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AltairZ80: Updated Morrow Disk Jockey disk controller and minor code cleanup

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This commit is contained in:
Peter Schorn 2021-01-18 20:43:56 +01:00
parent b2a63a5678
commit 9f064db561
9 changed files with 517 additions and 76 deletions
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6
AltairZ80/altairz80_sio.c
View file

@ -651,6 +651,8 @@ static SIO_PORT_INFO port_table[PORT_TABLE_SIZE] = {
{0x01, 0, 0, 0, 0, FALSE, 0, FALSE, TRUE }, {0x01, 0, 0, 0, 0, FALSE, 0, FALSE, TRUE },
{0x02, 0, VGSIO_CAN_READ, 0, VGSIO_CAN_WRITE, FALSE, 0, TRUE, TRUE }, {0x02, 0, VGSIO_CAN_READ, 0, VGSIO_CAN_WRITE, FALSE, 0, TRUE, TRUE },
{0x03, 0, VGSIO_CAN_READ, 0, VGSIO_CAN_WRITE, FALSE, 0, FALSE, TRUE }, {0x03, 0, VGSIO_CAN_READ, 0, VGSIO_CAN_WRITE, FALSE, 0, FALSE, TRUE },
{0x04, 0, VGSIO_CAN_READ, 0, VGSIO_CAN_WRITE, FALSE, 0, TRUE, TRUE },
{0x05, 0, VGSIO_CAN_READ, 0, VGSIO_CAN_WRITE, FALSE, 0, FALSE, TRUE },
{0x10, 0, SIO_CAN_READ, 0, SIO_CAN_WRITE, TRUE, SIO_RESET, FALSE, TRUE }, {0x10, 0, SIO_CAN_READ, 0, SIO_CAN_WRITE, TRUE, SIO_RESET, FALSE, TRUE },
{0x11, 0, SIO_CAN_READ, 0, SIO_CAN_WRITE, TRUE, SIO_RESET, TRUE, TRUE }, {0x11, 0, SIO_CAN_READ, 0, SIO_CAN_WRITE, TRUE, SIO_RESET, TRUE, TRUE },
{0x14, 1, SIO_CAN_READ, 0, SIO_CAN_WRITE, TRUE, SIO_RESET, FALSE, TRUE }, {0x14, 1, SIO_CAN_READ, 0, SIO_CAN_WRITE, TRUE, SIO_RESET, FALSE, TRUE },
@ -1634,7 +1636,9 @@ void do_SIMH_sleep(void) {
Otherwise there is the possibility that such interrupts are skipped. */ Otherwise there is the possibility that such interrupts are skipped. */
if ((simh_unit.flags & UNIT_SIMH_TIMERON) && rtc_avail && (sim_os_msec() + 1 >= timeOfNextInterrupt)) if ((simh_unit.flags & UNIT_SIMH_TIMERON) && rtc_avail && (sim_os_msec() + 1 >= timeOfNextInterrupt))
return; return;
if (SIMHSleep && !sio_unit.u4) /* time to sleep and SIO not attached to a file */ if (SIMHSleep && !sio_unit.u4)
/* time to sleep and SIO not attached to a file.
Use 'D SLEEP 0' to disable this functionality when not needed. */
sim_os_ms_sleep(SIMHSleep); sim_os_ms_sleep(SIMHSleep);
} }

4
AltairZ80/mfdc.c
View file

@ -290,7 +290,6 @@ static t_stat mfdc_attach(UNIT *uptr, CONST char *cptr)
/* Detach routine */ /* Detach routine */
static t_stat mfdc_detach(UNIT *uptr) static t_stat mfdc_detach(UNIT *uptr)
{ {
t_stat r;
int8 i; int8 i;
for(i = 0; i < MFDC_MAX_DRIVES; i++) { for(i = 0; i < MFDC_MAX_DRIVES; i++) {
@ -307,8 +306,7 @@ static t_stat mfdc_detach(UNIT *uptr)
diskClose(&mfdc_info->drive[i].imd); diskClose(&mfdc_info->drive[i].imd);
} }
r = detach_unit(uptr); /* detach unit */ return detach_unit(uptr); /* detach unit */
return r;
} }

4
AltairZ80/s100_2sio.c
View file

@ -747,12 +747,12 @@ static int32 m2sio_stat(DEVICE *dptr, int32 io, int32 data)
switch (data & M2SIO_RTSMSK) { switch (data & M2SIO_RTSMSK) {
case M2SIO_RTSLTIE: case M2SIO_RTSLTIE:
case M2SIO_RTSLTID: case M2SIO_RTSLTID:
r = m2sio_config_rts(dptr, 0); /* enable RTS */ m2sio_config_rts(dptr, 0); /* enable RTS */
break; break;
case M2SIO_RTSHTID: case M2SIO_RTSHTID:
case M2SIO_RTSHTBR: case M2SIO_RTSHTBR:
r = m2sio_config_rts(dptr, 1); /* disable RTS */ m2sio_config_rts(dptr, 1); /* disable RTS */
break; break;
default: default:

