277 lines
6.6 KiB
C
277 lines
6.6 KiB
C
/* M A I N P R O G R A M */
|
|
|
|
#include "debug.h"
|
|
|
|
#include <em.h>
|
|
#include <em_mes.h>
|
|
#include <system.h>
|
|
#include <stb.h>
|
|
|
|
#include "LLlex.h"
|
|
#include "Lpars.h"
|
|
#include "class.h"
|
|
#include "const.h"
|
|
#include "def.h"
|
|
#include "f_info.h"
|
|
#include "idf.h"
|
|
#include "input.h"
|
|
#include "main.h"
|
|
#include "node.h"
|
|
#include "required.h"
|
|
#include "tokenname.h"
|
|
#include "type.h"
|
|
#include "scope.h"
|
|
#include "dbsymtab.h"
|
|
|
|
char options[128];
|
|
char *ProgName;
|
|
char *input = "input";
|
|
char *output = "output";
|
|
|
|
label data_label;
|
|
label text_label;
|
|
|
|
struct def *program;
|
|
extern int fp_used; /* set if floating point used */
|
|
|
|
|
|
main(argc, argv)
|
|
register char **argv;
|
|
{
|
|
register int Nargc = 1;
|
|
register char **Nargv = &argv[0];
|
|
|
|
ProgName = *argv++;
|
|
|
|
while( --argc > 0 ) {
|
|
if( **argv == '-' )
|
|
DoOption((*argv++) + 1);
|
|
else
|
|
Nargv[Nargc++] = *argv++;
|
|
}
|
|
Nargv[Nargc] = 0; /* terminate the arg vector */
|
|
if( Nargc < 2 ) {
|
|
fprint(STDERR, "%s: Use a file argument\n", ProgName);
|
|
sys_stop(S_EXIT);
|
|
}
|
|
if(!Compile(Nargv[1], Nargv[2])) sys_stop(S_EXIT);
|
|
sys_stop(S_END);
|
|
}
|
|
|
|
Compile(src, dst)
|
|
char *src, *dst;
|
|
{
|
|
extern struct tokenname tkidf[];
|
|
extern struct tokenname tkstandard[];
|
|
int tk;
|
|
|
|
if( !InsertFile(src, (char **) 0, &src) ) {
|
|
fprint(STDERR, "%s: cannot open %s\n", ProgName, src);
|
|
return 0;
|
|
}
|
|
LineNumber = 1;
|
|
FileName = src;
|
|
init_idf();
|
|
InitCst();
|
|
reserve(tkidf);
|
|
reserve(tkstandard);
|
|
|
|
CheckForLineDirective();
|
|
tk = LLlex(); /* Read the first token and put */
|
|
aside = dot; /* it aside. In this way, options */
|
|
asidetype = toktype; /* inside comments will be seen */
|
|
dot.tk_symb = tk; /* before the program starts. */
|
|
tokenseen = 1;
|
|
|
|
InitScope();
|
|
InitTypes();
|
|
|
|
if( options['c'] ) tkclass['"'] = STSTR;
|
|
if( options['u'] || options['U'] ) {
|
|
class('_') = STIDF;
|
|
inidf['_'] = 1;
|
|
}
|
|
if( tk == '"' || tk == '_' ) {
|
|
PushBack();
|
|
ASIDE = 0;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if( options['l'] ) {
|
|
LexScan();
|
|
return 0; /* running the optimizer is not very useful */
|
|
}
|
|
#endif DEBUG
|
|
C_init(word_size, pointer_size);
|
|
if( !C_open(dst) )
|
|
fatal("couldn't open output file");
|
|
C_magic();
|
|
C_ms_emx(word_size, pointer_size);
|
|
#ifdef DBSYMTAB
|
|
