nir Posted November 19, 2018 Share Posted November 19, 2018 paint16b was created by Hellmood and is 16 bytes in size. paint16b implements a mouse-driven drawing program which has the ability to exit back to DOS and also display the mouse cursor. org 100h ; code starts at 0x100 mov al,0x12 ; assume ah = 0 ; set graphics mode to 640*480 inc bx ; assume bx = 0 ; set to 1 (show cursor) mloop: int 0x10 ; first loop, switch to graphic mode ; further loops, set pixel xchg bx,ax ; first loop, set AX to 1 (show cursor) ; further loops, restore old calling mode xor al,0x02 ; switch modes : show cursor <-> get mouse state ; updating XY every second loop plus drawing ; one pixel left results in thicker lines int 0x33 ; call the mouse interrupt xchg bx,ax ; store the button state in AL for drawing ; remember the current calling mode ; for switching it later (in BX) mov ah,0x0C ; set mode to "set pixel" loop mloop ; dec CX -> draw one pixel left from cursor ; basically enables drawing pixels ; while the cursor is active ; allows exit if the mouse is leftmost ret ; assume [[FFEE]] = [0] = CD20 = int 20 Source Link to comment Share on other sites More sharing options...
masterupc Posted November 19, 2018 Share Posted November 19, 2018 Assembler... so long I've ever seen those commands... 🙃 Link to comment Share on other sites More sharing options...
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