/*
- * Copyright (C) 2012
- * Dale Weiler
+ * Copyright (C) 2012
+ * Dale Weiler
+ * Wolfgang Bumiller
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
*/
#ifndef GMQCC_HDR
#define GMQCC_HDR
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
#include <stdio.h>
+#include <ctype.h>
+
+/*
+ * Disable some over protective warnings in visual studio because fixing them is a waste
+ * of my time.
+ */
+#ifdef _MSC_VER
+# pragma warning(disable : 4244 ) /* conversion from 'int' to 'float', possible loss of data */
+# pragma warning(disable : 4018 ) /* signed/unsigned mismatch */
+#endif
+
+#define GMQCC_VERSION_MAJOR 0
+#define GMQCC_VERSION_MINOR 3
+#define GMQCC_VERSION_PATCH 0
+#define GMQCC_VERSION_BUILD(J,N,P) (((J)<<16)|((N)<<8)|(P))
+#define GMQCC_VERSION \
+ GMQCC_VERSION_BUILD(GMQCC_VERSION_MAJOR, GMQCC_VERSION_MINOR, GMQCC_VERSION_PATCH)
+
+/*
+ * We cannoy rely on C99 at all, since compilers like MSVC
+ * simply don't support it. We define our own boolean type
+ * as a result (since we cannot include <stdbool.h>). For
+ * compilers that are in 1999 mode (C99 compliant) we can use
+ * the language keyword _Bool which can allow for better code
+ * on GCC and GCC-like compilers, opposed to `int`.
+ */
+#ifndef __cplusplus
+# ifdef false
+# undef false
+# endif /* !false */
+# ifdef true
+# undef true
+# endif /* !true */
+# define false (0)
+# define true (1)
+# ifdef __STDC_VERSION__
+# if __STDC_VERSION__ < 199901L && __GNUC__ < 3
+ typedef int bool;
+# else
+ typedef _Bool bool;
+# endif
+# else
+ typedef int bool;
+# endif /* !__STDC_VERSION__ */
+#endif /* !__cplusplus */
+
+
+
+/*
+ * Of some functions which are generated we want to make sure
+ * that the result isn't ignored. To find such function calls,
+ * we use this macro.
+ */
+#if defined(__GNUC__) || defined(__CLANG__)
+# define GMQCC_WARN __attribute__((warn_unused_result))
+#else
+# define GMQCC_WARN
+#endif
+/*
+ * This is a hack to silent clang regarding empty
+ * body if statements.
+ */
+#define GMQCC_SUPPRESS_EMPTY_BODY do { } while (0)
+
+/*
+ * Inline is not supported in < C90, however some compilers
+ * like gcc and clang might have an inline attribute we can
+ * use if present.
+ */
+#ifdef __STDC_VERSION__
+# if __STDC_VERSION__ < 199901L
+# if defined(__GNUC__) || defined (__CLANG__)
+# if __GNUC__ < 2
+# define GMQCC_INLINE
+# else
+# define GMQCC_INLINE __attribute__ ((always_inline))
+# endif
+# else
+# define GMQCC_INLINE
+# endif
+# else
+# define GMQCC_INLINE inline
+# endif
+/*
+ * Visual studio has __forcinline we can use. So lets use that
+ * I suspect it also has just __inline of some sort, but our use
+ * of inline is correct (not guessed), WE WANT IT TO BE INLINE
+ */
+#elif defined(_MSC_VER)
+# define GMQCC_INLINE __forceinline
+#else
+# define GMQCC_INLINE
+#endif /* !__STDC_VERSION__ */
+
+/*
+ * noreturn is present in GCC and clang
+ * it's required for _ast_node_destory otherwise -Wmissing-noreturn
+ * in clang complains about there being no return since abort() is
+ * called.
+ */
+#if (defined(__GNUC__) && __GNUC__ >= 2) || defined(__CLANG__)
+# define GMQCC_NORETURN __attribute__ ((noreturn))
+#else
+# define GMQCC_NORETURN
+#endif
+
+#ifndef _MSC_VER
+# include <stdint.h>
+#else
+ typedef unsigned __int8 uint8_t;
+ typedef unsigned __int16 uint16_t;
+ typedef unsigned __int32 uint32_t;
+ typedef unsigned __int64 uint64_t;
+
+ typedef __int16 int16_t;
+ typedef __int32 int32_t;
+ typedef __int64 int64_t;
+#endif
-/* The types supported by the language */
-#define TYPE_VOID 0
-#define TYPE_STRING 1
-#define TYPE_FLOAT 2
-#define TYPE_VECTOR 3
-#define TYPE_ENTITY 4
-#define TYPE_FIELD 5
-#define TYPE_FUNCTION 6
-#define TYPE_POINTER 7
-
-/*
- * there are 3 accessible memory zones -
- * globals
- * array of 32bit ints/floats, mixed, LE,
- * entities
- * structure is up to the engine but the fields are a linear array
- * of mixed ints/floats, there are globals referring to the offsets
- * of these in the entity struct so there are ADDRESS and STOREP and
- * LOAD instructions that use globals containing field offsets.
- * strings
- * a static array in the progs.dat, with file parsing creating
- * additional constants, and some engine fields are mapped by
- * address as well to unique string offsets
- */
-
/*
- * Instructions
+ *windows makes these prefixed because they're C99
+ * TODO: utility versions that are type-safe and not
+ * just plain textual subsitution.
+ */
+#ifdef _MSC_VER
+# define snprintf(X, Y, Z, ...) _snprintf(X, Y, Z, __VA_ARGS__)
+ /* strtof doesn't exist -> strtod does though :) */
+# define strtof(X, Y) (float)(strtod(X, Y))
+#endif
+
+/*
+ * Very roboust way at determining endianess at compile time: this handles
+ * almost every possible situation. Otherwise a runtime check has to be
+ * performed.
