv + 4)));
+  fprintf(fp, "%sFPU tag     word: 0x%04x\n", indent,
+		*((int16_t *)(fpuenv + 8)));
+  fprintf(fp, "%sFPU FIP         : 0x%08x\n", indent,
+		*((int32_t *)(fpuenv + 12)));
+
+  fflush(fp);
+}
+
+
+#if defined(EXC_BY_SIGNAL) || defined(GET_SIGCONTEXT)
+/*
+ * show contents of structure sigcontext
+ */
+void showSigcontext(SIGCONTEXT *sc) {
+  printf("SS: %04x, CS: %04x, DS: %04x, ES: %04x, FS: %04x, GS: %04x\n",
+#if defined(__FreeBSD__)
+	sc->sc_ss & 0xffff, sc->sc_cs & 0xffff,
+	sc->sc_ds & 0xffff, sc->sc_es & 0xffff,
+	sc->sc_fs & 0xffff, sc->sc_gs & 0xffff
+#else
+	sc->ss, sc->cs, sc->ds, sc->es, sc->fs, sc->gs
+#endif
+  );
+
+  printf("EAX: %08x, ECX: %08x, EDX: %08x, EBX: %08x\n",
+	sc->SC_EAX, sc->SC_ECX, sc->SC_EDX, sc->SC_EBX);
+
+  printf("ESI: %08x, EDI: %08x\n",
+	sc->SC_ESI, sc->SC_EDI);
+
+  printf("ESP: %08x, EBP: %08x EIP: %08x\n",
+	sc->SC_ESP, sc->SC_EBP, sc->SC_EIP);
+
+#if defined(linux)
+  printf("ESP at signal: %08x\n", sc->esp_at_signal);
+#endif
+
+  {
+    uint32_t *esp = (uint32_t *)sc->SC_ESP;
+    if (esp)
+      printf("(ESP+4): %08x, (ESP): %08x\n", *(esp+1), *esp);
+  }
+  {
+    unsigned char *eip = (unsigned char *)sc->SC_EIP;
+    if (eip)
+      printf("(EIP): %02x %02x %02x %02x %02x %02x %02x %02x"
+		"  %02x %02x %02x %02x %02x %02x %02x %02x\n",
+	*eip,*(eip+1),*(eip+2),*(eip+3),*(eip+4),*(eip+5),*(eip+6),*(eip+7),
+	*(eip+8),*(eip+9),*(eip+10),*(eip+11),*(eip+12),*(eip+13),
+	*(eip+14),*(eip+15));
+  }
+
+  printf("trapno: %02x\n", sc->SC_TRAPNO);
+
+  fflush(stdout);
+}
+#endif	/* EXC_BY_SIGNAL || GET_SIGCONTEXT */
diff -aruN shujit-0.3.13/tsctest/x86tsc.c shujit/tsctest/x86tsc.c
--- shujit-0.3.13/tsctest/x86tsc.c	Sun Jul 25 13:52:03 1999
+++ shujit/tsctest/x86tsc.c	Thu Dec 23 12:59:05 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/tsctest/x86tsc.h shujit/tsctest/x86tsc.h
--- shujit-0.3.13/tsctest/x86tsc.h	Sun Feb 14 19:49:14 1999
+++ shujit/tsctest/x86tsc.h	Thu Dec 23 12:59:10 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/txt/header shujit/txt/header
--- shujit-0.3.13/txt/header	Sun Feb 14 20:39:20 1999
+++ shujit/txt/header	Thu Dec 23 13:02:53 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/txt/jvmdi shujit/txt/jvmdi
--- shujit-0.3.13/txt/jvmdi	Thu Jan  1 09:00:00 1970
+++ shujit/txt/jvmdi	Sun Oct 17 23:51:18 1999
@@ -0,0 +1,9 @@
+JVMDI
+
+- JNI に追加された型
+  jthread
+  jthreadGroup
+  jframeID
+    スタックフレームひとつを表すポインタ
+  jlocation
+    64bit, メソッド中の executable position
diff -aruN shujit-0.3.13/txt/memo shujit/txt/memo
--- shujit-0.3.13/txt/memo	Sat Oct 16 18:12:52 1999
+++ shujit/txt/memo	Mon Oct 18 01:58:43 1999
@@ -10,7 +10,7 @@
     スタック積み直しを削減。
     native method を呼ぶ際に restack を減らせる？
     JIT の frame にする。
-  - JVM profiler interface に対応。
+  - JVM Debugger Interface, JVMProfiler Interface の各種イベントを発生させる。
     #ifdef HPROF
     if (jvmpi_event_flags & JVMPI_EVENT_METHOD_ENTRY_ON) {
 	jvmpi_method_entry(ee, o);
diff -aruN shujit-0.3.13/txt/moba shujit/txt/moba
--- shujit-0.3.13/txt/moba	Sun Jul 11 23:25:43 1999
+++ shujit/txt/moba	Mon Nov  1 10:32:41 1999
@@ -1,35 +1,127 @@
 実行状態の非同期移送に対応した実行時コンパイラ
 ネイティブコードの実行を許す異機種間非同期実行状態移送方式
 
