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/* -*- c++ -*-
* picsim.hh -- X PIC simulator
*/
#include "patchlevel.h"
/*#include <std.h>*/
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Shell.h>
#include <X11/Xaw/Label.h>
#include <X11/Xaw/Scrollbar.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Toggle.h>
#include <X11/Xaw/AsciiText.h>
#include <X11/Xaw/TextSink.h>
#include "pu_defs.h" /* defines the PIC definition structure */
#ifdef __cplusplus
}
#endif
typedef struct reg { /* Info about each register in register file */
const char *name;
unsigned modified : 1;
unsigned modified_last : 1;
char redirect_page;
char redirect_reg;
char implemented;
char value;
char (*hook)( struct reg *r, Boolean write, char v );
} reg;
typedef struct {
char *reg_name;
char *bit_names[8];
char value;
char old_value;
} info_reg;
typedef struct {
char *pin_name;
unsigned io : 2;
unsigned hi : 1;
} pin_info;
typedef struct {
int npins;
pin_info *pins;
} pins_info;
/*
* These are commands that the sim controller will send to the PIC execution
* module.
*/
typedef enum {
Init, // Power-on reset
Reset, // MCLR reset
GetPage, // Return reg file page select bits
GetInfo, // Return current vals of regs that should
// be displayed in the Info window
GetPins, // Get info for IC window
Disassemble, // Return a string for the Instr window
Step // Run a cycle
} SimFunc;
typedef union { /* Simulator argument & return value */
int i;
void *p;
} SimAR;
typedef struct {
unsigned running:1;
unsigned sleeping:1;
u_long ticks; /* clock cycles @ uinfo.clock */
u_long millisec; /* ms of realtime elapsed in simulation */
int millisec_left; /* clock ticks left before another ms */
float wdt_min; /* WDT min, nominal, and max timeout */
float wdt_nominal; /* values */
float wdt_max;
u_long wdt_left; /* ticks left until WDT(max) timeout */
int prescaler;
int vreg; /* Page number of reg file in reg window */
int itop; /* PC of top line in instr window */
int pc; /* simulator PC */
int isize; /* words of instruction memory */
int nstack;
int sp;
int stack[32];
int instr;
int prefetch;
int reg_pages;
reg reg_file[4][128];
int neeprom;
char eeprom[128];
SimAR (*simulate)( SimFunc func, SimAR arg );
PICDEFN uinfo; /* User info (program, clock, etc) */
} PIC;
typedef struct {
Boolean nitpic_resources;
Pixel wdt_color_1;
Pixel wdt_color_2;
Pixel wdt_color_3;
float wdt_min;
float wdt_nom;
float wdt_max;
XFontStruct *info_bits;
Pixel led_on;
Pixel led_off;
Pixmap left_pointer;
Pixmap left_hollow;
Pixmap right_pointer;
Pixmap right_hollow;
} OptionsRec;
/*
* Function declarations
*/
extern void ic_update( void );
extern void info_update( void );
extern void info_quick( void );
extern Boolean ipointer_erase( void );
extern void sim_init( const char *fname );
extern void redraw( void );
extern void reg_update( void );
extern int dialog( const char *text, int n, ... );
/*
* Simulators
*/
extern SimAR pic16c84( SimFunc func, SimAR arg );
/*
* Action routines
*/
#define XtActionProcArgs Widget w, XEvent *ev, String *prms, Cardinal *nprm
extern void ic_refresh( XtActionProcArgs );
extern void info_refresh( XtActionProcArgs );
extern void ipointer_refresh( XtActionProcArgs );
extern void ipointer_seek( XtActionProcArgs );
extern void instr_refresh( XtActionProcArgs );
extern void load_file( XtActionProcArgs );
extern void reg_refresh( XtActionProcArgs );
extern void reg_switch( XtActionProcArgs );
extern void sim_step( XtActionProcArgs );
extern void sim_reset( XtActionProcArgs );
extern void sim_toggle_run( XtActionProcArgs );
#undef XtActionProcArgs
/*
* Callbacks
*/
extern void instr_scroll( Widget w, XtPointer client_data, XtPointer pos );
extern void instr_jump( Widget w, XtPointer client_data, XtPointer percent );
#ifdef __main__
# define GLOBAL
#else
# define GLOBAL extern
#endif
GLOBAL struct Widgets {
Widget toplevel;
Widget main;
Widget title;
Widget copyright;
Widget info;
Widget ic;
Widget instr;
Widget ipointer;
Widget itext;
Widget iscroll;
Widget regs;
Widget rprev;
Widget rpage;
Widget rnext;
Widget rdata;
Widget data;
Widget reset;
Widget step;
Widget run;
Widget interrupt;
Widget file;
Widget quit;
} W;
GLOBAL OptionsRec Options;
GLOBAL XtAppContext AppContext;
GLOBAL PIC Pic;
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