+ */
+#define GMQCC_BYTE_ORDER_LITTLE 1234
+#define GMQCC_BYTE_ORDER_BIG 4321
+
+#if defined (__GNUC__) || defined (__GNU_LIBRARY__)
+# if defined (__FreeBSD__) || defined (__OpenBSD__)
+# include <sys/endian.h>
+# elif defined (BSD) && (BSD >= 199103) || defined (__DJGPP__) || defined (__CYGWIN32__)
+# include <machine/endiane.h>
+# elif defined (__APPLE__)
+# if defined (__BIG_ENDIAN__) && !defined(BIG_ENDIAN)
+# define BIG_ENDIAN
+# elif defined (__LITTLE_ENDIAN__) && !defined (LITTLE_ENDIAN)
+# define LITTLE_ENDIAN
+# endif
+# elif !defined (__MINGW32__)
+# include <endian.h>
+# if !defined (__BEOS__)
+# include <byteswap.h>
+# endif
+# endif
+#endif
+#if !defined(PLATFORM_BYTE_ORDER)
+# if defined (LITTLE_ENDIAN) || defined (BIG_ENDIAN)
+# if defined (LITTLE_ENDIAN) && !defined(BIG_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif !defined (LITTLE_ENDIAN) && defined (BIG_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# elif defined (BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif defined (BYTE_ORDER) && (BYTE_ORDER == BIG_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# endif
+# elif defined (_LITTLE_ENDIAN) || defined (_BIG_ENDIAN)
+# if defined (_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif !defined (_LITTLE_ENDIAN) && defined (_BIG_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# elif defined (_BYTE_ORDER) && (_BYTE_ORDER == _LITTLE_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif defined (_BYTE_ORDER) && (_BYTE_ORDER == _BIG_ENDIAN)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# endif
+# elif defined (__LITTLE_ENDIAN__) || defined (__BIG_ENDIAN__)
+# if defined (__LITTLE_ENDIAN__) && !defined (__BIG_ENDIAN__)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif !defined (__LITTLE_ENDIAN__) && defined (__BIG_ENDIAN__)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# elif defined (__BYTE_ORDER__) && (__BYTE_ORDER__ == __LITTLE_ENDIAN__)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif defined (__BYTE_ORDER__) && (__BYTE_ORDER__ == __BIG_ENDIAN__)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# endif
+# endif
+#endif
+#if !defined (PLATFORM_BYTE_ORDER)
+# if defined (__alpha__) || defined (__alpha) || defined (i386) || \
+ defined (__i386__) || defined (_M_I86) || defined (_M_IX86) || \
+ defined (__OS2__) || defined (sun386) || defined (__TURBOC__) || \
+ defined (vax) || defined (vms) || defined (VMS) || \
+ defined (__VMS) || defined (__x86_64__) || defined (_M_IA64) || \
+ defined (_M_X64) || defined (__i386) || defined (__x86_64)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_LITTLE
+# elif defined (AMIGA) || defined (applec) || defined (__AS400__) || \
+ defined (_CRAY) || defined (__hppa) || defined (__hp9000) || \
+ defined (ibm370) || defined (mc68000) || defined (m68k) || \
+ defined (__MRC__) || defined (__MVS__) || defined (__MWERKS__) || \
+ defined (sparc) || defined (__sparc) || defined (SYMANTEC_C) || \
+ defined (__TANDEM) || defined (THINK_C) || defined (__VMCMS__) || \
+ defined (__PPC__) || defined (__PPC) || defined (PPC)
+# define PLATFORM_BYTE_ORDER GMQCC_BYTE_ORDER_BIG
+# else
+# define PLATFORM_BYTE_ORDER -1
+# endif
+#endif
+
+
+
+/*===================================================================*/
+/*=========================== util.c ================================*/
+/*===================================================================*/
+void *util_memory_a (size_t, unsigned int, const char *);
+void util_memory_d (void *, unsigned int, const char *);
+void *util_memory_r (void *, size_t, unsigned int, const char *);
+void util_meminfo ();
+
+bool util_filexists (const char *);
+bool util_strupper (const char *);
+bool util_strdigit (const char *);
+char *util_strdup (const char *);
+void util_debug (const char *, const char *, ...);
+void util_endianswap (void *, size_t, unsigned int);
+
+size_t util_strtocmd (const char *, char *, size_t);
+size_t util_strtononcmd (const char *, char *, size_t);
+
+uint16_t util_crc16(uint16_t crc, const char *data, size_t len);
+
+void util_seed(uint32_t);
+uint32_t util_rand();
+
+#ifdef NOTRACK
+# define mem_a(x) malloc (x)
+# define mem_d(x) free ((void*)x)
+# define mem_r(x, n) realloc((void*)x, n)
+#else
+# define mem_a(x) util_memory_a((x), __LINE__, __FILE__)
+# define mem_d(x) util_memory_d((void*)(x), __LINE__, __FILE__)
+# define mem_r(x, n) util_memory_r((void*)(x), (n), __LINE__, __FILE__)
+#endif
+
+/*
+ * A flexible vector implementation: all vector pointers contain some
+ * data about themselfs exactly - sizeof(vector_t) behind the pointer
+ * this data is represented in the structure below. Doing this allows
+ * us to use the array [] to access individual elements from the vector
+ * opposed to using set/get methods.
