diff --git a/Makefile b/Makefile
index e5b3e8c..0fc2108 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-OBJS=emul.o emul_inst_exec.o emul_inst_decipher.o emul_reg.o emul_mem.o emul_label.o emul_io_std.o emul_opt.o
+OBJS=emul.o emul_inst_exec.o emul_inst_decipher.o emul_reg.o emul_mem.o emul_label.o emul_io_std.o emul_opt.o emul_repl.o
 PROGRAM=emul
 CC=gcc
 CCOPT=-lncurses
diff --git a/emul.c b/emul.c
index 98bc502..63d1060 100644
--- a/emul.c
+++ b/emul.c
@@ -1,7 +1,7 @@
 #include <stdio.h>
 #include "emul_inst_exec.h"
 #include "emul_opt.h"
-//#include <unistd.h>
+#include "emul_repl.h"
 
 void event_fa(char *arg) {
     exitcode_t code;
@@ -21,6 +21,10 @@
         printf("interrupt start? Y/n :");
         c = fgetc(stdin);
         if ( c == 'n' || c == 'N' ) return 0;
-        else { printf("ok\n"); }
+        else {
+            emul_repl_start();
+            emul_repl_end();
+        }
     }
+    return 0;
 }
diff --git a/emul_inst_decipher.c b/emul_inst_decipher.c
index e2931fe..fe0d02a 100644
--- a/emul_inst_decipher.c
+++ b/emul_inst_decipher.c
@@ -69,19 +69,30 @@
 };
 
 
-#define PSEUDO_COUNT 11
+#define PSEUDO_COUNT 22
 emul_pseudo_t pseudo_dict[REG_COUNT] = {
     { DUMP    , ":DUMP"    },
+    { DUMP    , ":dump"    },
     { MEMCAT  , ":MEMCAT"  },
+    { MEMCAT  , ":memcat"  },
     { MEMCATW , ":MEMCATW" },
+    { MEMCATW , ":memcatw" },
     { REGCAT  , ":REGCAT"  },
+    { REGCAT  , ":regcat"  },
     { LABEL   , ":LABEL"   },
+    { LABEL   , ":label"   },
     { RUN     , ":RUN"     },
+    { RUN     , ":run"     },
     { STEP    , ":STEP"    },
+    { STEP    , ":step"    },
     { INPUT   , ":INPUT"   },
+    { INPUT   , ":input"   },
     { OUTPUT  , ":OUTPUT"  },
+    { OUTPUT  , ":output"  },
     { CRLF    , ":CRLF"    },
-    { EXIT    , ":EXIT"    }
+    { CRLF    , ":crlf"    },
+    { EXIT    , ":EXIT"    },
+    { EXIT    , ":exit"    }
 };
 
 
@@ -90,6 +101,8 @@
 static int program_line_max;        // *_load()を呼び出したときにのみ更新
 
 void emul_inst_dec_init() {
+    program_line_max = 0;
+    program_line_current = 0;
 }
 
 void emul_inst_dec_set_pc(int pc) {
@@ -119,13 +132,13 @@
 int emul_inst_dec_load(const char *filename) {
     FILE *fp;
     int line;
-    emul_out_std_debug("Now opening file $s...\n", filename);
+    emul_out_std_debug("Now opening file %s...\n", filename);
     if ((fp = fopen(filename, "r")) == NULL) {
         emul_out_std_err("%s is can not open\n", filename);
         return 0;
     }
 
-    emul_out_std_debug("Now loading file $s...\n", filename);
+    emul_out_std_debug("Now loading file %s...\n", filename);
     program_line_current = 0;
     line = 0;
     while ( fgets(program[line], LOAD_LINE_WIDTH_MAX, fp) != NULL ) {
@@ -139,12 +152,30 @@
     return 1;
 }
 