534
AltairZ80/s100_dj2d.c
View file

@ -23,12 +23,11 @@
be used in advertising or otherwise to promote the sale, use or other dealings be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Patrick Linstruth. in this Software without prior written authorization from Patrick Linstruth.
*************************************************************************** These functions support the original Morrow DISK JOCKEY 2D (Model A) and
** This device simulates the DISK JOCKEY 2D Model B, not the original 2D ** Model B disk controllers.
** **
** If I can find PROMs and CP/M images for the original 2D, I will add ** The model is selected using the "SET DJ2D MODEL={A|B}" command. The default
** support. ** is the Model B.
***************************************************************************
DJ2D units: DJ2D units:
@ -77,6 +76,7 @@ extern void setClockFrequency(const uint32 Value);
enum { FMT_SD, FMT_256, FMT_512, FMT_1024, FMT_UNKNOWN }; enum { FMT_SD, FMT_256, FMT_512, FMT_1024, FMT_UNKNOWN };
static uint32 dj2d_image_size[] = {256256, 509184, 587008, 625920, 0}; static uint32 dj2d_image_size[] = {256256, 509184, 587008, 625920, 0};
static uint32 dj2d_2s_image_size[] = {512512, 1021696, 1178368, 1256704, 0};
static uint16 dj2d_sector_len[] = {128, 256, 512, 1024, 0}; static uint16 dj2d_sector_len[] = {128, 256, 512, 1024, 0};
static uint16 dj2d_spt[] = {26, 26, 15, 8, 0}; static uint16 dj2d_spt[] = {26, 26, 15, 8, 0};
static uint16 dj2d_track_len[] = {5000, 9800, 10300, 9700, 0}; static uint16 dj2d_track_len[] = {5000, 9800, 10300, 9700, 0};
@ -93,9 +93,271 @@ static uint16 dj2d_track_len[] = {5000, 9800, 10300, 9700, 0};
static uint8 dj2d_mem[DJ2D_MEM_SIZE]; static uint8 dj2d_mem[DJ2D_MEM_SIZE];
/* DJ2D PROM is 1018 bytes following by 8 memory-mapped I/O bytes */ /* DJ2D PROM is 1016 bytes following by 8 memory-mapped I/O bytes */
static uint8 dj2d_prom_e000[DJ2D_PROM_SIZE] = { static uint8 dj2d_proma_e000[DJ2D_PROM_SIZE] = {
0xc3, 0x61, 0xe0, 0xc3, 0xff, 0xe0, 0xc3, 0xf0,
0xe0, 0xc3, 0x6f, 0xe1, 0xc3, 0xa0, 0xe1, 0xc3,
0x93, 0xe1, 0xc3, 0x56, 0xe1, 0xc3, 0xa9, 0xe1,
0xc3, 0xfc, 0xe1, 0xc3, 0x4b, 0xe1, 0xc3, 0x0e,
0xe1, 0xc3, 0x19, 0xe1, 0xc3, 0x43, 0xe1, 0xc3,
0x1f, 0xe1, 0xc3, 0xdb, 0xe0, 0xc3, 0xbf, 0xe3,
0xc3, 0xde, 0xe3, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x31, 0xfa, 0xe6, 0x21, 0xe1, 0xe6, 0x11,
0xeb, 0xe2, 0x06, 0x04, 0x1a, 0xbe, 0xc2, 0x7a,
0xe0, 0x23, 0x13, 0x05, 0xc2, 0x6c, 0xe0, 0xc3,
0x7d, 0xe0, 0xcd, 0xe9, 0xe3, 0x21, 0x01, 0x00,
0xe5, 0x2e, 0x03, 0xe5, 0x26, 0xff, 0xe5, 0xe5,
0xe5, 0xe5, 0x21, 0x00, 0x00, 0xe5, 0x33, 0x26,
0x08, 0xe5, 0x26, 0xfe, 0xe5, 0x26, 0xe7, 0xe5,
0x26, 0x18, 0xe5, 0x3e, 0x03, 0x32, 0xfa, 0xe3,
0x3e, 0xd0, 0x32, 0xfc, 0xe3, 0xaf, 0xcd, 0x25,
0xe3, 0xd2, 0xb7, 0xe0, 0x3e, 0x1e, 0x32, 0xea,
0xe6, 0xcd, 0xe9, 0xe3, 0xc3, 0xa5, 0xe0, 0x3e,
0x3e, 0x32, 0xea, 0xe6, 0x36, 0x03, 0xe1, 0xcd,
0xa2, 0xe3, 0xc1, 0xc5, 0xd5, 0x2a, 0xed, 0xe2,
0xe5, 0x2a, 0xeb, 0xe2, 0xe5, 0x00, 0xc5, 0x06,
0x0a, 0xc5, 0xcd, 0xa9, 0xe1, 0xc1, 0xd0, 0x05,
0xc2, 0xd1, 0xe0, 0x0e, 0x3f, 0x11, 0xc3, 0xa2,
0x1b, 0x7a, 0xb3, 0xc2, 0xe0, 0xe0, 0x3e, 0x20,
0xa9, 0x32, 0xf9, 0xe3, 0x4f, 0xc3, 0xdd, 0xe0,
0x3a, 0xf9, 0xe3, 0xe6, 0x08, 0xc2, 0xf0, 0xe0,
0x79, 0x2f, 0x32, 0xf8, 0xe3, 0x2f, 0xc9, 0x3a,
0xf9, 0xe3, 0xe6, 0x04, 0xc2, 0xff, 0xe0, 0x3a,
0xf8, 0xe3, 0x2f, 0xe6, 0x7f, 0xc9, 0x3a, 0xf9,
0xe3, 0xe6, 0x04, 0xc0, 0xcd, 0xff, 0xe0, 0xb9,
0xc9, 0x3a, 0xf9, 0xe3, 0xe6, 0x04, 0xc9, 0x3a,
0xfe, 0xe3, 0x47, 0x3a, 0xfd, 0xe3, 0x4f, 0x3a,
0xf6, 0xe6, 0x2f, 0xe6, 0x01, 0x0f, 0x57, 0x3a,
0xf7, 0xe6, 0x07, 0x07, 0x07, 0x82, 0x57, 0x3a,
0xfd, 0xe6, 0x17, 0x17, 0x82, 0x57, 0x3a, 0xec,
0xe6, 0x82, 0xc9, 0xe5, 0x2a, 0xe7, 0xe6, 0x44,
0x4d, 0xe1, 0xc9, 0x3e, 0xfc, 0x81, 0x3e, 0x10,
0xd8, 0x79, 0x32, 0xeb, 0xe6, 0xc9, 0x21, 0x08,
0x20, 0x09, 0xd2, 0x68, 0xe1, 0x21, 0x00, 0x1c,
0x09, 0xda, 0x68, 0xe1, 0x37, 0x3e, 0x10, 0xc9,
0x60, 0x69, 0x22, 0xe7, 0xe6, 0xaf, 0xc9, 0xcd,
0x7b, 0xe1, 0xf5, 0x9f, 0x32, 0xf9, 0xe6, 0xf1,
0xc3, 0x2a, 0xe2, 0xcd, 0xef, 0xe2, 0xd8, 0xaf,
0x32, 0xed, 0xe6, 0x32, 0xe9, 0xe6, 0x21, 0x00,
0x00, 0x3e, 0x09, 0xcd, 0x6c, 0xe3, 0xe6, 0x04,
0xc0, 0x37, 0xc9, 0xaf, 0xb1, 0x37, 0xc8, 0x79,
0xfe, 0x1b, 0x3f, 0xd8, 0x32, 0xf8, 0xe6, 0xc9,
0x79, 0xfe, 0x4d, 0x3f, 0xd8, 0x32, 0xf9, 0xe6,
0xc9, 0xcd, 0x35, 0xe2, 0xe1, 0x3e, 0x40, 0xbb,
0xca, 0xe8, 0xe1, 0xe5, 0x19, 0x19, 0xe5, 0xf9,
0x1b, 0x21, 0xff, 0xe3, 0x3e, 0x80, 0x32, 0xfc,
0xe3, 0x46, 0x4e, 0xc5, 0x46, 0x1d, 0xc2, 0xc2,
0xe1, 0x15, 0xf2, 0xc2, 0xe1, 0x4e, 0xc5, 0x31,
0xc6, 0xe6, 0xe1, 0xd1, 0x2b, 0x46, 0x1a, 0x77,
0x78, 0x12, 0x13, 0x7d, 0xbb, 0xc2, 0xd4, 0xe1,
0x7c, 0xba, 0xc2, 0xd4, 0xe1, 0xc3, 0x18, 0xe2,
0x07, 0x4f, 0x11, 0xff, 0xe3, 0x3e, 0x80, 0x32,
0xfc, 0xe3, 0x1a, 0x77, 0x23, 0x0d, 0xc2, 0xf2,
0xe1, 0xc3, 0x18, 0xe2, 0xcd, 0x35, 0xe2, 0xe1,
0xf9, 0x1b, 0x21, 0xff, 0xe3, 0x3e, 0xa0, 0x32,
0xfc, 0xe3, 0xc1, 0x71, 0x70, 0xc1, 0x71, 0x1d,
0xc2, 0x0c, 0xe2, 0x15, 0xf2, 0x0c, 0xe2, 0x70,
0x3a, 0xfc, 0xe3, 0x1f, 0xda, 0x18, 0xe2, 0x17,
0xe6, 0xdf, 0xca, 0x26, 0xe2, 0x37, 0x2a, 0xca,
0xe6, 0xf9, 0xf5, 0x3a, 0xf6, 0xe6, 0xee, 0x10,
0x32, 0xfa, 0xe3, 0xf1, 0xc9, 0xd1, 0x21, 0x00,
0x00, 0x39, 0x31, 0xcc, 0xe6, 0xe5, 0x2a, 0xe7,
0xe6, 0xe5, 0xd5, 0x21, 0x26, 0xe2, 0xe5, 0xcd,
0xef, 0xe2, 0xd8, 0x3a, 0xfd, 0xe3, 0x3c, 0xcc,
0x7b, 0xe1, 0xda, 0x9f, 0xe2, 0x21, 0xfd, 0xe3,
0x3a, 0xf9, 0xe6, 0xbe, 0x23, 0x23, 0x77, 0x79,
0x32, 0xfa, 0xe3, 0xca, 0x7d, 0xe2, 0xaf, 0x32,
0xe9, 0xe6, 0x3a, 0xfa, 0xe3, 0xe6, 0x08, 0x7f,
0x1f, 0x1f, 0xc6, 0x18, 0x21, 0x00, 0x00, 0xcd,
0x6c, 0xe3, 0xda, 0x9f, 0xe2, 0x3a, 0xe9, 0xe6,
0xb7, 0xc2, 0xc9, 0xe2, 0x06, 0x02, 0x3e, 0x1d,
0xcd, 0x67, 0xe3, 0xe6, 0x99, 0xca, 0xa5, 0xe2,
0x3a, 0xf6, 0xe6, 0xee, 0x01, 0x32, 0xf6, 0xe6,
0x32, 0xfa, 0xe3, 0x05, 0xc2, 0x86, 0xe2, 0xcd,
0x6f, 0xe1, 0xc3, 0x9e, 0xe3, 0x06, 0x0a, 0x11,
0xff, 0xe3, 0x21, 0xfa, 0xe6, 0x3e, 0xc4, 0x32,
0xfc, 0xe3, 0x1a, 0x77, 0x2c, 0xc2, 0xb2, 0xe2,
0x21, 0xfc, 0xe3, 0xcd, 0x7e, 0xe3, 0xb7, 0xca,
0xc9, 0xe2, 0x05, 0xc2, 0xa7, 0xe2, 0xc3, 0x9f,
0xe2, 0x3a, 0xfd, 0xe6, 0x4f, 0x06, 0x00, 0x21,
0xeb, 0xe2, 0x09, 0x3a, 0xf8, 0xe6, 0x47, 0x86,
0x3e, 0x10, 0xd8, 0xe1, 0x78, 0x32, 0xfe, 0xe3,
0x21, 0x40, 0x00, 0x0d, 0x54, 0x5d, 0xf8, 0x29,
0xc3, 0xe3, 0xe2, 0xe5, 0xe5, 0xf0, 0xf7, 0x21,
0xeb, 0xe6, 0x4e, 0x23, 0x5e, 0x71, 0x23, 0x7b,
0xb9, 0x7e, 0x36, 0x04, 0x23, 0xca, 0x25, 0xe3,
0xe5, 0x16, 0x00, 0x42, 0x19, 0x19, 0x3a, 0xf6,