+ */
+typedef struct {
+ size_t allocated;
+ size_t used;
+
+ /* can be extended now! whoot */
+} vector_t;
+
+/* hidden interface */
+void _util_vec_grow(void **a, size_t i, size_t s);
+#define GMQCC_VEC_WILLGROW(X,Y) ( \
+ ((!(X) || vec_meta(X)->used + Y >= vec_meta(X)->allocated)) ? \
+ (void)_util_vec_grow(((void**)&(X)), (Y), sizeof(*(X))) : \
+ (void)0 \
+)
+
+/* exposed interface */
+#define vec_meta(A) (((vector_t*)(A)) - 1)
+#define vec_free(A) ((A) ? (mem_d((void*)vec_meta(A)), (A) = NULL) : 0)
+#define vec_push(A,V) (GMQCC_VEC_WILLGROW((A),1), (A)[vec_meta(A)->used++] = (V))
+#define vec_size(A) ((A) ? vec_meta(A)->used : 0)
+#define vec_add(A,N) (GMQCC_VEC_WILLGROW((A),(N)), vec_meta(A)->used += (N), &(A)[vec_meta(A)->used-(N)])
+#define vec_last(A) ((A)[vec_meta(A)->used - 1])
+#define vec_pop(A) (vec_meta(A)->used -= 1)
+#define vec_shrinkto(A,N) (vec_meta(A)->used = (N))
+#define vec_shrinkby(A,N) (vec_meta(A)->used -= (N))
+#define vec_append(A,N,S) memcpy(vec_add((A), (N)), (S), (N) * sizeof(*(S)))
+#define vec_upload(X,Y,S) memcpy(vec_add((X), (S) * sizeof(*(Y))), (Y), (S) * sizeof(*(Y)))
+#define vec_remove(A,I,N) memmove((A)+(I),(A)+((I)+(N)),sizeof(*(A))*(vec_meta(A)->used-(I)-(N))),vec_meta(A)->used-=(N)
+
+typedef struct hash_table_t {
+ size_t size;
+ struct hash_node_t **table;
+} hash_table_t, *ht;
+
+/*
+ * hashtable implementation:
+ *
+ * Note:
+ * This was designed for pointers: you manage the life of the object yourself
+ * if you do use this for non-pointers please be warned that the object may not
+ * be valid if the duration of it exceeds (i.e on stack). So you need to allocate
+ * yourself, or put those in global scope to ensure duration is for the whole
+ * runtime.
+ *
+ * util_htnew(size) -- to make a new hashtable
+ * util_htset(table, key, value, sizeof(value)) -- to set something in the table
+ * util_htget(table, key) -- to get something from the table
+ * util_htdel(table) -- to delete the table
+ *
+ * example of use:
+ *
+ * ht foo = util_htnew(1024);
+ * int data = 100;
+ * char *test = "hello world\n";
+ * util_htset(foo, "foo", (void*)&data);
+ * util_gtset(foo, "bar", (void*)test);
+ *
+ * printf("foo: %d, bar %s",
+ * *((int *)util_htget(foo, "foo")),
+ * ((char*)util_htget(foo, "bar"))
+ * );
+ *
+ * util_htdel(foo);
+ */
+hash_table_t *util_htnew (size_t size);
+void util_htset (hash_table_t *ht, const char *key, void *value);
+void util_htdel (hash_table_t *ht);
+size_t util_hthash(hash_table_t *ht, const char *key);
+void util_htseth(hash_table_t *ht, const char *key, size_t hash, void *value);
+
+void *util_htget (hash_table_t *ht, const char *key);
+void *util_htgeth(hash_table_t *ht, const char *key, size_t hash);
+/*===================================================================*/
+/*============================ file.c ===============================*/
+/*===================================================================*/
+GMQCC_INLINE void file_close (FILE *);
+GMQCC_INLINE int file_error (FILE *);
+GMQCC_INLINE int file_getc (FILE *);
+GMQCC_INLINE int file_printf (FILE *, const char *, ...);
+GMQCC_INLINE int file_puts (FILE *, const char *);
+GMQCC_INLINE int file_seek (FILE *, long int, int);
+
+GMQCC_INLINE size_t file_read (void *, size_t, size_t, FILE *);
+GMQCC_INLINE size_t file_write (const void *, size_t, size_t, FILE *);
+
+GMQCC_INLINE FILE *file_open (const char *, const char *);
+/*NOINLINE*/ int file_getline(char **, size_t *, FILE *);
+
+
+/*===================================================================*/
+/*=========================== code.c ================================*/
+/*===================================================================*/
+
+/* TODO: cleanup */
+/* Note: if you change the order, fix type_sizeof in ir.c */
+enum {
+ TYPE_VOID ,
+ TYPE_STRING ,
+ TYPE_FLOAT ,
+ TYPE_VECTOR ,
+ TYPE_ENTITY ,
+ TYPE_FIELD ,
+ TYPE_FUNCTION ,
+ TYPE_POINTER ,
+ TYPE_INTEGER ,
+ TYPE_VARIANT ,
+ TYPE_STRUCT ,
+ TYPE_UNION ,
+ TYPE_ARRAY ,
+
+ TYPE_COUNT
+};
+
+/* const/var qualifiers */
+#define CV_NONE 0
+#define CV_CONST 1
+#define CV_VAR -1
+#define CV_WRONG 0x8000 /* magic number to help parsing */
+
+extern const char *type_name [TYPE_COUNT];
+extern uint16_t type_store_instr [TYPE_COUNT];
+extern uint16_t field_store_instr[TYPE_COUNT];
+
+/*
+ * could use type_store_instr + INSTR_STOREP_F - INSTR_STORE_F
+ * but this breaks when TYPE_INTEGER is added, since with the enhanced
+ * instruction set, the old ones are left untouched, thus the _I instructions
+ * are at a seperate place.
