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Notes For V3.5-0
The source set has been extensively overhauled. For correct viewing, set Visual C++ or Emacs to have tab stops every 4 characters. 1. New Features in 3.4-1 1.1 All Ethernet devices - Added Windows user-defined adapter names (from Timothe Litt) 1.2 Interdata, SDS, HP, PDP-8, PDP-18b terminal multiplexors - Added support for SET <unit>n DISCONNECT 1.3 VAX - Added latent QDSS support - Revised autoconfigure to handle QDSS 1.4 PDP-11 - Revised autoconfigure to handle more casees 2. Bugs Fixed in 3.4-1 2.1 SCP and libraries - Trim trailing spaces on all input (for example, attach file names) - Fixed sim_sock spurious SIGPIPE error in Unix/Linux - Fixed sim_tape misallocation of TPC map array for 64b simulators 2.2 1401 - Fixed bug, CPU reset was clearing SSB through SSG 2.3 PDP-11 - Fixed bug in VH vector display routine - Fixed XU runt packet processing (found by Tim Chapman) 2.4 Interdata - Fixed bug in SHOW PAS CONN/STATS - Fixed potential integer overflow exception in divide 2.5 SDS - Fixed bug in SHOW MUX CONN/STATS 2.6 HP - Fixed bug in SHOW MUX CONN/STATS 2.7 PDP-8 - Fixed bug in SHOW TTIX CONN/STATS - Fixed bug in SET/SHOW TTOXn LOG 2.8 PDP-18b - Fixed bug in SHOW TTIX CONN/STATS - Fixed bug in SET/SHOW TTOXn LOG 2.9 Nova, Eclipse - Fixed potential integer overflow exception in divide
This commit is contained in:
Bob Supnik
committed by
Mark Pizzolato
Mark Pizzolato
parent
ec60bbf329
commit
b7c1eae41f
333
NOVA/nova_dsk.c
333
NOVA/nova_dsk.c
@@ -1,6 +1,6 @@
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/* nova_dsk.c: 4019 fixed head disk simulator
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Copyright (c) 1993-2004, Robert M. Supnik
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Copyright (c) 1993-2005, Robert M. Supnik
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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@@ -19,23 +19,23 @@
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Robert M Supnik shall not
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be used in advertising or otherwise to promote the sale, use or other dealings
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Except as contained in this notice, the name of Robert M Supnik shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Robert M Supnik.
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dsk fixed head disk
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dsk fixed head disk
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04-Jan-04 RMS Changed sim_fsize calling sequence
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26-Jul-03 RMS Fixed bug in set size routine
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14-Mar-03 RMS Fixed variable capacity interaction with save/restore
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03-Mar-03 RMS Fixed variable capacity and autosizing
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03-Oct-02 RMS Added DIB
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06-Jan-02 RMS Revised enable/disable support
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23-Aug-01 RMS Fixed bug in write watermarking
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26-Apr-01 RMS Added device enable/disable support
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10-Dec-00 RMS Added Eclipse support
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15-Oct-00 RMS Editorial changes
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14-Apr-99 RMS Changed t_addr to unsigned
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04-Jan-04 RMS Changed sim_fsize calling sequence
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26-Jul-03 RMS Fixed bug in set size routine
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14-Mar-03 RMS Fixed variable capacity interaction with save/restore
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03-Mar-03 RMS Fixed variable capacity and autosizing
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03-Oct-02 RMS Added DIB
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06-Jan-02 RMS Revised enable/disable support
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23-Aug-01 RMS Fixed bug in write watermarking
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26-Apr-01 RMS Added device enable/disable support
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10-Dec-00 RMS Added Eclipse support
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15-Oct-00 RMS Editorial changes
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14-Apr-99 RMS Changed t_addr to unsigned
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The 4019 is a head-per-track disk. To minimize overhead, the entire disk
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is buffered in memory.
