Separated functionality into separate files. Added initial (untested) support for ARM.

Makefile

@@ -0,0 +1,34 @@
+# Build environment
+PREFIX	?= /home/brad/brados/brados-gcc
+ARCH	?= i586-elf
+GNU	?= $(PREFIX)/$(ARCH)/bin/$(ARCH)
+
+# Source files
+SOURCES_ASM	:= arch/$(ARCH)/boot.s
+SOURCES_C	:= driver/video/vga.c kernel/brados.c lib/string.c
+
+# Object files
+OBJS	:= $(patsubst %.s,%.o,$(SOURCES_ASM))
+OBJS	+= $(patsubst %.c,%.o,$(SOURCES_C))
+
+# Build flags
+CFLAGS = -std=gnu99 -ffreestanding -Iinclude/ -O2 -Wall -Wextra
+LDFLAGS = -ffreestanding -O2 -nostdlib -lgcc
+
+# Build rules
+all: brados.bin
+.PHONY: all clean
+
+brados.bin: $(OBJS) arch/$(ARCH)/linker.ld
+	$(GNU)-gcc -T arch/$(ARCH)/linker.ld -o $@ $(LDFLAGS) $(OBJS)
+
+clean:
+	rm -f $(OBJS) brados.bin
+
+# C
+%.o: %.c Makefile
+	$(GNU)-gcc -c $< -o $@ $(CFLAGS)
+
+# Assembly
+%.o: %.s Makefile
+	$(GNU)-as $< -o $@