+ */
+extern uint16_t type_storep_instr[TYPE_COUNT];
+extern uint16_t type_eq_instr [TYPE_COUNT];
+extern uint16_t type_ne_instr [TYPE_COUNT];
+extern uint16_t type_not_instr [TYPE_COUNT];
+
+typedef struct {
+ uint32_t offset; /* Offset in file of where data begins */
+ uint32_t length; /* Length of section (how many of) */
+} prog_section;
+
+typedef struct {
+ uint32_t version; /* Program version (6) */
+ uint16_t crc16;
+ uint16_t skip;
+
+ prog_section statements; /* prog_section_statement */
+ prog_section defs; /* prog_section_def */
+ prog_section fields; /* prog_section_field */
+ prog_section functions; /* prog_section_function */
+ prog_section strings;
+ prog_section globals;
+ uint32_t entfield; /* Number of entity fields */
+} prog_header;
+
+/*
+ * Each paramater incerements by 3 since vector types hold
+ * 3 components (x,y,z).
+ */
+#define OFS_NULL 0
+#define OFS_RETURN 1
+#define OFS_PARM0 (OFS_RETURN+3)
+#define OFS_PARM1 (OFS_PARM0 +3)
+#define OFS_PARM2 (OFS_PARM1 +3)
+#define OFS_PARM3 (OFS_PARM2 +3)
+#define OFS_PARM4 (OFS_PARM3 +3)
+#define OFS_PARM5 (OFS_PARM4 +3)
+#define OFS_PARM6 (OFS_PARM5 +3)
+#define OFS_PARM7 (OFS_PARM6 +3)
+
+typedef struct {
+ uint16_t opcode;
+
+ /* operand 1 */
+ union {
+ int16_t s1; /* signed */
+ uint16_t u1; /* unsigned */
+ } o1;
+ /* operand 2 */
+ union {
+ int16_t s1; /* signed */
+ uint16_t u1; /* unsigned */
+ } o2;
+ /* operand 3 */
+ union {
+ int16_t s1; /* signed */
+ uint16_t u1; /* unsigned */
+ } o3;
+
+ /*
+ * This is the same as the structure in darkplaces
+ * {
+ * unsigned short op;
+ * short a,b,c;
+ * }
+ * But this one is more sane to work with, and the
+ * type sizes are guranteed.
+ */
+} prog_section_statement;
+
+typedef struct {
+ /*
+ * The types:
+ * 0 = ev_void
+ * 1 = ev_string
+ * 2 = ev_float
+ * 3 = ev_vector
+ * 4 = ev_entity
+ * 5 = ev_field
+ * 6 = ev_function
+ * 7 = ev_pointer -- engine only
+ * 8 = ev_bad -- engine only
+ */
+ uint16_t type;
+ uint16_t offset;
+ uint32_t name;
+} prog_section_both;
+
+typedef prog_section_both prog_section_def;
+typedef prog_section_both prog_section_field;
+
+/* this is ORed to the type */
+#define DEF_SAVEGLOBAL (1<<15)
+#define DEF_TYPEMASK ((1<<15)-1)
+
+typedef struct {
+ int32_t entry; /* in statement table for instructions */
+ uint32_t firstlocal; /* First local in local table */
+ uint32_t locals; /* Total ints of params + locals */
+ uint32_t profile; /* Always zero (engine uses this) */
+ uint32_t name; /* name of function in string table */
+ uint32_t file; /* file of the source file */
+ int32_t nargs; /* number of arguments */
+ uint8_t argsize[8]; /* size of arguments (keep 8 always?) */
+} prog_section_function;
+
+/*
+ * Instructions
* These are the external instructions supported by the interperter
- * this is what things compile to (from the C code). This is not internal
- * instructions for support like int, and such (which are translated)
- */
-#define INSTR_DONE 0
-// math
-#define INSTR_MUL_F 1 /* multiplication float */
-#define INSTR_MUL_V 2 /* multiplication vector */
-#define INSTR_MUL_FV 3 /* multiplication float->vector */
-#define INSTR_MUL_VF 4 /* multiplication vector->float */
-#define INSTR_DIV_F 5
-#define INSTR_ADD_F 6
-#define INSTR_ADD_V 7
-#define INSTR_SUB_F 8
-#define INSTR_SUB_V 9
-// compare
-#define INSTR_EQ_F 10
-#define INSTR_EQ_V 11
-#define INSTR_EQ_S 12
-#define INSTR_EQ_E 13
-#define INSTR_EQ_FNC 14
-#define INSTR_NE_F 15
-#define INSTR_NE_V 16
-#define INSTR_NE_S 17
-#define INSTR_NE_E 18
-#define INSTR_NE_FNC 19
-// multi compare
-#define INSTR_LE 20
-#define INSTR_GE 21
-#define INSTR_LT 22
-#define INSTR_GT 23
-// load and store
-#define INSTR_LOAD_F 24
-#define INSTR_LOAD_V 25
-#define INSTR_LOAD_S 26
-#define INSTR_LOAD_ENT 27
-#define INSTR_LOAD_FLD 28
-#define INSTR_LOAD_FNC 29
-#define INSTR_STORE_F 31
-#define INSTR_STORE_V 32
-#define INSTR_STORE_S 33
-#define INSTR_STORE_ENT 34
-#define INSTR_STORE_FLD 35
-#define INSTR_STORE_FNC 36
-// others
-#define INSTR_ADDRESS 30
-#define INSTR_RETURN 37
-#define INSTR_NOT_F 38
-#define INSTR_NOT_V 39
-#define INSTR_NOT_S 40
-#define INSTR_NOT_ENT 41
-#define INSTR_NOT_FNC 42
-#define INSTR_IF 43
-#define INSTR_IFNOT 44
-#define INSTR_CALL0 45
-#define INSTR_CALL1 46
-#define INSTR_CALL2 47
-#define INSTR_CALL3 48
-#define INSTR_CALL4 49
-#define INSTR_CALL5 50
-#define INSTR_CALL6 51
-#define INSTR_CALL7 52
-#define INSTR_CALL8 53
-#define INSTR_STATE 54
-#define INSTR_GOTO 55
-#define INSTR_AND 56
-#define INSTR_OR 57
-#define INSTR_BITAND 59
-#define INSTR_BITOR 60
-
-#define mem_a(x) malloc(x)
-#define mem_d(x) free (x)
-
-/*
- * This is the smallest lexer I've ever wrote: and I must say, it's quite
- * more nicer than those large bulky complex parsers that most people write
- * which has some sort of a complex state.