0xe6, 0x77, 0x23, 0x11, 0xfd, 0xe3, 0x1a, 0x77,
0xe1, 0x09, 0x09, 0x7e, 0x32, 0xf6, 0xe6, 0x23,
0x7e, 0x12, 0x3e, 0x7f, 0x07, 0x0d, 0xf2, 0x1c,
0xe3, 0x32, 0xea, 0xe6, 0xaf, 0x21, 0xfa, 0xe3,
0xa6, 0x32, 0xe9, 0xe6, 0xf5, 0x3a, 0xea, 0xe6,
0x4f, 0x3a, 0xf7, 0xe6, 0x2f, 0xa1, 0x32, 0xf9,
0xe3, 0x3a, 0xf6, 0xe6, 0x4f, 0x3a, 0xf9, 0xe6,
0xd6, 0x01, 0x9f, 0x3d, 0x2f, 0xb1, 0x77, 0xee,
0x02, 0x4f, 0xf1, 0xc2, 0x59, 0xe3, 0xe5, 0x2a,
0xe5, 0xe6, 0x2b, 0x7c, 0xb5, 0xc2, 0x52, 0xe3,
0xe1, 0x7e, 0xe6, 0x20, 0xc8, 0x3a, 0xf6, 0xe6,
0xf6, 0x18, 0x77, 0x3e, 0x80, 0x37, 0xc9, 0x2a,
0xe5, 0xe6, 0x29, 0x29, 0xeb, 0x21, 0xfc, 0xe3,
0xc3, 0x76, 0xe3, 0xc3, 0xef, 0xe2, 0x00, 0x00,
0x77, 0x7e, 0x1f, 0xd2, 0x79, 0xe3, 0x7e, 0x1f,
0x7e, 0xd0, 0x1b, 0x7a, 0xb3, 0xc2, 0x7e, 0xe3,
0xe5, 0x23, 0x56, 0x3a, 0xf6, 0xe6, 0xee, 0x04,
0x32, 0xfa, 0xe3, 0xee, 0x04, 0xe3, 0x32, 0xfa,
0xe3, 0x36, 0xd0, 0xe3, 0x72, 0xe1, 0x3e, 0x11,
0x37, 0xc9, 0x11, 0x00, 0x00, 0x21, 0xfa, 0xe3,
0x0e, 0x10, 0x7e, 0xa1, 0xc2, 0xaa, 0xe3, 0x7e,
0xa1, 0xca, 0xaf, 0xe3, 0x13, 0xe3, 0xe3, 0xe3,
0xe3, 0x7e, 0xa1, 0xc2, 0xb4, 0xe3, 0xc9, 0x79,
0xe6, 0x01, 0x2f, 0x47, 0x21, 0xeb, 0xe6, 0x5e,
0x16, 0x00, 0x23, 0x7e, 0xab, 0xf5, 0x23, 0x23,
0x19, 0x19, 0x7e, 0xf6, 0x01, 0xa0, 0x77, 0xf1,
0xc0, 0x7e, 0x32, 0xf6, 0xe6, 0xc9, 0x79, 0xe6,
0x01, 0x17, 0x17, 0x17, 0x17, 0x32, 0xf7, 0xe6,
0xc9, 0x21, 0x00, 0x00, 0x2b, 0x7c, 0xb5, 0xe3,
0xe3, 0xc2, 0xec, 0xe3, 0xc9, 0xe0, 0x00, 0xc3,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
static uint8 dj2d_proma_f800[DJ2D_PROM_SIZE] = {
0xc3, 0x61, 0xf8, 0xc3, 0xff, 0xf8, 0xc3, 0xf0,
0xf8, 0xc3, 0x6f, 0xf9, 0xc3, 0xa0, 0xf9, 0xc3,
0x93, 0xf9, 0xc3, 0x56, 0xf9, 0xc3, 0xa9, 0xf9,
0xc3, 0xfc, 0xf9, 0xc3, 0x4b, 0xf9, 0xc3, 0x0e,
0xf9, 0xc3, 0x19, 0xf9, 0xc3, 0x43, 0xf9, 0xc3,
0x1f, 0xf9, 0xc3, 0xdb, 0xf8, 0xc3, 0xbf, 0xfb,
0xc3, 0xde, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x31, 0xfa, 0xfe, 0x21, 0xe1, 0xfe, 0x11,
0xeb, 0xfa, 0x06, 0x04, 0x1a, 0xbe, 0xc2, 0x7a,
0xf8, 0x23, 0x13, 0x05, 0xc2, 0x6c, 0xf8, 0xc3,
0x7d, 0xf8, 0xcd, 0xe9, 0xfb, 0x21, 0x01, 0x00,
0xe5, 0x2e, 0x03, 0xe5, 0x26, 0xff, 0xe5, 0xe5,
0xe5, 0xe5, 0x21, 0x00, 0x00, 0xe5, 0x33, 0x26,
0x08, 0xe5, 0x26, 0xfe, 0xe5, 0x26, 0xff, 0xe5,
0x26, 0x18, 0xe5, 0x3e, 0x03, 0x32, 0xfa, 0xfb,
0x3e, 0xd0, 0x32, 0xfc, 0xfb, 0xaf, 0xcd, 0x25,
0xfb, 0xd2, 0xb7, 0xf8, 0x3e, 0x1e, 0x32, 0xea,
0xfe, 0xcd, 0xe9, 0xfb, 0xc3, 0xa5, 0xf8, 0x3e,
0x3e, 0x32, 0xea, 0xfe, 0x36, 0x03, 0xe1, 0xcd,
0xa2, 0xfb, 0xc1, 0xc5, 0xd5, 0x2a, 0xed, 0xfa,
0xe5, 0x2a, 0xeb, 0xfa, 0xe5, 0x00, 0xc5, 0x06,
0x0a, 0xc5, 0xcd, 0xa9, 0xf9, 0xc1, 0xd0, 0x05,
0xc2, 0xd1, 0xf8, 0x0e, 0x3f, 0x11, 0xc3, 0xa2,
0x1b, 0x7a, 0xb3, 0xc2, 0xe0, 0xf8, 0x3e, 0x20,
0xa9, 0x32, 0xf9, 0xfb, 0x4f, 0xc3, 0xdd, 0xf8,
0x3a, 0xf9, 0xfb, 0xe6, 0x08, 0xc2, 0xf0, 0xf8,
0x79, 0x2f, 0x32, 0xf8, 0xfb, 0x2f, 0xc9, 0x3a,
0xf9, 0xfb, 0xe6, 0x04, 0xc2, 0xff, 0xf8, 0x3a,
0xf8, 0xfb, 0x2f, 0xe6, 0x7f, 0xc9, 0x3a, 0xf9,
0xfb, 0xe6, 0x04, 0xc0, 0xcd, 0xff, 0xf8, 0xb9,
0xc9, 0x3a, 0xf9, 0xfb, 0xe6, 0x04, 0xc9, 0x3a,
0xfe, 0xfb, 0x47, 0x3a, 0xfd, 0xfb, 0x4f, 0x3a,
0xf6, 0xfe, 0x2f, 0xe6, 0x01, 0x0f, 0x57, 0x3a,
0xf7, 0xfe, 0x07, 0x07, 0x07, 0x82, 0x57, 0x3a,
0xfd, 0xfe, 0x17, 0x17, 0x82, 0x57, 0x3a, 0xec,
0xfe, 0x82, 0xc9, 0xe5, 0x2a, 0xe7, 0xfe, 0x44,
0x4d, 0xe1, 0xc9, 0x3e, 0xfc, 0x81, 0x3e, 0x10,
0xd8, 0x79, 0x32, 0xeb, 0xfe, 0xc9, 0x21, 0x08,
0x08, 0x09, 0xd2, 0x68, 0xf9, 0x21, 0x00, 0x04,
0x09, 0xda, 0x68, 0xf9, 0x37, 0x3e, 0x10, 0xc9,
0x60, 0x69, 0x22, 0xe7, 0xfe, 0xaf, 0xc9, 0xcd,
0x7b, 0xf9, 0xf5, 0x9f, 0x32, 0xf9, 0xfe, 0xf1,
0xc3, 0x2a, 0xfa, 0xcd, 0xef, 0xfa, 0xd8, 0xaf,
0x32, 0xed, 0xfe, 0x32, 0xe9, 0xfe, 0x21, 0x00,
0x00, 0x3e, 0x09, 0xcd, 0x6c, 0xfb, 0xe6, 0x04,
0xc0, 0x37, 0xc9, 0xaf, 0xb1, 0x37, 0xc8, 0x79,
0xfe, 0x1b, 0x3f, 0xd8, 0x32, 0xf8, 0xfe, 0xc9,
0x79, 0xfe, 0x4d, 0x3f, 0xd8, 0x32, 0xf9, 0xfe,
0xc9, 0xcd, 0x35, 0xfa, 0xe1, 0x3e, 0x40, 0xbb,
0xca, 0xe8, 0xf9, 0xe5, 0x19, 0x19, 0xe5, 0xf9,
0x1b, 0x21, 0xff, 0xfb, 0x3e, 0x80, 0x32, 0xfc,
0xfb, 0x46, 0x4e, 0xc5, 0x46, 0x1d, 0xc2, 0xc2,
0xf9, 0x15, 0xf2, 0xc2, 0xf9, 0x4e, 0xc5, 0x31,
0xc6, 0xfe, 0xe1, 0xd1, 0x2b, 0x46, 0x1a, 0x77,
0x78, 0x12, 0x13, 0x7d, 0xbb, 0xc2, 0xd4, 0xf9,
0x7c, 0xba, 0xc2, 0xd4, 0xf9, 0xc3, 0x18, 0xfa,
0x07, 0x4f, 0x11, 0xff, 0xfb, 0x3e, 0x80, 0x32,
0xfc, 0xfb, 0x1a, 0x77, 0x23, 0x0d, 0xc2, 0xf2,
0xf9, 0xc3, 0x18, 0xfa, 0xcd, 0x35, 0xfa, 0xe1,
0xf9, 0x1b, 0x21, 0xff, 0xfb, 0x3e, 0xa0, 0x32,
0xfc, 0xfb, 0xc1, 0x71, 0x70, 0xc1, 0x71, 0x1d,
0xc2, 0x0c, 0xfa, 0x15, 0xf2, 0x0c, 0xfa, 0x70,
0x3a, 0xfc, 0xfb, 0x1f, 0xda, 0x18, 0xfa, 0x17,
0xe6, 0xdf, 0xca, 0x26, 0xfa, 0x37, 0x2a, 0xca,
0xfe, 0xf9, 0xf5, 0x3a, 0xf6, 0xfe, 0xee, 0x10,
0x32, 0xfa, 0xfb, 0xf1, 0xc9, 0xd1, 0x21, 0x00,
0x00, 0x39, 0x31, 0xcc, 0xfe, 0xe5, 0x2a, 0xe7,
0xfe, 0xe5, 0xd5, 0x21, 0x26, 0xfa, 0xe5, 0xcd,
0xef, 0xfa, 0xd8, 0x3a, 0xfd, 0xfb, 0x3c, 0xcc,
0x7b, 0xf9, 0xda, 0x9f, 0xfa, 0x21, 0xfd, 0xfb,
0x3a, 0xf9, 0xfe, 0xbe, 0x23, 0x23, 0x77, 0x79,
0x32, 0xfa, 0xfb, 0xca, 0x7d, 0xfa, 0xaf, 0x32,
0xe9, 0xfe, 0x3a, 0xfa, 0xfb, 0xe6, 0x08, 0x7f,
0x1f, 0x1f, 0xc6, 0x18, 0x21, 0x00, 0x00, 0xcd,
0x6c, 0xfb, 0xda, 0x9f, 0xfa, 0x3a, 0xe9, 0xfe,
0xb7, 0xc2, 0xc9, 0xfa, 0x06, 0x02, 0x3e, 0x1d,
0xcd, 0x67, 0xfb, 0xe6, 0x99, 0xca, 0xa5, 0xfa,
0x3a, 0xf6, 0xfe, 0xee, 0x01, 0x32, 0xf6, 0xfe,
0x32, 0xfa, 0xfb, 0x05, 0xc2, 0x86, 0xfa, 0xcd,
0x6f, 0xf9, 0xc3, 0x9e, 0xfb, 0x06, 0x0a, 0x11,
0xff, 0xfb, 0x21, 0xfa, 0xfe, 0x3e, 0xc4, 0x32,
0xfc, 0xfb, 0x1a, 0x77, 0x2c, 0xc2, 0xb2, 0xfa,
0x21, 0xfc, 0xfb, 0xcd, 0x7e, 0xfb, 0xb7, 0xca,
0xc9, 0xfa, 0x05, 0xc2, 0xa7, 0xfa, 0xc3, 0x9f,
0xfa, 0x3a, 0xfd, 0xfe, 0x4f, 0x06, 0x00, 0x21,
0xeb, 0xfa, 0x09, 0x3a, 0xf8, 0xfe, 0x47, 0x86,
0x3e, 0x10, 0xd8, 0xe1, 0x78, 0x32, 0xfe, 0xfb,
0x21, 0x40, 0x00, 0x0d, 0x54, 0x5d, 0xf8, 0x29,
0xc3, 0xe3, 0xfa, 0xe5, 0xe5, 0xf0, 0xf7, 0x21,
0xeb, 0xfe, 0x4e, 0x23, 0x5e, 0x71, 0x23, 0x7b,
0xb9, 0x7e, 0x36, 0x04, 0x23, 0xca, 0x25, 0xfb,
0xe5, 0x16, 0x00, 0x42, 0x19, 0x19, 0x3a, 0xf6,
0xfe, 0x77, 0x23, 0x11, 0xfd, 0xfb, 0x1a, 0x77,
0xe1, 0x09, 0x09, 0x7e, 0x32, 0xf6, 0xfe, 0x23,
0x7e, 0x12, 0x3e, 0x7f, 0x07, 0x0d, 0xf2, 0x1c,
0xfb, 0x32, 0xea, 0xfe, 0xaf, 0x21, 0xfa, 0xfb,
0xa6, 0x32, 0xe9, 0xfe, 0xf5, 0x3a, 0xea, 0xfe,
0x4f, 0x3a, 0xf7, 0xfe, 0x2f, 0xa1, 0x32, 0xf9,
0xfb, 0x3a, 0xf6, 0xfe, 0x4f, 0x3a, 0xf9, 0xfe,
0xd6, 0x01, 0x9f, 0x3d, 0x2f, 0xb1, 0x77, 0xee,
0x02, 0x4f, 0xf1, 0xc2, 0x59, 0xfb, 0xe5, 0x2a,
