Wikipedia:Reference desk/Archives/Computing/2013 October 19

= October 19 =

Windows 3.1 CPU
Is there a way to add HLT to Windows 3.1 in standard mode (not 386-enhanced mode)? 82.44.76.14 (talk) 19:20, 19 October 2013 (UTC)
 * It's a privileged (ring 0) instruction. I haven't worked with Win 3.1 for a very long time, but you may have to write a device driver or similarly elevated-privilege module to be able to use this instruction.- gadfium 01:28, 20 October 2013 (UTC)
 * I assume you know about WQGHLT, which does what you ask for in 386-enhanced mode. Have you tried DOSIDLE? I am no expert on Windows 3.1 in standard mode, but as far as I understand that should be worth a try. -- da pete 14:06, 20 October 2013 (UTC)