- */
-struct lex_file {
- /*
- * This is a simple state for lexing, no need to be complex for qc
- * code. It's trivial stuff.
- */
- FILE *file;
- char peek[5]; /* extend for depthier peeks */
- int last;
- int current;
- int length;
- int size;
- char lastok[8192]; /* No token shall ever be bigger than this! */
+ * this is what things compile to (from the C code).
+ */
+enum {
+ INSTR_DONE,
+ INSTR_MUL_F,
+ INSTR_MUL_V,
+ INSTR_MUL_FV, /* NOTE: the float operands must NOT be at the same locations: A != C */
+ INSTR_MUL_VF, /* and here: B != C */
+ INSTR_DIV_F,
+ INSTR_ADD_F,
+ INSTR_ADD_V,
+ INSTR_SUB_F,
+ INSTR_SUB_V,
+ INSTR_EQ_F,
+ INSTR_EQ_V,
+ INSTR_EQ_S,
+ INSTR_EQ_E,
+ INSTR_EQ_FNC,
+ INSTR_NE_F,
+ INSTR_NE_V,
+ INSTR_NE_S,
+ INSTR_NE_E,
+ INSTR_NE_FNC,
+ INSTR_LE,
+ INSTR_GE,
+ INSTR_LT,
+ INSTR_GT,
+ INSTR_LOAD_F,
+ INSTR_LOAD_V,
+ INSTR_LOAD_S,
+ INSTR_LOAD_ENT,
+ INSTR_LOAD_FLD,
+ INSTR_LOAD_FNC,
+ INSTR_ADDRESS,
+ INSTR_STORE_F,
+ INSTR_STORE_V,
+ INSTR_STORE_S,
+ INSTR_STORE_ENT,
+ INSTR_STORE_FLD,
+ INSTR_STORE_FNC,
+ INSTR_STOREP_F,
+ INSTR_STOREP_V,
+ INSTR_STOREP_S,
+ INSTR_STOREP_ENT,
+ INSTR_STOREP_FLD,
+ INSTR_STOREP_FNC,
+ INSTR_RETURN,
+ INSTR_NOT_F,
+ INSTR_NOT_V,
+ INSTR_NOT_S,
+ INSTR_NOT_ENT,
+ INSTR_NOT_FNC,
+ INSTR_IF,
+ INSTR_IFNOT,
+ INSTR_CALL0,
+ INSTR_CALL1,
+ INSTR_CALL2,
+ INSTR_CALL3,
+ INSTR_CALL4,
+ INSTR_CALL5,
+ INSTR_CALL6,
+ INSTR_CALL7,
+ INSTR_CALL8,
+ INSTR_STATE,
+ INSTR_GOTO,
+ INSTR_AND,
+ INSTR_OR,
+ INSTR_BITAND,
+ INSTR_BITOR,
+
+ /*
+ * Virtual instructions used by the assembler
+ * keep at the end but before virtual instructions
+ * for the IR below.
+ */
+ AINSTR_END,
+
+ /*
+ * Virtual instructions used by the IR
+ * Keep at the end!
+ */
+ VINSTR_PHI,
+ VINSTR_JUMP,
+ VINSTR_COND,
+ /* A never returning CALL.
+ * Creating this causes IR blocks to be marked as 'final'.
+ * No-Return-Call
+ */
+ VINSTR_NRCALL
};
+/* TODO: cleanup this mess */
+extern prog_section_statement *code_statements;
+extern int *code_linenums;
+extern prog_section_def *code_defs;
+extern prog_section_field *code_fields;
+extern prog_section_function *code_functions;
+extern int *code_globals;
+extern char *code_chars;
+extern uint16_t code_crc;
+
+/* uhh? */
+typedef float qcfloat;
+typedef int32_t qcint;
+
+/*
+ * code_write -- writes out the compiled file
+ * code_init -- prepares the code file
+ */
+bool code_write (const char *filename, const char *lno);
+void code_init ();
+uint32_t code_genstring (const char *string);
+qcint code_alloc_field (size_t qcsize);
+
+/* this function is used to keep statements and linenumbers together */
+void code_push_statement(prog_section_statement *stmt, int linenum);
+void code_pop_statement();
+
/*
- * It's important that this table never exceed 32 keywords, the ascii
- * table starts at 33 (which we need)
- */
-#define TOKEN_DO 0
-#define TOKEN_ELSE 1
-#define TOKEN_IF 2
-#define TOKEN_WHILE 3
-#define TOKEN_BREAK 4
-#define TOKEN_CONTINUE 5
-#define TOKEN_RETURN 6
-#define TOKEN_GOTO 7
-#define TOKEN_FOR 8 // extension
-#define TOKEN_INT 9 // extension
-#define TOKEN_BOOL 10 // extension
-#define TOKEN_VOID 11
-#define TOKEN_STRING 12
-#define TOKEN_FLOAT 13
-#define TOKEN_VECTOR 14
-#define TOKEN_ENTITY 15
-
-/*
- * Lexer state constants, these are numbers for where exactly in
- * the lexing the lexer is at. Or where it decided to stop if a lexer
- * error occurs.