0xe5, 0xfe, 0x2b, 0x7c, 0xb5, 0xc2, 0x52, 0xfb,
0xe1, 0x7e, 0xe6, 0x20, 0xc8, 0x3a, 0xf6, 0xfe,
0xf6, 0x18, 0x77, 0x3e, 0x80, 0x37, 0xc9, 0x2a,
0xe5, 0xfe, 0x29, 0x29, 0xeb, 0x21, 0xfc, 0xfb,
0xc3, 0x76, 0xfb, 0xc3, 0xef, 0xfa, 0x00, 0x00,
0x77, 0x7e, 0x1f, 0xd2, 0x79, 0xfb, 0x7e, 0x1f,
0x7e, 0xd0, 0x1b, 0x7a, 0xb3, 0xc2, 0x7e, 0xfb,
0xe5, 0x23, 0x56, 0x3a, 0xf6, 0xfe, 0xee, 0x04,
0x32, 0xfa, 0xfb, 0xee, 0x04, 0xe3, 0x32, 0xfa,
0xfb, 0x36, 0xd0, 0xe3, 0x72, 0xe1, 0x3e, 0x11,
0x37, 0xc9, 0x11, 0x00, 0x00, 0x21, 0xfa, 0xfb,
0x0e, 0x10, 0x7e, 0xa1, 0xc2, 0xaa, 0xfb, 0x7e,
0xa1, 0xca, 0xaf, 0xfb, 0x13, 0xe3, 0xe3, 0xe3,
0xe3, 0x7e, 0xa1, 0xc2, 0xb4, 0xfb, 0xc9, 0x79,
0xe6, 0x01, 0x2f, 0x47, 0x21, 0xeb, 0xfe, 0x5e,
0x16, 0x00, 0x23, 0x7e, 0xab, 0xf5, 0x23, 0x23,
0x19, 0x19, 0x7e, 0xf6, 0x01, 0xa0, 0x77, 0xf1,
0xc0, 0x7e, 0x32, 0xf6, 0xfe, 0xc9, 0x79, 0xe6,
0x01, 0x17, 0x17, 0x17, 0x17, 0x32, 0xf7, 0xfe,
0xc9, 0x21, 0x00, 0x00, 0x2b, 0x7c, 0xb5, 0xe3,
0xe3, 0xc2, 0xec, 0xfb, 0xc9, 0xf8, 0x00, 0xc3,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
static uint8 dj2d_promb_e000[DJ2D_PROM_SIZE] = {
0xc3, 0x69, 0xe0, 0xc3, 0xe9, 0xe0, 0xc3, 0xda, 0xc3, 0x69, 0xe0, 0xc3, 0xe9, 0xe0, 0xc3, 0xda,
0xe0, 0xc3, 0x5a, 0xe1, 0xc3, 0x8b, 0xe1, 0xc3, 0xe0, 0xc3, 0x5a, 0xe1, 0xc3, 0x8b, 0xe1, 0xc3,
0x81, 0xe1, 0xc3, 0x43, 0xe1, 0xc3, 0xdd, 0xe1, 0x81, 0xe1, 0xc3, 0x43, 0xe1, 0xc3, 0xdd, 0xe1,
@ -226,7 +488,7 @@ static uint8 dj2d_prom_e000[DJ2D_PROM_SIZE] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
}; };
static uint8 dj2d_prom_f800[DJ2D_PROM_SIZE] = { static uint8 dj2d_promb_f800[DJ2D_PROM_SIZE] = {
0xc3, 0x69, 0xf8, 0xc3, 0xe9, 0xf8, 0xc3, 0xda, 0xc3, 0x69, 0xf8, 0xc3, 0xe9, 0xf8, 0xc3, 0xda,
0xf8, 0xc3, 0x5a, 0xf9, 0xc3, 0x8b, 0xf9, 0xc3, 0xf8, 0xc3, 0x5a, 0xf9, 0xc3, 0x8b, 0xf9, 0xc3,
0x81, 0xf9, 0xc3, 0x43, 0xf9, 0xc3, 0xdd, 0xf9, 0x81, 0xf9, 0xc3, 0x43, 0xf9, 0xc3, 0xdd, 0xf9,
@ -358,7 +620,7 @@ static uint8 dj2d_prom_f800[DJ2D_PROM_SIZE] = {
}; };
/* PROM selection (default E000) */ /* PROM selection (default E000) */
uint8 *dj2d_prom = dj2d_prom_e000; uint8 *dj2d_prom = dj2d_promb_e000;
/* /*
** Western Digital WD1791 Registers and Interface Controls ** Western Digital WD1791 Registers and Interface Controls
@ -396,6 +658,7 @@ typedef struct {
uint8 status; /* Disk Jockey status register */ uint8 status; /* Disk Jockey status register */
uint8 control; /* Disk Jockey control register */ uint8 control; /* Disk Jockey control register */
uint8 function; /* Disk Jockey function register */ uint8 function; /* Disk Jockey function register */
uint8 led; /* Disk Jockey LED status */
} DJ2D_REG; } DJ2D_REG;
#define WD1791_STAT_NOTREADY 0x80 #define WD1791_STAT_NOTREADY 0x80
@ -436,20 +699,22 @@ typedef struct {
int32 conn; /* Connected Status */ int32 conn; /* Connected Status */
TMLN *tmln; /* TMLN pointer */ TMLN *tmln; /* TMLN pointer */
TMXR *tmxr; /* TMXR pointer */ TMXR *tmxr; /* TMXR pointer */
uint8 modelB; /* Model B? */
uint8 promEnabled; /* PROM is enabled */
uint32 ticks; /* Timer ticks */ uint32 ticks; /* Timer ticks */
uint32 sioticks; /* SIO Timer ticks */ uint32 sioticks; /* SIO Timer ticks */
uint16 headTimeout; /* Head unload timer tick value */ uint16 headTimeout; /* Head unload timer tick value */
uint16 indexTimeout; /* Index timer tick value */ uint16 indexTimeout; /* Index timer tick value */
uint16 busyTimeout; /* Busy timer tick value */ uint16 busyTimeout; /* Busy timer tick value */
uint8 promEnabled; /* PROM is enabled */
uint8 writeProtect; /* Write Protect is enabled */ uint8 writeProtect; /* Write Protect is enabled */
uint8 currentDrive; /* currently selected drive */ uint8 currentDrive; /* currently selected drive */
uint8 secsPerTrack; /* sectors per track */ uint8 secsPerTrack; /* sectors per track */
uint16 bytesPerTrack; /* bytes per track */ uint16 bytesPerTrack; /* bytes per track */
uint8 sides2[DJ2D_MAX_DRIVES]; /* double sided flag */
uint8 headLoaded[DJ2D_MAX_DRIVES]; /* Head Loaded */ uint8 headLoaded[DJ2D_MAX_DRIVES]; /* Head Loaded */
uint8 format[DJ2D_MAX_DRIVES]; /* Attached disk format */ uint8 format[DJ2D_MAX_DRIVES]; /* Attached disk format */
uint16 sectorLen[DJ2D_MAX_DRIVES]; /* Attached disk sector length */ uint16 sectorLen[DJ2D_MAX_DRIVES]; /* Attached disk sector length */
uint8 side[DJ2D_MAX_DRIVES]; /* side 0 or side 1 */ uint8 side[DJ2D_MAX_DRIVES]; /* side 0 or 1 */
WD1791_REG WD1791; /* WD1791 Registers and Data */ WD1791_REG WD1791; /* WD1791 Registers and Data */
DJ2D_REG DJ2D; /* DJ2D Registers and Data */ DJ2D_REG DJ2D; /* DJ2D Registers and Data */
UNIT *uptr[DJ2D_UNITS]; UNIT *uptr[DJ2D_UNITS];
@ -460,7 +725,9 @@ static DJ2D_INFO dj2d_info_data = {
DJ2D_MEM_BASE, DJ2D_MEM_SIZE, DJ2D_MEM_BASE, DJ2D_MEM_SIZE,
DJ2D_PROM_BASE, DJ2D_PROM_SIZE, DJ2D_PROM_BASE, DJ2D_PROM_SIZE,
0, dj2d_tmln, &dj2d_tmxr, 0, dj2d_tmln, &dj2d_tmxr,
0, 0, 0 TRUE, TRUE,
0, 0, 0, 0, 0, 0, 0, 0, 0,
{0, 0, 0, 0}
}; };
static DJ2D_INFO *dj2d_info = &dj2d_info_data; static DJ2D_INFO *dj2d_info = &dj2d_info_data;
@ -480,6 +747,14 @@ static uint8 sdata[1024]; /* Sector data buffer */
#define DJ2D_REG_1791_SECTOR 0x06 /* Register 6 */ #define DJ2D_REG_1791_SECTOR 0x06 /* Register 6 */
#define DJ2D_REG_1791_DATA 0x07 /* Register 7 */ #define DJ2D_REG_1791_DATA 0x07 /* Register 7 */
/* DJ2D MODEL A/B */
#define DJ2D_STAT_PE 0x01 /* Parity Error */
#define DJ2D_STAT_OE 0x02 /* Overrun Error */
#define DJ2D_STAT_DR 0x04 /* Data Ready */
#define DJ2D_STAT_TBRE 0x08 /* TBRE */
#define DJ2D_STAT_FE 0x10 /* Framing Error */
/* DJ2D MODEL B */
#define DJ2D_STAT_HEAD 0x01 /* HEAD */ #define DJ2D_STAT_HEAD 0x01 /* HEAD */
#define DJ2D_STAT_DATARQ 0x02 /* DATARQ */ #define DJ2D_STAT_DATARQ 0x02 /* DATARQ */
#define DJ2D_STAT_INTRQ 0x04 /* INTRQ */ #define DJ2D_STAT_INTRQ 0x04 /* INTRQ */
@ -487,12 +762,6 @@ static uint8 sdata[1024]; /* Sector data buffer */
#define DJ2D_STAT_INDEX 0x10 /* INDEX */ #define DJ2D_STAT_INDEX 0x10 /* INDEX */
#define DJ2D_STAT_READY 0x80 /* READY */ #define DJ2D_STAT_READY 0x80 /* READY */
#define DJ2D_STAT_PE 0x01 /* Parity Error */
#define DJ2D_STAT_OE 0x02 /* Overrun Error */
#define DJ2D_STAT_DR 0x04 /* Data Ready */
#define DJ2D_STAT_TBRE 0x08 /* TBRE */
#define DJ2D_STAT_FE 0x10 /* Framing Error */
#define DJ2D_CTRL_DSEL 0x0f /* Drive Select Mask */ #define DJ2D_CTRL_DSEL 0x0f /* Drive Select Mask */
