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src.rivoreo.one / emulators / simh / 896fd92c7acecdca8db4a6cf85dbd0dae56e15c8 / . / Ibm1130 / ibm1130_defs.h
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/*
* (C) Copyright 2002, Brian Knittel.
* You may freely use this program, but: it offered strictly on an AS-IS, AT YOUR OWN
* RISK basis, there is no warranty of fitness for any purpose, and the rest of the
* usual yada-yada. Please keep this notice and the copyright in any distributions
* or modifications.
*
* This is not a supported product, but I welcome bug reports and fixes.
* Mail to sim@ibm1130.org
*/
/* ibm1130_defs.h: IBM-1130 simulator definitions
*/
#include "sim_defs.h" /* main SIMH defns (include path should include .., or make a copy) */
#include "sim_console.h" /* more SIMH defns (include path should include .., or make a copy) */
#include <setjmp.h>
#include <assert.h>
#include <stdlib.h>
#if defined(VMS)
# include <unistd.h> /* to pick up 'unlink' */
#endif
#define MIN(a,b) (((a) <= (b)) ? (a) : (b))
#define MAX(a,b) (((a) >= (b)) ? (a) : (b))
#ifndef _WIN32
int strnicmp (const char *a, const char *b, size_t n);
int strcmpi (const char *a, const char *b);
#endif
/* #define GUI_SUPPORT uncomment to compile the GUI extensions. It's defined in the windows ibm1130.mak makefile */
/* ------------------------------------------------------------------------ */
/* Architectural constants */
#define MAXMEMSIZE (32768) /* 32Kwords */
#define INIMEMSIZE (16384) /* 16Kwords */
#define MEMSIZE (cpu_unit.capac)
#define ILL_ADR_FLAG 0x40000000 /* an impossible 1130 address */
/* ------------------------------------------------------------------------ */
/* Global state */
extern int cgi; /* TRUE if we are running as a CGI program */
extern int cgiwritable; /* TRUE if we can write the disk images back to the image file in CGI mode */
extern t_bool sim_gui;
extern uint16 M[]; /* core memory, up to 32Kwords (note: don't even think about trying 64K) */
extern uint16 ILSW[]; /* interrupt level status words */
extern int32 IAR; /* instruction address register */
extern int32 prev_IAR; /* instruction address register at start of current instruction */
extern int32 SAR, SBR; /* storage address/buffer registers */
extern int32 OP, TAG, CCC; /* instruction decoded pieces */
extern int32 CES; /* console entry switches */
extern int32 ACC, EXT; /* accumulator and extension */
extern int32 ARF; /* arithmetic factor register, a nonaddressable internal CPU register */
extern int32 RUNMODE; /* processor run/step mode */
extern int32 ipl; /* current interrupt level (-1 = not handling irq) */
extern int32 iplpending; /* interrupted IPL's */
extern int32 tbit; /* trace flag (causes level 5 IRQ after each instr) */
extern int32 V, C; /* condition codes */
extern int32 wait_state; /* wait state (waiting for an IRQ) */
extern int32 wait_lamp; /* alternate indicator to light the wait lamp on the GUI */
extern int32 int_req; /* sum of interrupt request levels active */
extern int32 int_lamps; /* accumulated version of int_req - gives lamp persistence */
extern int32 int_mask; /* current active interrupt mask (ipl sensitive) */
extern int32 mem_mask;
extern int32 cpu_dsw; /* CPU device status word */
extern int32 sim_int_char; /* interrupt character */
extern int32 con_dsw; /* has program stop and int run bits */
extern t_bool running;
extern t_bool power;
extern t_bool cgi; /* TRUE if we are running as a CGI program */
extern t_bool cgiwritable; /* TRUE if we can write to the disk image file in CGI mode */
extern t_stat reason; /* CPU execution loop control */
#define WAIT_OP 1 /* wait state causes: wait instruction, invalid instruction*/
#define WAIT_INVALID_OP 2
#define MODE_SS 3 /* RUNMODE values. SS and SMC are not implemented in this simulator */
#define MODE_SMC 2
#define MODE_INT_RUN 1
#define MODE_RUN 0
#define MODE_SI -1
#define MODE_DISP -2
#define MODE_LOAD -3
/* ------------------------------------------------------------------------ */
/* debugging */
