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sim_defs.h
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sim_defs.h
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/* sim_defs.h: simulator definitions
Copyright (c) 1993-2016, Robert M Supnik
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
ROBERT M SUPNIK 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 Robert M Supnik shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
25-Sep-16 RMS Removed KBD_WAIT and friends
08-Mar-16 RMS Added shutdown invisible switch
24-Dec-14 JDB Added T_ADDR_FMT
05-Jan-11 MP Added Asynch I/O support
18-Jan-11 MP Added log file reference count support
21-Jul-08 RMS Removed inlining support
28-May-08 RMS Added inlining support
28-Jun-07 RMS Added IA64 VMS support (from Norm Lastovica)
18-Jun-07 RMS Added UNIT_IDLE flag
18-Mar-07 RMS Added UNIT_TEXT flag
07-Mar-07 JDB Added DEBUG_PRJ macro
18-Oct-06 RMS Added limit check for clock synchronized keyboard waits
13-Jul-06 RMS Guarantee CBUFSIZE is at least 256
07-Jan-06 RMS Added support for breakpoint spaces
Added REG_FIT flag
16-Aug-05 RMS Fixed C++ declaration and cast problems
11-Mar-05 RMS Moved 64b data type definitions outside USE_INT64
07-Feb-05 RMS Added assertion fail stop
05-Nov-04 RMS Added support for SHOW opt=val
20-Oct-04 RMS Converted all base types to typedefs
21-Sep-04 RMS Added switch to flag stop message printout
06-Feb-04 RMS Moved device and unit user flags fields (V3.2)
RMS Added REG_VMAD
29-Dec-03 RMS Added output stall status
15-Jun-03 RMS Added register flag REG_VMIO
23-Apr-03 RMS Revised for 32b/64b t_addr
14-Mar-03 RMS Lengthened default serial output wait
31-Mar-03 RMS Added u5, u6 fields
18-Mar-03 RMS Added logical name support
Moved magtape definitions to sim_tape.h
Moved breakpoint definitions from scp.c
03-Mar-03 RMS Added sim_fsize
08-Feb-03 RMS Changed sim_os_sleep to void, added match_ext
05-Jan-03 RMS Added hidden switch definitions, device dyn memory support,
parameters for function pointers, case sensitive SET support
22-Dec-02 RMS Added break flag
08-Oct-02 RMS Increased simulator error code space
Added Telnet errors
Added end of medium support
Added help messages to CTAB
Added flag and context fields to DEVICE
Added restore flag masks
Revised 64b definitions
02-May-02 RMS Removed log status codes
22-Apr-02 RMS Added magtape record length error
30-Dec-01 RMS Generalized timer package, added circular arrays
07-Dec-01 RMS Added breakpoint package
01-Dec-01 RMS Added read-only unit support, extended SET/SHOW features,
improved error messages
24-Nov-01 RMS Added unit-based registers
27-Sep-01 RMS Added queue count prototype
17-Sep-01 RMS Removed multiple console support
07-Sep-01 RMS Removed conditional externs on function prototypes
31-Aug-01 RMS Changed int64 to t_int64 for Windoze
17-Jul-01 RMS Added additional function prototypes
27-May-01 RMS Added multiple console support
15-May-01 RMS Increased string buffer size
25-Feb-01 RMS Revisions for V2.6
15-Oct-00 RMS Editorial revisions for V2.5
11-Jul-99 RMS Added unsigned int data types
14-Apr-99 RMS Converted t_addr to unsigned
04-Oct-98 RMS Additional definitions for V2.4
The interface between the simulator control package (SCP) and the
simulator consists of the following routines and data structures
sim_name simulator name string
sim_devices[] array of pointers to simulated devices
sim_PC pointer to saved PC register descriptor
sim_interval simulator interval to next event
sim_stop_messages[SCPE_BASE]
array of pointers to stop messages
sim_instr() instruction execution routine
sim_load() binary loader routine
sim_emax maximum number of words in an instruction
In addition, the simulator must supply routines to print and parse
architecture specific formats
print_sym print symbolic output
parse_sym parse symbolic input
*/
#ifndef SIM_DEFS_H_
#define SIM_DEFS_H_ 0
#include "sim_rev.h"
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#if defined(_MSC_VER) && (_MSC_VER < 1900)
#define snprintf _snprintf /* poor man's snprintf which will work most of the time but has different return value */
#endif
#if defined(__VAX)
extern int sim_vax_snprintf(char *buf, size_t buf_size, const char *fmt, ...);
#define snprintf sim_vax_snprintf
#endif
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <ctype.h>
#ifndef EXIT_FAILURE
#define EXIT_FAILURE 1
#endif
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifdef _WIN32
#include <winsock2.h>
#include <windows.h>
#include <winerror.h>
#undef PACKED /* avoid macro name collision */
#undef ERROR /* avoid macro name collision */
#undef MEM_MAPPED /* avoid macro name collision */
#include <process.h>
#endif
#ifdef USE_REGEX
#undef USE_REGEX
#endif
#if defined(HAVE_PCRE_H)
#include <pcre.h>
#define USE_REGEX 1
#endif
#if (defined (__MWERKS__) && defined (macintosh)) || defined(__DECC)
#define __FUNCTION__ __FILE__
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* avoid macro names collisions */
#ifdef MAX
#undef MAX
#endif
#ifdef MIN
#undef MIN
#endif
#ifdef PMASK
#undef PMASK
#endif
#ifdef RS
#undef RS
#endif
#ifdef PAGESIZE
#undef PAGESIZE
#endif
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
/* SCP API shim.
The SCP API for version 4.0 introduces a number of "pointer-to-const"
parameter qualifiers that were not present in the 3.x versions. To maintain
compatibility with the earlier versions, the new qualifiers are expressed as
"CONST" rather than "const". This allows macro removal of the qualifiers
when compiling for SIMH 3.x.
