1 # Draw a character using the built-in font (GNU unifont) 2 # 3 # To build a disk image: 4 # ./translate_mu_baremetal baremetal/ex4.mu # emits disk.img 5 # To run: 6 # qemu-system-i386 disk.img 7 # Or: 8 # bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img 9 # 10 # Expected output: letter 'A' in green near the top-left corner of screen 11 12 fn main { 13 var g/eax: grapheme <- copy 0x41 # 'A' 14 draw-grapheme 0, g, 2, 1, 0xa # x of 2 graphemes = 16px from top-left; y of 1 grapheme = 16px down from top-left 15 }