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/*************************************************************************
* *
* $Id: s100_adcs6.c 1970 2008-06-26 06:01:27Z hharte $ *
* *
* Copyright (c) 2007-2008 Howard M. Harte. *
* http://www.hartetec.com *
* *
* Permission is hereby granted, free of charge, to any person obtaining *
* a copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to *
* the following conditions: *
* *
* The above copyright notice and this permission notice shall be *
* included in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND *
* NONINFRINGEMENT. IN NO EVENT SHALL HOWARD M. HARTE BE LIABLE FOR ANY *
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, *
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE *
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name of Howard M. Harte shall *
* not be used in advertising or otherwise to promote the sale, use or *
* other dealings in this Software without prior written authorization *
* Howard M. Harte. *
* *
* SIMH Interface based on altairz80_hdsk.c, by Peter Schorn. *
* *
* Module Description: *
* Advanced Digital Corporation (ADC) Super-Six CPU Board *
* module for SIMH. *
* *
* This module is a wrapper around the wd179x FDC module, and adds the *
* ADC-specific registers as well as the Digitex Monitor Boot ROM. *
* *
* Environment: *
* User mode only *
* *
*************************************************************************/
/*#define DBG_MSG */
#define DBG_MSG
#include "altairz80_defs.h"
#if defined (_WIN32)
#include <windows.h>
#endif
#include "sim_defs.h" /* simulator definitions */
#include "wd179x.h"
#ifdef DBG_MSG
#define DBG_PRINT(args) printf args
#else
#define DBG_PRINT(args)
#endif
/* Debug flags */
#define ERROR_MSG (1 << 0)
#define SEEK_MSG (1 << 1)
#define CMD_MSG (1 << 2)
#define RD_DATA_MSG (1 << 3)
#define WR_DATA_MSG (1 << 4)
#define STATUS_MSG (1 << 5)
#define DRIVE_MSG (1 << 6)
#define VERBOSE_MSG (1 << 7)
#define IRQ_MSG (1 << 8)
#define DMA_MSG (1 << 9)
#define ADCS6_MAX_DRIVES 4
#define ADCS6_ROM_SIZE (2 * 1024)
#define ADCS6_ADDR_MASK (ADCS6_ROM_SIZE - 1)
typedef struct {
PNP_INFO pnp; /* Plug and Play */
uint32 dma_addr; /* DMA Transfer Address */
uint8 rom_disabled; /* TRUE if ROM has been disabled */
uint8 head_sel;
uint8 autowait;
uint8 rtc;
uint8 imask; /* Interrupt Mask Register */
uint8 ipend; /* Interrupt Pending Register */
uint8 s100_addr_u; /* A23:16 of S-100 bus */
} ADCS6_INFO;
extern WD179X_INFO_PUB *wd179x_info;
static ADCS6_INFO adcs6_info_data = { { 0xF000, ADCS6_ROM_SIZE, 0x3, 2 } };
static ADCS6_INFO *adcs6_info = &adcs6_info_data;
extern t_stat set_membase(UNIT *uptr, int32 val, char *cptr, void *desc);
extern t_stat show_membase(FILE *st, UNIT *uptr, int32 val, void *desc);
extern t_stat set_iobase(UNIT *uptr, int32 val, char *cptr, void *desc);
extern t_stat show_iobase(FILE *st, UNIT *uptr, int32 val, void *desc);
extern uint32 sim_map_resource(uint32 baseaddr, uint32 size, uint32 resource_type,
int32 (*routine)(const int32, const int32, const int32), uint8 unmap);
static t_stat adcs6_svc (UNIT *uptr);
extern REG *sim_PC;
extern uint32 PCX; /* external view of PC */
#define UNIT_V_ADCS6_WLK (UNIT_V_UF + 0) /* write locked */
#define UNIT_ADCS6_WLK (1 << UNIT_V_ADCS6_WLK)
#define UNIT_V_ADCS6_VERBOSE (UNIT_V_UF + 1) /* verbose mode, i.e. show error messages */
#define UNIT_ADCS6_VERBOSE (1 << UNIT_V_ADCS6_VERBOSE)
#define UNIT_V_ADCS6_ROM (UNIT_V_UF + 2) /* boot ROM enabled */
#define UNIT_ADCS6_ROM (1 << UNIT_V_ADCS6_ROM)
#define ADCS6_CAPACITY (77*2*16*256) /* Default Micropolis Disk Capacity */
#define MOTOR_TO_LIMIT 128