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@@ -44,61 +44,62 @@
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#include "nova_defs.h"
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#include <math.h>
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#define UNIT_V_AUTO (UNIT_V_UF + 0) /* autosize */
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#define UNIT_V_PLAT (UNIT_V_UF + 1) /* #platters - 1 */
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#define UNIT_M_PLAT 07
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#define UNIT_PLAT (UNIT_M_PLAT << UNIT_V_PLAT)
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#define UNIT_GETP(x) ((((x) >> UNIT_V_PLAT) & UNIT_M_PLAT) + 1)
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#define UNIT_AUTO (1 << UNIT_V_AUTO)
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#define UNIT_PLAT (UNIT_M_PLAT << UNIT_V_PLAT)
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#define UNIT_V_AUTO (UNIT_V_UF + 0) /* autosize */
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#define UNIT_V_PLAT (UNIT_V_UF + 1) /* #platters - 1 */
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#define UNIT_M_PLAT 07
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#define UNIT_PLAT (UNIT_M_PLAT << UNIT_V_PLAT)
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#define UNIT_GETP(x) ((((x) >> UNIT_V_PLAT) & UNIT_M_PLAT) + 1)
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#define UNIT_AUTO (1 << UNIT_V_AUTO)
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#define UNIT_PLAT (UNIT_M_PLAT << UNIT_V_PLAT)
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/* Constants */
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#define DSK_NUMWD 256 /* words/sector */
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#define DSK_NUMSC 8 /* sectors/track */
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#define DSK_NUMTR 128 /* tracks/disk */
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#define DSK_DKSIZE (DSK_NUMTR*DSK_NUMSC*DSK_NUMWD) /* words/disk */
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#define DSK_AMASK ((DSK_NUMDK*DSK_NUMTR*DSK_NUMSC) - 1) /* address mask */
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#define DSK_NUMDK 8 /* disks/controller */
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#define GET_DISK(x) (((x) / (DSK_NUMSC * DSK_NUMTR)) & (DSK_NUMDK - 1))
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#define DSK_NUMWD 256 /* words/sector */
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#define DSK_NUMSC 8 /* sectors/track */
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#define DSK_NUMTR 128 /* tracks/disk */
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#define DSK_DKSIZE (DSK_NUMTR*DSK_NUMSC*DSK_NUMWD) /* words/disk */
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#define DSK_AMASK ((DSK_NUMDK*DSK_NUMTR*DSK_NUMSC) - 1) /* address mask */
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#define DSK_NUMDK 8 /* disks/controller */
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#define GET_DISK(x) (((x) / (DSK_NUMSC * DSK_NUMTR)) & (DSK_NUMDK - 1))
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/* Parameters in the unit descriptor */
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#define FUNC u4 /* function */
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#define FUNC u4 /* function */
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/* Status register */
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#define DSKS_WLS 020 /* write lock status */
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#define DSKS_DLT 010 /* data late error */
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#define DSKS_NSD 004 /* non-existent disk */
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#define DSKS_CRC 002 /* parity error */
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#define DSKS_ERR 001 /* error summary */
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#define DSKS_ALLERR (DSKS_WLS | DSKS_DLT | DSKS_NSD | DSKS_CRC | DSKS_ERR)
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#define DSKS_WLS 020 /* write lock status */
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#define DSKS_DLT 010 /* data late error */
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#define DSKS_NSD 004 /* non-existent disk */
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#define DSKS_CRC 002 /* parity error */
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#define DSKS_ERR 001 /* error summary */
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#define DSKS_ALLERR (DSKS_WLS | DSKS_DLT | DSKS_NSD | DSKS_CRC | DSKS_ERR)
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/* Map logical sector numbers to physical sector numbers
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(indexed by track<2:0>'sector)
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*/
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static const int32 sector_map[] = {
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0, 2, 4, 6, 1, 3, 5, 7, 1, 3, 5, 7, 2, 4, 6, 0,
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2, 4, 6, 0, 3, 5, 7, 1, 3, 5, 7, 1, 4, 6, 0, 2,
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4, 6, 0, 2, 5, 7, 1, 3, 5, 7, 1, 3, 6, 0, 2, 4,
