folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

PDP11: Properly handle reads of less than 1 sector

Browse source 
Fix #412, #424
This commit is contained in:
Mark Pizzolato 2017-03-26 06:52:21 -07:00
parent b2cd329f4c
commit c638950211
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
PDP11/pdp11_rl.c
View file

@ -117,12 +117,12 @@
/* Flags in the unit flags word */
#define UNIT_V_WLK (UNIT_V_UF + 0) /* hwre write lock */
#define UNIT_V_RL02 (DKUF_V_UF + 0) /* RL01 vs RL02 */
#define UNIT_V_AUTO (DKUF_V_UF + 1) /* autosize enable */
#define UNIT_V_DUMMY (DKUF_V_UF + 2) /* dummy flag, for SET BADBLOCK */
#define UNIT_V_OFFL (DKUF_V_UF + 3) /* unit off line */
#define UNIT_V_BRUSH (DKUF_V_UF + 4) /* unit has brushes */
#define UNIT_V_WLK (DKUF_V_UF + 0) /* hwre write lock */
#define UNIT_V_RL02 (DKUF_V_UF + 1) /* RL01 vs RL02 */
#define UNIT_V_AUTO (DKUF_V_UF + 2) /* autosize enable */
#define UNIT_V_DUMMY (DKUF_V_UF + 3) /* dummy flag, for SET BADBLOCK */
#define UNIT_V_OFFL (DKUF_V_UF + 4) /* unit off line */
#define UNIT_V_BRUSH (DKUF_V_UF + 5) /* unit has brushes */
#define UNIT_BRUSH (1u << UNIT_V_BRUSH)
#define UNIT_OFFL (1u << UNIT_V_OFFL)
#define UNIT_DUMMY (1u << UNIT_V_DUMMY)
@ -904,7 +904,7 @@ if (wc > maxwc) /* track overrun? */
sim_debug (RLDEB_OPS, &rl_dev, ">>RL svc: cyl %d, sect %d, wc %d, maxwc %d\n", GET_CYL (rlda), GET_SECT (rlda), wc, maxwc);
if (uptr->FNC >= RLCS_READ) { /* read (no hdr)? */
err = sim_disk_rdsect (uptr, da/RL_NUMWD, (uint8 *)rlxb, &sectsread, wc/RL_NUMWD);
err = sim_disk_rdsect (uptr, da/RL_NUMWD, (uint8 *)rlxb, &sectsread, (wc + RL_NUMWD - 1)/RL_NUMWD);
sim_disk_data_trace (uptr, (uint8 *)rlxb, da/RL_NUMWD, sectsread*RL_NUMWD*sizeof(*rlxb), "sim_disk_rdsect", RLDEB_DAT & dptr->dctrl, RLDEB_OPS);
if ((t = Map_WriteW (ma, wc << 1, rlxb))) { /* store buffer */
rlcs = rlcs | RLCS_ERR | RLCS_NXM; /* nxm */
@ -929,7 +929,7 @@ if (uptr->FNC == RLCS_WRITE) { /* write? */
else
if (uptr->FNC == RLCS_WCHK) { /* write check? */
err = sim_disk_rdsect (uptr, da/RL_NUMWD, (uint8 *)rlxb, &sectsread, wc/RL_NUMWD);
err = sim_disk_rdsect (uptr, da/RL_NUMWD, (uint8 *)rlxb, &sectsread, (wc + RL_NUMWD - 1)/RL_NUMWD);
sim_disk_data_trace (uptr, (uint8 *)rlxb, da/RL_NUMWD, sectsread*RL_NUMWD*sizeof(*rlxb), "sim_disk_rdsect", RLDEB_DAT & dptr->dctrl, RLDEB_OPS);
awc = wc; /* save wc */
for (wc = 0; (err == 0) && (wc < awc); wc++) { /* loop thru buf */