diff options
Diffstat (limited to 'sim/i960/sem.c')
| -rw-r--r-- | sim/i960/sem.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/sim/i960/sem.c b/sim/i960/sem.c index 5498817..262340e 100644 --- a/sim/i960/sem.c +++ b/sim/i960/sem.c @@ -55,13 +55,15 @@ SEM_FN_NAME (i960base,x_invalid) (SIM_CPU *current_cpu, SEM_ARG sem_arg) SEM_PC vpc = SEM_NEXT_VPC (sem_arg, pc, 0); { -#if WITH_SCACHE - /* Update the recorded pc in the cpu state struct. */ + /* Update the recorded pc in the cpu state struct. + Only necessary for WITH_SCACHE case, but to avoid the + conditional compilation .... */ SET_H_PC (pc); -#endif - sim_engine_invalid_insn (current_cpu, pc); - sim_io_error (CPU_STATE (current_cpu), "invalid insn not handled\n"); - /* NOTREACHED */ + /* Virtual insns have zero size. Overwrite vpc with address of next insn + using the default-insn-bitsize spec. When executing insns in parallel + we may want to queue the fault and continue execution. */ + vpc = SEM_NEXT_VPC (sem_arg, pc, 4); + vpc = sim_engine_invalid_insn (current_cpu, pc, vpc); } return vpc; @@ -7577,7 +7579,7 @@ SEM_FN_NAME (i960base,flushreg) (SIM_CPU *current_cpu, SEM_ARG sem_arg) IADDR UNUSED pc = abuf->addr; SEM_PC vpc = SEM_NEXT_VPC (sem_arg, pc, 4); -do { } while (0); /*nop*/ +((void) 0); /*nop*/ return vpc; #undef FLD @@ -7897,7 +7899,9 @@ SEM_FN_NAME (i960base,init_idesc_table) (SIM_CPU *current_cpu) for (sf = &sem_fns[0]; sf->fn != 0; ++sf) { - int valid_p = CGEN_INSN_MACH_HAS_P (idesc_table[sf->index].idata, mach_num); + const CGEN_INSN *insn = idesc_table[sf->index].idata; + int valid_p = (CGEN_INSN_VIRTUAL_P (insn) + || CGEN_INSN_MACH_HAS_P (insn, mach_num)); #if FAST_P if (valid_p) idesc_table[sf->index].sem_fast = sf->fn; |