*/
#ifndef CONST
#define CONST const
#endif
/* Length specific integer declarations */
/* Handle the special/unusual cases first with everything else leveraging stdints.h */
#if defined (VMS)
#include <ints.h>
#elif defined(_MSC_VER) && (_MSC_VER < 1600)
typedef __int8 int8;
typedef __int16 int16;
typedef __int32 int32;
typedef unsigned __int8 uint8;
typedef unsigned __int16 uint16;
typedef unsigned __int32 uint32;
#else
/* All modern/standard compiler environments */
/* any other environment needa a special case above */
#include <stdint.h>
typedef int8_t int8;
typedef int16_t int16;
typedef int32_t int32;
typedef uint8_t uint8;
typedef uint16_t uint16;
typedef uint32_t uint32;
#endif /* end standard integers */
typedef int t_stat; /* status */
typedef int t_bool; /* boolean */
/* 64b integers */
#if defined (__GNUC__) /* GCC */
typedef signed long long t_int64;
typedef unsigned long long t_uint64;
#elif defined (_WIN32) /* Windows */
typedef signed __int64 t_int64;
typedef unsigned __int64 t_uint64;
#elif (defined (__ALPHA) || defined (__ia64)) && defined (VMS) /* 64b VMS */
typedef signed __int64 t_int64;
typedef unsigned __int64 t_uint64;
#elif defined (__ALPHA) && defined (__unix__) /* Alpha UNIX */
typedef signed long t_int64;
typedef unsigned long t_uint64;
#else /* default */
#define t_int64 signed long long
#define t_uint64 unsigned long long
#endif /* end 64b */
#ifndef INT64_C
#define INT64_C(x) x ## LL
#endif
#if defined (USE_INT64) /* 64b data */
typedef t_int64 t_svalue; /* signed value */
typedef t_uint64 t_value; /* value */
#define T_VALUE_MAX 0xffffffffffffffffuLL
#define T_SVALUE_MAX 0x7fffffffffffffffLL
#else /* 32b data */
typedef int32 t_svalue;
typedef uint32 t_value;
#define T_VALUE_MAX 0xffffffffUL
#define T_SVALUE_MAX 0x7fffffffL
#endif /* end 64b data */
#if defined (USE_INT64) && defined (USE_ADDR64) /* 64b address */
typedef t_uint64 t_addr;
#define T_ADDR_W 64
#define T_ADDR_FMT LL_FMT
#else /* 32b address */
typedef uint32 t_addr;
#define T_ADDR_W 32
#define T_ADDR_FMT ""
#endif /* end 64b address */
#if defined (_WIN32)
#define vsnprintf _vsnprintf
#endif
#if defined (__DECC) && defined (__VMS) && (defined (__VAX) || (__CRTL_VER <= 70311000))
#define NO_vsnprintf
#endif
#if defined( NO_vsnprintf)
#define STACKBUFSIZE 16384
#else
#define STACKBUFSIZE 2048
#endif
#if defined (_WIN32) /* Actually, a GCC issue */
#define LL_FMT "I64"
#define LL_TYPE long long
#else
#if defined (__VAX) /* No 64 bit ints on VAX */
#define LL_FMT "l"
#define LL_TYPE long
#else
#define LL_FMT "ll"
#define LL_TYPE long long
#endif
#endif
#if defined (VMS) && (defined (__ia64) || defined (__ALPHA))
#define HAVE_GLOB
#endif
#if defined (__linux) || defined (VMS) || defined (__APPLE__)
#define HAVE_C99_STRFTIME 1
#endif
#if defined (_WIN32)
#define NULL_DEVICE "NUL:"
#elif defined (_VMS)
#define NULL_DEVICE "NL:"
#else
#define NULL_DEVICE "/dev/null"
#endif
/* Stubs for inlining */
#if defined(_MSC_VER)
#define SIM_INLINE _inline
#define SIM_NOINLINE _declspec (noinline)
#elif defined(__GNUC__)
#define SIM_INLINE inline
#define SIM_NOINLINE __attribute__ ((noinline))
#else
#define SIM_INLINE
#define SIM_NOINLINE
#endif
/* Packed structure support */
#ifdef _MSC_VER
# define PACKED_BEGIN __pragma( pack(push, 1) )
# define PACKED_END __pragma( pack(pop) )
#else
# define PACKED_BEGIN
#if defined(_WIN32)
# define PACKED_END __attribute__((gcc_struct, packed))
#else
# define PACKED_END __attribute__((packed))
#endif
#endif
/* System independent definitions */
#define FLIP_SIZE (1 << 16) /* flip buf size */
#if !defined (PATH_MAX) /* usually in limits */
#define PATH_MAX 512
#endif
#if (PATH_MAX >= 128)
#define CBUFSIZE (128 + PATH_MAX) /* string buf size */
#else
#define CBUFSIZE 256
#endif
/* Breakpoint spaces definitions */
#define SIM_BKPT_N_SPC (1 << (32 - SIM_BKPT_V_SPC)) /* max number spaces */
#define SIM_BKPT_V_SPC (BRK_TYP_MAX + 1) /* location in arg */
/* Extended switch definitions (bits >= 26) */
#define SIM_SW_HIDE (1u << 26) /* enable hiding */
#define SIM_SW_REST (1u << 27) /* attach/restore */
#define SIM_SW_REG (1u << 28) /* register value */
#define SIM_SW_STOP (1u << 29) /* stop message */
#define SIM_SW_SHUT (1u << 30) /* shutdown */
/* Simulator status codes
0 ok
1 - (SCPE_BASE - 1) simulator specific
SCPE_BASE - n general
*/
#define SCPE_OK 0 /* normal return */
#define SCPE_BASE 64 /* base for messages */
