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PDP11, VAX: Fix RQ device Endian compatibility problem (COVERITY)

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This commit is contained in:
Mark Pizzolato 2017-03-11 22:24:41 -08:00
parent c4e963921b
commit aa0924816a
1 changed files with 34 additions and 11 deletions
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45
PDP11/pdp11_rq.c
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@ -1320,10 +1320,11 @@ int32 cidx = rq_map_pa ((uint32) PA);
MSC *cp = rq_ctxmap[cidx];
DEVICE *dptr = rq_devmap[cidx];
sim_debug(DBG_REG, dptr, "rq_rd(PA=0x%08X [%s], access=%d)=0x%04X\n", PA, ((PA >> 1) & 01) ? "SA" : "IP", access, ((PA >> 1) & 01) ? cp->sa : 0);
if (cidx < 0)
return SCPE_IERR;
sim_debug(DBG_REG, dptr, "rq_rd(PA=0x%08X [%s], access=%d)=0x%04X\n", PA, ((PA >> 1) & 01) ? "SA" : "IP", access, ((PA >> 1) & 01) ? cp->sa : 0);
switch ((PA >> 1) & 01) { /* decode PA<1> */
case 0: /* IP */
@ -1513,10 +1514,14 @@ if (cp->csta < CST_UP) { /* still init? */
} /* end if */
for (i = 0; i < RQ_NUMDR; i++) { /* chk unit q's */
uint16 tpktq;
nuptr = dptr->units + i; /* ptr to unit */
if (nuptr->cpkt || (nuptr->pktq == 0))
continue;
pkt = rq_deqh (cp, (uint16 *)&nuptr->pktq); /* get top of q */
tpktq = (uint16)nuptr->pktq;
pkt = rq_deqh (cp, &tpktq); /* get top of q */
nuptr->pktq = tpktq;
if (!rq_mscp (cp, pkt, FALSE)) /* process */
return SCPE_OK;
}
@ -1702,7 +1707,10 @@ sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_avl\n");
if ((uptr = rq_getucb (cp, lu))) { /* unit exist? */
if (q && uptr->cpkt) { /* need to queue? */
rq_enqt (cp, (uint16 *)&uptr->pktq, pkt); /* do later */
uint16 tpktq = (uint16)uptr->pktq;
rq_enqt (cp, &tpktq, pkt); /* do later */
uptr->pktq = tpktq;
return OK;
}
uptr->flags = uptr->flags & ~UNIT_ONL; /* not online */
@ -1799,7 +1807,10 @@ sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_onl\n");
if ((uptr = rq_getucb (cp, lu))) { /* unit exist? */
if (q && uptr->cpkt) { /* need to queue? */
rq_enqt (cp, (uint16 *)&uptr->pktq, pkt); /* do later */
uint16 tpktq = (uint16)uptr->pktq;
rq_enqt (cp, &tpktq, pkt); /* do later */
uptr->pktq = tpktq;
return OK;
}
if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */
@ -1871,7 +1882,10 @@ sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_suc\n");
if ((uptr = rq_getucb (cp, lu))) { /* unit exist? */
if (q && uptr->cpkt) { /* need to queue? */
rq_enqt (cp, (uint16 *)&uptr->pktq, pkt); /* do later */
uint16 tpktq = (uint16)uptr->pktq;
rq_enqt (cp, &tpktq, pkt); /* do later */
uptr->pktq = tpktq;
return OK;
}
if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */
@ -1902,7 +1916,10 @@ sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_fmt\n");
if ((uptr = rq_getucb (cp, lu))) { /* unit exist? */
if (q && uptr->cpkt) { /* need to queue? */
rq_enqt (cp, (uint16 *)&uptr->pktq, pkt); /* do later */
uint16 tpktq = (uint16)uptr->pktq;
rq_enqt (cp, &tpktq, pkt); /* do later */
uptr->pktq = tpktq;
return OK;
}
if (GET_DTYPE (uptr->flags) != RX33_DTYPE) /* RX33? */
@ -1938,8 +1955,12 @@ sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_rw(lu=%d, pkt=%d, queue=%s)\n", lu,
if ((uptr = rq_getucb (cp, lu))) { /* unit exist? */
if (q && uptr->cpkt) { /* need to queue? */
uint16 tpktq = uptr->pktq;
sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_rw - queued\n");
rq_enqt (cp, (uint16 *)&uptr->pktq, pkt); /* do later */
rq_enqt (cp, &tpktq, pkt); /* do later */
uptr->pktq = tpktq;
return OK;
}
sts = rq_rw_valid (cp, pkt, uptr, cmd); /* validity checks */
@ -2127,12 +2148,13 @@ uint32 bc = GETP32 (pkt, RW_WBCL); /* byte count */
uint32 bl = GETP32 (pkt, RW_WBLL); /* block addr */
uint32 ma = GETP32 (pkt, RW_WMPL); /* block addr */
if ((cp == NULL) || (pkt == 0)) /* what??? */
return STOP_RQ;
sim_debug (DBG_TRC, rq_devmap[cp->cnum], "rq_svc(unit=%d, pkt=%d, cmd=%s, lbn=%0X, bc=%0x, phase=%s)\n",
(int)(uptr-rq_devmap[cp->cnum]->units), pkt, rq_cmdname[cp->pak[pkt].d[CMD_OPC]&0x3f], bl, bc,
uptr->io_complete ? "bottom" : "top");
if ((cp == NULL) || (pkt == 0)) /* what??? */
return STOP_RQ;
tbc = (bc > RQ_MAXFR)? RQ_MAXFR: bc; /* trim cnt to max */
if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */
@ -2509,7 +2531,8 @@ if (!rq_getdesc (cp, &cp->rq, &desc)) /* get rsp desc */
if ((desc & UQ_DESC_OWN) == 0) { /* not valid? */
if (qt) /* normal? q tail */
rq_enqt (cp, &cp->rspq, pkt);
else rq_enqh (cp, &cp->rspq, pkt); /* resp q call */
else
rq_enqh (cp, &cp->rspq, pkt); /* resp q call */
sim_activate (dptr->units + RQ_QUEUE, rq_qtime); /* activate q thrd */
return OK;
}