#define DJ2D_CTRL_SIDE0 0x10 /* Side 0 Select */ #define DJ2D_CTRL_SIDE0 0x10 /* Side 0 Select */
#define DJ2D_CTRL_INTDSBL 0x20 /* Interrupt Disable */ #define DJ2D_CTRL_INTDSBL 0x20 /* Interrupt Disable */
@ -504,9 +773,28 @@ static uint8 sdata[1024]; /* Sector data buffer */
#define DJ2D_FUNC_HDLOAD 0x00 /* Head Loaded */ #define DJ2D_FUNC_HDLOAD 0x00 /* Head Loaded */
#define DJ2D_FUNC_HDUNLD 0x06 /* Head Unloaded */ #define DJ2D_FUNC_HDUNLD 0x06 /* Head Unloaded */
#define DJ2D_FUNC_LEDOFF 0x08 /* LED Off */ #define DJ2D_FUNC_LEDOFF 0x08 /* LED Off */
#define DJ2D_FUNC_VCOFF 0x20 /* VCO Off */
/* DJ2D Commands */ /* DJ2D MODEL A */
#define DJ2DA_STAT_INTRQ 0x01 /* INTRQ */
#define DJ2DA_STAT_DATARQ 0x02 /* DATARQ */
#define DJ2DA_STAT_HEAD 0x04 /* HEAD */
#define DJ2DA_STAT_N2SIDED 0x08 /* NOT 2 SIDED */
#define DJ2DA_STAT_NINDEX 0x10 /* NOT INDEX */
#define DJ2DA_STAT_NREADY 0x20 /* NOT READY */
#define DJ2DA_CTRL_DSEL 0x0f /* Drive Select Mask */
#define DJ2DA_CTRL_SIDE0 0x10 /* Side 0 Select */
#define DJ2DA_CTRL_LEDOFF 0x20 /* LED Off */
#define DJ2DA_FUNC_SINGLE 0x01 /* Single Density */
#define DJ2DA_FUNC_AENBL 0x02 /* AENBL */
#define DJ2DA_FUNC_CLRFDC 0x04 /* Reset 1791 */
#define DJ2DA_FUNC_HDMASK 0x18 /* Head Mask */
#define DJ2DA_FUNC_HDLOAD 0x00 /* Head Loaded */
#define DJ2DA_FUNC_HDUNLD 0x18 /* Head Unloaded */
#define DJ2DA_FUNC_VCOFF 0x20 /* VCOFF */
/* WD1791 Commands */
#define WD1791_CMD_RESTORE 0x00 #define WD1791_CMD_RESTORE 0x00
#define WD1791_CMD_SEEK 0x10 #define WD1791_CMD_SEEK 0x10
#define WD1791_CMD_STEP 0x20 #define WD1791_CMD_STEP 0x20
@ -562,16 +850,21 @@ static t_stat dj2d_detach(UNIT *uptr);
static t_stat dj2d_boot(int32 unitno, DEVICE *dptr); static t_stat dj2d_boot(int32 unitno, DEVICE *dptr);
static t_stat dj2d_set_prombase(UNIT *uptr, int32 val, CONST char *cptr, void *desc); static t_stat dj2d_set_prombase(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
static t_stat dj2d_show_prombase(FILE *st, UNIT *uptr, int32 val, CONST void *desc); static t_stat dj2d_show_prombase(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
static t_stat dj2d_set_model(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
static t_stat dj2d_show_model(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
static t_stat dj2d_set_prom(UNIT *uptr, int32 val, CONST char *cptr, void *desc); static t_stat dj2d_set_prom(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
static t_stat dj2d_show_prom(FILE *st, UNIT *uptr, int32 val, CONST void *desc); static t_stat dj2d_show_prom(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
static t_stat dj2d_set_sides(UNIT *uptr, int32 val, CONST char *cptr, void *desc);
static t_stat dj2d_show_sides(FILE *st, UNIT *uptr, int32 val, CONST void *desc);
static t_stat dj2d_set_baud(UNIT *uptr, int32 value, const char *cptr, void *desc); static t_stat dj2d_set_baud(UNIT *uptr, int32 value, const char *cptr, void *desc);
static t_stat dj2d_show_baud(FILE *st, UNIT *uptr, int32 value, const void *desc); static t_stat dj2d_show_baud(FILE *st, UNIT *uptr, int32 value, const void *desc);
static t_stat dj2d_config_line(void); static t_stat dj2d_config_line(void);
static uint16 sector_len(uint8 drive, uint8 track); static uint16 sector_len(uint8 drive, uint8 track);
static uint32 secs_per_track(uint8 track); static uint32 secs_per_track(uint8 track);
static uint32 bytes_per_track(uint8 track); static uint32 bytes_per_track(uint8 track);
static uint32 calculate_dj2d_sec_offset(uint8 track, uint8 sector); static t_offset calculate_dj2d_sec_offset(uint8 track, uint8 sector);
static void DJ2D_HeadLoad(UNIT *uptr, WD1791_REG *pWD1791, uint8 load); static void DJ2D_HeadLoad(UNIT *uptr, WD1791_REG *pWD1791, uint8 load);
static void DJ2D_LED(DJ2D_REG *pDJ2D, int status);
static uint8 DJ2D_Read(uint32 Addr); static uint8 DJ2D_Read(uint32 Addr);
static uint8 DJ2D_Write(uint32 Addr, int32 data); static uint8 DJ2D_Write(uint32 Addr, int32 data);
static const char * DJ2D_CommandString(uint8 command); static const char * DJ2D_CommandString(uint8 command);
@ -625,6 +918,7 @@ static REG dj2d_reg[] = {
{ HRDATAD (UTXP, dj2d_info_data.DJ2D.uart_txp, 8, "UART TX data pending"), }, { HRDATAD (UTXP, dj2d_info_data.DJ2D.uart_txp, 8, "UART TX data pending"), },
{ HRDATAD (USTAT, dj2d_info_data.DJ2D.uart_status, 8, "UART status register"), }, { HRDATAD (USTAT, dj2d_info_data.DJ2D.uart_status, 8, "UART status register"), },
{ DRDATAD (BAUD, dj2d_info_data.DJ2D.uart_baud, 16, "UART baud rate"), }, { DRDATAD (BAUD, dj2d_info_data.DJ2D.uart_baud, 16, "UART baud rate"), },
{ FLDATAD (LED, dj2d_info_data.DJ2D.led, 0, "LED status"), },
{ NULL } { NULL }
}; };
@ -645,6 +939,10 @@ static MTAB dj2d_mod[] = {
&dj2d_set_prom, &dj2d_show_prom, NULL, "Set/Show PROM enabled/disabled status"}, &dj2d_set_prom, &dj2d_show_prom, NULL, "Set/Show PROM enabled/disabled status"},
{ MTAB_XTD|MTAB_VDV, 0, "PROMBASE", "PROMBASE", { MTAB_XTD|MTAB_VDV, 0, "PROMBASE", "PROMBASE",
&dj2d_set_prombase, &dj2d_show_prombase, NULL, "Sets PROM base address" }, &dj2d_set_prombase, &dj2d_show_prombase, NULL, "Sets PROM base address" },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "MODEL", "MODEL={A|B}",
&dj2d_set_model, &dj2d_show_model, NULL, "Set/Show the current controller model" },
{ MTAB_XTD|MTAB_VUN|MTAB_VALR, 0, "SIDES", "SIDES={1|2}",
&dj2d_set_sides, &dj2d_show_sides, NULL, "Set/Show the current drive sides" },
{ UNIT_DJ2D_WPROTECT, 0, "WRTENB", "WRTENB", NULL, NULL, NULL, { UNIT_DJ2D_WPROTECT, 0, "WRTENB", "WRTENB", NULL, NULL, NULL,
"Enables " DJ2D_SNAME "n for writing" }, "Enables " DJ2D_SNAME "n for writing" },
{ UNIT_DJ2D_WPROTECT, UNIT_DJ2D_WPROTECT, "WRTPROT", "WRTPROT", NULL, NULL, NULL, { UNIT_DJ2D_WPROTECT, UNIT_DJ2D_WPROTECT, "WRTPROT", "WRTPROT", NULL, NULL, NULL,
@ -744,6 +1042,7 @@ static t_stat dj2d_reset(DEVICE *dptr)
pInfo->DJ2D.uart_status = DJ2D_STAT_TBRE; pInfo->DJ2D.uart_status = DJ2D_STAT_TBRE;
pInfo->DJ2D.uart_txp = FALSE; pInfo->DJ2D.uart_txp = FALSE;
pInfo->DJ2D.uart_baud = DJ2D_BAUD; pInfo->DJ2D.uart_baud = DJ2D_BAUD;
pInfo->DJ2D.led = FALSE;
pInfo->WD1791.track = 0; pInfo->WD1791.track = 0;
pInfo->WD1791.sector = 1; pInfo->WD1791.sector = 1;
@ -931,9 +1230,17 @@ static t_stat dj2d_set_prombase(UNIT *uptr, int32 val, CONST char *cptr, void *d
} }
if (newba == 0xe000) { if (newba == 0xe000) {
dj2d_prom = dj2d_prom_e000; if (dj2d_info->modelB) {
dj2d_prom = dj2d_promb_e000;
} else { } else {