#define SCPE_NXM (SCPE_BASE + 0) /* nxm */
#define SCPE_UNATT (SCPE_BASE + 1) /* no file */
#define SCPE_IOERR (SCPE_BASE + 2) /* I/O error */
#define SCPE_CSUM (SCPE_BASE + 3) /* loader cksum */
#define SCPE_FMT (SCPE_BASE + 4) /* loader format */
#define SCPE_NOATT (SCPE_BASE + 5) /* not attachable */
#define SCPE_OPENERR (SCPE_BASE + 6) /* open error */
#define SCPE_MEM (SCPE_BASE + 7) /* alloc error */
#define SCPE_ARG (SCPE_BASE + 8) /* argument error */
#define SCPE_STEP (SCPE_BASE + 9) /* step expired */
#define SCPE_UNK (SCPE_BASE + 10) /* unknown command */
#define SCPE_RO (SCPE_BASE + 11) /* read only */
#define SCPE_INCOMP (SCPE_BASE + 12) /* incomplete */
#define SCPE_STOP (SCPE_BASE + 13) /* sim stopped */
#define SCPE_EXIT (SCPE_BASE + 14) /* sim exit */
#define SCPE_TTIERR (SCPE_BASE + 15) /* console tti err */
#define SCPE_TTOERR (SCPE_BASE + 16) /* console tto err */
#define SCPE_EOF (SCPE_BASE + 17) /* end of file */
#define SCPE_REL (SCPE_BASE + 18) /* relocation error */
#define SCPE_NOPARAM (SCPE_BASE + 19) /* no parameters */
#define SCPE_ALATT (SCPE_BASE + 20) /* already attached */
#define SCPE_TIMER (SCPE_BASE + 21) /* hwre timer err */
#define SCPE_SIGERR (SCPE_BASE + 22) /* signal err */
#define SCPE_TTYERR (SCPE_BASE + 23) /* tty setup err */
#define SCPE_SUB (SCPE_BASE + 24) /* subscript err */
#define SCPE_NOFNC (SCPE_BASE + 25) /* func not imp */
#define SCPE_UDIS (SCPE_BASE + 26) /* unit disabled */
#define SCPE_NORO (SCPE_BASE + 27) /* rd only not ok */
#define SCPE_INVSW (SCPE_BASE + 28) /* invalid switch */
#define SCPE_MISVAL (SCPE_BASE + 29) /* missing value */
#define SCPE_2FARG (SCPE_BASE + 30) /* too few arguments */
#define SCPE_2MARG (SCPE_BASE + 31) /* too many arguments */
#define SCPE_NXDEV (SCPE_BASE + 32) /* nx device */
#define SCPE_NXUN (SCPE_BASE + 33) /* nx unit */
#define SCPE_NXREG (SCPE_BASE + 34) /* nx register */
#define SCPE_NXPAR (SCPE_BASE + 35) /* nx parameter */
#define SCPE_NEST (SCPE_BASE + 36) /* nested DO */
#define SCPE_IERR (SCPE_BASE + 37) /* internal error */
#define SCPE_MTRLNT (SCPE_BASE + 38) /* tape rec lnt error */
#define SCPE_LOST (SCPE_BASE + 39) /* Telnet conn lost */
#define SCPE_TTMO (SCPE_BASE + 40) /* Telnet conn timeout */
#define SCPE_STALL (SCPE_BASE + 41) /* Telnet conn stall */
#define SCPE_AFAIL (SCPE_BASE + 42) /* assert failed */
#define SCPE_INVREM (SCPE_BASE + 43) /* invalid remote console command */
#define SCPE_EXPECT (SCPE_BASE + 44) /* expect matched */
#define SCPE_AMBREG (SCPE_BASE + 45) /* ambiguous register */
#define SCPE_REMOTE (SCPE_BASE + 46) /* remote console command */
#define SCPE_INVEXPR (SCPE_BASE + 47) /* invalid expression */
#define SCPE_SIGTERM (SCPE_BASE + 48) /* SIGTERM has been received */
#define SCPE_FSSIZE (SCPE_BASE + 49) /* File System size larger than disk size */
#define SCPE_RUNTIME (SCPE_BASE + 50) /* Run Time Limit Exhausted */
#define SCPE_INCOMPDSK (SCPE_BASE + 51) /* Incompatible Disk Container */
#define SCPE_MAX_ERR (SCPE_BASE + 51) /* Maximum SCPE Error Value */
#define SCPE_KFLAG 0x10000000 /* tti data flag */
#define SCPE_BREAK 0x20000000 /* tti break flag */
#define SCPE_NOMESSAGE 0x40000000 /* message display supression flag */
#define SCPE_BARE_STATUS(stat) ((stat) & ~(SCPE_NOMESSAGE|SCPE_KFLAG|SCPE_BREAK))
/* Print value format codes */
#define PV_RZRO 0 /* right, zero fill */
#define PV_RSPC 1 /* right, space fill */
#define PV_RCOMMA 2 /* right, space fill. Comma separate every 3 */
#define PV_LEFT 3 /* left justify */
#define PV_RCOMMASIGN 6 /* right, space fill. Comma separate every 3 treat as signed */
#define PV_LEFTSIGN 7 /* left justify treat as signed */
/* Default timing parameters */
#define KBD_POLL_WAIT 5000 /* keyboard poll */
#define SERIAL_IN_WAIT 100 /* serial in time */
#define SERIAL_OUT_WAIT 100 /* serial output */
#define NOQUEUE_WAIT 1000000 /* min check time */
/* Convert switch letter to bit mask */
#define SWMASK(x) (1u << (((int) (x)) - ((int) 'A')))
/* String match - at least one character required */
#define MATCH_CMD(ptr,cmd) ((NULL == (ptr)) || (!*(ptr)) || strncasecmp ((ptr), (cmd), strlen (ptr)))
/* End of Linked List/Queue value */
/* Chosen for 2 reasons: */
/* 1 - to not be NULL, this allowing the NULL value to */
/* indicate inclusion on a list */
/* and */
/* 2 - to not be a valid/possible pointer (alignment) */
