Added runtime (kernel 2.0)

runtime/Makefile

@@ -0,0 +1,24 @@
+
+COMP     = /opt/riscv/bin/riscv32-unknown-elf-gcc
+CC_FLAGS = -march=rv32im -mabi=ilp32 -O0 -Wl,-Bstatic,-T,linker.ld -ffreestanding -nostdlib
+
+DMP  = /opt/riscv/bin/riscv32-unknown-elf-objdump
+CPY  = /opt/riscv/bin/riscv32-unknown-elf-objcopy
+
+
+VX_STR  = ./startup/vx_start.s
+VX_INT  = ./intrinsics/vx_intrinsics.s
+VX_IO   = ./io/vx_io.s ./io/vx_io.c
+
+VX_MAIN = ./vx_main.c
+
+all: HEX DUMP ELF
+
+DUMP: ELF
+	$(DMP) -D vortex_runtime.elf > vortex_runtime.dump
+
+HEX: ELF
+	$(CPY) -O ihex vortex_runtime.elf vortex_runtime.hex
+
+ELF: 
+	$(COMP) $(CC_FLAGS) $(VX_STR) $(VX_INT) $(VX_IO) $(VX_MAIN)  -o vortex_runtime.elf