/* ------------------------------------------------------------------------ */
#define ENABLE_DEBUG_PRINT
#define ENABLE_DEBUG_TO_LOG
#ifdef ENABLE_DEBUG_PRINT
# define DEBUG_PRINT debug_print
#else
# ifdef ENABLE_DEBUG_TO_LOG
# define DEBUG_PRINT trace_io
# else
# define DEBUG_PRINT if (0) debug_print
# endif
#endif
void debug_print(char *fmt, ...);
/* ------------------------------------------------------------------------ */
/* memory IO routines */
int32 ReadW (int32 a);
void WriteW (int32 a, int32 d);
/* ------------------------------------------------------------------------ */
/* handy macros */
#define CLRBIT(v,b) ((v) &= ~(b))
#define SETBIT(v,b) ((v) |= (b))
#define BETWEEN(v,a,b) (((v) >= (a)) && ((v) <= (b)))
/* ------------------------------------------------------------------------ */
/* Simulator stop codes */
#define STOP_WAIT 1 /* wait, no events */
#define STOP_INVALID_INSTR 2 /* bad instruction */
#define STOP_IBKPT 3 /* simulator breakpoint */
#define STOP_INCOMPLETE 4 /* simulator coding not complete here */
#define STOP_POWER_OFF 5 /* no power */
#define STOP_DECK_BREAK 6 /* !BREAK in deck file */
#define STOP_PHASE_BREAK 7 /* phase load break */
#define STOP_CRASH 8 /* program has crashed badly */
#define STOP_TIMED_OUT 9 /* simulation time limit exceeded */
#define STOP_IMMEDIATE 10 /* simulator stop key pressed (immediate stop) */
#define STOP_BREAK 11 /* simulator break key pressed */
#define STOP_STEP 12 /* step count expired */
#define STOP_OTHER 13 /* other reason, probably error returned by sim_process_event() */
#define IORETURN(f,v) ((f)? (v): SCPE_OK) /* cond error return */
#define INT_REQ_5 0x01 /* bits for interrupt levels (ipl, iplpending, int_req, int_mask) */
#define INT_REQ_4 0x02
#define INT_REQ_3 0x04
#define INT_REQ_2 0x08
#define INT_REQ_1 0x10
#define INT_REQ_0 0x20
#define XIO_UNUSED 0x00 /* XIO commands */
#define XIO_WRITE 0x01
#define XIO_READ 0x02
#define XIO_SENSE_IRQ 0x03
#define XIO_CONTROL 0x04
#define XIO_INITW 0x05
#define XIO_INITR 0x06
#define XIO_SENSE_DEV 0x07
#define XIO_FAILED 0x20 /* fake function to record error */
/* ILSW bits - set by appropriate device whenever an interrupt is outstanding */
#define ILSW_0_1442_CARD 0x8000 /* ILSW 0 is not really defined on the 1130 */
#define ILSW_1_1132_PRINTER 0x8000 /* had these backwards! */
#define ILSW_1_SCA 0x4000
#define ILSW_2_1131_DISK 0x8000
#define ILSW_2_2310_DRV_1 0x4000
#define ILSW_2_2310_DRV_2 0x2000
#define ILSW_2_2310_DRV_3 0x1000
#define ILSW_2_2310_DRV_4 0x0800 /* can have 2310 or 2311 */
#define ILSW_2_2311_DRV_1_DISK_1 0x4000
#define ILSW_2_2311_DRV_1_DISK_2 0x2000
#define ILSW_2_2311_DRV_1_DISK_3 0x1000
#define ILSW_2_2311_DRV_1_DISK_4 0x0800
#define ILSW_2_2311_DRV_1_DISK_5 0x0400
#define ILSW_2_2311_DRV_2_DISK_1 0x0200
#define ILSW_2_2311_DRV_2_DISK_2 0x0100
#define ILSW_2_2311_DRV_2_DISK_3 0x0080
#define ILSW_2_2311_DRV_2_DISK_4 0x0040
#define ILSW_2_2311_DRV_2_DISK_5 0x0020
#define ILSW_2_SAC_BIT_11 0x0010
#define ILSW_2_SAC_BIT_12 0x0008
#define ILSW_2_SAC_BIT_13 0x0004
#define ILSW_2_SAC_BIT_14 0x0002
#define ILSW_2_SAC_BIT_15 0x0001
#define ILSW_3_1627_PLOTTER 0x8000
#define ILSW_3_SAC_BIT_01 0x4000
#define ILSW_3_SAC_BIT_02 0x2000
#define ILSW_3_SAC_BIT_03 0x1000
#define ILSW_3_2250_DISPLAY 0x0800
#define ILSW_3_SYSTEM7 0x0800
#define ILSW_3_SAC_BIT_05 0x0400
#define ILSW_3_SAC_BIT_06 0x0200
#define ILSW_3_SAC_BIT_07 0x0100
#define ILSW_3_SAC_BIT_08 0x0080
#define ILSW_3_SAC_BIT_09 0x0040
#define ILSW_3_SAC_BIT_10 0x0020
#define ILSW_3_SAC_BIT_11 0x0010
#define ILSW_3_SAC_BIT_12 0x0008
#define ILSW_3_SAC_BIT_13 0x0004
#define ILSW_3_SAC_BIT_14 0x0002
#define ILSW_3_SAC_BIT_15 0x0001
#define ILSW_4_1134_TAPE 0x8000
#define ILSW_4_1055_TAPE 0x8000
#define ILSW_4_CONSOLE 0x4000
#define ILSW_4_1442_CARD 0x2000
#define ILSW_4_2501_CARD 0x1000
#define ILSW_4_1403_PRINTER 0x0800
#define ILSW_4_1231_MARK 0x0400
#define ILSW_4_SAC_BIT_06 0x0200
#define ILSW_4_SAC_BIT_07 0x0100
#define ILSW_4_SAC_BIT_08 0x0080
#define ILSW_4_SAC_BIT_09 0x0040
