added v2.0

07_Operating_System/03_Sys_Test/GPIO.jack

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+../GPIO.jack

07_Operating_System/03_Sys_Test/Main.jack

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+class Main{
+
+    function void main() {
+		while(true){
+			do GPIO.writeLed(GPIO.readLed()+1);
+			do Sys.wait(1);
+		}
+		return;
+	}
+
+}

07_Operating_System/03_Sys_Test/Makefile

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+all: jack vm asm bin sim
+
+jack:
+	../../tools/JackCompiler/JackCompiler.pyc ./
+vm:
+	../../tools/VMTranslator/VMTranslator.pyc ./
+asm:
+	../../tools/Assembler/assembler.pyc out.asm
+bin:
+	../../tools/AsciiToBin.py out.hack
+sim:
+	cp out.hack ../00_HACK/ROM.hack
+upload:
+	iceprogduino -o 64k -w out.bin
+clean:
+	rm -f *.vm *.asm *.hack *.bin *~
+
+.PHONY: all clean

07_Operating_System/03_Sys_Test/Readme.md

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+## Sys.jack
+
+A library that supports various program execution services.
+
+**Hint:** To debug the next projects in real hardware, we can implement one or both of the following strategies into `Sys.jack`
+
+1. Use LED to indicate the state of JACK-OS according to
+
+| LED[1:0] | Sys.jack       | JACK-OS state                      |
+| -------- | -------------- | ---------------------------------- |
+| 00       | at entry       | nothing happened yet               |
+| 01       | Sys.init()     | start execution of Main.main()     |
+| 10       | Sys.halt()     | Main.main() terminated succesfully |
+| 11       | Sys.error(int) | a system error occured             |
+
+2. We can use UART to send some chars according to the state of JACK-OS. e.g. send "GO" at `Sys.init()`, "HALT" at `Sys.halt()` and "ERR" at `Sys.error(int)`.
+
+***
+
+### Project
+
+* Implement `Sys.jack`
+
+* Test in simulation. Change the delay time in `Main.jack` to 1ms.
+  
+  ```
+  $ cd 03_Sys_Test
+  $ make
+  $ cd ../00_HACK
+  $ apio clean
+  $ apio sim
+  ```
+
+* Check, if the LED toggles every 1 milli second:
+  
+  ![](sys.png)
+
+* run in real hardware. Set the delay to 1s = 1000ms with `Sys.wait(1000)` in `Main.main()`.
+  
+  ```
+  $ cd 03_Sys_Test
+  $ make
+  $ make upload
+  ```
+
+* Check if the LED change state every 1 second.

07_Operating_System/03_Sys_Test/Readme.md.backup

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+## Sys.jack
+A library that supports various program execution services.
+***
+## Project
+* Implement `Sys.jack`
+* Test in simulation. Change the delay time in `Main.jack` to 1ms.
+```
+$ cd 03_Sys_Test
+$ make
+$ cd ../00_HACK
+$ apio clean
+$ apio sim
+```
+
+Check, if the LED toggles every 1 milli second:
+
+![](sys.png)
+
+* run in real hardware. Set the delay to 1s = 1000ms with `Sys.wait(1000)` in `Main.main()`.
+```
+$ cd 03_Sys_Test
+$ make
+$ make upload
+```
+
+* Check if the LED change state every 1 second.
+
+**Hint:** To debug the next projects in real hardware, we can implement one or both of the following strategies into `Sys.jack`
+
+
+1. Use LED to indicate the state of JACK-OS according to
+
+|LED[1:0]|Sys.jack |JACK-OS state |
+|------|-|-------|
+|00    |at entry|nothing happened yet|
+|01    |Sys.init()|start execution of Main.main()|
+|10    |Sys.halt()|Main.main() terminated succesfully|
+|11    |Sys.error(int)|a system error occured|
+
+2. We can use UART to send some chars according to the state of JACK-OS. e.g. send "GO" at Sys,init(), "HALT" at Sys.halt() and "ERR<digit>" at Sys.error(int).

07_Operating_System/03_Sys_Test/Sys.jack

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+../Sys.jack

07_Operating_System/03_Sys_Test/UART.jack

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+../UART.jack