Add makefile target for running in simulated environment

Makefile

@@ -12,12 +12,13 @@ VERBOSE   := false
 ARCH      := m1284
 #FREQ     := 18432000UL
 FREQ      := 8000000UL
-MCU       := atmega1284
+MCU       := atmega1284p
 ASP       := usbasp
 CC        := avr-gcc
 LD        := $(CC)
 OBJCOPY   := avr-objcopy
 AVD       := avrdude
+SIM       := simavr
 MKDIR     := mkdir -p
 RMR       := rm -rf
 GIT       := git
@@ -49,8 +50,13 @@ DEPENDS   := $(FILES:%.c=$(TMPDIR)/%.d)
 # AUXILIARY TARGETS (AND FUSE SETTINGS)
 # ==============================================================================
 
-.PHONY: all
-all: flash
+# .PHONY: all
+# all: flash
+
+.PHONY: run
+run: $(TARGET)
+	$(E) "[SIM] $<"
+	$(Q) $(SIM) -m $(MCU) -f $(FREQ) $<
 
 .PHONY: flash
 flash: $(TARGET)