Update of "interp.c"

Hello

I've found the following description while browsing the SVN repository:

dosemu > trunk > src > emu-i386 > simx86 > interp.c:

  Correct off-by-one error in lock prefix handling. Fixes crash in
  Breadbox Ensemble lite.

Today, I got a copy of the SVN trunk and compiled it. Everthing went
right. I've made some tests and I can now run 4 different PC/GEOS versions
with all CPU modes (off, vm86, full, vm86sim and fullsim).

Congratulation! The simulated CPU now works with PC/GEOS too !!


Unfortunately, the only thing I still can get running, is the mentioned
Breadbox Ensemble lite :( DOSEMU terminates immediately when starting
BBELITE.


This are the error messages I get with the different CPU settings:


1. $_cpu_emu = "off":

ERROR: general protection at 0x4f3ef: 0


2. $_cpu_emu = "vm86sim" or "fullsim":

ERROR: unexpected CPU exception 0x0e err=0x00000006 cr2=086f007c while in
vm86 (DOS)
Program=sigsegv.c, Line=193
EIP: 11e7:0000088c ESP: 0288:00001614  VFLAGS(b): 00000 01110010 01010111
EAX: 00001320 EBX: 00001e40 ECX: 000000c6 EDX: 00000f6c VFLAGS(h):
00007257
ESI: 00000000 EDI: 00000026 EBP: 00000000 DS: 0288 ES: 0288 FS: 0278 GS:
c4da
FLAGS: CF PF AF ZF IF NT VM VIF  IOPL: 3
STACK: eb 09 7b 93 57 72 88 02 00 00 -> 40 1e e9 08 e7 11 00 00 2b 15
OPS  : 8c d8 1f 5a 5b c3 e8 cf ff cb -> 55 53 1e 56 fb 8b ec c5 76 08
        55                  11e7:088c push bp

X Error of failed request:  BadRequest (invalid request code or no such
operation)
  Major opcode of failed request:  196 ()
  Minor opcode of failed request:  0
  Serial number of failed request:  214
  Current serial number in output stream:  220


3. $_cpu_emu = "vm86" or "full":

No output at all...


Don't know, if I did something wrong. But had to mention this. If I can
help with more information, please let me know.

# uname -a
Linux va1 2.6.30-gentoo-r6 #9 Fri Mar 12 14:29:10 CET 2010 i686 VIA Esther
processor 1000MHz CentaurHauls GNU/Linux


Anyway, many thanks to the developers for this great piece of software.

Andreas