/* Copyright (c) 1988 by Sozobon, Limited.  Authors: Johann Ruegg, Don Dugger
 *
 * Permission is granted to anyone to use this software for any purpose
 * on any computer system, and to redistribute it freely, with the
 * following restrictions:
 * 1) No charge may be made other than reasonable charges for reproduction.
 * 2) Modified versions must be clearly marked as such.
 * 3) The authors are not responsible for any harmful consequences
 *    of using this software, even if they result from defects in it.
 *
 *	adb.h
 */

#define LINESZ  78		/* leave space for a two character prompt */

#define NUMERIC		3
#define HEX		7
#define ALPHA		5
#define SPECCMD		8
#define SPECX		16

#define ALPHANUM	1
#define HEXDIG		2
#define ALPHAONLY	4

#define BSIZE		512
#define LOGBS		9
#define SYMSZ		10

/*
 *	Error types
 */
#define ACCESS		0	/* access outside address map */
#define UNBAL		1	/* unbalanced parenthesis */
#define UNKNOWN		2	/* unknown command */
#define BADCMD		3	/* bad command at this time */
#define BADNAME		4	/* cant find symbol */
#define BADRNAME	5	/* cant find register */

#define sreg(a)	((a) & 7)
#define smod(a)	(((a) >> 3) & 7)
#define dreg(a)	(((a) >> 9) & 7)
#define dmod(a)	(((a) >> 6) & 7)

struct symbol {
	unsigned long	value;
	struct symbol  *next;
	char		name[0]; /* strorage will be allocated by addsym() */
};

struct file {
	int	fid;
	char   *name;
	struct symbol *symptr;
};

#define SUBPCS	1

/*
 *	Base page layout
 */

typedef struct basepg {
	char *		p_lowtpa;	/* base address of TPA */
	char *		p_hitpa;	/* end of TPA */
	char *		p_tbase;	/* base address of text */
	unsigned long	p_tlen;		/* length of text */
	char *		p_dbase;	/* base of data */
	unsigned long	p_dlen;		/* length of data */
	char *		p_bbase;	/* base of bss */
	unsigned long	p_blen;		/* length of bss */
	char *		p_dta;
	struct basepg * p_parent;
	long		p_res;
	char *		p_env;		/* ptr to environment string */
	long		p_fill[20];
	char		p_cmdlin[0x80];	/* command line image */
} base_page;

typedef struct regs {
	char *		name;
	unsigned long *	value;
} registers;

#define TRBUFSZ	0x2000
typedef struct {
	int             buffered;
	int             buf_len;
	char            storage[TRBUFSZ];
} w_buf;

typedef struct {
    short           code;
    short           mask;
    int             len;	/* distance to next instrunction in shorts */
} next_step;

/*
 * There only one instance of this structure and its fields
 * are initialized in a startup code
 */

typedef struct window {
    unsigned short  curc;	  /* current character position on a line */
    unsigned long   curl;	  /* offset in bytes to the current line  */
    short           res;	  /* resolution  as returned by Getrez()  */
    unsigned short  cols, lines;  /* my window size in characters	  */
    unsigned short  fontsz;	  /* height of alpha cell in pixels	  */
    unsigned short  csz;	  /* value from 'skips' below		  */
    unsigned short  lsz;	  /* width of a screen row in bytes	  */
    unsigned short  fsz;	  /* width in bytes of a row of pixels	  */
    char           *font;	  /* pointer to font data (shapes)	  */
};

#define TBITS	0xc000
#define ITRACE	0x8000

#define PC	0
#define SR	1
#define XSP	2
#define D0	3
#define A0	11
#define FP	(A0 + 6)
#define SP	(A0 + 7)

/* colums to align for printing after address */
#define ALIGN_A  28
#define ALIGN_OP 9   /* offset for operands printing */

#define NO_TRANS  (-4)

#define START_DBG	0
#define RD_TEXT		1
#define RD_DATA		2
#define RD_USER		3
#define WR_TEXT		4
#define WR_DATA		5
#define WR_USER		6
#define CONTINUE	7
#define KILL_PID	8
#define SSTEP		9

long ptrace();

struct fheader {
	short	magic;
	long	tsize;
	long	dsize;
	long	bsize;
	long	ssize;
	long	stksize;
	long	entry;
	short	flag;
};

#define MAGIC	0x601a

struct filsym {
	char	name[8];
	short	flag;
	long	value;
};

struct mwfilsym {
	char	name[16];
	short	flag;
	union sval {
	    long    value;
	    char    got[4];
	} sval;
};

#define S_DEF	0100000
#define S_EQU	0040000
#define S_EXT	0020000
#define S_REG	0010000
#define S_REF	0004000
#define S_DATA	0002000
#define S_TEXT	0001000
#define S_BSS	0000400
#define S_FIL	0000200
#define S_LNAM  0000110
#define S_EXTEND  (S_TEXT|S_EQU)

#define FALSE   0
#define TRUE    (!FALSE)

typedef int bool;

#define MAXBPTS         10

/* kinds of stepping commands */

#define CM_CONT		 0
#define CM_STEP		(CM_CONT+1)
#define CM_NEXT		(CM_STEP+1)
#define CM_FINISH	(CM_NEXT+1)

/* stepping.c */

extern void PrBptList();
extern bool SetBpt(/* short* addr */);
extern bool ClrBpt(/* short* addr */);
extern void SingleStep(/* short* addr, int kind */);
extern void FullStep(/* short* addr, short* target, int kind */);
extern void NextStep(/* short* addr, next_step *skip_list */);
extern void FuncStep(/* short* addr */);

/* execution status for commands on breakpoints */

#define SILENT	(-1)
#define BLANK	  0
#define DOWN      1
#define ON        2
#define REVERT    3
#define IGNORE    4
#define NEW       5

#define PUSHC(c)	(lastc = (c))
#define PEEKC		PUSHC(nb())
/* end */