#define QUEUE_LIST_END ((UNIT *)1)
/* Typedefs for principal structures */
typedef struct DEVICE DEVICE;
typedef struct UNIT UNIT;
typedef struct REG REG;
typedef struct CTAB CTAB;
typedef struct C1TAB C1TAB;
typedef struct SHTAB SHTAB;
typedef struct MTAB MTAB;
typedef struct SCHTAB SCHTAB;
typedef struct BRKTAB BRKTAB;
typedef struct BRKTYPTAB BRKTYPTAB;
typedef struct EXPTAB EXPTAB;
typedef struct EXPECT EXPECT;
typedef struct SEND SEND;
typedef struct DEBTAB DEBTAB;
typedef struct FILEREF FILEREF;
typedef struct MEMFILE MEMFILE;
typedef struct BITFIELD BITFIELD;
typedef t_stat (*ACTIVATE_API)(UNIT *unit, int32 interval);
/* Device data structure */
struct DEVICE {
const char *name; /* name */
UNIT *units; /* units */
REG *registers; /* registers */
MTAB *modifiers; /* modifiers */
uint32 numunits; /* #units */
uint32 aradix; /* address radix */
uint32 awidth; /* address width */
uint32 aincr; /* addr increment */
uint32 dradix; /* data radix */
uint32 dwidth; /* data width */
t_stat (*examine)(t_value *v, t_addr a, UNIT *up,
int32 sw); /* examine routine */
t_stat (*deposit)(t_value v, t_addr a, UNIT *up,
int32 sw); /* deposit routine */
t_stat (*reset)(DEVICE *dp); /* reset routine */
t_stat (*boot)(int32 u, DEVICE *dp);
/* boot routine */
t_stat (*attach)(UNIT *up, CONST char *cp);
/* attach routine */
t_stat (*detach)(UNIT *up); /* detach routine */
void *ctxt; /* context */
uint32 flags; /* flags */
uint32 dctrl; /* debug control */
DEBTAB *debflags; /* debug flags */
t_stat (*msize)(UNIT *up, int32 v, CONST char *cp, void *dp);
/* mem size routine */
char *lname; /* logical name */
t_stat (*help)(FILE *st, DEVICE *dptr,
UNIT *uptr, int32 flag, const char *cptr);
/* help */
t_stat (*attach_help)(FILE *st, DEVICE *dptr,
UNIT *uptr, int32 flag, const char *cptr);
/* attach help */
void *help_ctx; /* Context available to help routines */
const char *(*description)(DEVICE *dptr); /* Device Description */
BRKTYPTAB *brk_types; /* Breakpoint types */
void *type_ctx; /* Device Type/Library Context */
};
/* Device flags */
#define DEV_V_DIS 0 /* dev disabled */
#define DEV_V_DISABLE 1 /* dev disable-able */
#define DEV_V_DYNM 2 /* mem size dynamic */
#define DEV_V_DEBUG 3 /* debug capability */
#define DEV_V_TYPE 4 /* Attach type */
#define DEV_S_TYPE 4 /* Width of Type Field */
#define DEV_V_SECTORS 8 /* Unit Capacity is in 512byte sectors */
#define DEV_V_DONTAUTO 9 /* Do not auto detach already attached units */
#define DEV_V_FLATHELP 10 /* Use traditional (unstructured) help */
#define DEV_V_NOSAVE 11 /* Don't save device state */
#define DEV_V_UF_31 12 /* user flags, V3.1 */
#define DEV_V_UF 16 /* user flags */
#define DEV_V_RSV 31 /* reserved */
#define DEV_DIS (1 << DEV_V_DIS) /* device is currently disabled */
#define DEV_DISABLE (1 << DEV_V_DISABLE) /* device can be set enabled or disabled */
#define DEV_DYNM (1 << DEV_V_DYNM) /* device requires call on msize routine to change memory size */
#define DEV_DEBUG (1 << DEV_V_DEBUG) /* device supports SET DEBUG command */
#define DEV_SECTORS (1 << DEV_V_SECTORS) /* capacity is 512 byte sectors */
#define DEV_DONTAUTO (1 << DEV_V_DONTAUTO) /* Do not auto detach already attached units */
#define DEV_FLATHELP (1 << DEV_V_FLATHELP) /* Use traditional (unstructured) help */
#define DEV_NOSAVE (1 << DEV_V_NOSAVE) /* Don't save device state */
#define DEV_NET 0 /* Deprecated - meaningless */
#define DEV_TYPEMASK (((1 << DEV_S_TYPE) - 1) << DEV_V_TYPE)
#define DEV_DISK (1 << DEV_V_TYPE) /* sim_disk Attach */
#define DEV_TAPE (2 << DEV_V_TYPE) /* sim_tape Attach */
#define DEV_MUX (3 << DEV_V_TYPE) /* sim_tmxr Attach */
#define DEV_CARD (4 << DEV_V_TYPE) /* sim_card Attach */
#define DEV_ETHER (5 << DEV_V_TYPE) /* Ethernet Device */
#define DEV_DISPLAY (6 << DEV_V_TYPE) /* Display Device */
#define DEV_TYPE(dptr) ((dptr)->flags & DEV_TYPEMASK)
#define DEV_UFMASK_31 (((1u << DEV_V_RSV) - 1) & ~((1u << DEV_V_UF_31) - 1))
#define DEV_UFMASK (((1u << DEV_V_RSV) - 1) & ~((1u << DEV_V_UF) - 1))
#define DEV_RFLAGS (DEV_UFMASK|DEV_DIS) /* restored flags */
/* Unit data structure
Parts of the unit structure are device specific, that is, they are
not referenced by the simulator control package and can be freely
used by device simulators. Fields starting with 'buf', and flags
starting with 'UF', are device specific. The definitions given here
are for a typical sequential device.
