rt-thread/bsp/qemu-vexpress-a9/qemu.sh

if [ ! -f "sd.bin" ]; then
dd if=/dev/zero of=sd.bin bs=64M count=1
fi

qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -serial stdio -sd sd.bin
[BSP] Update qemu script 2018-01-23 11:16:59 +08:00			`if [ ! -f "sd.bin" ]; then`
			`dd if=/dev/zero of=sd.bin bs=64M count=1`
			`fi`

			`qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -serial stdio -sd sd.bin`