dj2d_prom = dj2d_prom_f800; dj2d_prom = dj2d_proma_e000;
}
} else {
if (dj2d_info->modelB) {
dj2d_prom = dj2d_promb_f800;
} else {
dj2d_prom = dj2d_proma_f800;
}
} }
return dj2d_reset(&dj2d_dev); return dj2d_reset(&dj2d_dev);
@ -962,6 +1269,77 @@ t_stat dj2d_show_prombase(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
return SCPE_OK; return SCPE_OK;
} }
static t_stat dj2d_set_model(UNIT *uptr, int32 val, CONST char *cptr, void *desc)
{
char base[5];
if (!cptr) return SCPE_IERR;
/* this assumes that the parameter has already been upcased */
if (!strcmp(cptr, "B")) {
dj2d_info->modelB = TRUE;
} else if (!strcmp(cptr, "A")) {
dj2d_info->modelB = FALSE;
} else {
return SCPE_ARG;
}
sprintf(base, "%04x", dj2d_info->prom_base);
dj2d_set_prombase(uptr, dj2d_info->prom_base, base, "PROMBASE");
return SCPE_OK;
}
static t_stat dj2d_show_model(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
{
fprintf(st, "MODEL=%s", (dj2d_info->modelB) ? "B" : "A");
return SCPE_OK;
}
static t_stat dj2d_set_sides(UNIT *uptr, int32 val, CONST char *cptr, void *desc)
{
int i;
if (!cptr) return SCPE_IERR;
for (i = 0; i < DJ2D_MAX_DRIVES; i++) {
if (dj2d_info->uptr[i] == uptr) {
break;
}
}
/* this assumes that the parameter has already been upcased */
if (i < DJ2D_MAX_DRIVES) {
if (!strcmp(cptr, "1")) {
dj2d_info->sides2[i] = FALSE;
} else if (!strcmp(cptr, "2")) {
dj2d_info->sides2[i] = TRUE;
} else {
return SCPE_ARG;
}
return SCPE_OK;
}
return SCPE_ARG;
}
static t_stat dj2d_show_sides(FILE *st, UNIT *uptr, int32 val, CONST void *desc)
{
int i;
for (i = 0; i < DJ2D_MAX_DRIVES; i++) {
if (dj2d_info->uptr[i] == uptr) {
fprintf(st, "SIDES=%d", (dj2d_info->sides2[i]) ? 2 : 1);
break;
}
}
return SCPE_OK;
}
/* Attach routine */ /* Attach routine */
static t_stat dj2d_attach(UNIT *uptr, CONST char *cptr) static t_stat dj2d_attach(UNIT *uptr, CONST char *cptr)
{ {
@ -1001,15 +1379,21 @@ static t_stat dj2d_attach(UNIT *uptr, CONST char *cptr)
/* Default is 1024 byte sectors */ /* Default is 1024 byte sectors */
dj2d_info->format[i] = FMT_1024; dj2d_info->format[i] = FMT_1024;
dj2d_info->sectorLen[i] = dj2d_sector_len[FMT_1024]; dj2d_info->sectorLen[i] = dj2d_sector_len[FMT_1024];
dj2d_info->sides2[i] = FALSE;
for (f = 0; f < FMT_UNKNOWN; f++) { for (f = 0; f < FMT_UNKNOWN; f++) {
if (uptr->capac == dj2d_image_size[f]) { if (uptr->capac == dj2d_image_size[f]) {
dj2d_info->format[i] = f; dj2d_info->format[i] = f;
dj2d_info->sectorLen[i] = dj2d_sector_len[f]; dj2d_info->sectorLen[i] = dj2d_sector_len[f];
dj2d_info->sides2[i] = FALSE;
} else if (uptr->capac == dj2d_2s_image_size[f]) {
dj2d_info->format[i] = f;
dj2d_info->sectorLen[i] = dj2d_sector_len[f];
dj2d_info->sides2[i] = TRUE;
} }
} }
sim_debug(DEBUG_MSG, &dj2d_dev, DJ2D_SNAME ": ATTACH drive=%d uptr->capac=%d format=%d sectorLen=%d\n", i, uptr->capac, dj2d_info->format[i], dj2d_info->sectorLen[i]); sim_debug(DEBUG_MSG, &dj2d_dev, DJ2D_SNAME ": ATTACH drive=%d uptr->capac=%d format=%d sectorLen=%d 2sided=%d\n", i, uptr->capac, dj2d_info->format[i], dj2d_info->sectorLen[i], dj2d_info->sides2[i]);
/* Default for new file is DSK */ /* Default for new file is DSK */
uptr->u3 = IMAGE_TYPE_DSK; uptr->u3 = IMAGE_TYPE_DSK;
@ -1176,7 +1560,11 @@ static void showdata(int32 isRead) {
sim_debug(isRead ? RD_DATA_DETAIL_MSG : WR_DATA_DETAIL_MSG, &dj2d_dev, "\n\t"); sim_debug(isRead ? RD_DATA_DETAIL_MSG : WR_DATA_DETAIL_MSG, &dj2d_dev, "\n\t");
} }
} }
sim_debug(RD_DATA_DETAIL_MSG|WR_DATA_DETAIL_MSG, &dj2d_dev, "\n"); if (isRead) {
sim_debug(RD_DATA_DETAIL_MSG, &dj2d_dev, "\n");
} else {
sim_debug(WR_DATA_DETAIL_MSG, &dj2d_dev, "\n");
}
} }
static uint16 sector_len(uint8 drive, uint8 track) static uint16 sector_len(uint8 drive, uint8 track)
@ -1214,9 +1602,9 @@ static uint32 bytes_per_track(uint8 track)
return dj2d_info->bytesPerTrack; return dj2d_info->bytesPerTrack;
} }
static uint32 calculate_dj2d_sec_offset(uint8 track, uint8 sector) static t_offset calculate_dj2d_sec_offset(uint8 track, uint8 sector)
{ {
uint32 offset; t_offset offset;
uint8 ds; uint8 ds;
uint8 format; uint8 format;
@ -1247,7 +1635,7 @@ static uint32 calculate_dj2d_sec_offset(uint8 track, uint8 sector)
*/ */
offset += (sector-1) * dj2d_sector_len[format]; offset += (sector-1) * dj2d_sector_len[format];
sim_debug(DEBUG_MSG, &dj2d_dev, DJ2D_SNAME ": OFFSET=%d drive=%d side=%d format=%d track=%03d sector=%03d\r\n", offset, dj2d_info->currentDrive, ds, dj2d_info->format[dj2d_info->currentDrive], track, sector); sim_debug(DEBUG_MSG, &dj2d_dev, DJ2D_SNAME ": OFFSET=%08llx drive=%d side=%d format=%d track=%03d sector=%03d\r\n", offset, dj2d_info->currentDrive, ds, dj2d_info->format[dj2d_info->currentDrive], track, sector);
return (offset); return (offset);
} }
@ -1278,6 +1666,15 @@ static void DJ2D_HeadLoad(UNIT *uptr, WD1791_REG *pWD1791, uint8 load)
dj2d_info->headLoaded[dj2d_info->currentDrive] = load; dj2d_info->headLoaded[dj2d_info->currentDrive] = load;
} }
static void DJ2D_LED(DJ2D_REG *pDJ2D, int status)
{
if (pDJ2D->led != status) {
sim_debug(STATUS_MSG, &dj2d_dev, DJ2D_SNAME ": LED %s.\n", (status) ? "ON" : "OFF");
}
pDJ2D->led = status;
}
static uint8 DJ2D_Read(uint32 Addr) static uint8 DJ2D_Read(uint32 Addr)
{ {
uint8 cData; uint8 cData;
@ -1306,12 +1703,21 @@ static uint8 DJ2D_Read(uint32 Addr)
break; break;
case DJ2D_REG_2D_STATUS: case DJ2D_REG_2D_STATUS:
if (dj2d_info->modelB) {
cData = (pWD1791->intrq) ? DJ2D_STAT_INTRQ : 0; cData = (pWD1791->intrq) ? DJ2D_STAT_INTRQ : 0;
cData |= (pWD1791->drq) ? DJ2D_STAT_DATARQ : 0; cData |= (pWD1791->drq) ? DJ2D_STAT_DATARQ : 0;
cData |= (pWD1791->index) ? DJ2D_STAT_INDEX : 0; cData |= (pWD1791->index) ? DJ2D_STAT_INDEX : 0;
cData |= (dj2d_info->headLoaded[dj2d_info->currentDrive]) ? DJ2D_STAT_HEAD : 0; cData |= (dj2d_info->headLoaded[dj2d_info->currentDrive]) ? DJ2D_STAT_HEAD : 0;
cData |= (pWD1791->status & WD1791_STAT_NOTREADY) ? 0 : DJ2D_STAT_READY; cData |= (pWD1791->status & WD1791_STAT_NOTREADY) ? 0 : DJ2D_STAT_READY;
cData |= DJ2D_STAT_N2SIDED; cData |= (dj2d_info->sides2[dj2d_info->currentDrive]) ? 0 : DJ2D_STAT_N2SIDED;
} else {
cData = (pWD1791->intrq) ? DJ2DA_STAT_INTRQ : 0;
cData |= (pWD1791->drq) ? DJ2DA_STAT_DATARQ : 0;
cData |= (pWD1791->index) ? 0 : DJ2DA_STAT_NINDEX;
cData |= (dj2d_info->headLoaded[dj2d_info->currentDrive]) ? DJ2DA_STAT_HEAD : 0;
cData |= (pWD1791->status & WD1791_STAT_NOTREADY) ? DJ2DA_STAT_NREADY : 0;
