add uLisp patch

Code/uLisp/README.md

@@ -0,0 +1,68 @@
+# How to compile uLisp 
+
+uLisp for PicoCalc use [arduino ide](https://www.arduino.cc/en/software) to develop.
+
+## Install arduino-pico 
+
+Open up the Arduino IDE and go to File->Preferences.
+
+In the dialog that pops up, enter the following URL in the "Additional Boards Manager URLs" field:
+
+https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
+
+![image](https://user-images.githubusercontent.com/11875/111917251-3c57f400-8a3c-11eb-8120-810a8328ab3f.png)
+
+Hit OK to close the dialog.
+
+Go to Tools->Boards->Board Manager in the IDE
+
+Type "pico" in the search box and select "Add":
+
+![image](https://user-images.githubusercontent.com/11875/111917223-12063680-8a3c-11eb-8884-4f32b8f0feb1.png)
+
+
+Original document reference: https://github.com/earlephilhower/arduino-pico/blob/master/README.md
+
+## Patch code
+```
+git clone https://github.com/technoblogy/ulisp-arm.git
+
+cd uLisp-arm
+
+git reset --hard 97e61151dfb236311089abd3e89029e367613f70 
+
+git apply  uLisp.patch
+```
+
+Install **TFT_eSPI 2.5.34** in arduino ide and patch it
+
+```
+cp patches/Setup60_RP2040_ILI9488.h ~/Arduino/libraries/TFT_eSPI/User_Setups/Setup60_RP2040_ILI9488.h
+```
+
+Add a new include   
+```
+#include <User_Setups/Setup60_RP2040_ILI9488.h> 
+```
+and comment out 
+```
+#include <User_Setup.h>
+```
+in  `~/Arduino/libraries/TFT_eSPI/User_Setup_Select.h`
+
+## Compile and upload
+
+In arduino ide ,config board and other arguments  
+
+Put pico in BOOTSEL mode by pressing BOOTSEL key and power on it  
+
+Hit the upload button in arduino ide  
+
+Here is the screenshot for reference:  
+
+![ulisp arduino](https://github.com/clockworkpi/PicoCalc/blob/master/wiki/arduino_uLisp_compile.png)
+
+
+
+
+