+int emul_inst_dec_loadline(const char *line) {
+    int i;
+    emul_out_std_debug("Now loading line %s...\n", line);
+    // 読み込み
+    strcpy(program[program_line_max], line);
+    // 読み込んだ場所へPCをセット
+    emul_reg_set(Spc, program_line_max);
+    // 最大値をインクリメント
+    program_line_max++;
+    // デバック用
+    for (i = 0; i < program_line_max; i++) {
+        emul_out_std_debug("%s\n", program[i]);
+    }
+    emul_out_std_debug("Now program line max = %d\n", program_line_max);
+    return 1;
+}
+
 int emul_inst_dec_get_token(char *token) {
     static char line[LOAD_LINE_WIDTH_MAX] = {0};
     static char *current = line;
     int fShift;
     int i;
 
+    emul_out_std_debug("get_token: start\n");
     do {
         fShift = 0;
         // 読み込んだ行の先頭が印字可能文字になるようにシフト
@@ -160,6 +191,9 @@
             current = line;
             // currentにセット
             strcpy(current, program[program_line_current]);
+            emul_out_std_debug("get_token: program_line_current %d\n", program_line_current);
+            emul_out_std_debug("get_token: program_line_current \"%s\"\n", program[program_line_current]);
+            emul_out_std_debug("get_token: current = \"%s\"\n", current);
             // 読み込みを行った場合はシフトフラグをセット
             fShift = 1;
         }
@@ -167,7 +201,7 @@
 
     // 次のスペース(もしくは'\0')が現れるまで読み込み
     i = 0;
-    while ( !isspace(*current) ) {
+    while ( !isspace(*current) && *current != '\0' ) {
         token[i] = *current;
         i++, current++;	// インクリメントに注意する
     }
diff --git a/emul_inst_decipher.h b/emul_inst_decipher.h
index 94ecdec..73c7273 100644
--- a/emul_inst_decipher.h
+++ b/emul_inst_decipher.h
@@ -28,6 +28,8 @@
 
 int emul_inst_dec_load(const char *filename);
 
+int emul_inst_dec_loadline(const char *line);
+
 void emul_inst_dec_set_pc(int pc);
 
 void emul_inst_dec_update_pc();
diff --git a/emul_inst_exec.c b/emul_inst_exec.c
index f1c437e..79312bf 100644
--- a/emul_inst_exec.c
+++ b/emul_inst_exec.c
@@ -45,6 +45,7 @@
 void emul_inst_exec_init() {
     emul_std_init();
     emul_reg_init();
+    emul_inst_dec_init();
 }
 void emul_inst_exec_end() {
     emul_std_end();
@@ -58,6 +59,13 @@
     return 1;
 }
 
+int emul_inst_exec_loadline(char *line) {
+    // ロードできないなら終了
+    if ( emul_inst_dec_loadline(line) == 0 ) return 0;
+    // できたらラベルも読み込み
+    //emul_inst_exec_load_label();
+    return 1;
+}
 
 /* オペコード解読処理群 - START */
 void emul_inst_exec_add(int r0, int r1, int r2) {
@@ -181,9 +189,13 @@
  *   LAST_CMD [OPTION] */
 void emul_inst_exec_pseudo_dump(const char *option) {
     if ( strcmp(option, "NONE") == 0 ) emul_std_debug(0);
+    if ( strcmp(option, "none") == 0 ) emul_std_debug(0);
     if ( strcmp(option, "DEBUG0") == 0 ) emul_std_debug(0);
+    if ( strcmp(option, "debug0") == 0 ) emul_std_debug(0);
     if ( strcmp(option, "DEBUG1") == 0 ) emul_std_debug(1);
+    if ( strcmp(option, "debug1") == 0 ) emul_std_debug(1);
     if ( strcmp(option, "DEBUG2") == 0 ) emul_std_debug(2);
+    if ( strcmp(option, "debug2") == 0 ) emul_std_debug(2);
     emul_out_std_debug("PseudoExec: DUMP option[%s];\n", option);
 }
 
@@ -350,7 +362,10 @@
     int ps_id;
     int pc;
 
-    emul_out_std_debug(">>START STEP!>>\n");
+    int temp_op[3];
+    char label[LABEL_NAME_LENGTH_MAX];
+
+    emul_out_std_debug(">>>Start step\n");
 