- */
-#define LEX_COMMENT 128 /* higher than ascii */
-#define LEX_CHRLIT 129
-#define LEX_STRLIT 130
-#define LEX_IDENT 131
-#define LEX_DO 132
-#define LEX_ELSE 133
-#define LEX_IF 134
-#define LEX_WHILE 135
-#define LEX_INCLUDE 136
-#define LEX_DEFINE 137
-
-int lex_token(struct lex_file *);
-void lex_reset(struct lex_file *);
-int lex_debug(struct lex_file *);
-int lex_close(struct lex_file *);
-struct lex_file *lex_open (const char *);
-
-/* errors */
-#define ERROR_LEX (SHRT_MAX+0)
-#define ERROR_PARSE (SHRT_MAX+1)
-#define ERROR_INTERNAL (SHRT_MAX+2)
-#define ERROR_COMPILER (SHRT_MAX+3)
-int error(int, const char *, ...);
-
-/* parse.c */
-int parse(struct lex_file *);
+ * A shallow copy of a lex_file to remember where which ast node
+ * came from.
+ */
+typedef struct {
+ const char *file;
+ size_t line;
+} lex_ctx;
+
+/*===================================================================*/
+/*============================ con.c ================================*/
+/*===================================================================*/
+enum {
+ CON_BLACK = 30,
+ CON_RED,
+ CON_GREEN,
+ CON_BROWN,
+ CON_BLUE,
+ CON_MAGENTA,
+ CON_CYAN ,
+ CON_WHITE
+};
+
+/* message level */
+enum {
+ LVL_MSG,
+ LVL_WARNING,
+ LVL_ERROR
+};
+
+FILE *con_default_out();
+FILE *con_default_err();
+
+void con_vprintmsg (int level, const char *name, size_t line, const char *msgtype, const char *msg, va_list ap);
+void con_printmsg (int level, const char *name, size_t line, const char *msgtype, const char *msg, ...);
+void con_cvprintmsg(void *ctx, int lvl, const char *msgtype, const char *msg, va_list ap);
+void con_cprintmsg (void *ctx, int lvl, const char *msgtype, const char *msg, ...);
+
+void con_close ();
+void con_init ();
+void con_reset ();
+void con_color (int);
+int con_change(const char *, const char *);
+int con_verr (const char *, va_list);
+int con_vout (const char *, va_list);
+int con_err (const char *, ...);
+int con_out (const char *, ...);
+
+/* error/warning interface */
+extern size_t compile_errors;
+extern size_t compile_Werrors;
+extern size_t compile_warnings;
+
+void /********/ compile_error (lex_ctx ctx, /*LVL_ERROR*/ const char *msg, ...);
+void /********/ vcompile_error (lex_ctx ctx, /*LVL_ERROR*/ const char *msg, va_list ap);
+bool GMQCC_WARN compile_warning (lex_ctx ctx, int warntype, const char *fmt, ...);
+bool GMQCC_WARN vcompile_warning(lex_ctx ctx, int warntype, const char *fmt, va_list ap);
+void compile_show_werrors();
+
+/*===================================================================*/
+/*========================= assembler.c =============================*/
+/*===================================================================*/
+/* TODO: remove this ... */
+static const struct {
+ const char *m; /* menomic */
+ const size_t o; /* operands */
+ const size_t l; /* menomic len */
+} asm_instr[] = {
+ { "DONE" , 1, 4 },
+ { "MUL_F" , 3, 5 },
+ { "MUL_V" , 3, 5 },
+ { "MUL_FV" , 3, 6 },
+ { "MUL_VF" , 3, 6 },
+ { "DIV" , 0, 3 },
+ { "ADD_F" , 3, 5 },
+ { "ADD_V" , 3, 5 },
+ { "SUB_F" , 3, 5 },
+ { "SUB_V" , 3, 5 },
+ { "EQ_F" , 0, 4 },
+ { "EQ_V" , 0, 4 },
+ { "EQ_S" , 0, 4 },
+ { "EQ_E" , 0, 4 },
+ { "EQ_FNC" , 0, 6 },
+ { "NE_F" , 0, 4 },
+ { "NE_V" , 0, 4 },
+ { "NE_S" , 0, 4 },
+ { "NE_E" , 0, 4 },
+ { "NE_FNC" , 0, 6 },
+ { "LE" , 0, 2 },
+ { "GE" , 0, 2 },
+ { "LT" , 0, 2 },
+ { "GT" , 0, 2 },
+ { "FIELD_F" , 0, 7 },
+ { "FIELD_V" , 0, 7 },
+ { "FIELD_S" , 0, 7 },
+ { "FIELD_ENT" , 0, 9 },
+ { "FIELD_FLD" , 0, 9 },
+ { "FIELD_FNC" , 0, 9 },
+ { "ADDRESS" , 0, 7 },
+ { "STORE_F" , 0, 7 },
+ { "STORE_V" , 0, 7 },
+ { "STORE_S" , 0, 7 },
+ { "STORE_ENT" , 0, 9 },
+ { "STORE_FLD" , 0, 9 },
+ { "STORE_FNC" , 0, 9 },
+ { "STOREP_F" , 0, 8 },
+ { "STOREP_V" , 0, 8 },
+ { "STOREP_S" , 0, 8 },
+ { "STOREP_ENT", 0, 10},
+ { "STOREP_FLD", 0, 10},
+ { "STOREP_FNC", 0, 10},
+ { "RETURN" , 0, 6 },
+ { "NOT_F" , 0, 5 },
+ { "NOT_V" , 0, 5 },
+ { "NOT_S" , 0, 5 },
+ { "NOT_ENT" , 0, 7 },
+ { "NOT_FNC" , 0, 7 },
+ { "IF" , 0, 2 },
+ { "IFNOT" , 0, 5 },
+ { "CALL0" , 1, 5 },
+ { "CALL1" , 2, 5 },
+ { "CALL2" , 3, 5 },
+ { "CALL3" , 4, 5 },
+ { "CALL4" , 5, 5 },
+ { "CALL5" , 6, 5 },
+ { "CALL6" , 7, 5 },
+ { "CALL7" , 8, 5 },
+ { "CALL8" , 9, 5 },
+ { "STATE" , 0, 5 },
+ { "GOTO" , 0, 4 },
+ { "AND" , 0, 3 },
+ { "OR" , 0, 2 },
+ { "BITAND" , 0, 6 },
+ { "BITOR" , 0, 5 },
+
+ { "END" , 0, 3 } /* virtual assembler instruction */
