Added emulator as submodule, updated makefile to run directly os in emulator

pat80-computer/software/z80-assembly/os/Makefile

@@ -1,11 +1,17 @@
-os:
+build:
 	@echo "Building PAT80 rom..."
 	@z80asm -i main.asm -o rom.bin || (exit 1)
 	@echo "Generating label lookup table..."
 	@z80asm -i main.asm -o rom.bin -L 2>&1 | grep "Sys_" > abi-generated.asm
 	@echo "PAT80 Rom size:"
 	@du -h rom.bin
+
+write: build
 	@echo "Stretching rom to EEPROM size..."
 	@dd if=/dev/zero of=rom.bin bs=1 count=0 seek=8192
 	@echo "Writing to EEPROM..."
 	@minipro -w rom.bin -p "AT28C64B"
+
+run: build
+	@echo "Starting emulator..."
+	@../../../../pat80-emulator/z80-python-emulator/src/z80sbc.py -b rom.bin