2004-03-24 01:48:28 -08:00
|
|
|
/* Small compiler
|
|
|
|
*
|
|
|
|
* Drafted after the Small-C compiler Version 2.01, originally created
|
|
|
|
* by Ron Cain, july 1980, and enhanced by James E. Hendrix.
|
|
|
|
*
|
|
|
|
* This version comes close to a complete rewrite.
|
|
|
|
*
|
|
|
|
* Copyright R. Cain, 1980
|
|
|
|
* Copyright J.E. Hendrix, 1982, 1983
|
|
|
|
* Copyright T. Riemersma, 1997-2003
|
|
|
|
*
|
|
|
|
* Version: $Id$
|
|
|
|
*
|
|
|
|
* This software is provided "as-is", without any express or implied warranty.
|
|
|
|
* In no event will the authors be held liable for any damages arising from
|
|
|
|
* the use of this software.
|
|
|
|
*
|
|
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
|
|
* including commercial applications, and to alter it and redistribute it
|
|
|
|
* freely, subject to the following restrictions:
|
|
|
|
*
|
|
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
|
|
* claim that you wrote the original software. If you use this software in
|
|
|
|
* a product, an acknowledgment in the product documentation would be
|
|
|
|
* appreciated but is not required.
|
|
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
|
|
* misrepresented as being the original software.
|
|
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
|
|
*/
|
2004-04-19 20:50:11 -07:00
|
|
|
#ifndef EMBRYO_CC_SC_H
|
|
|
|
#define EMBRYO_CC_SC_H
|
2004-03-24 01:48:28 -08:00
|
|
|
#include <limits.h>
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include <stdio.h>
|
2004-04-19 20:50:11 -07:00
|
|
|
#include <setjmp.h>
|
2004-03-24 01:48:28 -08:00
|
|
|
#include "embryo_cc_osdefs.h"
|
|
|
|
#include "embryo_cc_amx.h"
|
|
|
|
|
|
|
|
/* Note: the "cell" and "ucell" types are defined in AMX.H */
|
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
#define PUBLIC_CHAR '@' /* character that defines a function "public" */
|
|
|
|
#define CTRL_CHAR '\\' /* default control character */
|
|
|
|
|
|
|
|
#define DIRSEP_CHAR '/' /* directory separator character */
|
|
|
|
|
|
|
|
#define sDIMEN_MAX 2 /* maximum number of array dimensions */
|
|
|
|
#define sDEF_LITMAX 500 /* initial size of the literal pool, in "cells" */
|
|
|
|
#define sLINEMAX 511 /* input line length (in characters) */
|
|
|
|
#define sDEF_AMXSTACK 4096 /* default stack size for AMX files */
|
|
|
|
#define sSTKMAX 80 /* stack for nested #includes and other uses */
|
|
|
|
#define PREPROC_TERM '\x7f' /* termination character for preprocessor expressions (the "DEL" code) */
|
|
|
|
#define sDEF_PREFIX "default.inc" /* default prefix filename */
|
|
|
|
|
|
|
|
typedef void *stkitem; /* type of items stored on the stack */
|
|
|
|
|
|
|
|
typedef struct __s_arginfo
|
|
|
|
{ /* function argument info */
|
|
|
|
char name[sNAMEMAX + 1];
|
|
|
|
char ident; /* iVARIABLE, iREFERENCE, iREFARRAY or iVARARGS */
|
|
|
|
char usage; /* uCONST */
|
|
|
|
int *tags; /* argument tag id. list */
|
|
|
|
int numtags; /* number of tags in the tag list */
|
|
|
|
int dim[sDIMEN_MAX];
|
|
|
|
int numdim; /* number of dimensions */
|
|
|
|
unsigned char hasdefault; /* bit0: is there a default value? bit6: "tagof"; bit7: "sizeof" */
|
|
|
|
union
|
|
|
|
{
|
|
|
|
cell val; /* default value */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
char *symname; /* name of another symbol */
|
|
|
|
short level; /* indirection level for that symbol */
|
|
|
|
} size; /* used for "sizeof" default value */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
cell *data; /* values of default array */
|
|
|
|
int size; /* complete length of default array */
|
|
|
|
int arraysize; /* size to reserve on the heap */
|
|
|
|
cell addr; /* address of the default array in the data segment */
|
|
|
|
} array;
|
|
|
|
} defvalue; /* default value, or pointer to default array */
|
|
|
|
int defvalue_tag; /* tag of the default value */
|
2004-03-24 01:48:28 -08:00
|
|
|
} arginfo;
|
|
|
|
|
|
|
|
/* Equate table, tagname table, library table */
|
2004-04-19 20:50:11 -07:00
|
|
|
typedef struct __s_constvalue
