1. Developing/Programming PalmOS Applications CS449 Introduction to Systems Software

2. Palm Application Development & GUI Programming
C Program
hello.c
SayHello( MainForm );
C header file
hello.h
#define MainForm 1000
hello .prc
PalmOS executable
Palm Resource file (GUI Elements)
hello.rcp
FORM ID MainForm AT ( )
USABLE
BEGIN
TITLE "Hello World"
END
Give handouts for the source code of hello.h, hello.rcp, and hello.c

3. Palm Resource file (GUI Elements)
Forms
Alerts
Menus
Tables
Lists/Popup
Buttons
Push buttons
Check boxes
Sliders, scrollbars
Labels Look Up:
Form bitmaps
TextFields
Give this slide and next 3 as handouts on GUI elements

4. Compiling & Linking a PalmOS Application (Hello World example)
(1) C Compiler
m68k-palmos-gcc
-c hello.c –o hello.o
(2) Post-Processor
m68k-palmos-obj-res hello
C source code
(hello.c)
C Object code
“Motorola binary code”
m68k-palmos-gcc hello.o -o hello
Separate code Resources
typeXXX.myfile.grc files
(type=code, data, pref, rloc)
C Preprocessor
Header file (hello.h)
(4) Build-prc
Post-Linker
Combine all objects
into a binary .prc
Palm executable
Palm Executable
(.prc)
Give this as a handout (works as a student reference)
build-prc -t appl
-o hello.prc
-n “Hello”
-c *.grc *.bin
(3) PilRC hello.rcp
UI Resource Compiler
Convert .rcp to binary formatted
A number of .bin files
PalmOS Resource
Code (hello.rcp)

5. PalmOS Developer Studio
Programming Tools
Without IDE
(Command-line)
PRC-tools:
m68k-palmos-gcc
(C Compiler)
m68k-palmos-obj-res
(gcc Post-Processor)
PilRC
(UI Resource Compiler)
Build-PRC
(PalmOS Post-Linker)
Cmd-line debugger
Test/Run executable:
Simulator
Emulator
PDA (HotSync)
Cygwin Shell
With IDE (GUI)
Good Environment to:
Edit/Develop Code
Build Project
Run
Step in/out during
execution
Trace/Report
Built-in PRC-tools
Built-in Debugger
Test/Run executable:
Built-in Simulator
Built-in Emulator
PDA (HotSync)
PalmOS Developer Studio

6. Cygwin Shell

8. Palm Examples: Hello World Program GUI & Run

9. PalmOS Developer Studio

10. target : source file(s)
Makefile-1
Script file to automate program compilation and linking (making)
Makefile is a list of rules and commands:
target : source file(s)
command (must be preceded by a tab)
CC=gcc
CFLAGS=-g
hello: hello.c
$CC $(CFLAGS) -ohello hello.c

11. PalmOS Application Makefile

12. Examples: 1.CS Calculator

13. Example-2: IR Chat Program - Serial Communications using IR/Serial Ports

14. Example-3: Attack Game - Serial Communications

15. Example-4: GPad Program - Communicating over a network with TCP/IP

16. Example-5: VFS Program – Virtual File System

17. Example-5: VFS Program – Virtual File System

18. Operating System Kernel
Palm OS Architecture
Applications
User Mode
Library (Managers)
Memory
Manager
Window
Manager
Database
Manager
Comm.
Manager
VFS
Manager …
Operating System Kernel
Kernel Mode
Hardware