/[gxemul]/trunk/src/cpu_mips.c
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revision 7 by dpavlin, Mon Oct 8 16:18:11 2007 UTC revision 8 by dpavlin, Mon Oct 8 16:18:19 2007 UTC
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *   *
27   *   *
28   *  $Id: cpu_mips.c,v 1.41 2005/05/29 17:51:46 debug Exp $   *  $Id: cpu_mips.c,v 1.42 2005/06/11 20:59:11 debug Exp $
29   *   *
30   *  MIPS core CPU emulation.   *  MIPS core CPU emulation.
31   */   */
# Line 1618  void mips_cpu_exception(struct cpu *cpu, Line 1618  void mips_cpu_exception(struct cpu *cpu,
1618                      "pc=%08llx <%s> ]\n", (long long)vaddr,                      "pc=%08llx <%s> ]\n", (long long)vaddr,
1619                      exception_names[exccode], (long long)cpu->cd.mips.pc_last,                      exception_names[exccode], (long long)cpu->cd.mips.pc_last,
1620                      symbol? symbol : "(no symbol)");                      symbol? symbol : "(no symbol)");
1621  cpu->running = 0;  
1622    #ifdef TRACE_NULL_CRASHES
1623                    /*  This can be useful for debugging kernel bugs:  */
1624                    {
1625                            int i = cpu->trace_null_index;
1626                            do {
1627                                    fatal("TRACE: 0x%016llx\n",
1628                                        cpu->trace_null_addr[i]);
1629                                    i ++;
1630                                    i %= TRACE_NULL_N_ENTRIES;
1631                            } while (i != cpu->trace_null_index);
1632                    }
1633                    cpu->running = 0;
1634                    cpu->dead = 1;
1635    #endif
1636          }          }
1637    
1638          /*  Clear the exception code bits of the cause register...  */          /*  Clear the exception code bits of the cause register...  */
# Line 1888  int mips_cpu_run_instr(struct emul *emul Line 1902  int mips_cpu_run_instr(struct emul *emul
1902          /*  Cache the program counter in a local variable:  */          /*  Cache the program counter in a local variable:  */
1903          cached_pc = cpu->pc;          cached_pc = cpu->pc;
1904    
1905    #ifdef TRACE_NULL_CRASHES
1906            cpu->trace_null_addr[cpu->trace_null_index] = cached_pc;
1907            cpu->trace_null_index ++;
1908            cpu->trace_null_index %= TRACE_NULL_N_ENTRIES;
1909    #endif
1910    
1911          /*  Hardwire the zero register to 0:  */          /*  Hardwire the zero register to 0:  */
1912          cpu->cd.mips.gpr[MIPS_GPR_ZERO] = 0;          cpu->cd.mips.gpr[MIPS_GPR_ZERO] = 0;
1913    
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