|
|
|
|
{
|
|
|
|
struct __s_constvalue *next;
|
|
|
|
char name[sNAMEMAX + 1];
|
|
|
|
cell value;
|
|
|
|
short index;
|
2004-03-24 01:48:28 -08:00
|
|
|
} constvalue;
|
|
|
|
|
|
|
|
/* Symbol table format
|
|
|
|
*
|
|
|
|
* The symbol name read from the input file is stored in "name", the
|
|
|
|
* value of "addr" is written to the output file. The address in "addr"
|
|
|
|
* depends on the class of the symbol:
|
|
|
|
* global offset into the data segment
|
|
|
|
* local offset relative to the stack frame
|
|
|
|
* label generated hexadecimal number
|
|
|
|
* function offset into code segment
|
|
|
|
*/
|
2004-04-19 20:50:11 -07:00
|
|
|
typedef struct __s_symbol
|
|
|
|
{
|
|
|
|
struct __s_symbol *next;
|
|
|
|
struct __s_symbol *parent; /* hierarchical types (multi-dimensional arrays) */
|
|
|
|
char name[sNAMEMAX + 1];
|
|
|
|
uint32_t hash; /* value derived from name, for quicker searching */
|
|
|
|
cell addr; /* address or offset (or value for constant, index for native function) */
|
|
|
|
char vclass; /* sLOCAL if "addr" refers to a local symbol */
|
|
|
|
char ident; /* see below for possible values */
|
|
|
|
char usage; /* see below for possible values */
|
|
|
|
int compound; /* compound level (braces nesting level) */
|
|
|
|
int tag; /* tagname id */
|
|
|
|
union
|
|
|
|
{
|
|
|
|
int declared; /* label: how many local variables are declared */
|
|
|
|
int idxtag; /* array: tag of array indices */
|
|
|
|
constvalue *lib; /* native function: library it is part of *///??? use "stringlist"
|
|
|
|
} x; /* 'x' for 'extra' */
|
|
|
|
union
|
|
|
|
{
|
|
|
|
arginfo *arglist; /* types of all parameters for functions */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
cell length; /* arrays: length (size) */
|
|
|
|
short level; /* number of dimensions below this level */
|
|
|
|
} array;
|
|
|
|
} dim; /* for 'dimension', both functions and arrays */
|
|
|
|
int fnumber; /* static global variables: file number in which the declaration is visible */
|
|
|
|
struct __s_symbol **refer; /* referrer list, functions that "use" this symbol */
|
|
|
|
int numrefers; /* number of entries in the referrer list */
|
2004-03-24 01:48:28 -08:00
|
|
|
} symbol;
|
|
|
|
|
|
|
|
/* Possible entries for "ident". These are used in the "symbol", "value"
|
|
|
|
* and arginfo structures. Not every constant is valid for every use.
|
|
|
|
* In an argument list, the list is terminated with a "zero" ident; labels
|
|
|
|
* cannot be passed as function arguments, so the value 0 is overloaded.
|
|
|
|
*/
|
|
|
|
#define iLABEL 0
|
2004-04-19 20:50:11 -07:00
|
|
|
#define iVARIABLE 1 /* cell that has an address and that can be fetched directly (lvalue) */
|
|
|
|
#define iREFERENCE 2 /* iVARIABLE, but must be dereferenced */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define iARRAY 3
|
2004-04-19 20:50:11 -07:00
|
|
|
#define iREFARRAY 4 /* an array passed by reference (i.e. a pointer) */
|
|
|
|
#define iARRAYCELL 5 /* array element, cell that must be fetched indirectly */
|
|
|
|
#define iARRAYCHAR 6 /* array element, character from cell from array */
|
|
|
|
#define iEXPRESSION 7 /* expression result, has no address (rvalue) */
|
|
|
|
#define iCONSTEXPR 8 /* constant expression (or constant symbol) */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define iFUNCTN 9
|
2004-04-19 20:50:11 -07:00
|
|
|
#define iREFFUNC 10 /* function passed as a parameter */
|
|
|
|
#define iVARARGS 11 /* function specified ... as argument(s) */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* Possible entries for "usage"
|
|
|
|
*
|
|
|
|
* This byte is used as a serie of bits, the syntax is different for
|
|
|
|
* functions and other symbols:
|
|
|
|
*
|
|
|
|
* VARIABLE
|
|
|
|
* bits: 0 (uDEFINE) the variable is defined in the source file
|
|
|
|
* 1 (uREAD) the variable is "read" (accessed) in the source file
|
|
|
|
* 2 (uWRITTEN) the variable is altered (assigned a value)
|
|
|
|
* 3 (uCONST) the variable is constant (may not be assigned to)
