diff options
Diffstat (limited to 'hw/lsi53c895a.c')
| -rw-r--r-- | hw/lsi53c895a.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c index 9a212e25f0..e45eefaef7 100644 --- a/hw/lsi53c895a.c +++ b/hw/lsi53c895a.c @@ -839,9 +839,11 @@ static void lsi_execute_script(LSIState *s) uint32_t insn; uint32_t addr; int opcode; + int insn_processed = 0; s->istat1 |= LSI_ISTAT1_SRUN; again: + insn_processed++; insn = read_dword(s, s->dsp); addr = read_dword(s, s->dsp + 4); DPRINTF("SCRIPTS dsp=%08x opcode %08x arg %08x\n", s->dsp, insn, addr); @@ -1196,8 +1198,12 @@ again: } } } - /* ??? Need to avoid infinite loops. */ - if (s->istat1 & LSI_ISTAT1_SRUN && !s->waiting) { + if (insn_processed > 10000 && !s->waiting) { + if (!(s->sien0 & LSI_SIST0_UDC)) + fprintf(stderr, "inf. loop with UDC masked\n"); + lsi_script_scsi_interrupt(s, LSI_SIST0_UDC, 0); + lsi_disconnect(s); + } else if (s->istat1 & LSI_ISTAT1_SRUN && !s->waiting) { if (s->dcntl & LSI_DCNTL_SSM) { lsi_script_dma_interrupt(s, LSI_DSTAT_SSI); } else { |