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6, 0, 2, 4, 7, 1, 3, 5, 7, 1, 3, 5, 0, 2, 4, 6 };
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0, 2, 4, 6, 1, 3, 5, 7, 1, 3, 5, 7, 2, 4, 6, 0,
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2, 4, 6, 0, 3, 5, 7, 1, 3, 5, 7, 1, 4, 6, 0, 2,
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4, 6, 0, 2, 5, 7, 1, 3, 5, 7, 1, 3, 6, 0, 2, 4,
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6, 0, 2, 4, 7, 1, 3, 5, 7, 1, 3, 5, 0, 2, 4, 6
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};
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#define DSK_MMASK 077
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#define GET_SECTOR(x) ((int) fmod (sim_gtime() / ((double) (x)), \
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((double) DSK_NUMSC)))
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#define DSK_MMASK 077
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#define GET_SECTOR(x) ((int) fmod (sim_gtime() / ((double) (x)), \
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((double) DSK_NUMSC)))
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extern uint16 M[];
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extern UNIT cpu_unit;
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extern int32 int_req, dev_busy, dev_done, dev_disable;
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int32 dsk_stat = 0; /* status register */
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int32 dsk_da = 0; /* disk address */
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int32 dsk_ma = 0; /* memory address */
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int32 dsk_wlk = 0; /* wrt lock switches */
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int32 dsk_stopioe = 1; /* stop on error */
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int32 dsk_time = 100; /* time per sector */
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int32 dsk_stat = 0; /* status register */
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int32 dsk_da = 0; /* disk address */
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int32 dsk_ma = 0; /* memory address */
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int32 dsk_wlk = 0; /* wrt lock switches */
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int32 dsk_stopioe = 1; /* stop on error */
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int32 dsk_time = 100; /* time per sector */
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DEVICE dsk_dev;
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int32 dsk (int32 pulse, int32 code, int32 AC);
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@@ -110,49 +111,53 @@ t_stat dsk_set_size (UNIT *uptr, int32 val, char *cptr, void *desc);
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/* DSK data structures
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dsk_dev device descriptor
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dsk_unit unit descriptor
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dsk_reg register list
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dsk_dev device descriptor
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dsk_unit unit descriptor
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dsk_reg register list
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*/
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DIB dsk_dib = { DEV_DSK, INT_DSK, PI_DSK, &dsk };
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UNIT dsk_unit =
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{ UDATA (&dsk_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_BUFABLE+UNIT_MUSTBUF,
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DSK_DKSIZE) };
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UNIT dsk_unit = {
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UDATA (&dsk_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_BUFABLE+UNIT_MUSTBUF,
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DSK_DKSIZE)
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};
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REG dsk_reg[] = {
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{ ORDATA (STAT, dsk_stat, 16) },
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{ ORDATA (DA, dsk_da, 16) },
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{ ORDATA (MA, dsk_ma, 16) },
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{ FLDATA (BUSY, dev_busy, INT_V_DSK) },
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{ FLDATA (DONE, dev_done, INT_V_DSK) },
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{ FLDATA (DISABLE, dev_disable, INT_V_DSK) },
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{ FLDATA (INT, int_req, INT_V_DSK) },
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{ ORDATA (WLK, dsk_wlk, 8) },
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{ DRDATA (TIME, dsk_time, 24), REG_NZ + PV_LEFT },
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{ FLDATA (STOP_IOE, dsk_stopioe, 0) },
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{ NULL } };
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{ ORDATA (STAT, dsk_stat, 16) },
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{ ORDATA (DA, dsk_da, 16) },
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{ ORDATA (MA, dsk_ma, 16) },