static t_stat adcs6_reset(DEVICE *adcs6_dev);
static t_stat adcs6_boot(int32 unitno, DEVICE *dptr);
static t_stat adcs6_attach(UNIT *uptr, char *cptr);
static t_stat adcs6_detach(UNIT *uptr);
static int32 adcs6_dma(const int32 port, const int32 io, const int32 data);
static int32 adcs6_timer(const int32 port, const int32 io, const int32 data);
static int32 adcs6_control(const int32 port, const int32 io, const int32 data);
static int32 adcs6_banksel(const int32 port, const int32 io, const int32 data);
static int32 adcs6rom(const int32 port, const int32 io, const int32 data);
static int32 dipswitch = 0x00; /* 5-position DIP switch on 64FDC card */
/* Disk Control/Flags Register, 0x34 (IN) */
#define ADCS6_FLAG_DRQ (1 << 7) /* DRQ (All controllers) */
#define ADCS6_FLAG_BOOT (1 << 6) /* boot# jumper (active low) (All controllers) */
#define ADCS6_FLAG_SEL_REQ (1 << 5) /* Head Load (4FDC, 16FDC) / Select Request (64FDC) */
#define ADCS6_FLAG_INH_INIT (1 << 4) /* Unassigned (4FDC) / Inhibit_Init# (16FDC, 64FDC) */
#define ADCS6_FLAG_MTRON (1 << 3) /* Unassigned (4FDC) / Motor On (16FDC, 64FDC) */
#define ADCS6_FLAG_MTO (1 << 2) /* Unassigned (4FDC) / Motor Timeout (16FDC, 64FDC) */
#define ADCS6_FLAG_ATO (1 << 1) /* Unassigned (4FDC) / Autowait Timeout (16FDC, 64FDC) */
#define ADCS6_FLAG_EOJ (1 << 0) /* End of Job (INTRQ) (All Controllers) (16FDC, 64FDC) */
/* Disk Control/Flags Register, 0x34 (OUT) */
#define ADCS6_CTRL_AUTOWAIT (1 << 7) /* Auto Wait Enable (All controllers) */
#define ADCS6_CTRL_DDENS (1 << 3) /* Unassigned (4FDC) / Double Density (16FDC, 64FDC) */
#define ADCS6_CTRL_HDS (1 << 2) /* Motor On (All controllers) */
#define ADCS6_CTRL_MINI (1 << 4) /* Mini (5.25") (All controllers) */
/* 64FDC Auxiliary Disk Command, 0x04 (OUT) */
#define ADCS6_AUX_RESERVED0 (1 << 0) /* Unused (All Controllers) */
#define ADCS6_AUX_CMD_SIDE (1 << 1) /* 16FDC, 64FDC: Side Select* Low=Side 1, High=Side 0. */
#define ADCS6_AUX_CTRL_OUT (1 << 2) /* Control Out* (All Controllers) */
#define ADCS6_AUX_RESTORE (1 << 3) /* 4FDC, 16FDC Restore* / 64FDC Unused */
#define ADCS6_AUX_FAST_SEEK (1 << 4) /* 4FDC, 16FDC Fast Seek* / 64FDC Unused */
#define ADCS6_AUX_SEL_OVERRIDE (1 << 5) /* 4FDC Eject Right* / 16FDC, 64FDC Drive Select Override */
#define ADCS6_AUX_EJECT (1 << 6) /* 4FDC Eject Left* / 16FDC Eject*, 64FDC Unused */
#define ADCS6_AUX_RESERVED7 (1 << 7) /* Unused (All Controllers) */
/* 64FDC Interrupt Mask Register, 0x03 (OUT) */
#define ADCS6_IRQ_TIMER1 (1 << 0) /* Timer1 Interrupt Mask */
#define ADCS6_IRQ_TIMER2 (1 << 1) /* Timer2 Interrupt Mask */
#define ADCS6_IRQ_EOJ (1 << 2) /* End of Job Interrupt Mask */
#define ADCS6_IRQ_TIMER3 (1 << 3) /* Timer3 Interrupt Mask */
#define ADCS6_IRQ_RDA (1 << 4) /* Read Data Available Interrupt Mask */
#define ADCS6_IRQ_TBE (1 << 5) /* Transmit Buffer Empty Interrupt Mask */
#define ADCS6_IRQ_TIMER4 (1 << 6) /* Timer4 Interrupt Mask */
#define ADCS6_IRQ_TIMER5 (1 << 7) /* Timer5 Interrupt Mask */
#define ADCS6_TIMER1_RST 0xC7 /* RST0 - 0xC7 */
#define ADCS6_TIMER2_RST 0xCF /* RST8 - 0xCF */
#define ADCS6_EOJ_RST 0xD7 /* RST10 - 0xD7 */
#define ADCS6_TIMER3_RST 0xDF /* RST18 - 0xDF */
#define ADCS6_RDA_RST 0xE7 /* RST20 - 0xE7 */
#define ADCS6_TBE_RST 0xEF /* RST28 - 0xEF */
#define ADCS6_TIMER4_RST 0xF7 /* RST30 - 0xF7 */
#define ADCS6_TIMER5_RST 0xFF /* RST38 - 0xFF */
#define RST_OPCODE_TO_VECTOR(x) (x & 0x38)
/* The ADCS6 does not really have RAM associated with it, but for ease of integration with the
* SIMH/AltairZ80 Resource Mapping Scheme, rather than Map and Unmap the ROM, simply implement our
* own RAM that can be swapped in when the ADCS6 Boot ROM is disabled.