cData |= (dj2d_info->sides2[dj2d_info->currentDrive]) ? 0 : DJ2D_STAT_N2SIDED;
}
pDJ2D->status = cData; pDJ2D->status = cData;
break; break;
@ -1419,6 +1825,7 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
case DJ2D_REG_2D_FUNCTION: case DJ2D_REG_2D_FUNCTION:
pDJ2D->function = Data; pDJ2D->function = Data;
if (dj2d_info->modelB) {
switch (Data & DJ2D_FUNC_HDMASK) { switch (Data & DJ2D_FUNC_HDMASK) {
case DJ2D_FUNC_HDLOAD: case DJ2D_FUNC_HDLOAD:
DJ2D_HeadLoad(uptr, pWD1791, TRUE); DJ2D_HeadLoad(uptr, pWD1791, TRUE);
@ -1432,6 +1839,23 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
break; break;
} }
DJ2D_LED(pDJ2D, !(Data & DJ2D_FUNC_LEDOFF));
} else {
switch (Data & DJ2DA_FUNC_HDMASK) {
case DJ2DA_FUNC_HDLOAD:
DJ2D_HeadLoad(uptr, pWD1791, TRUE);
break;
case DJ2DA_FUNC_HDUNLD:
DJ2D_HeadLoad(uptr, pWD1791, FALSE);
break;
default:
break;
}
}
break; break;
case DJ2D_REG_1791_DATA: case DJ2D_REG_1791_DATA:
@ -1479,6 +1903,8 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
if (pWD1791->dataCount == sector_len(driveNum, pWD1791->track)) { if (pWD1791->dataCount == sector_len(driveNum, pWD1791->track)) {
pWD1791->status &= ~WD1791_STAT_WRITEFAULT; /* Clear Status Bit */ pWD1791->status &= ~WD1791_STAT_WRITEFAULT; /* Clear Status Bit */
showdata(FALSE);
rtn = DJ2D_WriteSector(uptr, pWD1791->track, pWD1791->sector, sdata); rtn = DJ2D_WriteSector(uptr, pWD1791->track, pWD1791->sector, sdata);
if (rtn != sector_len(driveNum, pWD1791->track)) { if (rtn != sector_len(driveNum, pWD1791->track)) {
@ -1489,17 +1915,17 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
sim_debug(DEBUG_MSG, &dj2d_dev, DJ2D_SNAME ": WRITE TRACK drive=%d track=%03d sector=%03d trkcount=%d datacount=%d data=%02X status=%02X\n", driveNum, pWD1791->track, pWD1791->sector, pWD1791->trkCount, pWD1791->dataCount, pWD1791->data, pWD1791->status); sim_debug(DEBUG_MSG, &dj2d_dev, DJ2D_SNAME ": WRITE TRACK drive=%d track=%03d sector=%03d trkcount=%d datacount=%d data=%02X status=%02X\n", driveNum, pWD1791->track, pWD1791->sector, pWD1791->trkCount, pWD1791->dataCount, pWD1791->data, pWD1791->status);
pWD1791->dataCount = 0; pWD1791->dataCount = 0;
pWD1791->idAddrMrk = 0; pWD1791->idAddrMrk = FALSE;
pWD1791->dataAddrMrk = 0; pWD1791->dataAddrMrk = FALSE;
if (pWD1791->sector < secs_per_track(pWD1791->track)) { if (pWD1791->sector < secs_per_track(pWD1791->track)) {
pWD1791->sector++; pWD1791->sector++;
} }
} }
} else if (pWD1791->data == 0xFE) { } else if (pWD1791->data == 0xFE) {
pWD1791->idAddrMrk = 1; pWD1791->idAddrMrk = TRUE;
} else if (pWD1791->data == 0xFB) { } else if (pWD1791->data == 0xFB) {
pWD1791->dataAddrMrk = 1; pWD1791->dataAddrMrk = TRUE;
} }
/* /*
@ -1513,12 +1939,6 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
pWD1791->intrq = TRUE; pWD1791->intrq = TRUE;
pWD1791->writeTrkActive = FALSE; pWD1791->writeTrkActive = FALSE;
/*
** Last track, truncate file size in case it shrank
*/
if (pWD1791->track == 76) {
sim_set_fsize(uptr->fileref, (t_addr)sim_ftell(uptr->fileref));
}
sim_debug(WR_DATA_MSG, &dj2d_dev, DJ2D_SNAME ": WRITE TRACK COMPLETE track=%03d sector=%03d trkcount=%d datacount=%d data=%02X status=%02X\n", pWD1791->track, pWD1791->sector, pWD1791->trkCount, pWD1791->dataCount, pWD1791->data, pWD1791->status); sim_debug(WR_DATA_MSG, &dj2d_dev, DJ2D_SNAME ": WRITE TRACK COMPLETE track=%03d sector=%03d trkcount=%d datacount=%d data=%02X status=%02X\n", pWD1791->track, pWD1791->sector, pWD1791->trkCount, pWD1791->dataCount, pWD1791->data, pWD1791->status);
} }
@ -1555,7 +1975,11 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
} }
/* Side */ /* Side */
if (dj2d_info->sides2[cData]) {
dj2d_info->side[cData] = (Data & DJ2D_CTRL_SIDE0) == 0x00; dj2d_info->side[cData] = (Data & DJ2D_CTRL_SIDE0) == 0x00;
} else {
dj2d_info->side[cData] = FALSE;
}
if (dj2d_info->currentDrive != cData) { if (dj2d_info->currentDrive != cData) {
sim_debug(STATUS_MSG, &dj2d_dev, DJ2D_SNAME ": Current drive now %d side %d\n", cData, dj2d_info->side[cData]); sim_debug(STATUS_MSG, &dj2d_dev, DJ2D_SNAME ": Current drive now %d side %d\n", cData, dj2d_info->side[cData]);
@ -1563,6 +1987,26 @@ static uint8 DJ2D_Write(uint32 Addr, int32 Data)
dj2d_info->currentDrive = cData; dj2d_info->currentDrive = cData;
if (dj2d_info->modelB) {
if (Data & DJ2D_CTRL_RESET) {
/* Reset 1791 */
pWD1791->status = 0x00;
pWD1791->track = 0;
pWD1791->dataCount = 0;
pWD1791->trkCount = 0;
pWD1791->readActive = FALSE;
pWD1791->readTrkActive = FALSE;
pWD1791->writeActive = FALSE;
pWD1791->writeTrkActive = FALSE;
pWD1791->addrActive = FALSE;
pWD1791->dataAddrMrk = FALSE;
pWD1791->idAddrMrk = FALSE;
pWD1791->drq = FALSE;
pWD1791->intrq = FALSE;
}
} else {
DJ2D_LED(pDJ2D, !(Data & DJ2DA_CTRL_LEDOFF));
}
break; break;
default: default:
@ -1587,7 +2031,7 @@ static uint32 DJ2D_ReadSector(UNIT *uptr, uint8 track, uint8 sector, uint8 *buff
return 0; return 0;
} }
sec_offset = calculate_dj2d_sec_offset(track, sector); sec_offset = (uint32)calculate_dj2d_sec_offset(track, sector);
len = sector_len(dj2d_info->currentDrive, track); len = sector_len(dj2d_info->currentDrive, track);
@ -1605,7 +2049,7 @@ static uint32 DJ2D_ReadSector(UNIT *uptr, uint8 track, uint8 sector, uint8 *buff
static uint32 DJ2D_WriteSector(UNIT *uptr, uint8 track, uint8 sector, uint8 *buffer) static uint32 DJ2D_WriteSector(UNIT *uptr, uint8 track, uint8 sector, uint8 *buffer)
{ {
uint32 sec_offset; t_offset sec_offset;
uint32 len; uint32 len;
uint32 rtn = 0; uint32 rtn = 0;
@ -1618,15 +2062,15 @@ static uint32 DJ2D_WriteSector(UNIT *uptr, uint8 track, uint8 sector, uint8 *buf
len = sector_len(dj2d_info->currentDrive, track); len = sector_len(dj2d_info->currentDrive, track);
sim_debug(WR_DATA_MSG, &dj2d_dev, DJ2D_SNAME ": WRITESEC track %03d sector %03d at offset %04X len %d\n", track, sector, sec_offset, len); if (sim_fseek(uptr->fileref, (t_addr)sec_offset, SEEK_SET) != 0) {
if (sim_fseek(uptr->fileref, sec_offset, SEEK_SET) != 0) {
sim_debug(ERROR_MSG, &dj2d_dev, DJ2D_SNAME ": WRITESEC sim_fseek error.\n"); sim_debug(ERROR_MSG, &dj2d_dev, DJ2D_SNAME ": WRITESEC sim_fseek error.\n");
return 0; return 0;
} }
rtn = sim_fwrite(buffer, 1, len, uptr->fileref); rtn = sim_fwrite(buffer, 1, len, uptr->fileref);
sim_debug(WR_DATA_MSG, &dj2d_dev, DJ2D_SNAME ": WRITESEC track %03d sector %03d at offset %08llX len %d rtn=%d\n", track, sector, sec_offset, len, rtn);
return rtn; return rtn;
} }