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{ FLDATA (BUSY, dev_busy, INT_V_DSK) },
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{ FLDATA (DONE, dev_done, INT_V_DSK) },
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{ FLDATA (DISABLE, dev_disable, INT_V_DSK) },
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{ FLDATA (INT, int_req, INT_V_DSK) },
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{ ORDATA (WLK, dsk_wlk, 8) },
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{ DRDATA (TIME, dsk_time, 24), REG_NZ + PV_LEFT },
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{ FLDATA (STOP_IOE, dsk_stopioe, 0) },
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{ NULL }
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};
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MTAB dsk_mod[] = {
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{ UNIT_PLAT, (0 << UNIT_V_PLAT), NULL, "1P", &dsk_set_size },
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{ UNIT_PLAT, (1 << UNIT_V_PLAT), NULL, "2P", &dsk_set_size },
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{ UNIT_PLAT, (2 << UNIT_V_PLAT), NULL, "3P", &dsk_set_size },
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{ UNIT_PLAT, (3 << UNIT_V_PLAT), NULL, "4P", &dsk_set_size },
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{ UNIT_PLAT, (4 << UNIT_V_PLAT), NULL, "5P", &dsk_set_size },
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{ UNIT_PLAT, (5 << UNIT_V_PLAT), NULL, "6P", &dsk_set_size },
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{ UNIT_PLAT, (6 << UNIT_V_PLAT), NULL, "7P", &dsk_set_size },
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{ UNIT_PLAT, (7 << UNIT_V_PLAT), NULL, "8P", &dsk_set_size },
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{ UNIT_AUTO, UNIT_AUTO, "autosize", "AUTOSIZE", NULL },
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{ 0 } };
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{ UNIT_PLAT, (0 << UNIT_V_PLAT), NULL, "1P", &dsk_set_size },
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{ UNIT_PLAT, (1 << UNIT_V_PLAT), NULL, "2P", &dsk_set_size },
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{ UNIT_PLAT, (2 << UNIT_V_PLAT), NULL, "3P", &dsk_set_size },
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{ UNIT_PLAT, (3 << UNIT_V_PLAT), NULL, "4P", &dsk_set_size },
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{ UNIT_PLAT, (4 << UNIT_V_PLAT), NULL, "5P", &dsk_set_size },
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{ UNIT_PLAT, (5 << UNIT_V_PLAT), NULL, "6P", &dsk_set_size },
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{ UNIT_PLAT, (6 << UNIT_V_PLAT), NULL, "7P", &dsk_set_size },
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{ UNIT_PLAT, (7 << UNIT_V_PLAT), NULL, "8P", &dsk_set_size },
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{ UNIT_AUTO, UNIT_AUTO, "autosize", "AUTOSIZE", NULL },
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{ 0 }
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};
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DEVICE dsk_dev = {
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"DK", &dsk_unit, dsk_reg, dsk_mod,
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1, 8, 21, 1, 8, 16,
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NULL, NULL, &dsk_reset,
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&dsk_boot, &dsk_attach, NULL,
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&dsk_dib, DEV_DISABLE };
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"DK", &dsk_unit, dsk_reg, dsk_mod,
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1, 8, 21, 1, 8, 16,
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NULL, NULL, &dsk_reset,
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&dsk_boot, &dsk_attach, NULL,
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&dsk_dib, DEV_DISABLE
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};
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/* IOT routine */
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int32 dsk (int32 pulse, int32 code, int32 AC)
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@@ -160,47 +165,56 @@ int32 dsk (int32 pulse, int32 code, int32 AC)
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int32 t, rval;
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rval = 0;
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switch (code) { /* decode IR<5:7> */
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case ioDIA: /* DIA */
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rval = dsk_stat & DSKS_ALLERR; /* read status */
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break;
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case ioDOA: /* DOA */
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dsk_da = AC & DSK_AMASK; /* save disk addr */
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break;
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case ioDIB: /* DIB */
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rval = dsk_ma & AMASK; /* read mem addr */
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break;
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case ioDOB: /* DOB */
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dsk_ma = AC & AMASK; /* save mem addr */