*/
static uint8 adcs6ram[ADCS6_ROM_SIZE];
static UNIT adcs6_unit[] = {
{ UDATA (&adcs6_svc, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE + UNIT_ADCS6_ROM, ADCS6_CAPACITY), 1024 },
{ UDATA (&adcs6_svc, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, ADCS6_CAPACITY) },
{ UDATA (&adcs6_svc, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, ADCS6_CAPACITY) },
{ UDATA (&adcs6_svc, UNIT_FIX + UNIT_ATTABLE + UNIT_DISABLE + UNIT_ROABLE, ADCS6_CAPACITY) }
};
static REG adcs6_reg[] = {
{ HRDATA (J7, dipswitch, 8), },
{ NULL }
};
static MTAB adcs6_mod[] = {
{ MTAB_XTD|MTAB_VDV, 0, "MEMBASE", "MEMBASE", &set_membase, &show_membase, NULL },
{ MTAB_XTD|MTAB_VDV, 0, "IOBASE", "IOBASE", &set_iobase, &show_iobase, NULL },
{ UNIT_ADCS6_WLK, 0, "WRTENB", "WRTENB", NULL },
{ UNIT_ADCS6_WLK, UNIT_ADCS6_WLK, "WRTLCK", "WRTLCK", NULL },
/* quiet, no warning messages */
{ UNIT_ADCS6_VERBOSE, 0, "QUIET", "QUIET", NULL },
/* verbose, show warning messages */
{ UNIT_ADCS6_VERBOSE, UNIT_ADCS6_VERBOSE, "VERBOSE", "VERBOSE", NULL },
{ UNIT_ADCS6_ROM, 0, "NOROM", "NOROM", NULL },
{ UNIT_ADCS6_ROM, UNIT_ADCS6_ROM, "ROM", "ROM", NULL },
{ 0 }
};
#define TRACE_PRINT(level, args) if(adcs6_dev.dctrl & level) { \
printf args; \
}
/* Debug Flags */
static DEBTAB adcs6_dt[] = {
{ "ERROR", ERROR_MSG },
{ "SEEK", SEEK_MSG },
{ "CMD", CMD_MSG },
{ "RDDATA", RD_DATA_MSG },
{ "WRDATA", WR_DATA_MSG },
{ "STATUS", STATUS_MSG },
{ "DRIVE", DRIVE_MSG },
{ "VERBOSE",VERBOSE_MSG },
{ "IRQ", IRQ_MSG },
{ "DMA", DMA_MSG },
{ NULL, 0 }
};
DEVICE adcs6_dev = {
"ADCS6", adcs6_unit, adcs6_reg, adcs6_mod,
ADCS6_MAX_DRIVES, 10, 31, 1, ADCS6_MAX_DRIVES, ADCS6_MAX_DRIVES,
NULL, NULL, &adcs6_reset,
&adcs6_boot, &adcs6_attach, &adcs6_detach,
&adcs6_info_data, (DEV_DISABLE | DEV_DIS | DEV_DEBUG), ERROR_MSG,
adcs6_dt, NULL, "ADC Super-Six ADCS6"
};
/* This is the DIGITEX Monitor version 1.2.A -- 10/06/83
*
* MONITOR COMMANDS :
* B = LOAD DISK BOOT LOADER
* DSSSS,QQQQ = DUMP MEMORY IN HEX FROM S TO Q
* FSSSS,QQQQ,BB = FILL MEMORY FROM S TO Q WITH B
* GAAAA = GO TO ADDRESS A
* IPP = INPUT FROM PORT P
* LAAAA = LOAD MEMORY STARTING AT A
* MSSSS,QQQQ,DDDD = MOVE STARTING AT S TO Q TO ADDR. D
* OPP,DD = OUTPUT DATA D TO PORT P
* ESC WILL TERMINATE ANY COMMAND
*/
static uint8 adcs6_rom[ADCS6_ROM_SIZE] = {
0xC3, 0x3C, 0xF0, 0xC3, 0xA4, 0xF0, 0xC3, 0xB6, 0xF0, 0xC3, 0xAF, 0xF0, 0xC3, 0xC9, 0xF0, 0xC3,
0xE1, 0xF0, 0xC3, 0xF0, 0xF0, 0xC3, 0x06, 0xF1, 0xC3, 0x14, 0xF1, 0xC3, 0x0B, 0xF1, 0xC3, 0x22,
0xF1, 0xC3, 0x2D, 0xF1, 0xC3, 0x4A, 0xF1, 0xC3, 0x77, 0xF1, 0xC3, 0xA1, 0xF1, 0xC3, 0xFA, 0xF1,
0xC3, 0xBC, 0xF3, 0xC3, 0x53, 0xF3, 0xC3, 0x8E, 0xF2, 0xC3, 0xA0, 0xF2, 0xDB, 0x15, 0xD3, 0x18,
0xCB, 0x77, 0x28, 0x10, 0xAF, 0xD3, 0x15, 0xD3, 0x40, 0xD3, 0x17, 0x3E, 0x40, 0xD3, 0x16, 0x21,
