diff --git a/.gitignore b/.gitignore
index 422c5a3..5b7d156 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 target
+nes
 cmake-build-debug
\ No newline at end of file
diff --git a/app/src/main/java/cn/navclub/nes4j/app/view/GameHall.java b/app/src/main/java/cn/navclub/nes4j/app/view/GameHall.java
index 9c070b2..358f73b 100644
--- a/app/src/main/java/cn/navclub/nes4j/app/view/GameHall.java
+++ b/app/src/main/java/cn/navclub/nes4j/app/view/GameHall.java
@@ -108,7 +108,10 @@ protected List<File> call() {
                 if (!file.exists() || file.listFiles() == null) {
                     return List.of();
                 }
-                return Arrays.stream(file.listFiles()).filter(File::isFile).toList();
+                return Arrays
+                        .stream(file.listFiles()).filter(File::isFile)
+                        .filter(it -> it.getName().endsWith(".nes"))
+                        .toList();
             }
         };
     }
diff --git a/app/src/main/java/cn/navclub/nes4j/app/view/GameWorld.java b/app/src/main/java/cn/navclub/nes4j/app/view/GameWorld.java
index d99d905..4ee1fef 100644
--- a/app/src/main/java/cn/navclub/nes4j/app/view/GameWorld.java
+++ b/app/src/main/java/cn/navclub/nes4j/app/view/GameWorld.java
@@ -155,6 +155,14 @@ public void handle() {
         });
     }
 
+    @FXML
+    public void reset() {
+        if (this.instance == null) {
+            return;
+        }
+        this.instance.reset();
+    }
+
 
     private void gameLoopCallback(Frame frame, JoyPad joyPad, JoyPad joyPad1) {
         var w = Frame.width;
diff --git a/app/src/main/resources/cn/navclub/nes4j/app/assets/fxml/GameWorld.fxml b/app/src/main/resources/cn/navclub/nes4j/app/assets/fxml/GameWorld.fxml
index c1beaea..4395146 100644
--- a/app/src/main/resources/cn/navclub/nes4j/app/assets/fxml/GameWorld.fxml
+++ b/app/src/main/resources/cn/navclub/nes4j/app/assets/fxml/GameWorld.fxml
@@ -10,7 +10,7 @@
         <MenuBar fx:id="menuBar">
             <Menu text="%nes4j.view">
                 <MenuItem text="%nes4j.pplay"/>
-                <MenuItem text="%nes4j.reset"/>
+                <MenuItem text="%nes4j.reset" onAction="#reset"/>
                 <MenuItem text="%nes4j.palette"/>
             </Menu>
             <Menu text="%nes4j.options">
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/NES.java b/bin/src/main/java/cn/navclub/nes4j/bin/NES.java
index 1bb3037..8fc1290 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/NES.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/NES.java
@@ -81,15 +81,10 @@ public void execute() {
             } else {
                 //fire ppu or apu interrupt
                 cycles += this.cpu.interrupt(this.getInterrupt());
-                var programCounter = this.cpu.getPc();
                 if (this.debugger != null && this.debugger.hack(this)) {
                     //lock current program process
                     LockSupport.park();
                 }
-                //Check program counter whether in legal memory area
-                if (programCounter < 0x8000 || programCounter >= 0x10000) {
-                    throw new RuntimeException("Text memory area except in 0x8000 to 0xffff current 0x" + Integer.toHexString(programCounter));
-                }
                 cycles += this.cpu.next();
                 this.instructions++;
             }
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/config/CPUInterrupt.java b/bin/src/main/java/cn/navclub/nes4j/bin/config/CPUInterrupt.java
index 3319194..4c1648a 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/config/CPUInterrupt.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/config/CPUInterrupt.java
@@ -8,11 +8,11 @@
 @Getter
 public enum CPUInterrupt {
     //PPU
-    NMI(2, 0xfffa),
+    NMI(7, 0xfffa),
     //APU
-    IRQ(2, 0xfffe),
+    IRQ(7, 0xfffe),
     //CPU
-    BRK(1, 0xfffe);
+    BRK(7, 0xfffe);
 
     private final int cycle;
     private final int vector;
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/config/ICPUStatus.java b/bin/src/main/java/cn/navclub/nes4j/bin/config/ICPUStatus.java
index 8816674..0ea20f6 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/config/ICPUStatus.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/config/ICPUStatus.java
@@ -2,19 +2,19 @@
 
 public enum ICPUStatus {
     //Carry flag
-    CF,
+    CARRY,
     //Zero flag
-    ZF,
+    ZERO,
     //Interrupt disable
-    ID,
+    INTERRUPT_DISABLE,
     //Decimal mode
-    DM,
+    DECIMAL_MODE,
     //Break command
-    BK,
+    BREAK_COMMAND,
     //Empty
-    BK2,
+    EMPTY,
     //Overflow flag
-    OF,
+    OVERFLOW,
     //Negative flag
-    NF
+    NEGATIVE
 }
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/config/Instruction.java b/bin/src/main/java/cn/navclub/nes4j/bin/config/Instruction.java
index aaa982b..581a96e 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/config/Instruction.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/config/Instruction.java
@@ -9,7 +9,7 @@
 
