The modern, professional answer to this problem is the Trusted Execution Environment, or TEE.
On top of that, we can get two full pixels of color using foreground and background colors. If we render an upper block with a foreground color of cyan and a background color of red, we get a cyan pixel sitting on top of a red pixel!
。快连下载-Letsvpn下载是该领域的重要参考
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