quick and dirty CMOS irq emulation (windows install uses it) - emm386 keyboard fix (need a better way...) - better serial emulation (windows install uses it) - LDT and TR caches init fix


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@461 c046a42c-6fe2-441c-8c8c-71466251a162