 
 /**
- * 6502 指令集
+ * 6502 instructions
  *
  * @author <a href="https://github.com/GZYangKui">GZYangKui</a>
  */
@@ -22,8 +22,8 @@ public enum Instruction {
             InstructionWrap.create(int8(0x69), 2, 2, Immediate),
             InstructionWrap.create(int8(0x65), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x75), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0x6D), 3, 4, Absolute),
-            InstructionWrap.create(int8(0x7D), 3, 4, Absolute_X),
+            InstructionWrap.create(int8(0x6d), 3, 4, Absolute),
+            InstructionWrap.create(int8(0x7d), 3, 4, Absolute_X),
             InstructionWrap.create(int8(0x79), 3, 4, Absolute_Y),
             InstructionWrap.create(int8(0x61), 2, 6, Indirect_X),
             InstructionWrap.create(int8(0x71), 2, 5, Indirect_Y),
@@ -34,14 +34,14 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#LDA">相关文档</a>
      */
     LDA(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xA9), 2, 2, Immediate),
-            InstructionWrap.create(int8(0xA5), 2, 3, ZeroPage),
-            InstructionWrap.create(int8(0xB5), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0xAD), 3, 4, Absolute),
-            InstructionWrap.create(int8(0xBD), 3, 4, Absolute_X),
-            InstructionWrap.create(int8(0xB9), 3, 4, Absolute_Y),
-            InstructionWrap.create(int8(0xA1), 2, 6, Indirect_X),
-            InstructionWrap.create(int8(0xB1), 2, 5, Indirect_Y),
+            InstructionWrap.create(int8(0xa9), 2, 2, Immediate),
+            InstructionWrap.create(int8(0xa5), 2, 3, ZeroPage),
+            InstructionWrap.create(int8(0xb5), 2, 4, ZeroPage_X),
+            InstructionWrap.create(int8(0xad), 3, 4, Absolute),
+            InstructionWrap.create(int8(0xbd), 3, 4, Absolute_X),
+            InstructionWrap.create(int8(0xb9), 3, 4, Absolute_Y),
+            InstructionWrap.create(int8(0xa1), 2, 6, Indirect_X),
+            InstructionWrap.create(int8(0xb1), 2, 5, Indirect_Y),
     }),
     /**
      * 将累加器中的值写入内存中
@@ -50,8 +50,8 @@ public enum Instruction {
     STA(new InstructionWrap[]{
             InstructionWrap.create(int8(0x85), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x95), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0x8D), 3, 4, Absolute),
-            InstructionWrap.create(int8(0x9D), 3, 5, Absolute_X),
+            InstructionWrap.create(int8(0x8d), 3, 4, Absolute),
+            InstructionWrap.create(int8(0x9d), 3, 5, Absolute_X),
             InstructionWrap.create(int8(0x99), 3, 5, Absolute_Y),
             InstructionWrap.create(int8(0x81), 2, 6, Indirect_X),
             InstructionWrap.create(int8(0x91), 2, 6, Indirect_Y)
@@ -63,7 +63,7 @@ public enum Instruction {
     STX(new InstructionWrap[]{
             InstructionWrap.create(int8(0x86), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x96), 2, 4, ZeroPage_Y),
-            InstructionWrap.create(int8(0x8E), 3, 4, Absolute),
+            InstructionWrap.create(int8(0x8e), 3, 4, Absolute),
     }),
 
     /**
@@ -74,7 +74,7 @@ public enum Instruction {
     STY(new InstructionWrap[]{
             InstructionWrap.create(int8(0x84), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x94), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0X8C), 3, 4, Absolute)
+            InstructionWrap.create(int8(0X8c), 3, 4, Absolute)
     }),
 
     /**
@@ -86,8 +86,8 @@ public enum Instruction {
             InstructionWrap.create(int8(0x29), 2, 2, Immediate),
             InstructionWrap.create(int8(0x25), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x35), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0x2D), 3, 4, Absolute),
-            InstructionWrap.create(int8(0x3D), 3, 4, Absolute_X),
+            InstructionWrap.create(int8(0x2d), 3, 4, Absolute),
+            InstructionWrap.create(int8(0x3d), 3, 4, Absolute_X),
             InstructionWrap.create(int8(0x39), 3, 4, Absolute_Y),
             InstructionWrap.create(int8(0x21), 2, 6, Indirect_X),
             InstructionWrap.create(int8(0x31), 2, 5, Indirect_Y),
@@ -100,8 +100,8 @@ public enum Instruction {
             InstructionWrap.create(int8(0x09), 2, 2, Immediate),
             InstructionWrap.create(int8(0x05), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x15), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0x0D), 3, 4, Absolute),
-            InstructionWrap.create(int8(0x1D), 3, 4, Absolute_X),
+            InstructionWrap.create(int8(0x0d), 3, 4, Absolute),
+            InstructionWrap.create(int8(0x1d), 3, 4, Absolute_X),
             InstructionWrap.create(int8(0x19), 3, 4, Absolute_Y),
             InstructionWrap.create(int8(0x01), 2, 6, Indirect_X),
             InstructionWrap.create(int8(0x11), 2, 5, Indirect_Y)
@@ -115,8 +115,8 @@ public enum Instruction {
             InstructionWrap.create(int8(0x49), 2, 2, Immediate),
             InstructionWrap.create(int8(0x45), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0x55), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0x4D), 3, 4, Absolute),
-            InstructionWrap.create(int8(0x5D), 3, 4, Absolute_X),
+            InstructionWrap.create(int8(0x4d), 3, 4, Absolute),
+            InstructionWrap.create(int8(0x5d), 3, 4, Absolute_X),
             InstructionWrap.create(int8(0x59), 3, 4, Absolute_Y),
             InstructionWrap.create(int8(0x41), 2, 6, Indirect_X),
             InstructionWrap.create(int8(0x51), 2, 5, Indirect_Y)
@@ -135,7 +135,7 @@ public enum Instruction {
      *
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#PHP">相关文档</a>
      */
-    PHP(int8(0X08), 1, 3),
+    PHP(int8(0x08), 1, 3),
 
