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ALL: Standardize writelock behavior adding global UNIT_WLK & UNIT_WPRT

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Historically this functionality was reimplemented within each
DEVICE simulator often with slightly different implementations
and inconsistencies.  Solving this globally within SCP required
changes in many places, but should henceforth be reasonably
managed.

As discussed in #1034
This commit is contained in:
Mark Pizzolato
2021-04-19 10:58:51 -07:00
parent 587b81bed4
commit a015e44c10
81 changed files with 413 additions and 467 deletions
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11
Interdata/id_dp.c
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@@ -37,18 +37,15 @@
#define DP_NUMBY 256 /* bytes/sector */
#define DP_NUMSC 24 /* sectors/track */
#define UNIT_V_WLK (UNIT_V_UF + 0) /* write locked */
#define UNIT_V_DTYPE (UNIT_V_UF + 1) /* disk type */
#define UNIT_V_DTYPE (UNIT_V_UF + 0) /* disk type */
#define UNIT_M_DTYPE 0x1
#define UNIT_V_AUTO (UNIT_V_UF + 2) /* autosize */
#define UNIT_WLK (1 << UNIT_V_WLK)
#define UNIT_DTYPE (UNIT_M_DTYPE << UNIT_V_DTYPE)
#define UNIT_AUTO (1 << UNIT_V_AUTO)
#define GET_DTYPE(x) (((x) >> UNIT_V_DTYPE) & UNIT_M_DTYPE)
#define CYL u3 /* current cylinder */
#define STD u4 /* drive status */
#define UNIT_WPRT (UNIT_WLK | UNIT_RO) /* write protect */
/* Controller status */
@@ -220,8 +217,10 @@ REG dp_reg[] = {
};
MTAB dp_mod[] = {
{ UNIT_WLK, 0, "write enabled", "WRITEENABLED", NULL },
{ UNIT_WLK, UNIT_WLK, "write locked", "LOCKED", NULL },
{ MTAB_XTD|MTAB_VUN, 0, "write enabled", "WRITEENABLED",
&set_writelock, &show_writelock, NULL, "Write enable drive" },
{ MTAB_XTD|MTAB_VUN, 1, NULL, "LOCKED",
&set_writelock, NULL, NULL, "Write enable drive" },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_2315 << UNIT_V_DTYPE) + UNIT_ATT,
"2315", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_5440 << UNIT_V_DTYPE) + UNIT_ATT,