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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_idc.c
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@@ -39,11 +39,9 @@
#define IDC_NUMBY 256 /* bytes/sector */
#define IDC_NUMSC 64 /* 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 0x7
#define UNIT_V_AUTO (UNIT_V_UF + 4) /* 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)
@@ -52,7 +50,6 @@
#define HD u4 /* current head */
#define STD buf /* drive status */
#define FNC wait /* function */
#define UNIT_WPRT (UNIT_WLK | UNIT_RO) /* write protect */
#define IDC_DRVMASK ((1 << ID_NUMDR) - 1) /* drive bit mask */
#define IDC_DIRMASK (IDC_DRVMASK << (i_IDC + 1)) /* drive irq mask */
@@ -291,8 +288,10 @@ REG idc_reg[] = {
};
MTAB idc_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_MCCDD16 << UNIT_V_DTYPE) + UNIT_ATT,
"MCCDD16", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_MCCDD48 << UNIT_V_DTYPE) + UNIT_ATT,