Text Mode Cursor: Difference between revisions

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push rdx
push rdx


mov dx,0x3d4
mov dx,0x3d4 ;one of VGA's Index registers controller
mov al,0xa ; index 0xa is the LOW cursor shape register
mov al,0xa ; index 0xa is the LOW cursor shape register
out dx,al
out dx,al


inc dx ;VGA's data register, the data register of port 0x3d4, allows reads and writes to VGA's registers.
inc dx
mov al,0x3f ; bits 6-7 must be 0 , if bit 5 set the cursor is disable , bits 0-4 controll the cursor shape
mov al,0x3f ; bits 6-7 must be 0 , if bit 5 set the cursor is disable , bits 0-4 controll the cursor shape
out dx,al
out dx,al