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VAX750: Fix UBA register alignment and length check

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The VAX 11/750 diagnostic supervisor makes word length references to
UBA register space, so this must have been legal.
This commit is contained in:
Mark Pizzolato 2016-06-20 16:51:52 -07:00
parent c5d5a9dfbf
commit f946508c8b
1 changed files with 1 additions and 1 deletions
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VAX/vax750_uba.c
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@ -200,7 +200,7 @@ t_stat uba_rdreg (int32 *val, int32 pa, int32 lnt)
{
int32 idx, ofs;
if ((pa & 3) || (lnt != L_LONG)) { /* unaligned or not lw? */
if ((pa & 3) || (lnt < L_WORD)) { /* unaligned or not at least word? */
sim_printf (">>UBA: invalid adapter read mask, pa = %X, lnt = %d\r\n", pa, lnt);
/* FIXME: set appropriate error bits */
return SCPE_OK;