|
|
|
|
* 4 (uPUBLIC) the variable is public
|
|
|
|
* 6 (uSTOCK) the variable is discardable (without warning)
|
|
|
|
*
|
|
|
|
* FUNCTION
|
|
|
|
* bits: 0 (uDEFINE) the function is defined ("implemented") in the source file
|
|
|
|
* 1 (uREAD) the function is invoked in the source file
|
|
|
|
* 2 (uRETVALUE) the function returns a value (or should return a value)
|
|
|
|
* 3 (uPROTOTYPED) the function was prototyped
|
|
|
|
* 4 (uPUBLIC) the function is public
|
|
|
|
* 5 (uNATIVE) the function is native
|
|
|
|
* 6 (uSTOCK) the function is discardable (without warning)
|
|
|
|
* 7 (uMISSING) the function is not implemented in this source file
|
|
|
|
*
|
|
|
|
* CONSTANT
|
|
|
|
* bits: 0 (uDEFINE) the symbol is defined in the source file
|
|
|
|
* 1 (uREAD) the constant is "read" (accessed) in the source file
|
|
|
|
* 3 (uPREDEF) the constant is pre-defined and should be kept between passes
|
|
|
|
*/
|
|
|
|
#define uDEFINE 0x01
|
|
|
|
#define uREAD 0x02
|
|
|
|
#define uWRITTEN 0x04
|
2004-04-19 20:50:11 -07:00
|
|
|
#define uRETVALUE 0x04 /* function returns (or should return) a value */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define uCONST 0x08
|
|
|
|
#define uPROTOTYPED 0x08
|
2004-04-19 20:50:11 -07:00
|
|
|
#define uPREDEF 0x08 /* constant is pre-defined */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define uPUBLIC 0x10
|
|
|
|
#define uNATIVE 0x20
|
|
|
|
#define uSTOCK 0x40
|
|
|
|
#define uMISSING 0x80
|
|
|
|
/* uRETNONE is not stored in the "usage" field of a symbol. It is
|
|
|
|
* used during parsing a function, to detect a mix of "return;" and
|
|
|
|
* "return value;" in a few special cases.
|
|
|
|
*/
|
|
|
|
#define uRETNONE 0x10
|
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
#define uTAGOF 0x40 /* set in the "hasdefault" field of the arginfo struct */
|
|
|
|
#define uSIZEOF 0x80 /* set in the "hasdefault" field of the arginfo struct */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
#define uMAINFUNC "main"
|
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
#define sGLOBAL 0 /* global/local variable/constant class */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define sLOCAL 1
|
2004-04-19 20:50:11 -07:00
|
|
|
#define sSTATIC 2 /* global life, local scope */
|
|
|
|
|
|
|
|
typedef struct
|
|
|
|
{
|
|
|
|
symbol *sym; /* symbol in symbol table, NULL for (constant) expression */
|
|
|
|
cell constval; /* value of the constant expression (if ident==iCONSTEXPR)
|
|
|
|
* also used for the size of a literal array */
|
|
|
|
int tag; /* tagname id (of the expression) */
|
|
|
|
char ident; /* iCONSTEXPR, iVARIABLE, iARRAY, iARRAYCELL,
|
|
|
|
* iEXPRESSION or iREFERENCE */
|
|
|
|
char boolresult; /* boolean result for relational operators */
|
|
|
|
cell *arrayidx; /* last used array indices, for checking self assignment */
|
2004-03-24 01:48:28 -08:00
|
|
|
} value;
|
|
|
|
|
|
|
|
/* "while" statement queue (also used for "for" and "do - while" loops) */
|
2004-04-19 20:50:11 -07:00
|
|
|
enum
|
|
|
|
{
|
|
|
|
wqBRK, /* used to restore stack for "break" */
|
|
|
|
wqCONT, /* used to restore stack for "continue" */
|
|
|
|
wqLOOP, /* loop start label number */
|
|
|
|
wqEXIT, /* loop exit label number (jump if false) */
|
|
|
|
/* --- */
|
|
|
|
wqSIZE /* "while queue" size */
|
2004-03-24 01:48:28 -08:00
|
|
|
};
|
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
#define wqTABSZ (24*wqSIZE) /* 24 nested loop statements */
|
|
|
|
|
|
|
|
enum
|
|
|
|
{
|
|
|
|
statIDLE, /* not compiling yet */
|
|
|
|
statFIRST, /* first pass */
|
|
|
|
statWRITE, /* writing output */
|
|
|
|
statSKIP, /* skipping output */
|
2004-03-24 01:48:28 -08:00
|
|
|
};
|
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
typedef struct __s_stringlist
|
|
|
|
{
|
|
|
|
struct __s_stringlist *next;
|
|
|
|
char *line;
|
2004-03-24 01:48:28 -08:00
|
|
|
} stringlist;
|
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
typedef struct __s_stringpair
|
|
|
|
{
|
|
|
|
struct __s_stringpair *next;