     /**
      * 从系统栈中获取值并更新累加寄存器
@@ -156,22 +156,22 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#ASL">相关文档</a>
      */
     ASL(new InstructionWrap[]{
-            InstructionWrap.create(int8(0x0A), 1, 2, Accumulator),
+            InstructionWrap.create(int8(0x0a), 1, 2, Accumulator),
             InstructionWrap.create(int8(0x06), 2, 5, ZeroPage),
             InstructionWrap.create(int8(0x16), 2, 6, ZeroPage_X),
-            InstructionWrap.create(int8(0x0E), 3, 6, Absolute),
-            InstructionWrap.create(int8(0x1E), 3, 7, Absolute_X)
+            InstructionWrap.create(int8(0x0e), 3, 6, Absolute),
+            InstructionWrap.create(int8(0x1e), 3, 7, Absolute_X)
     }),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#LSR">相关文档</a>
      */
     LSR(new InstructionWrap[]{
-            InstructionWrap.create(int8(0x4A), 1, 2, Accumulator),
+            InstructionWrap.create(int8(0x4a), 1, 2, Accumulator),
             InstructionWrap.create(int8(0x46), 2, 5, ZeroPage),
             InstructionWrap.create(int8(0x56), 2, 6, ZeroPage_X),
-            InstructionWrap.create(int8(0x4E), 3, 6, Absolute),
-            InstructionWrap.create(int8(0x5E), 3, 7, Absolute_X)
+            InstructionWrap.create(int8(0x4e), 3, 6, Absolute),
+            InstructionWrap.create(int8(0x5e), 3, 7, Absolute_X)
     }),
 
     /**
@@ -179,14 +179,14 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#CMP">相关文档</a>
      */
     CMP(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xC9), 2, 2, Immediate),
-            InstructionWrap.create(int8(0xC5), 2, 3, ZeroPage),
-            InstructionWrap.create(int8(0xD5), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0xCD), 3, 4, Absolute),
-            InstructionWrap.create(int8(0xDD), 3, 4, Absolute_X),
-            InstructionWrap.create(int8(0xD9), 3, 4, Absolute_Y),
-            InstructionWrap.create(int8(0xC1), 2, 6, Indirect_X),
-            InstructionWrap.create(int8(0xD1), 2, 5, Indirect_Y)
+            InstructionWrap.create(int8(0xc9), 2, 2, Immediate),
+            InstructionWrap.create(int8(0xc5), 2, 3, ZeroPage),
+            InstructionWrap.create(int8(0xd5), 2, 4, ZeroPage_X),
+            InstructionWrap.create(int8(0xcd), 3, 4, Absolute),
+            InstructionWrap.create(int8(0xdd), 3, 4, Absolute_X),
+            InstructionWrap.create(int8(0xd9), 3, 4, Absolute_Y),
+            InstructionWrap.create(int8(0xc1), 2, 6, Indirect_X),
+            InstructionWrap.create(int8(0xd1), 2, 5, Indirect_Y)
     }),
 
     /**
@@ -195,9 +195,9 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#CMX">相关文档</a>
      */
     CPX(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xE0), 2, 2, Immediate),
-            InstructionWrap.create(int8(0xE4), 2, 3, ZeroPage),
-            InstructionWrap.create(int8(0xEC), 2, 4, Absolute),
+            InstructionWrap.create(int8(0xe0), 2, 2, Immediate),
+            InstructionWrap.create(int8(0xe4), 2, 3, ZeroPage),
+            InstructionWrap.create(int8(0xec), 3, 4, Absolute),
     }),
 
     /**
@@ -206,9 +206,9 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#CMY">相关文档</a>
      */
     CPY(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xC0), 2, 2, Immediate),
-            InstructionWrap.create(int8(0xC4), 2, 3, ZeroPage),
-            InstructionWrap.create(int8(0xCC), 2, 4, Absolute),
+            InstructionWrap.create(int8(0xc0), 2, 2, Immediate),
+            InstructionWrap.create(int8(0xc4), 2, 3, ZeroPage),
+            InstructionWrap.create(int8(0xcc), 3, 4, Absolute),
     }
     ),
 