*/
struct UNIT {
UNIT *next; /* next active */
t_stat (*action)(UNIT *up); /* action routine */
char *filename; /* open file name */
FILE *fileref; /* file reference */
void *filebuf; /* memory buffer */
void *filebuf2; /* copy of initial memory buffer */
uint32 hwmark; /* high water mark */
int32 time; /* time out */
uint32 flags; /* flags */
uint32 dynflags; /* dynamic flags */
t_addr capac; /* capacity */
t_addr pos; /* file position */
void (*io_flush)(UNIT *up); /* io flush routine */
uint32 iostarttime; /* I/O start time */
int32 buf; /* buffer */
int32 wait; /* wait */
int32 u3; /* device specific */
int32 u4; /* device specific */
int32 u5; /* device specific */
int32 u6; /* device specific */
void *up7; /* device specific */
void *up8; /* device specific */
uint16 us9; /* device specific */
uint16 us10; /* device specific */
uint32 disk_type; /* Disk specific info */
void *tmxr; /* TMXR linkage */
uint32 recsize; /* Tape specific info */
t_addr tape_eom; /* Tape specific info */
t_bool (*cancel)(UNIT *);
double usecs_remaining; /* time balance for long delays */
char *uname; /* Unit name */
DEVICE *dptr; /* DEVICE linkage (backpointer) */
uint32 dctrl; /* debug control */
#ifdef SIM_ASYNCH_IO
void (*a_check_completion)(UNIT *);
t_bool (*a_is_active)(UNIT *);
UNIT *a_next; /* next asynch active */
int32 a_event_time;
ACTIVATE_API a_activate_call;
/* Asynchronous Polling control */
/* These fields should only be referenced when holding the sim_tmxr_poll_lock */
t_bool a_polling_now; /* polling active flag */
int32 a_poll_waiter_count; /* count of polling threads */
/* waiting for this unit */
/* Asynchronous Timer control */
double a_due_time; /* due time for timer event */
double a_due_gtime; /* due time (in instructions) for timer event */
double a_usec_delay; /* time delay for timer event */
#endif
};
/* Unit flags */
#define UNIT_V_UF_31 12 /* dev spec, V3.1 */
#define UNIT_V_UF 16 /* device specific */
#define UNIT_V_RSV 31 /* reserved!! */
#define UNIT_ATTABLE 0000001 /* attachable */
#define UNIT_RO 0000002 /* read only */
#define UNIT_FIX 0000004 /* fixed capacity */
#define UNIT_SEQ 0000010 /* sequential */
#define UNIT_ATT 0000020 /* attached */
#define UNIT_BINK 0000040 /* K = power of 2 */
#define UNIT_BUFABLE 0000100 /* bufferable */
#define UNIT_MUSTBUF 0000200 /* must buffer */
#define UNIT_BUF 0000400 /* buffered */
#define UNIT_ROABLE 0001000 /* read only ok */
#define UNIT_DISABLE 0002000 /* disable-able */
#define UNIT_DIS 0004000 /* disabled */
#define UNIT_IDLE 0040000 /* idle eligible */
#define UNIT_WLK 0100000 /* hardware write lock */
#define UNIT_WPRT (UNIT_WLK|UNIT_RO)/* write protect */
/* Unused/meaningless flags */
#define UNIT_TEXT 0000000 /* text mode - no effect */
#define UNIT_UFMASK_31 (((1u << UNIT_V_RSV) - 1) & ~((1u << UNIT_V_UF_31) - 1))
#define UNIT_UFMASK (((1u << UNIT_V_RSV) - 1) & ~((1u << UNIT_V_UF) - 1))
#define UNIT_RFLAGS (UNIT_UFMASK|UNIT_DIS) /* restored flags */
/* Unit dynamic flags (dynflags) */
/* These flags are only set dynamically */
#define UNIT_ATTMULT 0000001 /* Allow multiple attach commands */
#define UNIT_TM_POLL 0000002 /* TMXR Polling unit */
#define UNIT_NO_FIO 0000004 /* fileref is NOT a FILE * */
#define UNIT_DISK_CHK 0000010 /* disk data debug checking (sim_disk) */
#define UNIT_TMR_UNIT 0000200 /* Unit registered as a calibrated timer */
#define UNIT_TAPE_MRK 0000400 /* Tape Unit Tapemark */
#define UNIT_TAPE_PNU 0001000 /* Tape Unit Position Not Updated */
#define UNIT_V_DF_TAPE 10 /* Bit offset for Tape Density reservation */
#define UNIT_S_DF_TAPE 3 /* Bits Reserved for Tape Density */
#define UNIT_V_TAPE_FMT 13 /* Bit offset for Tape Format */
#define UNIT_S_TAPE_FMT 4 /* Bits Reserved for Tape Format */
#define UNIT_M_TAPE_FMT (((1 << UNIT_S_TAPE_FMT) - 1) << UNIT_V_TAPE_FMT)
#define UNIT_V_TAPE_ANSI 17 /* Bit offset for ANSI Tape Type */
#define UNIT_S_TAPE_ANSI 4 /* Bits Reserved for ANSI Tape Type */
#define UNIT_M_TAPE_ANSI (((1 << UNIT_S_TAPE_ANSI) - 1) << UNIT_V_TAPE_ANSI)
struct BITFIELD {
const char *name; /* field name */
uint32 offset; /* starting bit */
uint32 width; /* width */
const char **valuenames; /* map of values to strings */
const char *format; /* value format string */
};
/* Register data structure */
struct REG {
CONST char *name; /* name */
void *loc; /* location */
uint32 radix; /* radix */
uint32 width; /* width */