     // トークンを取得
     if ( emul_inst_dec_get_token(token) == 0 ) {
@@ -376,8 +391,6 @@
         }
     }
 
-    int temp_op[3];
-    char label[LABEL_NAME_LENGTH_MAX];
     // オペコード実行
     switch (op_id) {
 	case ADD :
@@ -485,6 +498,7 @@
 exitcode_t emul_inst_exec_run() {
     // step関数を終わるまで呼び出せばよい
     int exit_code;
+    emul_out_std_debug(">>>Start run\n");
     while ( (exit_code = emul_inst_exec_step()) == Success ) {
         if (RunMode == Step) {
             emul_out_std("...Wait for step, please input key enter.\n");
@@ -494,6 +508,7 @@
             return Success;
         }
     }
+    emul_out_std_debug("<<<Stop run\n");
     return exit_code;
 }
 
diff --git a/emul_inst_exec.h b/emul_inst_exec.h
index 16e66f9..7debf7e 100644
--- a/emul_inst_exec.h
+++ b/emul_inst_exec.h
@@ -29,6 +29,7 @@
 void emul_inst_exec_end();
 
 int emul_inst_exec_load(char *filename);
+int emul_inst_exec_loadline(char *line);
 
 /* Execute Step
  * RETURN:
diff --git a/emul_io_std.c b/emul_io_std.c
index dca43ab..858f688 100644
--- a/emul_io_std.c
+++ b/emul_io_std.c
@@ -1,5 +1,4 @@
 #include "emul_io_std.h"
-#include <ncurses.h>
 
 static int debug_level = 0;
 
@@ -9,6 +8,8 @@
 
 static WINDOW *win;
 
+WINDOW* emul_getWin() { return win; }
+
 void emul_std_init() {
     win = initscr();
     scrollok(win, TRUE);
diff --git a/emul_io_std.h b/emul_io_std.h
index 9b1ec34..5d0e348 100644
--- a/emul_io_std.h
+++ b/emul_io_std.h
@@ -3,9 +3,12 @@
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <ncurses.h>
 
 void emul_std_debug(int level);
 
+WINDOW* emul_getWin();
+
 void emul_std_init();
 void emul_std_end();
 
diff --git a/emul_repl.c b/emul_repl.c
new file mode 100644
index 0000000..017b6a2
--- /dev/null
+++ b/emul_repl.c
@@ -0,0 +1,47 @@
+#include "emul_repl.h"
+#include "emul_inst_exec.h"
+#include "emul_io_std.h"
+#include <stdio.h>
+#include <string.h>
+#include <ncurses.h>
+
+#define READ_LINE_MAX 64
+
+static WINDOW *win;
+
+void emul_repl_readline(char input[READ_LINE_MAX]) {
+    printw(">>");
+    getnstr(input, READ_LINE_MAX);
+    //strtok(input, "\n\0");
+}
+
+void emul_repl_printline();
+
+void emul_repl_init() {
+    emul_inst_exec_init();
+}
+
+void emul_repl_start() {
+    char input[READ_LINE_MAX];
+    exitcode_t state;
+
+    emul_repl_init();
+    // ウィンドウポインタ取得
+    win = emul_getWin();
+
+    while (1) {
+        emul_repl_readline(input);
+        emul_inst_exec_loadline(input);
+        state = emul_inst_exec_run();
+        if (state == Failed) {
+            printw("Abend exit\n");
+        } else if (state == Success) {
+            printw("Sucsess\n");
+            break;
+        }
+    }
+}
+
+void emul_repl_end() {
+    emul_inst_exec_end();
+}
diff --git a/emul_repl.h b/emul_repl.h
new file mode 100644
index 0000000..004dd10
--- /dev/null
+++ b/emul_repl.h
@@ -0,0 +1,10 @@
+#ifndef ENUL_REPL__
+#define ENUL_REPL__
+
+void emul_repl_init();
+
+void emul_repl_start();
+
+void emul_repl_end();
+
+#endif