1 # The simplest possible program: just an infinite loop. 2 # All is well if your computer clears screen and hangs without restarting. 3 # On an emulator the window may get bigger to accomodate the 1280x1024 graphics mode. 4 # 5 # To convert to a disk image, first prepare a realistically sized disk image: 6 # dd if=/dev/zero of=disk.img count=20160 # 512-byte sectors, so 10MB 7 # Load the disk image: 8 # cat baremetal/boot.hex baremetal/ex1.hex |./bootstrap run apps/hex > a.bin 9 # dd if=a.bin of=disk.img conv=notrunc 10 # To run: 11 # qemu-system-i386 disk.img 12 # Or: 13 # bochs -f apps/boot.bochsrc # boot.bochsrc loads disk.img 14 15 # address 0x8000 16 e9 fb ff ff ff # jump to address 0x8000 17 18 # vim:ft=subx