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Option ROM init x86/x86emu update

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- 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
This commit is contained in:
Stefan Reinauer
2009-10-25 19:50:47 +00:00
committed by Stefan Reinauer
parent 46a895e633
commit 074356ec81
5 changed files with 17 additions and 10 deletions
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2
util/x86emu/x86_asm.S
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@@ -17,7 +17,7 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#define REALMODE_BASE 0x500
#define REALMODE_BASE 0x600
#define RELOCATED(x) (x - __realmode_code + REALMODE_BASE)
/* CR0 bits */