@@ -216,11 +216,11 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#LDX">相关文档</a>
      */
     LDX(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xA2), 2, 2, Immediate),
-            InstructionWrap.create(int8(0xA6), 2, 3, ZeroPage),
-            InstructionWrap.create(int8(0xB6), 2, 4, ZeroPage_Y),
-            InstructionWrap.create(int8(0xAE), 3, 4, Absolute),
-            InstructionWrap.create(int8(0xBE), 3, 4, Absolute_Y)
+            InstructionWrap.create(int8(0xa2), 2, 2, Immediate),
+            InstructionWrap.create(int8(0xa6), 2, 3, ZeroPage),
+            InstructionWrap.create(int8(0xb6), 2, 4, ZeroPage_Y),
+            InstructionWrap.create(int8(0xae), 3, 4, Absolute),
+            InstructionWrap.create(int8(0xbe), 3, 4, Absolute_Y)
     }
     ),
 
@@ -228,11 +228,11 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#LDY">相关文档</a>
      */
     LDY(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xA0), 2, 2, Immediate),
-            InstructionWrap.create(int8(0xA4), 2, 3, ZeroPage),
+            InstructionWrap.create(int8(0xa0), 2, 2, Immediate),
+            InstructionWrap.create(int8(0xa4), 2, 3, ZeroPage),
             InstructionWrap.create(int8(0xb4), 2, 4, ZeroPage_X),
-            InstructionWrap.create(int8(0xAC), 3, 4, Absolute),
-            InstructionWrap.create(int8(0xBC), 3, 4, Absolute_X)
+            InstructionWrap.create(int8(0xac), 3, 4, Absolute),
+            InstructionWrap.create(int8(0xbc), 3, 4, Absolute_X)
     }
     ),
 
@@ -240,10 +240,10 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#INC">相关文档</a>
      */
     INC(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xE6), 2, 5, ZeroPage),
-            InstructionWrap.create(int8(0xF6), 2, 6, ZeroPage_X),
-            InstructionWrap.create(int8(0xEE), 3, 6, Absolute),
-            InstructionWrap.create(int8(0xFE), 3, 7, Absolute_X),
+            InstructionWrap.create(int8(0xe6), 2, 5, ZeroPage),
+            InstructionWrap.create(int8(0xf6), 2, 6, ZeroPage_X),
+            InstructionWrap.create(int8(0xee), 3, 6, Absolute),
+            InstructionWrap.create(int8(0xfe), 3, 7, Absolute_X),
     }
     ),
 
@@ -259,17 +259,17 @@ public enum Instruction {
      */
     BIT(new InstructionWrap[]{
             InstructionWrap.create(int8(0x24), 2, 3, ZeroPage),
-            InstructionWrap.create(int8(0X2C), 3, 4, Absolute)
+            InstructionWrap.create(int8(0X2c), 3, 4, Absolute)
     }),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#DCE">相关文档</a>
      */
     DEC(new InstructionWrap[]{
-            InstructionWrap.create(int8(0xC6), 2, 5, ZeroPage),
-            InstructionWrap.create(int8(0xD6), 2, 6, ZeroPage_X),
-            InstructionWrap.create(int8(0xCE), 3, 6, Absolute),
-            InstructionWrap.create(int8(0xDE), 3, 7, Absolute_X)
+            InstructionWrap.create(int8(0xc6), 2, 5, ZeroPage),
+            InstructionWrap.create(int8(0xd6), 2, 6, ZeroPage_X),
+            InstructionWrap.create(int8(0xce), 3, 6, Absolute),
+            InstructionWrap.create(int8(0xde), 3, 7, Absolute_X)
     }),
 
     /**
@@ -284,22 +284,22 @@ public enum Instruction {
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#ROR">相关文档</a>
      */
     ROR(new InstructionWrap[]{
-            InstructionWrap.create(int8(0x6A), 1, 2, Accumulator),
+            InstructionWrap.create(int8(0x6a), 1, 2, Accumulator),
             InstructionWrap.create(int8(0x66), 2, 5, ZeroPage),
             InstructionWrap.create(int8(0x76), 2, 6, ZeroPage_X),
-            InstructionWrap.create(int8(0x6E), 3, 6, Absolute),
-            InstructionWrap.create(int8(0x7E), 3, 7, Absolute_X),
+            InstructionWrap.create(int8(0x6e), 3, 6, Absolute),
+            InstructionWrap.create(int8(0x7e), 3, 7, Absolute_X),
     }),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#ROL">相关文档</a>
      */
     ROL(new InstructionWrap[]{
-            InstructionWrap.create(int8(0x2A), 1, 2, Accumulator),
+            InstructionWrap.create(int8(0x2a), 1, 2, Accumulator),
             InstructionWrap.create(int8(0x26), 2, 5, ZeroPage),
             InstructionWrap.create(int8(0x36), 2, 6, ZeroPage_X),
-            InstructionWrap.create(int8(0x2E), 3, 6, Absolute),
-            InstructionWrap.create(int8(0x3E), 3, 7, Absolute_X),
+            InstructionWrap.create(int8(0x2e), 3, 6, Absolute),
+            InstructionWrap.create(int8(0x3e), 3, 7, Absolute_X),
     }),
 
