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PDP11: New VT11 setting to enable/disable switches.

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This commit is contained in:
Lars Brinkhoff 2021-02-01 18:44:24 +01:00
parent cea5fc136d
commit 39ab11cbb7
1 changed files with 33 additions and 0 deletions
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33
PDP11/pdp11_vt.c
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@ -81,6 +81,9 @@
*/
#define CYCLE_US (MEMORY_CYCLE*(VT11_DELAY*2+1))
#define UNIT_V_NOSPACEWAR (UNIT_V_UF + 0)
#define UNIT_NOSPACEWAR (1 << UNIT_V_NOSPACEWAR)
extern int32 int_vec[IPL_HLVL][32];
t_stat vt_rd(int32 *data, int32 PA, int32 access);
@ -96,6 +99,8 @@ t_stat vt_set_hspace(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
t_stat vt_show_hspace(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
t_stat vt_set_vspace(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
t_stat vt_show_vspace(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
t_stat vt_set_kb(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
t_stat vt_show_kb(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
t_stat vt_help (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, const char *cptr);
const char *vt_description (DEVICE *dptr);
@ -136,6 +141,8 @@ MTAB vt_mod[] = {
&set_vec, &show_vec, NULL, "Interrupt vector" },
{ MTAB_XTD|MTAB_VDV, 0, NULL, "AUTOCONFIGURE",
&set_addr_flt, NULL, NULL, "Enable autoconfiguration of address & vector" },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "KEYBOARD","KEYBOARD={SPACEWAR|NOSPACEWAR}",
&vt_set_kb, &vt_show_kb, NULL, "Disable or Enable Spacewar switches" },
{ 0 } };
@ -942,17 +949,43 @@ extern int32 SR; /* switch register */
int32 SR; /* switch register */
#endif
t_stat vt_set_kb(UNIT *uptr, int32 val, CONST char *cptr, void *desc)
{
char gbuf[CBUFSIZE];
if (cptr == NULL || *cptr == 0)
return SCPE_ARG;
get_glyph(cptr, gbuf, 0);
if (MATCH_CMD(gbuf, "SPACEWAR") == 0)
uptr->flags &= ~UNIT_NOSPACEWAR;
else if (MATCH_CMD(gbuf, "NOSPACEWAR") == 0)
uptr->flags |= UNIT_NOSPACEWAR;
else
return sim_messagef (SCPE_ARG, "Unexpected Keyboard setting: %s\n", gbuf);
return SCPE_OK;
}
t_stat vt_show_kb(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
{
fprintf(st, "keyboard=%s",
(uptr->flags & UNIT_NOSPACEWAR) ? "nospacewar" : "spacewar");
return SCPE_OK;
}
void
cpu_set_switches(unsigned long v1, unsigned long v2)
{
if ((vt_unit.flags & UNIT_NOSPACEWAR) == 0)
SR = v1 ^ v2;
}
void
cpu_get_switches(unsigned long *p1, unsigned long *p2)
{
if ((vt_unit.flags & UNIT_NOSPACEWAR) == 0) {
*p1 = SR;
*p2 = 0;
}
}
t_stat vt_help (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, const char *cptr)