uint32 offset; /* starting bit */
uint32 depth; /* save depth */
const char *desc; /* description */
BITFIELD *fields; /* bit fields */
uint32 qptr; /* circ q ptr */
size_t str_size; /* structure size */
size_t obj_size; /* sizeof(*loc) */
size_t ele_size; /* sizeof(**loc) or sizeof(*loc) if depth == 1 */
const char *macro; /* Initializer Macro Name */
/* NOTE: Flags MUST always be last since it is initialized outside of macro definitions */
uint32 flags; /* flags */
};
/* Register flags */
#define REG_FMT 00003 /* see PV_x */
#define REG_RO 00004 /* read only */
#define REG_HIDDEN 00010 /* hidden */
#define REG_NZ 00020 /* must be non-zero */
#define REG_UNIT 00040 /* in unit struct */
#define REG_STRUCT 00100 /* in structure array */
#define REG_CIRC 00200 /* circular array */
#define REG_VMIO 00400 /* use VM data print/parse */
#define REG_VMAD 01000 /* use VM addr print/parse */
#define REG_FIT 02000 /* fit access to size */
#define REG_DEPOSIT 04000 /* call VM routine after update */
#define REG_HRO (REG_RO | REG_HIDDEN) /* hidden, read only */
#define REG_V_UF 16 /* device specific */
#define REG_UFMASK (~((1u << REG_V_UF) - 1)) /* user flags mask */
#define REG_VMFLAGS (REG_VMIO | REG_UFMASK) /* call VM routine if any of these are set */
/* Command tables, base and alternate formats */
struct CTAB {
const char *name; /* name */
t_stat (*action)(int32 flag, CONST char *cptr);
/* action routine */
int32 arg; /* argument */
const char *help; /* help string/structured locator */
const char *help_base; /* structured help base*/
void (*message)(const char *unechoed_cmdline, t_stat stat);
/* message printing routine */
};
struct C1TAB {
const char *name; /* name */
t_stat (*action)(DEVICE *dptr, UNIT *uptr,
int32 flag, CONST char *cptr);/* action routine */
int32 arg; /* argument */
const char *help; /* help string */
};
struct SHTAB {
const char *name; /* name */
t_stat (*action)(FILE *st, DEVICE *dptr,
UNIT *uptr, int32 flag, CONST char *cptr);
int32 arg; /* argument */
const char *help; /* help string */
};
/* Modifier table - only extended entries have disp, reg, or flags */
struct MTAB {
uint32 mask; /* mask */
uint32 match; /* match */
const char *pstring; /* print string */
const char *mstring; /* match string */
t_stat (*valid)(UNIT *up, int32 v, CONST char *cp, void *dp);
/* validation routine */
t_stat (*disp)(FILE *st, UNIT *up, int32 v, CONST void *dp);
/* display routine */
void *desc; /* value descriptor */
/* pointer to something needed by */
/* the validation and/or display routines */
const char *help; /* help string */
};
/* mtab mask flag bits */
/* NOTE: MTAB_VALR and MTAB_VALO are only used to display help */
#define MTAB_XTD (1u << UNIT_V_RSV) /* ext entry flag */
#define MTAB_VDV (0001 | MTAB_XTD) /* valid for dev */
#define MTAB_VUN (0002 | MTAB_XTD) /* valid for unit */
#define MTAB_VALR (0004 | MTAB_XTD) /* takes a value (required) */
#define MTAB_VALO (0010 | MTAB_XTD) /* takes a value (optional) */
#define MTAB_NMO (0020 | MTAB_XTD) /* only if named */
#define MTAB_NC (0040 | MTAB_XTD) /* no UC conversion */
#define MTAB_QUOTE (0100 | MTAB_XTD) /* quoted string */
#define MTAB_SHP (0200 | MTAB_XTD) /* show takes parameter */
#define MODMASK(mptr,flag) (((mptr)->mask & (uint32)(flag)) == (uint32)(flag))/* flag mask test */
/* Search table */
struct SCHTAB {
int32 logic; /* logical operator */
int32 boolop; /* boolean operator */
uint32 count; /* value count in mask and comp arrays */
t_value *mask; /* mask for logical */
t_value *comp; /* comparison for boolean */
};
/* Breakpoint table */
struct BRKTAB {
t_addr addr; /* address */
uint32 typ; /* mask of types */
#define BRK_TYP_USR_TYPES ((1 << ('Z'-'A'+1)) - 1)/* all types A-Z */
#define BRK_TYP_DYN_STEPOVER (SWMASK ('Z'+1))
#define BRK_TYP_DYN_USR (SWMASK ('Z'+2))
#define BRK_TYP_DYN_ALL (BRK_TYP_DYN_USR|BRK_TYP_DYN_STEPOVER) /* Mask of All Dynamic types */
#define BRK_TYP_TEMP (SWMASK ('Z'+3)) /* Temporary (one-shot) */
#define BRK_TYP_MAX (('Z'-'A')+3) /* Maximum breakpoint type */
int32 cnt; /* proceed count */
char *act; /* action string */
double time_fired[SIM_BKPT_N_SPC]; /* instruction count when match occurred */
BRKTAB *next; /* list with same address value */
};
/* Breakpoint table */
struct BRKTYPTAB {
uint32 btyp; /* type mask */
const char *desc; /* description */
};
#define BRKTYPE(typ,descrip) {SWMASK(typ), descrip}
/* Expect rule */