     /**
@@ -315,13 +315,13 @@ public enum Instruction {
             InstructionWrap.create(int8(0xe1), 2, 6, Indirect_X),
             InstructionWrap.create(int8(0xf1), 2, 5, Indirect_Y),
             //un-office sbc+NOP
-            InstructionWrap.create((byte) 0xeb, 2, 2, Immediate)
+            InstructionWrap.create(int8(0xeb), 2, 2, Immediate)
     }),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#DCX">相关文档</a>
      */
-    DEX(int8(0xCA), 1, 2),
+    DEX(int8(0xca), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#DCY">相关文档</a>
@@ -331,7 +331,7 @@ public enum Instruction {
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#RTS">相关文档</a>
      */
-    RTS(int8(0X60), 1, 6),
+    RTS(int8(0x60), 1, 6),
 
     /**
      * 清除进位标识
@@ -343,7 +343,7 @@ public enum Instruction {
      * 清除数字标识
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#CLD">相关文档</a>
      */
-    CLD(int8(0xD8), 1, 2),
+    CLD(int8(0xd8), 1, 2),
 
     /**
      * 清除中断标识
@@ -357,20 +357,20 @@ public enum Instruction {
      *
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#CLV">相关文档</a>
      */
-    CLV(int8(0xB8), 1, 2),
+    CLV(int8(0xb8), 1, 2),
 
     /**
      * 自增X寄存器
      *
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#INX">相关文档</a>
      */
-    INX(int8(0XE8), 1, 2),
+    INX(int8(0xe8), 1, 2),
 
     /**
      * 自增Y寄存器
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#INY">相关文档</a>
      */
-    INY(int8(0xC8), 1, 2),
+    INY(int8(0xc8), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#NOP">相关文档</a>
@@ -385,7 +385,7 @@ public enum Instruction {
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#BCS">相关文档</a>
      */
-    BCS(int8(0xB0), 2, 2, Relative),
+    BCS(int8(0xb0), 2, 2, Relative),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#BEQ">相关文档</a>
@@ -395,12 +395,12 @@ public enum Instruction {
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#BNE">相关文档</a>
      */
-    BNE(int8(0XD0), 2, 2, Relative),
+    BNE(int8(0xd0), 2, 2, Relative),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#BPL">相关文档</a>
      */
-    BPL(int8(0X10), 2, 2, Relative),
+    BPL(int8(0x10), 2, 2, Relative),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#BMI">相关文档</a>
@@ -430,7 +430,7 @@ public enum Instruction {
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#SED">相关文档</a>
      */
-    SED(int8(0xF8), 1, 2),
+    SED(int8(0xf8), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#SEI">相关文档</a>
@@ -440,27 +440,27 @@ public enum Instruction {
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#TAX">相关文档</a>
      */
-    TAX(int8(0xAA), 1, 2),
+    TAX(int8(0xaa), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#TAY">相关文档</a>
      */
-    TAY(int8(0xA8), 1, 2),
+    TAY(int8(0xa8), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#TSX">相关文档</a>
      */
-    TSX(int8(0xBA), 1, 2),
+    TSX(int8(0xba), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#TXA">相关文档</a>
      */
-    TXA(int8(0x8A), 1, 2),
+    TXA(int8(0x8a), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#TXS">相关文档</a>
      */
-    TXS(int8(0x9A), 1, 2),
+    TXS(int8(0x9a), 1, 2),
 
     /**
      * <a href="https://www.nesdev.org/obelisk-6502-guide/reference.html#TYA">相关文档</a>
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/core/Bus.java b/bin/src/main/java/cn/navclub/nes4j/bin/core/Bus.java
index 4625c96..d13f204 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/core/Bus.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/core/Bus.java
@@ -125,7 +125,6 @@ else if (address >= RPG_ROM && address <= RPG_ROM_END) {
     public void write(int address, byte b) {
         address = this.map(address);
 
-
         if (address >= 0 && address <= RAM_MIRROR_END) {
             this.ram[address] = b;
         }
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/core/CPU.java b/bin/src/main/java/cn/navclub/nes4j/bin/core/CPU.java
index 993c38c..6c4efad 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/core/CPU.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/core/CPU.java
@@ -3,6 +3,9 @@
 import cn.navclub.nes4j.bin.NES;
 import cn.navclub.nes4j.bin.config.*;
 import cn.navclub.nes4j.bin.core.register.CPUStatus;
+import cn.navclub.nes4j.bin.debug.OpenCodeFormat;
+import cn.navclub.nes4j.bin.ppu.PPU;
+import cn.navclub.nes4j.bin.util.BinUtil;
 import lombok.Data;
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
@@ -61,7 +64,7 @@ public void reset() {
         this.ra = 0;
         this.sp = STACK_RESET;
         this.pc = this.bus.readInt(PC_RESET);
-        this.status.setBits(int8(0b100100));
+        this.status.setBits(int8(0b000100));
     }
 