|
|
|
|
char *first;
|
|
|
|
char *second;
|
|
|
|
int matchlength;
|
2004-03-24 01:48:28 -08:00
|
|
|
} stringpair;
|
|
|
|
|
|
|
|
/* macros for code generation */
|
2004-04-19 20:50:11 -07:00
|
|
|
#define opcodes(n) ((n)*sizeof(cell)) /* opcode size */
|
|
|
|
#define opargs(n) ((n)*sizeof(cell)) /* size of typical argument */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* Tokens recognized by lex()
|
|
|
|
* Some of these constants are assigned as well to the variable "lastst"
|
|
|
|
*/
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tFIRST 256 /* value of first multi-character operator */
|
|
|
|
#define tMIDDLE 279 /* value of last multi-character operator */
|
|
|
|
#define tLAST 320 /* value of last multi-character match-able token */
|
2004-03-24 01:48:28 -08:00
|
|
|
/* multi-character operators */
|
2004-04-19 20:50:11 -07:00
|
|
|
#define taMULT 256 /* *= */
|
|
|
|
#define taDIV 257 /* /= */
|
|
|
|
#define taMOD 258 /* %= */
|
|
|
|
#define taADD 259 /* += */
|
|
|
|
#define taSUB 260 /* -= */
|
|
|
|
#define taSHL 261 /* <<= */
|
|
|
|
#define taSHRU 262 /* >>>= */
|
|
|
|
#define taSHR 263 /* >>= */
|
|
|
|
#define taAND 264 /* &= */
|
|
|
|
#define taXOR 265 /* ^= */
|
|
|
|
#define taOR 266 /* |= */
|
|
|
|
#define tlOR 267 /* || */
|
|
|
|
#define tlAND 268 /* && */
|
|
|
|
#define tlEQ 269 /* == */
|
|
|
|
#define tlNE 270 /* != */
|
|
|
|
#define tlLE 271 /* <= */
|
|
|
|
#define tlGE 272 /* >= */
|
|
|
|
#define tSHL 273 /* << */
|
|
|
|
#define tSHRU 274 /* >>> */
|
|
|
|
#define tSHR 275 /* >> */
|
|
|
|
#define tINC 276 /* ++ */
|
|
|
|
#define tDEC 277 /* -- */
|
|
|
|
#define tELLIPS 278 /* ... */
|
|
|
|
#define tDBLDOT 279 /* .. */
|
2004-03-24 01:48:28 -08:00
|
|
|
/* reserved words (statements) */
|
|
|
|
#define tASSERT 280
|
|
|
|
#define tBREAK 281
|
|
|
|
#define tCASE 282
|
|
|
|
#define tCHAR 283
|
|
|
|
#define tCONST 284
|
|
|
|
#define tCONTINUE 285
|
|
|
|
#define tDEFAULT 286
|
|
|
|
#define tDEFINED 287
|
|
|
|
#define tDO 288
|
|
|
|
#define tELSE 289
|
|
|
|
#define tENUM 290
|
|
|
|
#define tEXIT 291
|
|
|
|
#define tFOR 292
|
|
|
|
#define tFORWARD 293
|
|
|
|
#define tGOTO 294
|
|
|
|
#define tIF 295
|
|
|
|
#define tNATIVE 296
|
|
|
|
#define tNEW 297
|
|
|
|
#define tOPERATOR 298
|
|
|
|
#define tPUBLIC 299
|
|
|
|
#define tRETURN 300
|
|
|
|
#define tSIZEOF 301
|
|
|
|
#define tSLEEP 302
|
|
|
|
#define tSTATIC 303
|
|
|
|
#define tSTOCK 304
|
|
|
|
#define tSWITCH 305
|
|
|
|
#define tTAGOF 306
|
|
|
|
#define tWHILE 307
|
|
|
|
/* compiler directives */
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tpASSERT 308 /* #assert */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define tpDEFINE 309
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tpELSE 310 /* #else */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define tpEMIT 311
|
|
|
|
#define tpENDIF 312
|
|
|
|
#define tpENDINPUT 313
|
|
|
|
#define tpENDSCRPT 314
|
|
|
|
#define tpFILE 315
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tpIF 316 /* #if */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define tINCLUDE 317
|
|
|
|
#define tpLINE 318
|
|
|
|
#define tpPRAGMA 319
|
|
|
|
#define tpUNDEF 320
|
|
|
|
/* semicolon is a special case, because it can be optional */
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tTERM 321 /* semicolon or newline */
|
|
|
|
#define tENDEXPR 322 /* forced end of expression */
|
2004-03-24 01:48:28 -08:00
|
|
|
/* other recognized tokens */
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tNUMBER 323 /* integer number */
|
|
|
|
#define tRATIONAL 324 /* rational number */
|
2004-03-24 01:48:28 -08:00
|
|
|
#define tSYMBOL 325
|
|
|
|
#define tLABEL 326
|
|
|
|
#define tSTRING 327
|
2004-04-19 20:50:11 -07:00
|
|
|
#define tEXPR 328 /* for assigment to "lastst" only */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* (reversed) evaluation of staging buffer */
|
|
|
|
#define sSTARTREORDER 1
|
|
|
|
#define sENDREORDER 2
|
2004-04-19 20:50:11 -07:00