+};
+/*===================================================================*/
+/*============================= ir.c ================================*/
+/*===================================================================*/
+
+enum store_types {
+ store_global,
+ store_local, /* local, assignable for now, should get promoted later */
+ store_param, /* parameters, they are locals with a fixed position */
+ store_value, /* unassignable */
+ store_return /* unassignable, at OFS_RETURN */
+};
+
+typedef struct {
+ qcfloat x, y, z;
+} vector;
+
+vector vec3_add (vector, vector);
+vector vec3_sub (vector, vector);
+qcfloat vec3_mulvv(vector, vector);
+vector vec3_mulvf(vector, float);
+
+/*===================================================================*/
+/*============================= exec.c ==============================*/
+/*===================================================================*/
+
+/* TODO: cleanup */
+/*
+ * Darkplaces has (or will have) a 64 bit prog loader
+ * where the 32 bit qc program is autoconverted on load.
+ * Since we may want to support that as well, let's redefine
+ * float and int here.
+ */
+typedef union {
+ qcint _int;
+ qcint string;
+ qcint function;
+ qcint edict;
+ qcfloat _float;
+ qcfloat vector[3];
+ qcint ivector[3];
+} qcany;
+
+typedef char qcfloat_size_is_correct [sizeof(qcfloat) == 4 ?1:-1];
+typedef char qcint_size_is_correct [sizeof(qcint) == 4 ?1:-1];
+
+enum {
+ VMERR_OK,
+ VMERR_TEMPSTRING_ALLOC,
+
+ VMERR_END
+};
+
+#define VM_JUMPS_DEFAULT 1000000
+
+/* execute-flags */
+#define VMXF_DEFAULT 0x0000 /* default flags - nothing */
+#define VMXF_TRACE 0x0001 /* trace: print statements before executing */
+#define VMXF_PROFILE 0x0002 /* profile: increment the profile counters */
+
+struct qc_program_s;
+
+typedef int (*prog_builtin)(struct qc_program_s *prog);
+
+typedef struct {
+ qcint stmt;
+ size_t localsp;
+ prog_section_function *function;
+} qc_exec_stack;
+
+typedef struct qc_program_s {
+ char *filename;
+
+ prog_section_statement *code;
+ prog_section_def *defs;
+ prog_section_def *fields;
+ prog_section_function *functions;
+ char *strings;
+ qcint *globals;
+ qcint *entitydata;
+ bool *entitypool;
+
+ const char* *function_stack;
+
+ uint16_t crc16;
+
+ size_t tempstring_start;
+ size_t tempstring_at;
+
+ qcint vmerror;
+
+ size_t *profile;
+
+ prog_builtin *builtins;
+ size_t builtins_count;
+
+ /* size_t ip; */
+ qcint entities;
+ size_t entityfields;
+ bool allowworldwrites;
+
+ qcint *localstack;
+ qc_exec_stack *stack;
+ size_t statement;
+
+ size_t xflags;
+
+ int argc; /* current arg count for debugging */
+} qc_program;
+
+qc_program* prog_load(const char *filename);
+void prog_delete(qc_program *prog);
+
+bool prog_exec(qc_program *prog, prog_section_function *func, size_t flags, long maxjumps);
+
+char* prog_getstring (qc_program *prog, qcint str);
+prog_section_def* prog_entfield (qc_program *prog, qcint off);
+prog_section_def* prog_getdef (qc_program *prog, qcint off);
+qcany* prog_getedict (qc_program *prog, qcint e);
+qcint prog_tempstring(qc_program *prog, const char *_str);
+
+
+/*===================================================================*/
+/*===================== parser.c commandline ========================*/
+/*===================================================================*/
+
+bool parser_init ();
+bool parser_compile_file (const char *);
+bool parser_compile_string(const char *, const char *, size_t);
+bool parser_finish (const char *);
+void parser_cleanup ();
+
+/*===================================================================*/
+/*====================== ftepp.c commandline ========================*/
+/*===================================================================*/
+bool ftepp_init ();
+bool ftepp_preprocess_file (const char *filename);
+bool ftepp_preprocess_string(const char *name, const char *str);
+void ftepp_finish ();
+const char *ftepp_get ();
+void ftepp_flush ();
+void ftepp_add_define (const char *source, const char *name);
+void ftepp_add_macro (const char *name, const char *value);
+
+/*===================================================================*/
+/*======================= main.c commandline ========================*/
+/*===================================================================*/
+
+#if 1
+/* Helpers to allow for a whole lot of flags. Otherwise we'd limit
+ * to 32 or 64 -f options...