0x3E, 0x60, 0x18, 0x0A, 0xAF, 0xD3, 0x17, 0x3E, 0x4F, 0xD3, 0x16, 0x21, 0x3E, 0x6F, 0x22, 0x04,
0xEE, 0xAF, 0x32, 0x01, 0xEE, 0x31, 0x64, 0xEE, 0x21, 0xCA, 0xF3, 0x01, 0x01, 0x08, 0xED, 0xB3,
0x21, 0xD2, 0xF3, 0xCD, 0xE1, 0xF0, 0xC3, 0xB2, 0xF2, 0x31, 0x64, 0xEE, 0x21, 0x4D, 0xF4, 0xCD,
0xE1, 0xF0, 0xCD, 0xC9, 0xF0, 0x47, 0x21, 0xAF, 0xF6, 0x7E, 0xFE, 0xFF, 0x28, 0x08, 0xB8, 0x28,
0x0D, 0x23, 0x23, 0x23, 0x18, 0xF3, 0x21, 0x52, 0xF4, 0xCD, 0xE1, 0xF0, 0x18, 0xDB, 0x23, 0x5E,
0x23, 0x56, 0xEB, 0xE9, 0xF5, 0xDB, 0x01, 0xE6, 0x04, 0x28, 0xFA, 0xF1, 0xD3, 0x00, 0xC9, 0xDB,
0x01, 0xE6, 0x01, 0xC8, 0x18, 0x06, 0xDB, 0x01, 0xE6, 0x01, 0x28, 0xFA, 0xDB, 0x00, 0xE6, 0x7F,
0xFE, 0x61, 0xD8, 0xFE, 0x7B, 0xD0, 0xE6, 0x5F, 0xC9, 0x3E, 0xFF, 0x32, 0x00, 0xEE, 0xCD, 0xB6,
0xF0, 0xF5, 0x3A, 0x00, 0xEE, 0xA7, 0x20, 0x02, 0xF1, 0xC9, 0xF1, 0xFE, 0x20, 0xD4, 0xA4, 0xF0,
0xC9, 0xF5, 0xE5, 0x7E, 0xB7, 0x28, 0x06, 0xCD, 0xA4, 0xF0, 0x23, 0x18, 0xF6, 0xE1, 0xF1, 0xC9,
0xE5, 0x21, 0x14, 0xF5, 0xCD, 0xE1, 0xF0, 0xE1, 0xC9, 0xCD, 0xAF, 0xF0, 0xFE, 0x1B, 0xCA, 0x79,
0xF0, 0xFE, 0x08, 0xD0, 0x18, 0xF3, 0xF5, 0x3E, 0x20, 0x18, 0x12, 0xF5, 0x0F, 0x0F, 0x0F, 0x0F,
0xCD, 0x14, 0xF1, 0xF1, 0xF5, 0xE6, 0x0F, 0xC6, 0x90, 0x27, 0xCE, 0x40, 0x27, 0xCD, 0xA4, 0xF0,
0xF1, 0xC9, 0xF5, 0x7C, 0xCD, 0x0B, 0xF1, 0x7D, 0xCD, 0x0B, 0xF1, 0xF1, 0xC9, 0xCD, 0xC9, 0xF0,
0xFE, 0x2C, 0xC8, 0xFE, 0x20, 0xC8, 0xFE, 0x30, 0xD8, 0xFE, 0x3A, 0xDA, 0x47, 0xF1, 0xFE, 0x41,
0xD8, 0xFE, 0x47, 0x3F, 0xD8, 0xD6, 0x07, 0xD6, 0x30, 0xC9, 0xC5, 0xD5, 0x0E, 0x00, 0x1E, 0x00,
0xCD, 0x2D, 0xF1, 0x30, 0x0E, 0xFE, 0x0D, 0x37, 0x20, 0x1A, 0x7B, 0xB7, 0x20, 0x15, 0x37, 0x3E,
0x0D, 0x18, 0x11, 0xFE, 0x10, 0x30, 0x0C, 0x1C, 0x47, 0x79, 0x87, 0x87, 0x87, 0x87, 0x80, 0x4F,
0xC3, 0x50, 0xF1, 0x79, 0xD1, 0xC1, 0xC9, 0xD5, 0x21, 0x00, 0x00, 0x37, 0x3F, 0xF5, 0xCD, 0x2D,
0xF1, 0x30, 0x0D, 0xFE, 0x0D, 0x20, 0x05, 0xCD, 0x06, 0xF1, 0x18, 0x12, 0xF1, 0x37, 0xD1, 0xC9,
0xFE, 0x10, 0x30, 0x0A, 0x29, 0x29, 0x29, 0x29, 0x5F, 0x16, 0x00, 0x19, 0x18, 0xE0, 0xF1, 0xD1,
0xC9, 0x77, 0xBE, 0xC8, 0xE5, 0x21, 0x63, 0xF4, 0xCD, 0xE1, 0xF0, 0xE1, 0xCD, 0x22, 0xF1, 0xC3,
0x79, 0xF0, 0xCD, 0x77, 0xF1, 0xD2, 0xBE, 0xF1, 0x21, 0x5D, 0xF4, 0xC3, 0x99, 0xF0, 0x22, 0x02,
0xEE, 0xCD, 0xF0, 0xF0, 0x2A, 0x02, 0xEE, 0xCD, 0x22, 0xF1, 0xCD, 0x06, 0xF1, 0x7E, 0xCD, 0x0B,
0xF1, 0xCD, 0x06, 0xF1, 0xCD, 0x4A, 0xF1, 0xDA, 0xE4, 0xF1, 0xCD, 0xA1, 0xF1, 0x2A, 0x02, 0xEE,
0x23, 0xC3, 0xBE, 0xF1, 0xFE, 0x0D, 0xCA, 0x79, 0xF0, 0xFE, 0x20, 0xCA, 0xDD, 0xF1, 0xFE, 0x2D,
0xC2, 0xB8, 0xF1, 0x2A, 0x02, 0xEE, 0x2B, 0xC3, 0xBE, 0xF1, 0xF5, 0x7A, 0x2F, 0x57, 0x7B, 0x2F,
0x5F, 0x13, 0xF1, 0xC9, 0xCD, 0x7E, 0xF2, 0xCD, 0x7E, 0xF2, 0xCD, 0xFA, 0xF1, 0xCD, 0xF0, 0xF0,
