On 08/22/2010 02:15 PM, Gleb Natapov wrote:
4 - Have the entry points switch immediately to 32-bit mode and call 32-bit unpaged code in 4G-2M+. Everything, for example the INT 13 code, would run in 32-bit mode from high memory.
IIRC this was discussed already. Some applications call BIOS from vm16 mode so switch to 32-bin is impossible.
Ugh. We could use the old 286 trick and reset the CPU to escape to real mode, but this isn't a viable solution (for example, how would we get back?)