 
@@ -111,8 +114,8 @@ private void raUpdate(int value) {
      */
     private void NZUpdate(int result) {
         var b = (result & 0xff);
-        this.status.update(ICPUStatus.ZF, (b == 0));
-        this.status.update(ICPUStatus.NF, (b >> 7) == 1);
+        this.status.update(ICPUStatus.ZERO, (b == 0));
+        this.status.update(ICPUStatus.NEGATIVE, (b >> 7) == 1);
     }
 
     /**
@@ -137,7 +140,7 @@ private void lsr(AddressMode mode) {
                 ? this.ra
                 : this.bus.ReadU8(addr = this.modeProvider.getAbsAddr(mode));
 
-        this.status.update(ICPUStatus.CF, (operand & 1) == 1);
+        this.status.update(ICPUStatus.CARRY, (operand & 1) == 1);
         operand >>= 1;
         if (mode == AddressMode.Accumulator) {
             this.raUpdate(operand);
@@ -160,8 +163,8 @@ private void rol(AddressMode mode) {
         }
         bit = value >> 7;
         value <<= 1;
-        value |= this.status.get(ICPUStatus.CF);
-        this.status.update(ICPUStatus.CF, bit == 1);
+        value |= this.status.get(ICPUStatus.CARRY);
+        this.status.update(ICPUStatus.CARRY, bit == 1);
         if (updateRA) {
             this.raUpdate(value);
         } else {
@@ -180,8 +183,8 @@ private void ror(AddressMode mode) {
         }
         var oBit = value & 1;
         value >>= 1;
-        value |= (this.status.get(ICPUStatus.CF) << 7);
-        this.status.update(ICPUStatus.CF, oBit == 1);
+        value |= (this.status.get(ICPUStatus.CARRY) << 7);
+        this.status.update(ICPUStatus.CARRY, oBit == 1);
         if (rora) {
             this.raUpdate(value);
         } else {
@@ -201,7 +204,7 @@ private void asl(InstructionWrap instruction6502) {
             b = this.bus.ReadU8(address);
         }
         //更新进位标识
-        this.status.update(ICPUStatus.CF, (b >> 7) == 1);
+        this.status.update(ICPUStatus.CARRY, (b >> 7) == 1);
         //左移1位
         b = b << 1;
         if (a) {
@@ -218,7 +221,7 @@ private void push(InstructionWrap instruction6502) {
             this.push((byte) this.ra);
         } else {
             var flags = this.status.copy();
-            flags.set(ICPUStatus.BK, ICPUStatus.BK2);
+            flags.set(ICPUStatus.BREAK_COMMAND, ICPUStatus.EMPTY);
             this.push(flags.getBits());
         }
     }
@@ -230,8 +233,8 @@ private void pull(InstructionWrap instruction6502) {
             this.raUpdate(value);
         } else {
             this.status.setBits(value);
-            this.status.set(ICPUStatus.BK2);
-            this.status.clear(ICPUStatus.BK);
+            this.status.set(ICPUStatus.EMPTY);
+            this.status.clear(ICPUStatus.BREAK_COMMAND);
         }
     }
 
@@ -248,7 +251,7 @@ private void cmp(InstructionWrap instruction6502) {
         var address = this.modeProvider.getAbsAddr(instruction6502.getAddressMode());
         var m = this.bus.ReadU8(address);
         //设置Carry Flag
-        this.status.update(ICPUStatus.CF, a >= m);
+        this.status.update(ICPUStatus.CARRY, a >= m);
         //更新cpu状态
         this.NZUpdate(u8sbc(a, m));
     }
@@ -276,10 +279,10 @@ private void adc(AddressMode mode, boolean sbc) {
             b = (byte) (-b - 1);
         }
         var value = b & 0xff;
-        var sum = this.ra + value + this.status.get(ICPUStatus.CF);
-        this.status.update(ICPUStatus.CF, sum > 0xff);
+        var sum = this.ra + value + this.status.get(ICPUStatus.CARRY);
+        this.status.update(ICPUStatus.CARRY, sum > 0xff);
         var result = sum & 0xff;
-        this.status.update(ICPUStatus.OF, (((b & 0xff ^ result) & (result ^ this.ra)) & 0x80) != 0);
+        this.status.update(ICPUStatus.OVERFLOW, (((b & 0xff ^ result) & (result ^ this.ra)) & 0x80) != 0);
         this.raUpdate(result);
     }
 