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break; } /* end switch code */
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switch (code) { /* decode IR<5:7> */
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if (pulse) { /* any pulse? */
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dev_busy = dev_busy & ~INT_DSK; /* clear busy */
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dev_done = dev_done & ~INT_DSK; /* clear done */
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int_req = int_req & ~INT_DSK; /* clear int */
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dsk_stat = 0; /* clear status */
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sim_cancel (&dsk_unit); } /* stop I/O */
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case ioDIA: /* DIA */
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rval = dsk_stat & DSKS_ALLERR; /* read status */
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break;
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if ((pulse == iopP) && ((dsk_wlk >> GET_DISK (dsk_da)) & 1)) { /* wrt lock? */
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dev_done = dev_done | INT_DSK; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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dsk_stat = DSKS_ERR + DSKS_WLS; /* set status */
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return rval; }
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case ioDOA: /* DOA */
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dsk_da = AC & DSK_AMASK; /* save disk addr */
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break;
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if (pulse & 1) { /* read or write? */
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if (((uint32) (dsk_da * DSK_NUMWD)) >= dsk_unit.capac) { /* inv sev? */
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dev_done = dev_done | INT_DSK; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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dsk_stat = DSKS_ERR + DSKS_NSD; /* set status */
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return rval; } /* done */
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dsk_unit.FUNC = pulse; /* save command */
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dev_busy = dev_busy | INT_DSK; /* set busy */
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t = sector_map[dsk_da & DSK_MMASK] - GET_SECTOR (dsk_time);
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if (t < 0) t = t + DSK_NUMSC;
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sim_activate (&dsk_unit, t * dsk_time); } /* activate */
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case ioDIB: /* DIB */
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rval = dsk_ma & AMASK; /* read mem addr */
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break;
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case ioDOB: /* DOB */
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dsk_ma = AC & AMASK; /* save mem addr */
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break;
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} /* end switch code */
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if (pulse) { /* any pulse? */
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dev_busy = dev_busy & ~INT_DSK; /* clear busy */
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dev_done = dev_done & ~INT_DSK; /* clear done */
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int_req = int_req & ~INT_DSK; /* clear int */
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dsk_stat = 0; /* clear status */
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sim_cancel (&dsk_unit); /* stop I/O */
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}
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if ((pulse == iopP) && ((dsk_wlk >> GET_DISK (dsk_da)) & 1)) { /* wrt lock? */
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dev_done = dev_done | INT_DSK; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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dsk_stat = DSKS_ERR + DSKS_WLS; /* set status */
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return rval;
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}
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if (pulse & 1) { /* read or write? */
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if (((uint32) (dsk_da * DSK_NUMWD)) >= dsk_unit.capac) { /* inv sev? */
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dev_done = dev_done | INT_DSK; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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dsk_stat = DSKS_ERR + DSKS_NSD; /* set status */
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return rval; /* done */
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}
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dsk_unit.FUNC = pulse; /* save command */
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dev_busy = dev_busy | INT_DSK; /* set busy */
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t = sector_map[dsk_da & DSK_MMASK] - GET_SECTOR (dsk_time);
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if (t < 0) t = t + DSK_NUMSC;
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sim_activate (&dsk_unit, t * dsk_time); /* activate */
