On 2/10/2016 1:23 PM, R.S. wrote:
Assuming all current OS'es do start in 31-bit mode and switch to 64-bit mode in early phase and that feature will be removed - no current OS will IPL ...unless some patches will be issued for them (supported ones at least).
It's quite conceivable that today's operating systems are *already* testing the architectural mode and switching only when needed. For example:
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