|
|
|
#define sEXPRSTART 0xc0 /* top 2 bits set, rest is free */
|
|
|
|
#define sMAXARGS 64 /* relates to the bit pattern of sEXPRSTART */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* codes for ffabort() */
|
2004-04-19 20:50:11 -07:00
|
|
|
#define xEXIT 1 /* exit code in PRI */
|
|
|
|
#define xASSERTION 2 /* abort caused by failing assertion */
|
|
|
|
#define xSTACKERROR 3 /* stack/heap overflow */
|
|
|
|
#define xBOUNDSERROR 4 /* array index out of bounds */
|
|
|
|
#define xMEMACCESS 5 /* data access error */
|
|
|
|
#define xINVINSTR 6 /* invalid instruction */
|
|
|
|
#define xSTACKUNDERFLOW 7 /* stack underflow */
|
|
|
|
#define xHEAPUNDERFLOW 8 /* heap underflow */
|
|
|
|
#define xCALLBACKERR 9 /* no, or invalid, callback */
|
|
|
|
#define xSLEEP 12 /* sleep, exit code in PRI, tag in ALT */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* Miscellaneous */
|
|
|
|
#if !defined TRUE
|
2004-04-19 20:50:11 -07:00
|
|
|
#define FALSE 0
|
|
|
|
#define TRUE 1
|
2004-03-24 01:48:28 -08:00
|
|
|
#endif
|
2004-04-19 20:50:11 -07:00
|
|
|
#define sIN_CSEG 1 /* if parsing CODE */
|
|
|
|
#define sIN_DSEG 2 /* if parsing DATA */
|
|
|
|
#define sCHKBOUNDS 1 /* bit position in "debug" variable: check bounds */
|
|
|
|
#define sSYMBOLIC 2 /* bit position in "debug" variable: symbolic info */
|
|
|
|
#define sNOOPTIMIZE 4 /* bit position in "debug" variable: no optimization */
|
|
|
|
#define sRESET 0 /* reset error flag */
|
|
|
|
#define sFORCESET 1 /* force error flag on */
|
|
|
|
#define sEXPRMARK 2 /* mark start of expression */
|
|
|
|
#define sEXPRRELEASE 3 /* mark end of expression */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
#if INT_MAX<0x8000u
|
2004-04-19 20:50:11 -07:00
|
|
|
#define PUBLICTAG 0x8000u
|
|
|
|
#define FIXEDTAG 0x4000u
|
2004-03-24 01:48:28 -08:00
|
|
|
#else
|
2004-04-19 20:50:11 -07:00
|
|
|
#define PUBLICTAG 0x80000000Lu
|
|
|
|
#define FIXEDTAG 0x40000000Lu
|
2004-03-24 01:48:28 -08:00
|
|
|
#endif
|
|
|
|
#define TAGMASK (~PUBLICTAG)
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Functions you call from the "driver" program
|
|
|
|
*/
|
2004-04-19 20:50:11 -07:00
|
|
|
int sc_compile(int argc, char **argv);
|
|
|
|
int sc_addconstant(char *name, cell value, int tag);
|
|
|
|
int sc_addtag(char *name);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Functions called from the compiler (to be implemented by you)
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* general console output */
|
2004-04-19 20:50:11 -07:00
|
|
|
int sc_printf(const char *message, ...);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* error report function */
|
2004-04-19 20:50:11 -07:00
|
|
|
int sc_error(int number, char *message, char *filename,
|
|
|
|
int firstline, int lastline, va_list argptr);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* input from source file */
|
2004-04-19 20:50:11 -07:00
|
|
|
void *sc_opensrc(char *filename); /* reading only */
|
|
|
|
void sc_closesrc(void *handle); /* never delete */
|
|
|
|
void sc_resetsrc(void *handle, void *position); /* reset to a position marked earlier */
|
|
|
|
char *sc_readsrc(void *handle, char *target, int maxchars);
|
|
|
|
void *sc_getpossrc(void *handle); /* mark the current position */
|
|
|
|
int sc_eofsrc(void *handle);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* output to intermediate (.ASM) file */
|
2004-04-19 20:50:11 -07:00
|
|
|
void *sc_openasm(char *filename); /* read/write */
|
|
|
|
void sc_closeasm(void *handle, int deletefile);
|
|
|
|
void sc_resetasm(void *handle);
|
|
|
|
int sc_writeasm(void *handle, char *str);
|
|
|
|
char *sc_readasm(void *handle, char *target, int maxchars);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* output to binary (.AMX) file */
|
2004-04-19 20:50:11 -07:00
|
|
|
void *sc_openbin(char *filename);
|
|
|
|
void sc_closebin(void *handle, int deletefile);
|
|
|
|
void sc_resetbin(void *handle);
|
|
|
|
int sc_writebin(void *handle, void *buffer, int size);
|
|
|
|
