That doesn't clarify anything. ![Stick Out Tongue :P :P](https://www.cavestory.org/images/forums/smilies/tongue2.gif)
what is the Tofu project?
![Stick Out Tongue :P :P](https://www.cavestory.org/images/forums/smilies/tongue2.gif)
what is the Tofu project?
Sign-extends EAX into EDX, forming the quad-word EDX:EAX. Since (I)DIV uses EDX:EAX as its input, CDQ must be called after setting EAX if EDX is not manually initialized (as in 64/32 division) before (I)DIV.