+ */
+typedef struct {
+ size_t idx; /* index into an array of 32 bit words */
+ uint8_t bit; /* bit index for the 8 bit group idx points to */
+} longbit;
+#define LONGBIT(bit) { ((bit)/32), ((bit)%32) }
+#define LONGBIT_SET(B, I) ((B).idx = (I)/32, (B).bit = ((I)%32))
+#else
+typedef uint32_t longbit;
+#define LONGBIT(bit) (bit)
+#define LONGBIT_SET(B, I) ((B) = (I))
+#endif
+
+/*===================================================================*/
+/*=========================== utf8lib.c =============================*/
+/*===================================================================*/
+typedef uint32_t uchar_t;
+
+bool u8_analyze (const char *_s, size_t *_start, size_t *_len, uchar_t *_ch, size_t _maxlen);
+size_t u8_strlen (const char*);
+size_t u8_strnlen (const char*, size_t);
+uchar_t u8_getchar (const char*, const char**);
+uchar_t u8_getnchar(const char*, const char**, size_t);
+int u8_fromchar(uchar_t w, char *to, size_t maxlen);
+
+/*===================================================================*/
+/*============================= opts.c ==============================*/
+/*===================================================================*/
+typedef struct {
+ const char *name;
+ longbit bit;
+} opts_flag_def;
+
+bool opts_setflag (const char *, bool);
+bool opts_setwarn (const char *, bool);
+bool opts_setwerror(const char *, bool);
+bool opts_setoptim (const char *, bool);
+
+void opts_init (const char *, int, size_t);
+void opts_set (uint32_t *, size_t, bool);
+void opts_setoptimlevel(unsigned int);
+void opts_ini_init (const char *);
+
+enum {
+# define GMQCC_TYPE_FLAGS
+# define GMQCC_DEFINE_FLAG(X) X,
+# include "opts.def"
+ COUNT_FLAGS
+};
+static const opts_flag_def opts_flag_list[] = {
+# define GMQCC_TYPE_FLAGS
+# define GMQCC_DEFINE_FLAG(X) { #X, LONGBIT(X) },
+# include "opts.def"
+ { NULL, LONGBIT(0) }
+};
+
+enum {
+# define GMQCC_TYPE_WARNS
+# define GMQCC_DEFINE_FLAG(X) WARN_##X,
+# include "opts.def"
+ COUNT_WARNINGS
+};
+static const opts_flag_def opts_warn_list[] = {
+# define GMQCC_TYPE_WARNS
+# define GMQCC_DEFINE_FLAG(X) { #X, LONGBIT(WARN_##X) },
+# include "opts.def"
+ { NULL, LONGBIT(0) }
+};
+
+enum {
+# define GMQCC_TYPE_OPTIMIZATIONS
+# define GMQCC_DEFINE_FLAG(NAME, MIN_O) OPTIM_##NAME,
+# include "opts.def"
+ COUNT_OPTIMIZATIONS
+};
+static const opts_flag_def opts_opt_list[] = {
+# define GMQCC_TYPE_OPTIMIZATIONS
+# define GMQCC_DEFINE_FLAG(NAME, MIN_O) { #NAME, LONGBIT(OPTIM_##NAME) },
+# include "opts.def"
+ { NULL, LONGBIT(0) }
+};
+static const unsigned int opts_opt_oflag[] = {
+# define GMQCC_TYPE_OPTIMIZATIONS
+# define GMQCC_DEFINE_FLAG(NAME, MIN_O) MIN_O,
+# include "opts.def"
+ 0
+};
+extern unsigned int opts_optimizationcount[COUNT_OPTIMIZATIONS];
+
+/* other options: */
+typedef enum {
+ COMPILER_QCC, /* circa QuakeC */
+ COMPILER_FTEQCC, /* fteqcc QuakeC */
+ COMPILER_QCCX, /* qccx QuakeC */
+ COMPILER_GMQCC /* this QuakeC */
+} opts_std_t;
+
+/* TODO: cleanup this */
+typedef struct {
+ uint32_t O; /* -Ox */
+ const char *output; /* -o file */
+ bool quiet; /* -q --quiet */
+ bool g; /* -g */
+ opts_std_t standard; /* -std= */
+ bool debug; /* -debug */
+ bool memchk; /* -memchk */
+ bool dumpfin; /* -dumpfin */
+ bool dump; /* -dump */
+ bool forcecrc; /* --force-crc= */
+ uint16_t forced_crc; /* --force-crc= */
+ bool pp_only; /* -E */
+ size_t max_array_size; /* --max-array= */
+
+ uint32_t flags [1 + (COUNT_FLAGS / 32)];
+ uint32_t warn [1 + (COUNT_WARNINGS / 32)];
+ uint32_t werror [1 + (COUNT_WARNINGS / 32)];
+ uint32_t optimization[1 + (COUNT_OPTIMIZATIONS / 32)];
+} opts_cmd_t;
+
+extern opts_cmd_t opts;
+
+#define OPTS_FLAG(i) (!! (opts.flags [(i)/32] & (1<< ((i)%32))))
+#define OPTS_WARN(i) (!! (opts.warn [(i)/32] & (1<< ((i)%32))))
+#define OPTS_WERROR(i) (!! (opts.werror [(i)/32] & (1<< ((i)%32))))
+#define OPTS_OPTIMIZATION(i) (!! (opts.optimization[(i)/32] & (1<< ((i)%32))))
#endif
projects / xonotic / gmqcc.git / blobdiff