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70% of the video he spends just manually copying bytes from a pre-written compiled and likely compressed source (off screen to the right). It's just dressed up
by shurcooL 14y ago
70% of the video he spends just manually copying bytes from a pre-written compiled and likely compressed source (off screen to the right). It's just dressed up (for the general public that find this stuff impressive because they don't really understand what's going on).
Not to downplay it here, I'm just describing what's going on. This is basically a small nice looking demo.
- algorias 14y agoNo compression of any type involved. He writes machine code and saves it to a .com file, which can directly be executed. The first thing it does is activate mode 13h, which gives direct access for drawing to the screen. The surprising thing here is that both these hacks are still supported by various versions of windows. They really used to take backwards compatibility seriously.