0xCD, 0x22, 0xF1, 0xCD, 0x06, 0xF1, 0xCD, 0x06, 0xF1, 0x7E, 0xCD, 0x0B, 0xF1, 0xCD, 0x3F, 0xF2,
0xCD, 0x86, 0xF2, 0xFE, 0x13, 0xCC, 0xF9, 0xF0, 0x7D, 0xE6, 0x0F, 0xCA, 0x0D, 0xF2, 0xC3, 0x16,
0xF2, 0xCD, 0x7E, 0xF2, 0xEB, 0xE9, 0x21, 0x17, 0xF5, 0xCD, 0xE1, 0xF0, 0xC3, 0x79, 0xF0, 0xE5,
0x19, 0xDA, 0x79, 0xF0, 0xE1, 0x23, 0xC9, 0xCD, 0x7E, 0xF2, 0xD5, 0xCD, 0x7E, 0xF2, 0xCD, 0x7E,
0xF2, 0xEB, 0xE3, 0x8D, 0xFA, 0xF1, 0x7E, 0xE3, 0xCD, 0xA1, 0xF1, 0x23, 0xE3, 0xCD, 0x3F, 0xF2,
0xCD, 0x86, 0xF2, 0xC3, 0x56, 0xF2, 0xCD, 0x7E, 0xF2, 0xCD, 0x7E, 0xF2, 0xCD, 0xFA, 0xF1, 0xCD,
0x4A, 0xF1, 0xDA, 0xB8, 0xF1, 0xCD, 0xA1, 0xF1, 0xCD, 0x3F, 0xF2, 0xC3, 0x75, 0xF2, 0xCD, 0x77,
0xF1, 0xDA, 0xB8, 0xF1, 0xEB, 0xC9, 0xCD, 0xAF, 0xF0, 0xB7, 0xC2, 0x79, 0xF0, 0xC9, 0xCD, 0x4A,
0xF1, 0xDA, 0xB8, 0xF1, 0x4F, 0xED, 0x78, 0xCD, 0xF0, 0xF0, 0xCD, 0x0B, 0xF1, 0xC3, 0x79, 0xF0,
0xCD, 0x4A, 0xF1, 0xDA, 0xB8, 0xF1, 0x4F, 0xCD, 0x4A, 0xF1, 0xDA, 0xB8, 0xF1, 0xED, 0x79, 0xC3,
0x79, 0xF0, 0xCD, 0x86, 0xF2, 0xCD, 0xC6, 0xF2, 0xCD, 0x6F, 0xF3, 0xCD, 0x86, 0xF2, 0xCD, 0xE8,
0xF2, 0xCD, 0x8F, 0xF3, 0x18, 0xF5, 0xDB, 0x15, 0x47, 0x3E, 0x18, 0xCB, 0x60, 0x20, 0x01, 0xAF,
0x32, 0x06, 0xEE, 0xD3, 0x14, 0x3E, 0x0B, 0xD3, 0x0C, 0x00, 0xDB, 0x14, 0xDB, 0x0C, 0xE6, 0x80,
0xC8, 0xAF, 0x32, 0x06, 0xEE, 0xD3, 0x14, 0xC9, 0xDB, 0x0C, 0x17, 0xD8, 0x21, 0xE8, 0x03, 0xDB,
0x0C, 0xE6, 0x02, 0x28, 0x06, 0x2B, 0x7D, 0xB4, 0x20, 0xF5, 0xC9, 0x06, 0x0A, 0x21, 0x80, 0x3E,
0xDB, 0x0C, 0xE6, 0x02, 0x20, 0x08, 0x2B, 0x7D, 0xB4, 0x20, 0xF5, 0x10, 0xF0, 0xC9, 0x3E, 0xFF,
0x32, 0x01, 0xEE, 0x3E, 0x01, 0x21, 0x00, 0xC0, 0x32, 0x08, 0xEE, 0xD3, 0x0E, 0x3E, 0x8C, 0xD3,
0x0C, 0x00, 0xDB, 0x14, 0xB7, 0xF2, 0x2E, 0xF3, 0xDB, 0x0F, 0x77, 0x23, 0x18, 0xF4, 0xDB, 0x0C,
0xB7, 0x20, 0x19, 0x3A, 0x08, 0xEE, 0x3C, 0xFE, 0x04, 0x20, 0xDD, 0x2A, 0x04, 0xEE, 0x22, 0xFC,
0xBF, 0x2A, 0x4A, 0xF3, 0x22, 0xFE, 0xBF, 0xC3, 0xFC, 0xBF, 0xD3, 0x16, 0xF5, 0x3A, 0x01, 0xEE,
0xB7, 0x28, 0x0D, 0x21, 0xB8, 0xF4, 0xCD, 0xE1, 0xF0, 0xF1, 0xCD, 0x0B, 0xF1, 0xC3, 0x79, 0xF0,
0xF1, 0x21, 0xD4, 0xF4, 0xCD, 0xE1, 0xF0, 0x3E, 0xFF, 0x32, 0x01, 0xEE, 0xC3, 0x79, 0xF0, 0xAF,
0xD3, 0xE6, 0x3E, 0x08, 0xD3, 0xE6, 0x3E, 0x10, 0xD3, 0xE6, 0x3E, 0x18, 0xD3, 0xE6, 0xAF, 0xD3,
0xE6, 0xD3, 0xE3, 0xD3, 0xE4, 0xD3, 0xE5, 0x3C, 0xD3, 0xE2, 0x3E, 0x70, 0xD3, 0xE7, 0xC9, 0xDB,
0xE7, 0xE6, 0x50, 0xFE, 0x50, 0xC0, 0xDB, 0xE7, 0xB7, 0xF8, 0xAF, 0xD3, 0xE6, 0x3E, 0x20, 0xD3,
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};
/* returns TRUE iff there exists a disk with VERBOSE */
static int32 adcs6_hasProperty(uint32 property) {
int32 i;
for (i = 0; i < ADCS6_MAX_DRIVES; i++)
if (adcs6_dev.units[i].flags & property)
return TRUE;
return FALSE;
}
static uint8 motor_timeout = 0;
/* Unit service routine */
