arm-sim: set the FSR and FAR registers in XScale upon Data Abort

Hi Guys,

  I am applying the patch below to make the ARM simulator set the FSR
  and FAR registers in the XScale if a Data Abort is detected whilst
  accessing memory.

Cheers
        Nick

2002-05-29  Nick Clifton  <nickc@xxxxxxxxxxxxxxxxxxxx>

        * armcopro.c (XScale_check_memacc): Set the FSR and FAR registers
        if a Data Abort is detected.

Index: sim/arm/armcopro.c
===================================================================
RCS file: /cvs/src/src/sim/arm/armcopro.c,v
retrieving revision 1.9
diff -c -3 -p -w -r1.9 armcopro.c
*** sim/arm/armcopro.c  27 May 2002 14:11:54 -0000      1.9
--- sim/arm/armcopro.c  29 May 2002 18:58:44 -0000
*************** XScale_check_memacc (ARMul_State * state
*** 479,485 ****
--- 479,492 ----
  
    /* Check alignment fault enable/disable.  */
    if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN) && (* address & 3))
+     {
+       /* Set the FSR and FAR.
+        Do not use XScale_set_fsr_far as this checks the DCSR register.  */
+       write_cp15_reg (state, 5, 0, 0, ARMul_CP15_R5_MMU_EXCPT);
+       write_cp15_reg (state, 6, 0, 0, * address);
+ 
        ARMul_Abort (state, ARMul_DataAbortV);
+     }
  
    if (XScale_debug_moe (state, -1))
      return;