2
AltairZ80/s100_hayes.c
View file

@ -538,7 +538,7 @@ static t_stat hayes_set_dtr(UNIT *uptr, int32 flag)
static int32 hayes_io(int32 addr, int32 io, int32 data) static int32 hayes_io(int32 addr, int32 io, int32 data)
{ {
int32 r; int32 r = 0;
addr &= 0xff; addr &= 0xff;
data &= 0xff; data &= 0xff;

5
AltairZ80/s100_hdc1001.c
View file

@ -348,6 +348,8 @@ static t_stat hdc1001_unit_set_geometry(UNIT* uptr, int32 value, CONST char* cpt
return SCPE_ARG; return SCPE_ARG;
result = sscanf(cptr, "C:%hd/H:%hd/S:%hd/N:%hd", &newCyls, &newHeads, &newSPT, &newSecLen); result = sscanf(cptr, "C:%hd/H:%hd/S:%hd/N:%hd", &newCyls, &newHeads, &newSPT, &newSecLen);
if (result != 4)
return SCPE_ARG;
/* Validate Cyl, Heads, Sector, Length are valid for the HDC-1001 */ /* Validate Cyl, Heads, Sector, Length are valid for the HDC-1001 */
if (newCyls < 1 || newCyls > HDC1001_MAX_CYLS) { if (newCyls < 1 || newCyls > HDC1001_MAX_CYLS) {
@ -624,7 +626,6 @@ static t_stat HDC1001_doCommand(void)
/* Fall through */ /* Fall through */
case HDC1001_CMD_READ_SECT: case HDC1001_CMD_READ_SECT:
{ {
uint32 track_len;
uint32 xfr_len; uint32 xfr_len;
uint32 file_offset; uint32 file_offset;
uint8 rwopts; /* Options specified in the command: DMA, Multi-sector, long. */ uint8 rwopts; /* Options specified in the command: DMA, Multi-sector, long. */
@ -632,8 +633,6 @@ static t_stat HDC1001_doCommand(void)
/* Abort the read/write operation if C/H/S/N is not valid. */ /* Abort the read/write operation if C/H/S/N is not valid. */
if (HDC1001_Validate_CHSN(pDrive) != SCPE_OK) break; if (HDC1001_Validate_CHSN(pDrive) != SCPE_OK) break;
track_len = pDrive->nsectors * pDrive->sectsize;
/* Calculate file offset */ /* Calculate file offset */
file_offset = (pDrive->cur_cyl * pDrive->nheads * pDrive->nsectors); /* Full cylinders */ file_offset = (pDrive->cur_cyl * pDrive->nheads * pDrive->nsectors); /* Full cylinders */
file_offset += (pDrive->cur_head * pDrive->nsectors); /* Add full heads */ file_offset += (pDrive->cur_head * pDrive->nsectors); /* Add full heads */

4
AltairZ80/s100_icom.c
View file

@ -1040,7 +1040,6 @@ static uint8 ICOM_Read(uint32 Addr)
ICOM_REG *pICOM; ICOM_REG *pICOM;
UNIT *uptr; UNIT *uptr;
cData = 0;
driveNum = icom_info->currentDrive; driveNum = icom_info->currentDrive;
uptr = icom_info->uptr[driveNum]; uptr = icom_info->uptr[driveNum];
pICOM = &icom_info->ICOM; pICOM = &icom_info->ICOM;
@ -1250,7 +1249,6 @@ static uint8 ICOM_Command(UNIT *uptr, ICOM_REG *pICOM, int32 Data)
{ {
uint8 cData; uint8 cData;
uint8 newTrack; uint8 newTrack;
uint8 drive;
int32 rtn; int32 rtn;
cData = 0; cData = 0;
@ -1261,8 +1259,6 @@ static uint8 ICOM_Command(UNIT *uptr, ICOM_REG *pICOM, int32 Data)
pICOM->command = Data; pICOM->command = Data;
drive = icom_info->currentDrive;
switch(pICOM->command) { switch(pICOM->command) {
case ICOM_CMD_STATUS: case ICOM_CMD_STATUS:
pICOM->rData = pICOM->status; pICOM->rData = pICOM->status;

2
AltairZ80/s100_pmmi.c
View file

@ -582,7 +582,7 @@ static t_stat pmmi_config_line(UNIT *uptr)
static int32 pmmi_io(int32 addr, int32 io, int32 data) static int32 pmmi_io(int32 addr, int32 io, int32 data)
{ {
int32 r; int32 r = 0;
addr &= 0xff; addr &= 0xff;
data &= 0xff; data &= 0xff;

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doc/altairz80_doc.pdf
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