defs.h

Outputs messages to a 2line LCD

/* File defs.h: 2.2 */


#define  FALSE    0
#define  TRUE     1
#define  NO       0
#define  YES      1
#define  byte     unsigned char

/* miscellaneous */

#define  EOS      0
#define  EOL      10
#define  BKSP     8
#define  CR       13
#define  FFEED    12
#define  TAB      9

/* system-wide name size (for symbols) */

#define  NAMESIZE 40
#define  NAMEMAX  NAMESIZE-1

#define	REGBASE			15			// first register allocated
#define	REGS				14			// r15 thru r2. These are allocated
											// from r15 downwards.

//***********************************************************
// symbol table parameters

#define	NUMGLOBALS		1000		// total global entries
#define	NUMLOCALS		50			// total local entries
#define	PRE_NUMGLOBALS	17			// pre sn globals
#define	PRE_NUMLOCALS	4			// pre sn locals

#define	SYMTBSZ		NUMGLOBALS+NUMLOCALS
#define	STARTGLB		0
#define	STARTLOC		ENDGLB+1
#define	ENDGLB		NUMGLOBALS
#define	ENDLOC		ENDGLB+NUMLOCALS-1
#define	PRE_ENDGLB	PRE_NUMGLOBALS
#define	PRE_ENDLOC	ENDGLB+PRE_NUMLOCALS-1


typedef struct m_argtyp {
	int	ident;
   int	type;
   } ARGTYPE;

struct s_symtab {
		char	name[NAMESIZE];
		int	ident;
		int	type;
		int	storage;
		int	offset;
		int	pntrpntr;
		};

typedef struct m_symtab {
	char	name[NAMESIZE];
	int	ident;
	int	type;
	int	storage;
   int	funcpar;		// item is a function parameter
	int	offset;
	int	used;
	int	pntrpntr;	// currently pointing to a pointer
	int	PerEntry;	// bytes per structure entry
   char	TypeDefName[NAMESIZE];
	int	reg;		// register number
	int	regs[16];	// array of register numbers owned by a function
   int	label;		// variable points to this global label
	int	args;		// No. of arguments for function &
   				//    pointer to the function entry for funcptr
	ARGTYPE	argtype[10];
	struct s_symtab entry[10];
	} SYMTAB;

// possible entries for "ident"

#define	VARIABLE			1
#define	ARRAY				2
#define	POINTER			3
#define	FUNCTION			4
#define	FUNCDEF			5	// function definition
#define	FUNCPTR			6	// function pointer
#define	STRUCT			7
#define	STRUCTPTR		8
#define	FUNCPTRARR		9	// array of function pointers
#define	POINTERARRAY	10	// array of pointers

// possible entries for "type"

#define	CCHAR				1
#define	CINT				2
#define	VOID				3
#define	CLONG				4
#define	STRUCTDEF		5	// structure definition
#define	STRUCTINST		6	// structure instance
#define	CSTRUCT			7	// structure pointer
#define	CFLOAT			8	// 4 byte floating point
#define	UCCHAR			9	// unsigned char
#define	UCINT				10	// unsigned int
#define	TYPEDEF			11

// possible entries for "storage"

#define	PUBLIC			1
#define	AUTO				2
#define	EXTERN			3
#define	STATIC			4
#define	LSTATIC			5
#define	DEFAUTO			6
#define	REGISTER			7	// register value
#define	INTERRUPT		8
#define	ROM				9	// storec in eeprom

// <reg> can have a register number in bits 6-0, and a CONSTANT
// flag in bit 7.

#define	CONSTANT		0x80	// flags variable as constant pointer

//***********************************************************

typedef struct m_tmpsym {
	int	ident;		// identity of object
	int	type;			// type of object
	int	pointing;	// true if pointing
	int	offset;		// offset of a structure
	int	storage;		// local, external, global, etc
   int	funcpar;		// item is a function parameter
	int	cast;			// destination cast type, if any
	int	ptr;			// symbol table address, else 0 for constant
	int	index;		// index to entry array in symtab
	} STATE;

typedef struct t_stack {
	char	name[NAMESIZE];
	int	type;
	int	storage;
	} STACK;

/* "do"/"for"/"while"/"switch" statement stack */

#define  WSTABSZ  100
#define  WSSIZ    7
#define  WSMAX    ws+WSTABSZ-WSSIZ

/* entry offsets in "do"/"for"/"while"/"switch" stack */

#define  WSSYM    0
#define  WSSP     1
#define  WSTYP    2
#define  WSCASEP  3
#define  WSTEST   3
#define  WSINCR   4
#define  WSDEF    4
#define  WSBODY   5
#define  WSTAB    5
#define  WSEXIT   6

/* possible entries for "wstyp" */

#define  WSWHILE  0
#define  WSFOR    1
#define  WSDO     2
#define  WSSWITCH 3

/* "switch" label stack */

#define  SWSTSZ   100

/* literal pool */

#define  LITABSZ  2000
#define  LITMAX   LITABSZ-1

/* input line */

#define  LINESIZE 250
#define  LINEMAX  (LINESIZE-1)
#define  MPMAX    LINEMAX

/* macro (define) pool */

#define  MACQSIZE 10000
#define  MACMAX   (MACQSIZE-1)

// Global constants queue

#define	GLOBSIZE		1000
#define	GLOBCHAR		1
#define	GLOBBYTE		2
#define	GLOBINT		3
#define	GLOBLONG		4

typedef struct t_glob {
	char	name[NAMESIZE];
   int	type;
   char	*pp;
} GLOBAL;

/* "include" stack */

#define  INCLSIZ  3

/* statement types (tokens) */

#define  STIF     1
#define  STWHILE  2
#define  STRETURN 3
#define  STBREAK  4
#define  STCONT   5
#define  STASM    6
#define  STEXP    7
#define  STDO     8
#define  STFOR    9
#define  STSWITCH 10

// Added by RK

#define	LABELCOUNTMAX	1000	// max number of labels