-- externalize だけでなく、internalize も考える必要がある。
-  インタプリタ上の実行状態から、ネイティブコードの実行状態を作り出す必要あり。
+- to be considered
+  - suspend() にて、compiled code 用の suspend 処理をするかしないかを
+    決める方法。
+    - 近いうちに opc_suspend_check が実行される見込みがあれば、
+      opc_suspend_check 向けの処理を行う。-> migration safe な suspend
+    - migration safe な suspend なるべく行いたい。
+  - suspend が migration safe だったかどうかを知る方法。
+  - 
 
+- 実行状態の変換: JVM <-> JIT
+  - 他のスレッドにやらせた方がよいか。
+  - externalize だけでなく、internalize も考える必要がある。
+    JVM -> JIT の変換。
+  - スタックのコピーのために、型情報が要る。64bit か 32bit か。
+    reference か即値か、を知る必要があるのは移送システム(MOBA) のみ。
+
+- suspend 方法。
+  - MobaThread#suspend(), resume() を用意する。
+  - Thread#suspend(), resume() をすげかえる。
+    private native void suspend0();
+    private native void resume0();
+
+- 実行状態の変換 (JVM <-> JIT) を行うタイミング。
+  - suspend された時点。
+    × 無駄に変換をしてしまう。しかし、たいしたオーバヘッドではない？
+  - JVMDI 経由のアクセスをフックする。
+    × JDK 1.2 でのみ動作。
+    × フックなんて可能か？
+
+- JVM デフォルトの suspend, resume 方法
+  JVM_SuspendThread  (jvm.c)
+  threadSuspend  (threads.c)
+  #define sysThreadSuspend(a)
+	hpi_thread_interface->ThreadSuspend(a)  (sys_api.h)
+  hpi_thread_interface->ThreadSuspend = sysThreadSuspend  (share/hpi/src/hpi.c)
+  sysThreadSuspend
+    (solaris/hpi/{native,green}_threads/src/threads_md.c)
+  - native_threads の場合
+    np_suspend();
+      np: Non-posix の略。
+    thr_suspend  (threads_solaris.c)
+  - green_threads の場合
+    queueRemove(&runnable_queue, tid);
+      runnable キューから外す。
+
+- suspend 時、考慮すべき事項
+  - 自スレッドかそうでないか。
+  - JIT compiled code かインタプリタか。
+
+- suspend, resume の方式
+  - スレッドごとに必要な storage
+    - フラグ x 1
+      suspendReq
+    - モニタ x 1
+      suspendCond
+  - 課題
+    - Thread#interrupt に対応
+
+boolean suspendReq;	// suspend が要求されている。
+#if 0
+boolean jitSuspend;	// JIT compiled code 実行中に suspend している。
+#endif
+Object suspendCond;
 
 MobaThread#suspend() {
-  suspendReq = true;
-  try {
+	// 複数のスレッドから呼ばれることを考慮。要排他処理。
+  通常の suspend();
+  if (JIT compiled method 実行中) {
+	// todo: この後、opc_suspend_check が無かったら…
+    suspendReq = true;
     synchronized (suspendCond) {
-      suspendCond.wait();
-    }
-  } catch (InterruptedException e) {}
-}
+      通常の resume();
 
-MobaThread#resume() {
-  インタプリタ上のスタックをクリア;
-  synchronized (resumeCond) {
-    resumeCond.notify();
+      boolean suspend_done = false;
+      while (!suspend_done) {
+        try {
+          suspendCond.wait();
+		// 本当に suspend するまで caller は待つ。
+          suspend_done = true;
+        } catch (InterruptedException e) {}
+      }
+    }
   }
 }
 
 opc_suspend_check:
   if (current_thread.suspendReq) {
-    インタプリタ上に実行状態をコピー;
+    インタプリタの実行状態を作成;
     current_thread.suspendReq = false;
-    current_thread.suspendCond.notifyAll();
+    synchronized (suspendCond) {	// suspender が wait() するまで待つ。
+      current_thread.suspendCond.notifyAll();
+    }
+
+    synchronized (resumeCond) {
+#if 1
+      通常の suspend;
+#else
+      jitSuspend = true;
 
