Cls Magic X86 May 2026

If you wanted "magic" speed, you bypassed the BIOS entirely. In text mode, x86 systems map video memory to a specific segment: .

mov ax, 0B800h ; Point to video memory segment mov es, ax xor di, di ; Start at offset 0 mov ax, 0720h ; 07 = White/Black, 20 = Space character mov cx, 2000 ; 80 * 25 = 2000 words rep stosw ; "Magic" happens here: Repeat storing AX into ES:DI Use code with caution. cls magic x86

Many industrial x86 systems still operate in text mode for diagnostic displays. If you wanted "magic" speed, you bypassed the BIOS entirely

For decades, the most common way to achieve "CLS magic" in a real-mode x86 environment (like DOS) was using . This interrupt handles video services. Many industrial x86 systems still operate in text

with a specific character (usually a space).

To perform the magic, you simply need to decide between (BIOS interrupts) or raw performance (direct memory access). Both methods reflect the core philosophy of x86: giving the programmer total control over the hardware.