static t_stat adcs6_svc (UNIT *uptr)
{
if(adcs6_info->head_sel == 1) {
motor_timeout ++;
if(motor_timeout == MOTOR_TO_LIMIT) {
adcs6_info->head_sel = 0;
TRACE_PRINT(DRIVE_MSG, ("ADCS6: Motor OFF" NLP))
}
}
adcs6_info->rtc ++;
printf("Timer IRQ\n");
adcs6_info->ipend |= ADCS6_IRQ_TIMER3;
/* sim_activate (adcs6_unit, adcs6_unit->wait); */ /* requeue! */
return SCPE_OK;
}
/* Reset routine */
static t_stat adcs6_reset(DEVICE *dptr)
{
PNP_INFO *pnp = (PNP_INFO *)dptr->ctxt;
if(dptr->flags & DEV_DIS) { /* Disconnect ROM and I/O Ports */
if (adcs6_hasProperty(UNIT_ADCS6_ROM)) {
sim_map_resource(pnp->mem_base, pnp->mem_size, RESOURCE_TYPE_MEMORY, &adcs6rom, TRUE);
}
/* Unmap I/O Ports (0x3-4,0x5-9,0x34,0x40 */
sim_map_resource(0x10, 4, RESOURCE_TYPE_IO, &adcs6_dma, TRUE);
sim_map_resource(0x04, 8, RESOURCE_TYPE_IO, &adcs6_timer, TRUE);
sim_map_resource(0x14, 1, RESOURCE_TYPE_IO, &adcs6_control, TRUE);
sim_map_resource(0x15, 7, RESOURCE_TYPE_IO, &adcs6_banksel, TRUE);
} else {
/* Connect ADCS6 ROM at base address */
if (adcs6_hasProperty(UNIT_ADCS6_ROM)) {
TRACE_PRINT(VERBOSE_MSG, ("ADCS6: ROM Enabled." NLP))
if(sim_map_resource(pnp->mem_base, pnp->mem_size, RESOURCE_TYPE_MEMORY, &adcs6rom, FALSE) != 0) {
printf("%s: error mapping MEM resource at 0x%04x\n", __FUNCTION__, pnp->io_base);
return SCPE_ARG;
}
adcs6_info->rom_disabled = FALSE;
} else {
TRACE_PRINT(VERBOSE_MSG, ("ADCS6: ROM Disabled." NLP))
adcs6_info->rom_disabled = TRUE;
}
/* Connect ADCS6 FDC Synchronization / Drive / Density Register */
if(sim_map_resource(0x14, 0x01, RESOURCE_TYPE_IO, &adcs6_control, FALSE) != 0) {
printf("%s: error mapping I/O resource at 0x%04x\n", __FUNCTION__, pnp->io_base);
return SCPE_ARG;
}
/*#define ADCS6 */
#ifdef ADCS6
/* Connect ADCS6 Interrupt, and Aux Disk Registers */
if(sim_map_resource(0x10, 0x04, RESOURCE_TYPE_IO, &adcs6_dma, FALSE) != 0) {
printf("%s: error mapping I/O resource at 0x%04x\n", __FUNCTION__, pnp->io_base);
return SCPE_ARG;
}
/* Connect ADCS6 Timer Registers */
if(sim_map_resource(0x04, 0x08, RESOURCE_TYPE_IO, &adcs6_timer, FALSE) != 0) {
printf("%s: error mapping I/O resource at 0x%04x\n", __FUNCTION__, pnp->io_base);
return SCPE_ARG;
}
#endif
/* Connect ADCS6 Memory Management / Bank Select Register */
if(sim_map_resource(0x15, 0x7, RESOURCE_TYPE_IO, &adcs6_banksel, FALSE) != 0) {
printf("%s: error mapping I/O resource at 0x%04x\n", __FUNCTION__, pnp->io_base);
return SCPE_ARG;
}
}
/* sim_activate (adcs6_unit, adcs6_unit->wait); */ /* requeue! */
return SCPE_OK;
}
static t_stat adcs6_boot(int32 unitno, DEVICE *dptr)
{
DBG_PRINT(("Booting ADCS6 Controller" NLP));
/* Re-enable the ROM in case it was disabled */
adcs6_info->rom_disabled = FALSE;
/* Set the PC to 0, and go. */
*((int32 *) sim_PC->loc) = 0xF000;