if (options['g']) {
|
|
C_ms_std(FileName, N_SO, 0);
|
|
}
|
|
#endif /* DBSYMTAB */
|
|
AddRequired();
|
|
C_df_dlb(++data_label);
|
|
C_rom_scon(FileName,(arith) strlen(FileName) + 1);
|
|
LLparse();
|
|
C_ms_src((arith) (LineNumber - 1), FileName);
|
|
if( fp_used ) C_ms_flt();
|
|
C_close();
|
|
#ifdef DEBUG
|
|
if( options['I'] ) Info();
|
|
#endif DEBUG
|
|
return !err_occurred;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
LexScan()
|
|
{
|
|
register struct token *tkp = ˙
|
|
extern char *symbol2str();
|
|
|
|
while( LLlex() > 0 ) {
|
|
print(">>> %s ", symbol2str(tkp->tk_symb));
|
|
switch( tkp->tk_symb ) {
|
|
case IDENT:
|
|
print("%s\n", tkp->TOK_IDF->id_text);
|
|
break;
|
|
|
|
case INTEGER:
|
|
print("%ld\n", tkp->TOK_INT);
|
|
break;
|
|
|
|
case REAL:
|
|
print("%s\n", tkp->TOK_REL);
|
|
break;
|
|
|
|
case STRING:
|
|
print("'%s'\n", tkp->TOK_STR);
|
|
break;
|
|
|
|
default:
|
|
print("\n");
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
AddRequired()
|
|
{
|
|
register struct def *df;
|
|
extern struct def *Enter();
|
|
static struct node maxintnode = { 0, 0, Value, 0, { INTEGER, 0 } };
|
|
|
|
/* PROCEDURES */
|
|
|
|
/* File handling procedures, Read(ln) & Write(ln) are handled
|
|
* in the grammar
|
|
*/
|
|
|
|
df = Enter("false", D_ENUM, bool_type, 0);
|
|
df->enm_val = 0;
|
|
df->df_flags |= D_SET;
|
|
bool_type->enm_enums = df;
|
|
df->enm_next = Enter("true", D_ENUM, bool_type, 0);
|
|
df->enm_next->enm_val = 1;
|
|
df->df_flags |= D_SET;
|
|
df->enm_next->enm_next = NULLDEF;
|
|
|
|
(void) Enter("rewrite", D_PROCEDURE, std_type, R_REWRITE);
|
|
(void) Enter("put", D_PROCEDURE, std_type, R_PUT);
|
|
(void) Enter("reset", D_PROCEDURE, std_type, R_RESET);
|
|
(void) Enter("get", D_PROCEDURE, std_type, R_GET);
|
|
(void) Enter("page", D_PROCEDURE, std_type, R_PAGE);
|
|
|
|
/* DYNAMIC ALLOCATION PROCEDURES */
|
|
(void) Enter("new", D_PROCEDURE, std_type, R_NEW);
|
|
(void) Enter("dispose", D_PROCEDURE, std_type, R_DISPOSE);
|
|
if( !options['s'] ) {
|
|
(void) Enter("mark", D_PROCEDURE, std_type, R_MARK);
|
|
(void) Enter("release", D_PROCEDURE, std_type, R_RELEASE);
|
|
}
|
|
|
|
/* MISCELLANEOUS PROCEDURE(S) */
|
|
if( !options['s'] )
|
|
(void) Enter("halt", D_PROCEDURE, std_type, R_HALT);
|
|
|
|
/* TRANSFER PROCEDURES */
|
|
(void) Enter("pack", D_PROCEDURE, std_type, R_PACK);
|
|
(void) Enter("unpack", D_PROCEDURE, std_type, R_UNPACK);
|
|
|
|
/* FUNCTIONS */
|
|
|
|
/* ARITHMETIC FUNCTIONS */
|
|
(void) Enter("abs", D_FUNCTION, std_type, R_ABS);
|
|
(void) Enter("sqr", D_FUNCTION, std_type, R_SQR);