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}
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return rval;
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}
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/* Unit service */
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t_stat dsk_svc (UNIT *uptr)
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@@ -208,58 +222,63 @@ t_stat dsk_svc (UNIT *uptr)
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int32 i, da, pa;
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int16 *fbuf = uptr->filebuf;
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dev_busy = dev_busy & ~INT_DSK; /* clear busy */
|
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dev_done = dev_done | INT_DSK; /* set done */
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dev_busy = dev_busy & ~INT_DSK; /* clear busy */
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dev_done = dev_done | INT_DSK; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
|
||||
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if ((uptr->flags & UNIT_BUF) == 0) { /* not buf? abort */
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dsk_stat = DSKS_ERR + DSKS_NSD; /* set status */
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return IORETURN (dsk_stopioe, SCPE_UNATT); }
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if ((uptr->flags & UNIT_BUF) == 0) { /* not buf? abort */
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dsk_stat = DSKS_ERR + DSKS_NSD; /* set status */
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||||
return IORETURN (dsk_stopioe, SCPE_UNATT);
|
||||
}
|
||||
|
||||
da = dsk_da * DSK_NUMWD; /* calc disk addr */
|
||||
if (uptr->FUNC == iopS) { /* read? */
|
||||
for (i = 0; i < DSK_NUMWD; i++) { /* copy sector */
|
||||
pa = MapAddr (0, (dsk_ma + i) & AMASK); /* map address */
|
||||
if (MEM_ADDR_OK (pa)) M[pa] = fbuf[da + i]; }
|
||||
dsk_ma = (dsk_ma + DSK_NUMWD) & AMASK; }
|
||||
if (uptr->FUNC == iopP) { /* write? */
|
||||
for (i = 0; i < DSK_NUMWD; i++) { /* copy sector */
|
||||
pa = MapAddr (0, (dsk_ma + i) & AMASK); /* map address */
|
||||
fbuf[da + i] = M[pa]; }
|
||||
if (((uint32) (da + i)) >= uptr->hwmark) /* past end? */
|
||||
uptr->hwmark = da + i + 1; /* upd hwmark */
|
||||
dsk_ma = (dsk_ma + DSK_NUMWD + 3) & AMASK; }
|
||||
da = dsk_da * DSK_NUMWD; /* calc disk addr */
|
||||
if (uptr->FUNC == iopS) { /* read? */
|
||||
for (i = 0; i < DSK_NUMWD; i++) { /* copy sector */
|
||||
pa = MapAddr (0, (dsk_ma + i) & AMASK); /* map address */
|
||||
if (MEM_ADDR_OK (pa)) M[pa] = fbuf[da + i];
|
||||
}
|
||||
dsk_ma = (dsk_ma + DSK_NUMWD) & AMASK;
|
||||
}
|
||||
if (uptr->FUNC == iopP) { /* write? */
|
||||
for (i = 0; i < DSK_NUMWD; i++) { /* copy sector */
|
||||
pa = MapAddr (0, (dsk_ma + i) & AMASK); /* map address */
|
||||
fbuf[da + i] = M[pa];
|
||||
}
|
||||
if (((uint32) (da + i)) >= uptr->hwmark) /* past end? */
|
||||
uptr->hwmark = da + i + 1; /* upd hwmark */
|
||||
dsk_ma = (dsk_ma + DSK_NUMWD + 3) & AMASK;
|
||||
}
|
||||
|
||||
dsk_stat = 0; /* set status */
|
||||
dsk_stat = 0; /* set status */
|
||||
return SCPE_OK;
|
||||
}
|
||||
|
||||
|
||||
/* Reset routine */
|
||||
|
||||
t_stat dsk_reset (DEVICE *dptr)
|
||||
{
|
||||
dsk_stat = dsk_da = dsk_ma = 0;
|
||||
dev_busy = dev_busy & ~INT_DSK; /* clear busy */
|
||||
dev_done = dev_done & ~INT_DSK; /* clear done */
|
||||
int_req = int_req & ~INT_DSK; /* clear int */
|
||||
dev_busy = dev_busy & ~INT_DSK; /* clear busy */
|
||||
dev_done = dev_done & ~INT_DSK; /* clear done */
|
||||
int_req = int_req & ~INT_DSK; /* clear int */
|
||||
sim_cancel (&dsk_unit);
|
||||
return SCPE_OK;
|
||||
}
|
||||
|
||||
/* Bootstrap routine */
|
||||
|
||||
#define BOOT_START 2000
|
||||
#define BOOT_LEN (sizeof (boot_rom) / sizeof (int))
|
||||
#define BOOT_START 2000
|
||||
#define BOOT_LEN (sizeof (boot_rom) / sizeof (int))
|
||||
|
||||
static const int32 boot_rom[] = {
|
||||
060220, /* NIOC DSK ; clear disk */
|
||||
0102400, /* SUB 0,0 ; addr = 0 */
|
||||
061020, /* DOA 0,DSK ; set disk addr */
|
||||
062120, /* DOBS 0,DSK ; set mem addr, rd */
|
||||
063620, /* SKPDN DSK ; done? */
|
||||
000776, /* JMP .-2 */
|
||||
000377, /* JMP 377 */
|
||||
};
|
||||
060220, /* NIOC DSK ; clear disk */
|
||||
0102400, /* SUB 0,0 ; addr = 0 */
|
||||
061020, /* DOA 0,DSK ; set disk addr */
|
||||
062120, /* DOBS 0,DSK ; set mem addr, rd */
|
||||
063620, /* SKPDN DSK ; done? */
|
||||
000776, /* JMP .-2 */
|
||||
000377, /* JMP 377 */
|
||||
};
|
||||
|
||||
t_stat dsk_boot (int32 unitno, DEVICE *dptr)
|
||||
{
|
||||
@@ -282,11 +301,11 @@ t_stat r;
|
||||
r = attach_unit (uptr, cptr);
|
||||
if (r != SCPE_OK) return r;
|
||||
if ((uptr->flags & UNIT_AUTO) && (sz = sim_fsize (uptr->fileref))) {
|
||||
p = (sz + ds_bytes - 1) / ds_bytes;
|
||||
if (p >= DSK_NUMDK) p = DSK_NUMDK - 1;
|
||||
uptr->flags = (uptr->flags & ~UNIT_PLAT) |
|
||||
(p << UNIT_V_PLAT); }
|
||||
uptr->capac = UNIT_GETP (uptr->flags) * DSK_DKSIZE; /* set capacity */
|
||||
p = (sz + ds_bytes - 1) / ds_bytes;
|
||||
if (p >= DSK_NUMDK) p = DSK_NUMDK - 1;
|
||||
uptr->flags = (uptr->flags & ~UNIT_PLAT) | (p << UNIT_V_PLAT);
|
||||
}
|
||||
uptr->capac = UNIT_GETP (uptr->flags) * DSK_DKSIZE; /* set capacity */
|
||||
return SCPE_OK;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user