-    try {
-      synchronized (resumeCond) {
-        resumeCond.wait();
+      boolean resume_done = false;
+      while (!resume_done) {
+        try {
+          resumeCond.wait();
+          resume_done = true;
+        } catch (InterruptedException e) {}
       }
-    } catch (InterruptedException e) {}
+    }
+#endif
+    インタプリタの実行状態をクリア;
   }
+
+MobaThread#resume() {
+#if 1
+  通常の resume;
+#else
+  if (jitSuspend) {
+    synchronized (resumeCond) {
+      resumeCond.notify();
+	// resumeCond.wait() しているのは resume されているスレッドのみなので
+	// notifyAll() ではない。
+    }
+  }
+#endif
+}
diff -aruN shujit-0.3.13/txt/multiarray shujit/txt/multiarray
--- shujit-0.3.13/txt/multiarray	Thu Jan  1 09:00:00 1970
+++ shujit/txt/multiarray	Mon Dec 13 11:19:37 1999
@@ -0,0 +1,161 @@
+リニアなメモリレイアウトの多次元配列
+
+- 目的
+  - JIT による sematic expansion でどこまでできるか。
+
+- todo
+  - メモリレイアウトを決める。
+    次元ごとの配列長の格納場所など。
+
+- 対処が要る処理
+  - 配列の作成
+    - multianewarray
+    - newarray, anewarray の組み合わせによる作成は無視？
+    - 次元ごとの配列長をどう保持するか？
+  - 配列アクセス
+    - aload i, (push index, aaload) x n回,
+        read :  [ilfdabcs]aload
+        write:  何かを push(例: bipush), [ilfdabcs]astore
+  - 配列長の取得 (arraylength)
+    1次元目の長さを返すようにする。
+  - GC
+
+- データフロー解析
+  - ローカル変数の型を知るためには、データフロー解析が要る…
+  - ある時点でスロット n 番に何が入っているか。
+    LocalVariableTable を生成するか。
+  - どうせならデータ依存解析までしたい…きりがない。
+
+- 問題
+  - sub-array へのアクセス
+    - あきらめる？
+    - 必要に応じて配列オブジェクトを作る。
+      あるメモリ領域が複数オブジェクトから参照される。alias。
+        GC が対応する必要あり。
+
+
+[資料]
+
+- オブジェクトを push する命令
+  - フィールドから
+    getfield 等: getfield, getfield_quick, getfield2_quick, getfield_quick_w
+  - ローカル変数から
+    aload 等: aload, aload_[0-3]
+    - LocalVariableTable attribute がない限り、
+      コンパイル時に型情報を得られない。-> データフロー解析が要る。
+(
+  - コンスタントプールから、は有り得ない。
+    ldc 等: ldc, ldc_w (ldc2_w は long, double 型専用)
+    コンスタントプールに入り得るオブジェクトは String 型のみ。
+)
+
+
+- Java コンパイラが生成するバイトコード列
+
+  - 生成
+    new int[d0][d1]...[dn-1]
+
+    push (iconst_* or bipush or sipush or ldc) d0
+    ... d1
+    ...
+    ... dn-1
+    multianewarray クラス(2byte) 次元数(1byte)
+
+  - write
+    array[d0][d1]...[dn-1] = v
+
+    push array
+    push d0
+    aaload
+    ...
+    push dn-2
+    aaload
+    push dn-1
+    ---------- 以上は write, read で共通
+    push v
+    ?astore
+
+  - read
+    array[d0][d1]...[dn-1]
+
+    push d0
+    aaload
+    push d1
+    aaload
+    ...
+    push dn-2
+    aaload
+    push dn-1
+    ---------- 以上は write, read で共通
+    ?aload
+
+
+- 具体的なバイトコード
+
+  - 生成
+    int[][][][][] ary0 = new int[32768][32767][127][5][-1];
+
+   0 ldc #1 <Integer 32768>
+   2 sipush 32767
+   5 bipush 127
+   7 iconst_5
+   8 iconst_m1
+   9 multianewarray #5 dim #5 <Class [[[[[I>
+  13 astore_1
+
+  - write
+    ary[i+2][i*3] = i/4;
+    --- - -		aload_2, iload_1, iconst_2
+        ---		iadd
+    -------		aaload
+             - -	iload_1, iconst_3
+             ---	imul
+                    - -	iload_1, iconst_4
+                    ---	imul
+    -------------------	iastore
+
+   7 aload_2
+
+   8 iload_1
+   9 iconst_2
+  10 iadd
+
+  11 aaload
+
+  12 iload_1
+  13 iconst_3
+  14 imul
+
+  15 iload_1
+  16 iconst_4
+  17 idiv
+
+  18 iastore
+
+  - read
+    ary[3][4][5]
+    ---			aload_1
+        -		iconst_3
+    -----		aaload
+           -		iconst_4
+    --------		aaload
+              -		iconst_5
+    -----------		iaload
+
+  20 aload_1
+
+  21 iconst_3
+  22 aaload
+
+  23 iconst_4
+  24 aaload
+
+  25 iconst_5
+  26 iaload
+
+
+- 定数の push
+  iconst_*:	-1 〜 5
+  bipush:	signed 8 bit
+  sipush:	signed 16 bit
+  ldc:		絶対値がそれ以上
diff -aruN shujit-0.3.13/x86tsc.c shujit/x86tsc.c
--- shujit-0.3.13/x86tsc.c	Sun Jul 25 13:52:03 1999
+++ shujit/x86tsc.c	Thu Dec 23 12:59:05 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff -aruN shujit-0.3.13/x86tsc.h shujit/x86tsc.h
--- shujit-0.3.13/x86tsc.h	Sun Feb 14 19:49:14 1999
+++ shujit/x86tsc.h	Thu Dec 23 12:59:10 1999
@@ -2,7 +2,7 @@
   This file is part of shuJIT,
   Just In Time compiler for Sun Java Virtual Machine.
 
-  Copyright (C) 1998,1999 SHUDO Kazuyuki
+  Copyright (C) 1998,1999,2000 SHUDO Kazuyuki
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by