|
|
(void) Enter("sin", D_FUNCTION, std_type, R_SIN);
|
|
(void) Enter("cos", D_FUNCTION, std_type, R_COS);
|
|
(void) Enter("exp", D_FUNCTION, std_type, R_EXP);
|
|
(void) Enter("ln", D_FUNCTION, std_type, R_LN);
|
|
(void) Enter("sqrt", D_FUNCTION, std_type, R_SQRT);
|
|
(void) Enter("arctan", D_FUNCTION, std_type, R_ARCTAN);
|
|
|
|
/* TRANSFER FUNCTIONS */
|
|
(void) Enter("trunc", D_FUNCTION, std_type, R_TRUNC);
|
|
(void) Enter("round", D_FUNCTION, std_type, R_ROUND);
|
|
|
|
/* ORDINAL FUNCTIONS */
|
|
(void) Enter("ord", D_FUNCTION, std_type, R_ORD);
|
|
(void) Enter("chr", D_FUNCTION, std_type, R_CHR);
|
|
(void) Enter("succ", D_FUNCTION, std_type, R_SUCC);
|
|
(void) Enter("pred", D_FUNCTION, std_type, R_PRED);
|
|
|
|
/* BOOLEAN FUNCTIONS */
|
|
(void) Enter("odd", D_FUNCTION, std_type, R_ODD);
|
|
(void) Enter("eof", D_FUNCTION, std_type, R_EOF);
|
|
(void) Enter("eoln", D_FUNCTION, std_type, R_EOLN);
|
|
|
|
/* TYPES */
|
|
(void) Enter("char", D_TYPE, char_type, 0);
|
|
(void) Enter("integer", D_TYPE, int_type, 0);
|
|
(void) Enter("real", D_TYPE, real_type, 0);
|
|
(void) Enter("boolean", D_TYPE, bool_type, 0);
|
|
(void) Enter("text", D_TYPE, text_type, 0);
|
|
(void) Enter("(void)", D_TYPE, void_type, 0);
|
|
|
|
if( options['d'] )
|
|
(void) Enter("long", D_TYPE, long_type, 0);
|
|
if( options['c'] )
|
|
(void) Enter("string", D_TYPE, string_type, 0);
|
|
|
|
/* DIRECTIVES */
|
|
(void) Enter("forward", D_FORWARD, error_type, 0);
|
|
(void) Enter("extern", D_EXTERN, error_type, 0);
|
|
|
|
/* CONSTANTS */
|
|
/* nil is TOKEN and thus part of the grammar */
|
|
|
|
maxintnode.nd_type = int_type;
|
|
maxintnode.nd_INT = max_int; /* defined in cstoper.c */
|
|
df = define(str2idf("maxint", 0), CurrentScope, D_CONST);
|
|
df->df_type = int_type;
|
|
df->con_const = &maxintnode;
|
|
df->df_flags |= D_SET;
|
|
#ifdef DBSYMTAB
|
|
if (options['g']) stb_string(df, D_CONST);
|
|
#endif /* DBSYMTAB */
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
int cntlines;
|
|
|
|
Info()
|
|
{
|
|
extern int cnt_def, cnt_node, cnt_paramlist, cnt_type, cnt_scope,
|
|
cnt_scopelist, cnt_tmpvar, cnt_withdesig,
|
|
cnt_case_hdr, cnt_case_entry;
|
|
|
|
print("\
|
|
%6d def\n%6d node\n%6d paramlist\n%6d type\n%6d scope\n%6d scopelist\n\
|
|
%6d lab\n%6d tmpvar\n%6d withdesig\n%6d casehdr\n%6d caseentry\n",
|
|
cnt_def, cnt_node, cnt_paramlist, cnt_type, cnt_scope, cnt_scopelist, cnt_lab, cnt_tmpvar, cnt_withdesig, cnt_case_hdr, cnt_case_entry);
|
|
print("\nNumber of lines read: %d\n", cntlines);
|
|
}
|
|
#endif
|