Option ROM init x86/x86emu update

- use default display in int 15 5f35
- move REALMODE_BASE to 0x600, 0x500 can be BDA
- add regparm for assembler functions
- use memset instead of own implementation
- YABEL: copy back the IVT, BDA and VBIOS. Some Xorg drivers require this.
- YABEL: use hardware timer instead of emulated timer, because the emulated
  timer's base is never initialized (leading to division by zero if the 
  timer is really used)

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4852 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
5 files changed
tree: 9f92a9da412d3cb8be7958390164fe44d4b7ec16
  1. documentation/
  2. payloads/
  3. src/
  4. targets/
  5. util/
  7. Makefile
  8. NEWS