Overhaul the template.

- DATA and RODATA segments added to computer.cfg
 - RAM memory configuration now starts at  to not overwrite the cpu stack
 - hardware.inc added to handle hardware related constants
 - constants removed from via.s
 - constants removed from serial.s
 - serial_delay from serial.s is now dynamic, dependant on CPU_HZ and baud rate
 - serial_baud_* functions added to setup 19200 and 9600 baud
 - mem_copy.s added. data copy functions are to be implemented here
 - copy_data (mem_copy.s) implemented to copy the DATA segment from ROM to RAM
 - propper system setup in main.s
 - Makefile now generates a .map file with the memory map information

Makefile

@@ -1,6 +1,8 @@
 OUTPUT := example.bin
 TARGET_CPU := 65c02
 
+MEM_MAP_FILE := $(OUTPUT:.bin=.map)
+
 # Tool list
 CC65 := cc65
 CA65 := ca65
@@ -20,7 +22,7 @@ all: $(OUTPUT)
 
 $(OUTPUT): $(C_SOURCES) $(ASM_SOURCES)
 	@mkdir -p $(dir $@)
-	$(CL65) -t none --cpu $(TARGET_CPU) -C computer.cfg -O -o $@ $^
+	$(CL65) -t none --cpu $(TARGET_CPU) -C computer.cfg -m $(MEM_MAP_FILE) -O -o $@ $^
 
 clean:
 	rm -f $(OBJECTS)