#define ILSW_4_SAC_BIT_10 0x0020
#define ILSW_4_SAC_BIT_11 0x0010
#define ILSW_4_T2741_TERMINAL 0x0010 /* APL\1130 nonstandard serial interface uses this bit */
#define ILSW_4_SAC_BIT_12 0x0008
#define ILSW_4_SAC_BIT_13 0x0004
#define ILSW_4_SAC_BIT_14 0x0002
#define ILSW_4_SAC_BIT_15 0x0001
#define ILSW_5_INT_RUN_PROGRAM_STOP 0x8000 /* this replaces both ILSW_5_INT_RUN and ILSW_5_PROGRAM_STOP */
#define ILSW_5_SAC_BIT_01 0x4000
#define ILSW_5_SAC_BIT_02 0x2000
#define ILSW_5_SAC_BIT_03 0x1000
#define ILSW_5_SAC_BIT_04 0x0800
#define ILSW_5_SAC_BIT_05 0x0400
#define ILSW_5_SAC_BIT_06 0x0200
#define ILSW_5_SAC_BIT_07 0x0100
#define ILSW_5_SAC_BIT_08 0x0080
#define ILSW_5_SAC_BIT_09 0x0040
#define ILSW_5_SAC_BIT_10 0x0020
#define ILSW_5_SAC_BIT_11 0x0010
#define ILSW_5_SAC_BIT_12 0x0008
#define ILSW_5_SAC_BIT_13 0x0004
#define ILSW_5_SAC_BIT_14 0x0002
#define ILSW_5_SAC_BIT_15 0x0001
/* CPU DSW bits */
#define CPU_DSW_PROGRAM_STOP 0x8000
#define CPU_DSW_INT_RUN 0x4000
/* prototypes: xio handlers */
void xio_1131_console (int32 addr, int32 func, int32 modify); /* console keyboard and printer */
void xio_1142_card (int32 addr, int32 func, int32 modify); /* standard card reader/punch */
void xio_1134_papertape (int32 addr, int32 func, int32 modify); /* paper tape reader/punch */
void xio_disk (int32 addr, int32 func, int32 modify, int drv); /* internal CPU disk */
void xio_1627_plotter (int32 addr, int32 func, int32 modify); /* XY plotter */
void xio_1132_printer (int32 addr, int32 func, int32 modify); /* standard line printer */
void xio_1131_switches (int32 addr, int32 func, int32 modify); /* console buttons & switches */
void xio_1231_optical (int32 addr, int32 func, int32 modify); /* optical mark page reader */
void xio_2501_card (int32 addr, int32 func, int32 modify); /* alternate high-speed card reader */
void xio_sca (int32 addr, int32 func, int32 modify); /* synchronous communications adapter */
void xio_system7 (int32 addr, int32 func, int32 modify); /* system/7 interprocessor IO link */
void xio_1403_printer (int32 addr, int32 func, int32 modify); /* alternate high-speed printer */
void xio_2250_display (int32 addr, int32 func, int32 modify); /* vector display processor */
void xio_t2741_terminal (int32 addr, int32 func, int32 modify); /* IO selectric via nonstandard serial interface for APL */
void xio_error (char *msg);
void bail (char *msg);
t_stat load_cr_boot (int drv, int switches);
t_stat cr_boot (int32 unitno, DEVICE *dptr);
t_stat cr_rewind (void);
t_stat cr_detach (UNIT *uptr);
void calc_ints (void); /* recalculate interrupt bitmask */
void trace_io (char *fmt, ...); /* debugging printout */
void trace_both (char *fmt, ...); /* debugging printout */
t_stat register_cmd (char *name, t_stat (*action)(int32 flag, char *ptr), int arg, char *help);
void scp_panic (char *msg); /* bail out of simulator */
char *upcase(char *str);
void break_simulation (t_stat reason); /* let a device halt the simulation */
char hollerith_to_ascii (uint16 hol); /* for debugging use only */
t_bool gdu_active (void);
void remark_cmd (char *remark);
void stuff_cmd (char *cmd);
t_bool stuff_and_wait (char *cmd, int timeout, int delay);
void update_gui (t_bool force);
void sim_init (void);
t_stat register_cmd (char *name, t_stat (*action)(int32 flag, char *ptr), int arg, char *help);
t_stat basic_attach (UNIT *uptr, char *cptr);
char * quotefix (char * cptr);
/* GUI interface routines */
t_bool keyboard_is_busy (void);
void forms_check (int set); /* device notification to console lamp display */
void print_check (int set);
void keyboard_selected (int select);
void disk_ready (int ready);
void disk_unlocked (int unlocked);
void gui_run(int running);
char *read_cmdline (char *ptr, int size, FILE *stream);
#ifdef GUI_SUPPORT
# define GUI_BEGIN_CRITICAL_SECTION begin_critical_section();
# define GUI_END_CRITICAL_SECTION end_critical_section();
void begin_critical_section (void);
void end_critical_section (void);
#else
# define GUI_BEGIN_CRITICAL_SECTION
# define GUI_END_CRITICAL_SECTION
#endif