Subversion Repositories tms1000

/*

casm.h

CASM is an assembler for the tms1000 processor.

*/

extern int pass;

extern int lineno;

extern int errors;

extern int group;       /* current rom group */

extern int rom;         /* current rom */

extern int pc;          /* current pc */

extern int dsr;         /* delayed select rom */

extern int dsg;         /* delayed select group */

extern char flag_char;  /* used to mark jumps across rom banks */

extern int symtab_flag;

#define OTHER_INST 0

#define ARITH_INST 1

#define TEST_INST  2

extern int last_instruction_type;

#define MAX_LINE 256

extern char linebuf [MAX_LINE];

extern char *lineptr;

#define MAXGROUP 2

#define MAXROM 8

extern t_symtab symtab /*[MAXGROUP] [MAXROM]*/;  /* separate symbol tables for each ROM */

void do_label (char *s);

void emit       (int op);  /* use for instructions that never set carry */

void emit_arith (int op);  /* use for arithmetic instructions that may set carry */

void emit_test  (int op);  /* use for test instructions that

void etarget (int targrom, int targpc);  /* for branch target info */

/*

 * Check that val is in the range [min, max].  If so, return val.

 * If not, issue an error and return min.

 */

int range (int val, int min, int max);

char *newstr (char *orig);

void format_listing (void);

/*

 * print to both listing error buffer and standard error

 *

 * Use this for general messages.  Don't use this for warnings or errors

 * generated by a particular line of the source file.  Use error() or

 * warning() for that.

 */

int err_printf (char *format, ...);

/* generate error or warning messages and increment appropriate counter */

int error   (char *format, ...);

int warning (char *format, ...);

/* generate fatal error message to stderr, doesn't return */

void fatal  (char *format, ...);