mu/ex2.mu

# Test out the video mode by filling in the screen with pixels.
#
# To build a disk image:
#   ./translate ex2.mu             # emits disk.img
# To run:
#   qemu-system-i386 disk.img
# Or:
#   bochs -f bochsrc               # bochsrc loads disk.img

fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) {
  var y/eax: int <- copy 0
  {
    compare y, 0x300/screen-height=768
    break-if->=
    var x/edx: int <- copy 0
    {
      compare x, 0x400/screen-width=1024
      break-if->=
      var color/ecx: int <- copy x
      color <- and 0xff
      pixel-on-real-screen x, y, color
      x <- increment
      loop
    }
    y <- increment
    loop
  }
}