return SCPE_OK;
}
/* Attach routine */
static t_stat adcs6_attach(UNIT *uptr, char *cptr)
{
t_stat r;
r = wd179x_attach(uptr, cptr);
return r;
}
/* Detach routine */
static t_stat adcs6_detach(UNIT *uptr)
{
t_stat r;
r = wd179x_detach(uptr);
return r;
}
static int32 adcs6rom(const int32 Addr, const int32 write, const int32 data)
{
/* DBG_PRINT(("ADCS6: ROM %s, Addr %04x" NLP, write ? "WR" : "RD", Addr)); */
if(write) {
if(adcs6_info->rom_disabled == FALSE) {
TRACE_PRINT(ERROR_MSG,
("ADCS6: " ADDRESS_FORMAT " Cannot write to ROM." NLP, PCX));
} else {
adcs6ram[Addr & ADCS6_ADDR_MASK] = data;
}
return 0;
} else {
if(adcs6_info->rom_disabled == FALSE) {
return(adcs6_rom[Addr & ADCS6_ADDR_MASK]);
} else {
return(adcs6ram[Addr & ADCS6_ADDR_MASK]);
}
}
}
/* Disk Control/Flags Register, 0x14 */
static int32 adcs6_control(const int32 port, const int32 io, const int32 data)
{
int32 result = 0;
if(io) { /* I/O Write */
wd179x_info->sel_drive = data & 0x03;
if(data & ADCS6_CTRL_MINI) {
wd179x_info->drivetype = 5;
} else {
wd179x_info->drivetype = 8;
}
if(data & ADCS6_CTRL_HDS) {
adcs6_info->head_sel = 1;
wd179x_info->fdc_head = 1;
} else {
adcs6_info->head_sel = 0;
wd179x_info->fdc_head = 0;
}
if(data & ADCS6_CTRL_DDENS) {
wd179x_info->ddens = 1;
} else {
wd179x_info->ddens = 0;
}
if(data & ADCS6_CTRL_AUTOWAIT) {
adcs6_info->autowait = 1;
} else {
adcs6_info->autowait = 0;
}
TRACE_PRINT(DRIVE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR CTRL: sel_drive=%d, drivetype=%d, head_sel=%d, dens=%d, aw=%d" NLP, PCX,
wd179x_info->sel_drive, wd179x_info->drivetype, adcs6_info->head_sel, wd179x_info->ddens, adcs6_info->autowait));
} else { /* I/O Read */
result = wd179x_info->drq ? 0xFF : 0;
if (wd179x_info->intrq)
result &= 0x7F;
/* TRACE_PRINT(VERBOSE_MSG, */
/* ("ADCS6: " ADDRESS_FORMAT " Read DISK FLAGS, Port 0x%02x Result 0x%02x" NLP, PCX, port, result)) */
}
return result;
}
/* ADC Super Six DMA (Z80-DMA) */
static int32 adcs6_dma(const int32 port, const int32 io, const int32 data)
{
int32 result = 0xff;
if(io) { /* I/O Write */
TRACE_PRINT(DMA_MSG,
("ADCS6: " ADDRESS_FORMAT " WR DMA: 0x%02x" NLP, PCX, data & 0xFF));
} else { /* I/O Read */
result = 0xFF;
TRACE_PRINT(DMA_MSG,
("ADCS6: " ADDRESS_FORMAT " RD DMA: 0x%02x" NLP, PCX, result));
}
return result;
}
/* ADC Super-Six PIO and CTC ports */
static int32 adcs6_timer(const int32 port, const int32 io, const int32 data)
{
static int32 result = 0xFF;
if(io) { /* Write */
switch(port) {
case 0x04:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR PIOA DATA=0x%02x" NLP, PCX, data));
break;
case 0x05:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR PIOB DATA=0x%02x" NLP, PCX, data));
break;
