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Diffstat (limited to 'apps/ex13.mu')
| -rw-r--r-- | apps/ex13.mu | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/apps/ex13.mu b/apps/ex13.mu new file mode 100644 index 00000000..3e890785 --- /dev/null +++ b/apps/ex13.mu @@ -0,0 +1,23 @@ +# Load an image from disk and display it on screen. +# +# Build the code disk: +# $ ./translate apps/ex13.mu # generates code.img +# Load a pbm, pgm or ppm image (no more than 255 levels) in the data disk +# $ dd if=/dev/zero of=data.img count=20160 +# $ dd if=___ of=data.img conv=notrunc +# Run: +# $ qemu-system-i386 -hda code.img -hdb data.img + +fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) { + var img-storage: image + var img/esi: (addr image) <- address img-storage + load-image img, data-disk + render-image screen, img, 0/x, 0/y, 0x300/width, 0x300/height +} + +fn load-image self: (addr image), data-disk: (addr disk) { + var s-storage: (stream byte 0x200000) # 512* 0x1000 sectors + var s/ebx: (addr stream byte) <- address s-storage + load-sectors data-disk, 0/lba, 0x1000/sectors, s + initialize-image self, s +} |