struct EXPTAB {
uint8 *match; /* match string */
uint32 size; /* match string size */
char *match_pattern; /* match pattern for format */
int32 cnt; /* proceed count */
uint32 after; /* delay before halting */
int32 switches; /* flags */
#define EXP_TYP_PERSIST (SWMASK ('P')) /* rule persists after match, default is once a rule matches, it is removed */
#define EXP_TYP_CLEARALL (SWMASK ('C')) /* clear all rules after matching this rule, default is to once a rule matches, it is removed */
#define EXP_TYP_REGEX (SWMASK ('R')) /* rule pattern is a regular expression */
#define EXP_TYP_REGEX_I (SWMASK ('I')) /* regular expression pattern matching should be case independent */
#define EXP_TYP_TIME (SWMASK ('T')) /* halt delay is in microseconds instead of instructions */
#if defined(USE_REGEX)
pcre *regex; /* compiled regular expression */
int re_nsub; /* regular expression sub expression count */
#endif
char *act; /* action string */
};
/* Expect Context */
struct EXPECT {
DEVICE *dptr; /* Device (for Debug) */
uint32 dbit; /* Debugging Bit */
EXPTAB *rules; /* match rules */
int32 size; /* count of match rules */
uint8 *buf; /* buffer of output data which has produced */
uint32 buf_ins; /* buffer insertion point for the next output data */
uint32 buf_size; /* buffer size */
uint32 buf_data; /* count of data in buffer */
};
/* Send Context */
struct SEND {
uint32 delay; /* instruction delay between sent data */
#define SEND_DEFAULT_DELAY 1000 /* default delay instruction count */
DEVICE *dptr; /* Device (for Debug) */
uint32 dbit; /* Debugging Bit */
uint32 after; /* instruction delay before sending any data */
double next_time; /* execution time when next data can be sent */
uint8 *buffer; /* buffer */
size_t bufsize; /* buffer size */
int32 insoff; /* insert offset */
int32 extoff; /* extra offset */
};
/* Debug table */
struct DEBTAB {
const char *name; /* control name */
uint32 mask; /* control bit */
const char *desc; /* description */
};
/* Deprecated Debug macros. Use sim_debug() */
#define DEBUG_PRS(d) (sim_deb && d.dctrl)
#define DEBUG_PRD(d) (sim_deb && d->dctrl)
#define DEBUG_PRI(d,m) (sim_deb && (d.dctrl & (m)))
#define DEBUG_PRJ(d,m) (sim_deb && ((d)->dctrl & (m)))
/* Open File Reference */
struct FILEREF {
char name[CBUFSIZE]; /* file name */
FILE *file; /* file handle */
int32 refcount; /* reference count */
};
struct MEMFILE {
char *buf; /* buffered data */
size_t size; /* size */
size_t pos; /* data used */
};
/*
The following macros exist to help populate structure contents
They are dependent on the declaration order of the fields
of the structures they exist to populate.
*/
#define UDATA(act,fl,cap) NULL,act,NULL,NULL,NULL,NULL,0,0,(fl),0,(cap),0,NULL,0,0
/* Internal use ONLY (see below) Generic Register declaration for all fields */
#define _REGDATANF(nm,loc,rdx,wd,off,dep,desc,flds,qptr,siz,elesiz,macro) \
nm, (loc), (rdx), (wd), (off), (dep), (desc), (flds), (qptr), (siz), sizeof(*(loc)), (elesiz), #macro
#if defined (__STDC__) || defined (_WIN32) /* Variants which depend on how macro arguments are convered to strings */
/* Generic Register declaration for all fields.
If the register structure is extended, this macro will be retained and a
new internal macro will be provided that populates the new register structure */
#define REGDATA(nm,loc,rdx,wd,off,dep,desc,flds,fl,qptr,siz) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,desc,flds,qptr,siz,sizeof((loc)),REGDATA),(fl)
#define REGDATAC(nm,loc,rdx,wd,off,dep,desc,flds,fl,qptr,siz) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,desc,flds,qptr,siz,sizeof((loc)),REGDATAC),(fl)
/* Right Justified Octal Register Data */
#define ORDATA(nm,loc,wd) \
_REGDATANF(#nm,&(loc),8,wd,0,1,NULL,NULL,0,0,sizeof((loc)),ORDATA)
#define ORDATAD(nm,loc,wd,desc) \
_REGDATANF(#nm,&(loc),8,wd,0,1,desc,NULL,0,0,sizeof((loc)),ORDATAD)
#define ORDATADF(nm,loc,wd,desc,flds) \
_REGDATANF(#nm,&(loc),8,wd,0,1,desc,flds,0,0,sizeof((loc)),ORDATADF)
/* Right Justified Decimal Register Data */
#define DRDATA(nm,loc,wd) \
_REGDATANF(#nm,&(loc),10,wd,0,1,NULL,NULL,0,0,sizeof((loc)),DRDATA)
#define DRDATAD(nm,loc,wd,desc) \
_REGDATANF(#nm,&(loc),10,wd,0,1,desc,NULL,0,0,sizeof((loc)),DRDATAD)
#define DRDATADF(nm,loc,wd,desc,flds) \
_REGDATANF(#nm,&(loc),10,wd,0,1,desc,flds,0,0,sizeof((loc)),DRDATADF)
/* Right Justified Hexadecimal Register Data */
#define HRDATA(nm,loc,wd) \