long sc_lengthbin(void *handle); /* return the length of the file */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* by default, functions and variables used in throughout the compiler
|
|
|
|
* files are "external"
|
|
|
|
*/
|
|
|
|
#if !defined SC_FUNC
|
2004-04-19 20:50:11 -07:00
|
|
|
#define SC_FUNC
|
2004-03-24 01:48:28 -08:00
|
|
|
#endif
|
|
|
|
#if !defined SC_VDECL
|
2004-04-19 20:50:11 -07:00
|
|
|
#define SC_VDECL extern
|
2004-03-24 01:48:28 -08:00
|
|
|
#endif
|
|
|
|
#if !defined SC_VDEFINE
|
2004-04-19 20:50:11 -07:00
|
|
|
#define SC_VDEFINE
|
2004-03-24 01:48:28 -08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/* function prototypes in SC1.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
void set_extension(char *filename, char *extension, int force);
|
|
|
|
symbol *fetchfunc(char *name, int tag);
|
|
|
|
char *operator_symname(char *symname, char *opername, int tag1,
|
|
|
|
int tag2, int numtags, int resulttag);
|
|
|
|
char *funcdisplayname(char *dest, char *funcname);
|
|
|
|
int constexpr(cell * val, int *tag);
|
|
|
|
constvalue *append_constval(constvalue * table, char *name, cell val,
|
|
|
|
short index);
|
|
|
|
constvalue *find_constval(constvalue * table, char *name, short index);
|
|
|
|
void delete_consttable(constvalue * table);
|
|
|
|
void add_constant(char *name, cell val, int vclass, int tag);
|
|
|
|
void exporttag(int tag);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SC2.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
void pushstk(stkitem val);
|
|
|
|
stkitem popstk(void);
|
|
|
|
int plungequalifiedfile(char *name); /* explicit path included */
|
|
|
|
int plungefile(char *name, int try_currentpath, int try_includepaths); /* search through "include" paths */
|
|
|
|
void preprocess(void);
|
|
|
|
void lexinit(void);
|
|
|
|
int lex(cell * lexvalue, char **lexsym);
|
|
|
|
void lexpush(void);
|
|
|
|
void lexclr(int clreol);
|
|
|
|
int matchtoken(int token);
|
|
|
|
int tokeninfo(cell * val, char **str);
|
|
|
|
int needtoken(int token);
|
|
|
|
void stowlit(cell value);
|
|
|
|
int alphanum(char c);
|
|
|
|
int ishex(char c);
|
|
|
|
void delete_symbol(symbol * root, symbol * sym);
|
|
|
|
void delete_symbols(symbol * root, int level, int del_labels,
|
|
|
|
int delete_functions);
|
|
|
|
int refer_symbol(symbol * entry, symbol * bywhom);
|
|
|
|
void markusage(symbol * sym, int usage);
|
|
|
|
uint32_t namehash(char *name);
|
|
|
|
symbol *findglb(char *name);
|
|
|
|
symbol *findloc(char *name);
|
|
|
|
symbol *findconst(char *name);
|
|
|
|
symbol *finddepend(symbol * parent);
|
|
|
|
symbol *addsym(char *name, cell addr, int ident, int vclass,
|
|
|
|
int tag, int usage);
|
|
|
|
symbol *addvariable(char *name, cell addr, int ident, int vclass,
|
|
|
|
int tag, int dim[], int numdim, int idxtag[]);
|
|
|
|
int getlabel(void);
|
|
|
|
char *itoh(ucell val);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SC3.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
int check_userop(void (*oper) (void), int tag1, int tag2,
|
|
|
|
int numparam, value * lval, int *resulttag);
|
|
|
|
int matchtag(int formaltag, int actualtag, int allowcoerce);
|
|
|
|
int expression(int *constant, cell * val, int *tag,
|
|
|
|
int chkfuncresult);
|
|
|
|
int hier14(value * lval1); /* the highest expression level */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SC4.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
void writeleader(void);
|
|
|
|
void writetrailer(void);
|
|
|
|
void begcseg(void);
|
|
|
|
void begdseg(void);
|
|
|
|
void setactivefile(int fnumber);
|
|
|
|
cell nameincells(char *name);
|
|
|
|
void setfile(char *name, int fileno);
|
|
|
|
void setline(int line, int fileno);
|
|
|
|
void setfiledirect(char *name);
|
|
|
|
void setlinedirect(int line);
|
|
|
|
void setlabel(int index);
|
|
|
|
void endexpr(int fullexpr);
|
|
|
|
void startfunc(char *fname);
|
|
|
|
void endfunc(void);
|
|
|
|
void alignframe(int numbytes);
|
|
|
|
void defsymbol(char *name, int ident, int vclass, cell offset,