case 0x06:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR PIOA CTRL=0x%02x" NLP, PCX, data));
break;
case 0x07:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR PIOB CTRL=0x%02x" NLP, PCX, data));
break;
case 0x08:
case 0x09:
case 0x0A:
case 0x0B:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR CTC%d: 0x%02x" NLP, PCX, port - 8, data));
break;
default:
TRACE_PRINT(ERROR_MSG,
("ADCS6: " ADDRESS_FORMAT " WR Unhandled Port: 0x%02x=0x%02x" NLP, PCX, port, data));
break;
}
} else { /* Read */
result = 0xFF;
switch(port) {
case 0x04:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " RD PIOA DATA=0x%02x" NLP, PCX, result));
break;
case 0x05:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " RD PIOB DATA=0x%02x" NLP, PCX, result));
break;
case 0x06:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " RD PIOA CTRL=0x%02x" NLP, PCX, result));
break;
case 0x07:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " RD PIOB CTRL=0x%02x" NLP, PCX, result));
break;
case 0x08:
case 0x09:
case 0x0A:
case 0x0B:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " RD CTC%d: 0x%02x" NLP, PCX, port - 8, data));
break;
default:
TRACE_PRINT(ERROR_MSG,
("ADCS6: " ADDRESS_FORMAT " RD Unhandled Port: 0x%02x=0x%02x" NLP, PCX, port, data));
break;
}
}
return result;
}
/* 64FDC Bank Select (Write Disables boot ROM) */
static int32 adcs6_banksel(const int32 port, const int32 io, const int32 data)
{
int32 result;
if(io) { /* Write */
switch(port) {
case 0x15:
adcs6_info->s100_addr_u = data & 0xFF;
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR S100 A[23:16]=0x%02x" NLP, PCX, data));
break;
case 0x16:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR MCTRL0: 0x%02x" NLP, PCX, data));
adcs6_info->rom_disabled = (data & 0x20) ? TRUE : FALSE; /* Unmap Boot ROM */
break;
case 0x17:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR MCTRL1: 0x%02x" NLP, PCX, data));
break;
case 0x18:
case 0x19:
case 0x1A:
case 0x1B:
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " WR BAUD RATE=0x%02x" NLP, PCX, data));
break;
default:
TRACE_PRINT(ERROR_MSG,
("ADCS6: " ADDRESS_FORMAT " WR Unhandled Port: 0x%02x=0x%02x" NLP, PCX, port, data));
break;
}
result = 0;
} else { /* Read */
result = 0xFF;
switch(port) {
case 0x15:
/* These are the Jumpers at J7.
* Bit 7=0 = double-sided disk, bit 7=1 = single sided.
* Bit 6=0 = use on-board RAM, Bit 6=1 = use S-100 RAM cards.
* Bit 5:0 = "Baud Rate"
*/
result = dipswitch;
TRACE_PRINT(VERBOSE_MSG,
("ADCS6: " ADDRESS_FORMAT " RD BAUD RATE=0x%02x" NLP, PCX, result));
break;
case 0x16:
case 0x17:
case 0x18:
case 0x19:
case 0x1A:
case 0x1B:
default:
TRACE_PRINT(ERROR_MSG,
("ADCS6: " ADDRESS_FORMAT " RD attempt from write-only 0x%02x=0x%02x" NLP, PCX, port, result));
break;
}
}
return result;
}