_REGDATANF(#nm,&(loc),16,wd,0,1,NULL,NULL,0,0,sizeof((loc)),HRDATA)
#define HRDATAD(nm,loc,wd,desc) \
_REGDATANF(#nm,&(loc),16,wd,0,1,desc,NULL,0,0,sizeof((loc)),HRDATAD)
#define HRDATADF(nm,loc,wd,desc,flds) \
_REGDATANF(#nm,&(loc),16,wd,0,1,desc,flds,0,0,sizeof((loc)),HRDATADF)
/* Right Justified Binary Register Data */
#define BINRDATA(nm,loc,wd) \
_REGDATANF(#nm,&(loc),2,wd,0,1,NULL,NULL,0,0,sizeof((loc)),BINRDATA)
#define BINRDATAD(nm,loc,wd,desc) \
_REGDATANF(#nm,&(loc),2,wd,0,1,desc,NULL,0,0,sizeof((loc)),BINRDATAD)
#define BINRDATADF(nm,loc,wd,desc,flds) \
_REGDATANF(#nm,&(loc),2,wd,0,1,desc,flds,0,0,sizeof((loc)),BINRDATADF)
/* One-bit binary flag at an arbitrary offset in a 32-bit word Register */
#define FLDATA(nm,loc,pos) \
_REGDATANF(#nm,&(loc),2,1,pos,1,NULL,NULL,0,0,sizeof((loc)),FLDATA)
#define FLDATAD(nm,loc,pos,desc) \
_REGDATANF(#nm,&(loc),2,1,pos,1,desc,NULL,0,0,sizeof((loc)),FLDATAD)
#define FLDATADF(nm,loc,pos,desc,flds) \
_REGDATANF(#nm,&(loc),2,1,pos,1,desc,flds,0,0,sizeof((loc)),FLDATADF)
/* Arbitrary location and Radix Register */
#define GRDATA(nm,loc,rdx,wd,pos) \
_REGDATANF(#nm,&(loc),rdx,wd,pos,1,NULL,NULL,0,0,sizeof((loc)),GRDATA)
#define GRDATAD(nm,loc,rdx,wd,pos,desc) \
_REGDATANF(#nm,&(loc),rdx,wd,pos,1,desc,NULL,0,0,sizeof((loc)),GRDATAD)
#define GRDATADF(nm,loc,rdx,wd,pos,desc,flds) \
_REGDATANF(#nm,&(loc),rdx,wd,pos,1,desc,flds,0,0,sizeof((loc)),GRDATADF)
/* Arrayed register whose data is kept in a standard C array Register */
#define BRDATA(nm,loc,rdx,wd,dep) \
_REGDATANF(#nm,&(loc),rdx,wd,0,dep,NULL,NULL,0,0,sizeof(*(loc)),BRDATA)
#define BRDATAD(nm,loc,rdx,wd,dep,desc) \
_REGDATANF(#nm,&(loc),rdx,wd,0,dep,desc,NULL,0,0,sizeof(*(loc)),BRDATAD)
#define BRDATADF(nm,loc,rdx,wd,dep,desc,flds) \
_REGDATANF(#nm,&(loc),rdx,wd,0,dep,desc,flds,0,0,sizeof(*(loc)),BRDATADF)
/* Range of memory whose data is successive scalar values accessed like an array Register */
#define VBRDATA(nm,loc,rdx,wd,dep) \
_REGDATANF(#nm,&(loc),rdx,wd,0,dep,NULL,NULL,0,0,sizeof(loc),VBRDATA)
#define VBRDATAD(nm,loc,rdx,wd,dep,desc) \
_REGDATANF(#nm,&(loc),rdx,wd,0,dep,desc,NULL,0,0,sizeof(loc),VBRDATAD)
#define VBRDATADF(nm,loc,rdx,wd,dep,desc,flds) \
_REGDATANF(#nm,&(loc),rdx,wd,0,dep,desc,flds,0,0,sizeof(loc),VBRDATADF)
/* Arrayed register whose data is part of the UNIT structure */
#define URDATA(nm,loc,rdx,wd,off,dep,fl) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,NULL,NULL,0,0,sizeof((loc)),URDATA),((fl) | REG_UNIT)
#define URDATAD(nm,loc,rdx,wd,off,dep,fl,desc) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,desc,NULL,0,0,sizeof((loc)),URDATAD),((fl) | REG_UNIT)
#define URDATADF(nm,loc,rdx,wd,off,dep,fl,desc,flds) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,desc,flds,0,0,sizeof((loc)),URDATADF),((fl) | REG_UNIT)
/* Arrayed register whose data is part of an arbitrary structure */
#define STRDATA(nm,loc,rdx,wd,off,dep,siz,fl) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,NULL,NULL,0,siz,sizeof((loc)),STRDATA),((fl) | REG_STRUCT)
#define STRDATAD(nm,loc,rdx,wd,off,dep,siz,fl,desc) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,desc,NULL,0,siz,sizeof((loc)),STRDATAD),((fl) | REG_STRUCT)
#define STRDATADF(nm,loc,rdx,wd,off,dep,siz,fl,desc,flds) \
_REGDATANF(#nm,&(loc),rdx,wd,off,dep,desc,flds,0,siz,sizeof((loc)),STRDATADF),((fl) | REG_STRUCT)
/* Hidden Blob of Data - Only used for SAVE/RESTORE */
#define SAVEDATA(nm,loc) \
_REGDATANF(#nm,&(loc),0,8,0,1,NULL,NULL,0,sizeof(loc),sizeof(loc),SAVEDATA),(REG_HRO)
#define STARTBIT {"", 0x00000000, 0, NULL, NULL} /* Start at beginning bit */
#define BIT(nm) {#nm, 0xffffffff, 1, NULL, NULL} /* Single Bit definition */
#define BITNC {"", 0xffffffff, 1, NULL, NULL} /* Don't care Bit definition */
#define BITF(nm,sz) {#nm, 0xffffffff, sz, NULL, NULL} /* Bit Field definition */
#define BITNCF(sz) {"", 0xffffffff, sz, NULL, NULL} /* Don't care Bit Field definition */
#define BITFFMT(nm,sz,fmt) {#nm, 0xffffffff, sz, NULL, #fmt} /* Bit Field definition with Output format */
#define BITFNAM(nm,sz,names) {#nm, 0xffffffff, sz, names,NULL} /* Bit Field definition with value->name map */
#else /* For non-STD-C compiler which can't stringify macro arguments with # */
/* Generic Register declaration for all fields.
If the register structure is extended, this macro will be retained and a
new macro will be provided that populates the new register structure */