|
|
|
|
int tag);
|
|
|
|
void symbolrange(int level, cell size);
|
|
|
|
void rvalue(value * lval);
|
|
|
|
void address(symbol * ptr);
|
|
|
|
void store(value * lval);
|
|
|
|
void memcopy(cell size);
|
|
|
|
void copyarray(symbol * sym, cell size);
|
|
|
|
void fillarray(symbol * sym, cell size, cell value);
|
|
|
|
void const1(cell val);
|
|
|
|
void const2(cell val);
|
|
|
|
void moveto1(void);
|
|
|
|
void push1(void);
|
|
|
|
void push2(void);
|
|
|
|
void pushval(cell val);
|
|
|
|
void pop1(void);
|
|
|
|
void pop2(void);
|
|
|
|
void swap1(void);
|
|
|
|
void ffswitch(int label);
|
|
|
|
void ffcase(cell value, char *labelname, int newtable);
|
|
|
|
void ffcall(symbol * sym, int numargs);
|
|
|
|
void ffret(void);
|
|
|
|
void ffabort(int reason);
|
|
|
|
void ffbounds(cell size);
|
|
|
|
void jumplabel(int number);
|
|
|
|
void defstorage(void);
|
|
|
|
void modstk(int delta);
|
|
|
|
void setstk(cell value);
|
|
|
|
void modheap(int delta);
|
|
|
|
void setheap_pri(void);
|
|
|
|
void setheap(cell value);
|
|
|
|
void cell2addr(void);
|
|
|
|
void cell2addr_alt(void);
|
|
|
|
void addr2cell(void);
|
|
|
|
void char2addr(void);
|
|
|
|
void charalign(void);
|
|
|
|
void addconst(cell value);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* Code generation functions for arithmetic operators.
|
|
|
|
*
|
|
|
|
* Syntax: o[u|s|b]_name
|
|
|
|
* | | | +--- name of operator
|
|
|
|
* | | +----- underscore
|
|
|
|
* | +--------- "u"nsigned operator, "s"igned operator or "b"oth
|
|
|
|
* +------------- "o"perator
|
|
|
|
*/
|
2004-04-19 20:50:11 -07:00
|
|
|
void os_mult(void); /* multiplication (signed) */
|
|
|
|
void os_div(void); /* division (signed) */
|
|
|
|
void os_mod(void); /* modulus (signed) */
|
|
|
|
void ob_add(void); /* addition */
|
|
|
|
void ob_sub(void); /* subtraction */
|
|
|
|
void ob_sal(void); /* shift left (arithmetic) */
|
|
|
|
void os_sar(void); /* shift right (arithmetic, signed) */
|
|
|
|
void ou_sar(void); /* shift right (logical, unsigned) */
|
|
|
|
void ob_or(void); /* bitwise or */
|
|
|
|
void ob_xor(void); /* bitwise xor */
|
|
|
|
void ob_and(void); /* bitwise and */
|
|
|
|
void ob_eq(void); /* equality */
|
|
|
|
void ob_ne(void); /* inequality */
|
|
|
|
void relop_prefix(void);
|
|
|
|
void relop_suffix(void);
|
|
|
|
void os_le(void); /* less or equal (signed) */
|
|
|
|
void os_ge(void); /* greater or equal (signed) */
|
|
|
|
void os_lt(void); /* less (signed) */
|
|
|
|
void os_gt(void); /* greater (signed) */
|
|
|
|
|
|
|
|
void lneg(void);
|
|
|
|
void neg(void);
|
|
|
|
void invert(void);
|
|
|
|
void nooperation(void);
|
|
|
|
void inc(value * lval);
|
|
|
|
void dec(value * lval);
|
|
|
|
void jmp_ne0(int number);
|
|
|
|
void jmp_eq0(int number);
|
|
|
|
void outval(cell val, int newline);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SC5.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
int error(int number, ...);
|
|
|
|
void errorset(int code);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SC6.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
void assemble(FILE * fout, FILE * fin);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SC7.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
void stgbuffer_cleanup(void);
|
|
|
|
void stgmark(char mark);
|
|
|
|
void stgwrite(char *st);
|
|
|
|
void stgout(int index);
|
|
|
|
void stgdel(int index, cell code_index);
|
|
|
|
int stgget(int *index, cell * code_index);
|
|
|
|
void stgset(int onoff);
|
|
|
|
int phopt_init(void);
|
|
|
|
int phopt_cleanup(void);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* function prototypes in SCLIST.C */
|
2004-04-19 20:50:11 -07:00
|
|
|
char *duplicatestring(const char *sourcestring);
|
|
|
|
stringpair *insert_alias(char *name, char *alias);
|
|
|
|
stringpair *find_alias(char *name);
|
|
|
|
int lookup_alias(char *target, char *name);
|
|
|
|
void delete_aliastable(void);
|
|
|
|
stringlist *insert_path(char *path);
|
|
|
|
char *get_path(int index);
