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Fix for Issue #53 for DC, DL, and VH multiplexer devices

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This commit is contained in:
Mark Pizzolato
2013-05-16 11:04:43 -07:00
parent e82507d9c8
commit 76fccce27d
3 changed files with 27 additions and 9 deletions
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12
PDP11/pdp11_vh.c
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@@ -93,7 +93,7 @@ extern int32 tmxr_poll, clk_tps;
#ifndef VH_MUXES
#define VH_MUXES (4)
#endif
#define VH_MNOMASK (VH_MUXES - 1)
#define VH_MAXMUX (vh_desc.lines/VH_LINES - 1)
#if defined(VM_VAX)
#if VEC_QBUS
@@ -787,9 +787,12 @@ static t_stat vh_rd ( int32 *data,
int32 PA,
int32 access )
{
int32 vh = ((PA - vh_dib.ba) >> 4) & VH_MNOMASK, line;
int32 vh = ((PA - vh_dib.ba) >> 4), line;
TMLX *lp;
if (vh > VH_MAXMUX) /* validate mux number */
return SCPE_IERR;
switch ((PA >> 1) & 7) {
case 0: /* CSR */
*data = vh_csr[vh] | dq_tx_report (vh);
@@ -873,9 +876,12 @@ static t_stat vh_wr ( int32 data,
int32 PA,
int32 access )
{
int32 vh = ((PA - vh_dib.ba) >> 4) & VH_MNOMASK, line;
int32 vh = ((PA - vh_dib.ba) >> 4), line;
TMLX *lp;
if (vh > VH_MAXMUX) /* validate mux number */
return SCPE_IERR;
sim_debug(DBG_REG, &vh_dev, "vh_wr(PA=0x%08X [%s], access=%d, data=0x%X)\n", PA,
((vh_unit[vh].flags & UNIT_MODEDHU) ? vh_wr_dhu_regs : vh_wr_dhv_regs)[(PA >> 1) & 07], access, data);