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PDP10: Added mask on EXE repeat count (COVERITY)

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Bob Supnik 2017-03-09 19:40:24 -08:00 committed by Mark Pizzolato
parent d2100f7549
commit 43d8ee6323
1 changed files with 4 additions and 3 deletions
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7
PDP10/pdp10_sys.c
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@ -23,6 +23,7 @@
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
09-Mar-17 RMS Added mask on EXE repeat count (COVERITY)
20-Jan-17 RMS Fixed RIM loader to handle ITS and RIM10B formats
04-Apr-11 RMS Removed DEUNA/DELUA support - never implemented
01-Feb-07 RMS Added CD support
@ -327,7 +328,7 @@ do {
switch (bty) { /* case type */
case EXE_DIR: /* directory */
if (ndir) /* got one */
if (ndir != 0) /* got one */
return SCPE_FMT;
ndir = fxread (dirbuf, sizeof (d10), bsz, fileref);
if (ndir < bsz) /* error */
@ -361,7 +362,7 @@ do {
for (i = 0; i < ndir; i = i + 2) { /* loop thru dir */
fpage = (int32) (dirbuf[i] & RMASK); /* file page */
mpage = (int32) (dirbuf[i + 1] & RMASK); /* memory page */
rpt = (int32) ((dirbuf[i + 1] >> 27) + 1); /* repeat count */
rpt = ((int32) ((dirbuf[i + 1] >> 27) + 1)) & 0777; /* repeat count */
for (j = 0; j < rpt; j++, mpage++) { /* loop thru rpts */
if (fpage) { /* file pages? */
fseek (fileref, (fpage << PAG_V_PN) * sizeof (d10), SEEK_SET);
@ -379,7 +380,7 @@ for (i = 0; i < ndir; i = i + 2) { /* loop thru dir */
} /* end rpt */
} /* end directory */
if (entvec && entbuf[1])
saved_PC = (int32) entbuf[1] & RMASK; /* start addr */
saved_PC = (int32) (entbuf[1] & RMASK); /* start addr */
return SCPE_OK;
}