@@ -319,9 +322,9 @@ private void branch(boolean condition) {
     private void bit(InstructionWrap instruction6502) {
         var address = this.modeProvider.getAbsAddr(instruction6502.getAddressMode());
         var value = this.bus.ReadU8(address);
-        this.status.update(ICPUStatus.ZF, (this.ra & value) == 0);
-        this.status.update(ICPUStatus.NF, (value >> 7) == 1);
-        this.status.update(ICPUStatus.OF, (value >> 6) == 1);
+        this.status.update(ICPUStatus.ZERO, (this.ra & value) == 0);
+        this.status.update(ICPUStatus.NEGATIVE, (value >> 7) == 1);
+        this.status.update(ICPUStatus.OVERFLOW, (value >> 6) == 1);
     }
 
     private void dec(InstructionWrap instruction6502) {
@@ -346,7 +349,9 @@ private void dec(InstructionWrap instruction6502) {
     }
 
     public int interrupt(CPUInterrupt interrupt) {
-        if (interrupt == null || (interrupt != CPUInterrupt.NMI && this.status.contain(ICPUStatus.ID))) {
+        if (interrupt == null
+                //When set, all interrupts except the NMI are inhibited.
+                || (this.status.contain(ICPUStatus.INTERRUPT_DISABLE) && interrupt != CPUInterrupt.NMI)) {
             return 0;
         }
 
@@ -355,12 +360,16 @@ public int interrupt(CPUInterrupt interrupt) {
         var flag = this.status.copy();
 
         //https://www.nesdev.org/wiki/Status_flags#The_B_flag
-        flag.set(ICPUStatus.BK2);
-        flag.update(ICPUStatus.BK, interrupt == CPUInterrupt.BRK);
+        flag.set(ICPUStatus.EMPTY);
+        flag.update(ICPUStatus.BREAK_COMMAND, interrupt == CPUInterrupt.BRK);
 
         this.push(flag.getBits());
 
-        this.status.set(ICPUStatus.ID);
+        //Automatically set by the CPU when an IRQ is triggered, and restored to its previous state by RTI.
+        if (interrupt == CPUInterrupt.IRQ) {
+            this.status.set(ICPUStatus.INTERRUPT_DISABLE);
+        }
+
         this.pc = this.bus.readInt(interrupt.getVector());
 
         return interrupt.getCycle();
@@ -379,6 +388,7 @@ public int next() {
         var mode = instruction6502.getAddressMode();
         var instruction = instruction6502.getInstruction();
 
+//        System.out.println(Integer.toHexString(this.pc - 1) + ":" + instruction + "(" + BinUtil.toHexStr(instruction6502.getOpenCode()) + ")");
 
         if (instruction == Instruction.JMP) {
             this.pc = this.modeProvider.getAbsAddr(mode);
@@ -387,8 +397,8 @@ public int next() {
         if (instruction == Instruction.RTI) {
             this.status.setBits(this.pop());
 
-            this.status.set(ICPUStatus.BK2);
-            this.status.clear(ICPUStatus.BK);
+            this.status.set(ICPUStatus.EMPTY);
+            this.status.clear(ICPUStatus.BREAK_COMMAND);
 
             this.pc = this.popInt();
         }
@@ -447,6 +457,9 @@ public int next() {
         //刷新累加寄存器值到内存
         if (instruction == Instruction.STA) {
             var addr = this.modeProvider.getAbsAddr(mode);
+            if (this.pc - 1 == 0xe992) {
+                var str = "555";
+            }
             this.bus.WriteU8(addr, this.ra);
         }
 
@@ -462,21 +475,21 @@ public int next() {
 
         //清除进位标识
         if (instruction == Instruction.CLC) {
-            this.status.clear(ICPUStatus.CF);
+            this.status.clear(ICPUStatus.CARRY);
         }
 
         //清除Decimal model
         if (instruction == Instruction.CLD) {
-            this.status.clear(ICPUStatus.DM);
+            this.status.clear(ICPUStatus.DECIMAL_MODE);
         }
 
         //清除中断标识
         if (instruction == Instruction.CLI) {
-            this.status.clear(ICPUStatus.ID);
+            this.status.clear(ICPUStatus.INTERRUPT_DISABLE);
         }
 
         if (instruction == Instruction.CLV) {
-            this.status.clear(ICPUStatus.OF);
+            this.status.clear(ICPUStatus.OVERFLOW);
         }
 
         if (instruction == Instruction.CMP
@@ -502,21 +515,21 @@ public int next() {
 
         //By negative flag to jump
         if (instruction == Instruction.BPL || instruction == Instruction.BMI) {
-            this.branch((instruction == Instruction.BMI) == this.status.contain(ICPUStatus.NF));
+            this.branch((instruction == Instruction.BMI) == this.status.contain(ICPUStatus.NEGATIVE));
         }
 
         //By zero flag to jump
         if (instruction == Instruction.BEQ || instruction == Instruction.BNE) {
-            this.branch((instruction == Instruction.BEQ) == this.status.contain(ICPUStatus.ZF));
+            this.branch((instruction == Instruction.BEQ) == this.status.contain(ICPUStatus.ZERO));
         }
 
