50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* $Id$ */
|
|
/*
|
|
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
* See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
*/
|
|
|
|
/*
|
|
* L O C A L S . H
|
|
*/
|
|
|
|
extern local_p *locals; /* table of locals, index is local-number */
|
|
extern short nrlocals; /* number of locals for which we keep ud-info */
|
|
|
|
extern make_localtab(); /* (proc_p p)
|
|
* Analyse the text of procedure p to determine
|
|
* which local variable p has. Make a table of
|
|
* these variables ('locals') and count them
|
|
* ('nrlocals'). Also collect register messages.
|
|
*/
|
|
extern var_nr(); /* (line_p l; short *nr_out;bool *found_out)
|
|
* Compute the 'variable number' of the
|
|
* variable referenced by EM instruction l.
|
|
*/
|
|
extern find_local(); /* (offset off; short *nr_out; bool *found_out)
|
|
* Try to find the local variable at the given
|
|
* offset. Return its local-number.
|
|
*/
|
|
|
|
|
|
/* Every global variable for which ud-info is maintained has
|
|
* a 'global variable number' (o_globnr). Every useful local
|
|
* has a 'local variable number', which is its index in the
|
|
* 'locals' table. All these variables also have a
|
|
* 'variable number'. Conversions exist between these numbers.
|
|
*/
|
|
|
|
#define TO_GLOBAL(v) (v)
|
|
#define TO_LOCAL(v) (v - nrglobals)
|
|
#define GLOB_TO_VARNR(v) (v)
|
|
#define LOC_TO_VARNR(v) (v + nrglobals)
|
|
#define IS_GLOBAL(v) (v <= nrglobals)
|
|
#define IS_LOCAL(v) (v > nrglobals)
|
|
|
|
#define REGVAR(lc) lc->lc_flags |= LCF_REG
|
|
#define IS_REGVAR(lc) (lc->lc_flags & LCF_REG)
|
|
#define BADLC(lc) lc->lc_flags |= LCF_BAD
|
|
#define IS_BADLC(lc) (lc->lc_flags & LCF_BAD)
|
|
|
|
|