|
|
|
|
void delete_pathtable(void);
|
|
|
|
stringpair *insert_subst(char *pattern, char *substitution,
|
|
|
|
int prefixlen);
|
|
|
|
int get_subst(int index, char **pattern, char **substitution);
|
|
|
|
stringpair *find_subst(char *name, int length);
|
|
|
|
int delete_subst(char *name, int length);
|
|
|
|
void delete_substtable(void);
|
2004-03-24 01:48:28 -08:00
|
|
|
|
|
|
|
/* external variables (defined in scvars.c) */
|
2004-04-19 20:50:11 -07:00
|
|
|
extern symbol loctab; /* local symbol table */
|
|
|
|
extern symbol glbtab; /* global symbol table */
|
|
|
|
extern cell *litq; /* the literal queue */
|
|
|
|
extern char pline[]; /* the line read from the input file */
|
|
|
|
extern char *lptr; /* points to the current position in "pline" */
|
|
|
|
extern constvalue tagname_tab; /* tagname table */
|
|
|
|
extern constvalue libname_tab; /* library table (#pragma library "..." syntax) *///??? use "stringlist" type
|
|
|
|
extern constvalue *curlibrary; /* current library */
|
|
|
|
extern symbol *curfunc; /* pointer to current function */
|
|
|
|
extern char *inpfname; /* name of the file currently read from */
|
|
|
|
extern char outfname[]; /* output file name */
|
|
|
|
extern char errfname[]; /* error file name */
|
|
|
|
extern char sc_ctrlchar; /* the control character (or escape character) */
|
|
|
|
extern int litidx; /* index to literal table */
|
|
|
|
extern int litmax; /* current size of the literal table */
|
|
|
|
extern int stgidx; /* index to the staging buffer */
|
|
|
|
extern int labnum; /* number of (internal) labels */
|
|
|
|
extern int staging; /* true if staging output */
|
|
|
|
extern cell declared; /* number of local cells declared */
|
|
|
|
extern cell glb_declared; /* number of global cells declared */
|
|
|
|
extern cell code_idx; /* number of bytes with generated code */
|
|
|
|
extern int ntv_funcid; /* incremental number of native function */
|
|
|
|
extern int errnum; /* number of errors */
|
|
|
|
extern int warnnum; /* number of warnings */
|
|
|
|
extern int sc_debug; /* debug/optimization options (bit field) */
|
|
|
|
extern int charbits; /* number of bits for a character */
|
|
|
|
extern int sc_packstr; /* strings are packed by default? */
|
|
|
|
extern int sc_asmfile; /* create .ASM file? */
|
|
|
|
extern int sc_listing; /* create .LST file? */
|
|
|
|
extern int sc_compress; /* compress bytecode? */
|
|
|
|
extern int sc_needsemicolon; /* semicolon required to terminate expressions? */
|
|
|
|
extern int sc_dataalign; /* data alignment value */
|
|
|
|
extern int sc_alignnext; /* must frame of the next function be aligned? */
|
|
|
|
extern int curseg; /* 1 if currently parsing CODE, 2 if parsing DATA */
|
|
|
|
extern cell sc_stksize; /* stack size */
|
|
|
|
extern int freading; /* is there an input file ready for reading? */
|
|
|
|
extern int fline; /* the line number in the current file */
|
|
|
|
extern int fnumber; /* number of files in the file table (debugging) */
|
|
|
|
extern int fcurrent; /* current file being processed (debugging) */
|
|
|
|
extern int intest; /* true if inside a test */
|
|
|
|
extern int sideeffect; /* true if an expression causes a side-effect */
|
|
|
|
extern int stmtindent; /* current indent of the statement */
|
|
|
|
extern int indent_nowarn; /* skip warning "217 loose indentation" */
|
|
|
|
extern int sc_tabsize; /* number of spaces that a TAB represents */
|
|
|
|
extern int sc_allowtags; /* allow/detect tagnames in lex() */
|
|
|
|
extern int sc_status; /* read/write status */
|
|
|
|
extern int sc_rationaltag; /* tag for rational numbers */
|
|
|
|
extern int rational_digits; /* number of fractional digits */
|
|
|
|
|
|
|
|
extern FILE *inpf; /* file read from (source or include) */
|
|
|
|
extern FILE *inpf_org; /* main source file */
|
|
|
|
extern FILE *outf; /* file written to */
|
|
|
|
|
|
|
|
extern jmp_buf errbuf; /* target of longjmp() on a fatal error */
|
2004-03-24 01:48:28 -08:00
|
|
|
|
2004-04-19 20:50:11 -07:00
|
|
|
#endif
|