         //By overflow flag to jump
         if (instruction == Instruction.BVC || instruction == Instruction.BVS) {
-            this.branch((instruction == Instruction.BVS) == this.status.contain(ICPUStatus.OF));
+            this.branch((instruction == Instruction.BVS) == this.status.contain(ICPUStatus.OVERFLOW));
         }
 
         if (instruction == Instruction.BCS || instruction == Instruction.BCC) {
-            this.branch((instruction == Instruction.BCS) == this.status.contain(ICPUStatus.CF));
+            this.branch((instruction == Instruction.BCS) == this.status.contain(ICPUStatus.CARRY));
         }
 
         if (instruction == Instruction.DEC
@@ -527,15 +540,15 @@ public int next() {
 
 
         if (instruction == Instruction.SEC) {
-            this.status.set(ICPUStatus.CF);
+            this.status.set(ICPUStatus.CARRY);
         }
 
         if (instruction == Instruction.SED) {
-            this.status.set(ICPUStatus.DM);
+            this.status.set(ICPUStatus.DECIMAL_MODE);
         }
 
         if (instruction == Instruction.SEI) {
-            this.status.set(ICPUStatus.ID);
+            this.status.set(ICPUStatus.INTERRUPT_DISABLE);
         }
 
         if (instruction == Instruction.TAX) {
@@ -584,7 +597,7 @@ public int next() {
 
         if (instruction == Instruction.ANC) {
             this.adc(mode, false);
-            this.status.update(ICPUStatus.CF, this.status.contain(ICPUStatus.NF));
+            this.status.update(ICPUStatus.CARRY, this.status.contain(ICPUStatus.NEGATIVE));
         }
 
         if (instruction == Instruction.XAA) {
@@ -602,8 +615,8 @@ public int next() {
             var result = this.ra;
             var b5 = (result >> 5 & 1);
             var b6 = (result >> 6 & 1);
-            this.status.update(ICPUStatus.CF, b6 == 1);
-            this.status.update(ICPUStatus.OF, (b5 ^ b6) == 1);
+            this.status.update(ICPUStatus.CARRY, b6 == 1);
+            this.status.update(ICPUStatus.OVERFLOW, (b5 ^ b6) == 1);
             this.NZUpdate(result);
         }
 
@@ -613,7 +626,7 @@ public int next() {
             value = u8sbc(value, 1);
             this.bus.WriteU8(addr, value);
             if (value <= this.ra) {
-                this.status.set(ICPUStatus.CF);
+                this.status.set(ICPUStatus.CARRY);
             }
             this.NZUpdate(u8sbc(this.ra, value));
         }
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/ppu/PPU.java b/bin/src/main/java/cn/navclub/nes4j/bin/ppu/PPU.java
index af9c39a..6f93d36 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/ppu/PPU.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/ppu/PPU.java
@@ -114,7 +114,7 @@ public byte readOam() {
     }
 
     public void OAMAddrWrite(byte b) {
-        this.oamAddr = (b & 0xff);
+        this.oamAddr = uint8(b);
     }
 
     public void AddrWrite(byte b) {
@@ -221,6 +221,12 @@ public byte readStatus() {
         return b;
     }
 
+    /**
+     * The PPU uses the current VRAM address for both reading and writing PPU memory thru $2007, and for fetching nametable data to draw the background. As it's drawing the background, it updates the address to point to the nametable data currently being drawn. Bits 10-11 hold the base address of the nametable minus $2000. Bits 12-14 are the Y offset of a scanline within a tile.
+     *
+     * @param addr PPU address
+     * @return Current nametable data address
+     */
     private int ramMirror(int addr) {
         var mirrorRam = addr & 0x2fff;
         var ramIndex = mirrorRam - 0x2000;
@@ -289,6 +295,9 @@ public int pixel() {
      * Output one frame video sign.
      */
     protected void fireNMI() {
+        if (!this.ctr.generateVBlankNMI()) {
+            return;
+        }
         this.status.set(PStatus.V_BLANK_OCCUR);
         this.context.interrupt(CPUInterrupt.NMI);
     }
diff --git a/bin/src/main/java/cn/navclub/nes4j/bin/ppu/register/PPUStatus.java b/bin/src/main/java/cn/navclub/nes4j/bin/ppu/register/PPUStatus.java
index 0843c54..8d7b3f5 100644
--- a/bin/src/main/java/cn/navclub/nes4j/bin/ppu/register/PPUStatus.java
+++ b/bin/src/main/java/cn/navclub/nes4j/bin/ppu/register/PPUStatus.java
@@ -16,7 +16,7 @@
  * ---- ----
  * VSO. ....
  * |||| ||||
- * |||+-++++- PPU open bus. Returns stale PPU bus contents.
+ * |||+-++++- <a href="https://www.nesdev.org/wiki/Open_bus_behavior#PPU_open_bus">PPU open bus.</a> Returns stale PPU bus contents.
  * ||+------- Sprite overflow. The intent was for this flag to be set
  * ||         whenever more than eight sprites appear on a scanline, but a
  * ||         hardware bug causes the actual behavior to be more complicated
@@ -32,6 +32,7 @@
  *            line); cleared after reading $2002 and at dot 1 of the
  *            pre-render line.
  * </pre>
+ *
  * @author <a href="https://github.com/GZYangKui">GZYangKui</a>
  */
 public class PPUStatus extends Register<PStatus> {