*/
#ifndef GMQCC_HDR
#define GMQCC_HDR
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
#include <stdio.h>
-
-/* 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
-
+#include <ctype.h>
/*
- * 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
+ * stdint.h and inttypes.h -less subset
+ * for systems that don't have it, which we must
+ * assume is all systems. (int8_t not required)
*/
-
-/*
- * 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
+#if CHAR_MIN == -128
+ typedef unsigned char uint8_t; /* same as below */
+#elif SCHAR_MIN == -128
+ typedef unsigned char uint8_t; /* same as above */
+#endif
+#if SHRT_MAX == 0x7FFF
+ typedef short int16_t;
+ typedef unsigned short uint16_t;
+#elif INT_MAX == 0x7FFF
+ typedef int int16_t;
+ typedef unsigned int uint16_t;
+#endif
+#if INT_MAX == 0x7FFFFFFF
+ typedef int int32_t;
+ typedef unsigned int uint32_t;
+#elif LONG_MAX == 0x7FFFFFFF
+ typedef long int32_t;
+ typedef unsigned long uint32_t;
+#endif
+#ifdef _LP64 /* long pointer == 64 */
+ typedef unsigned long uintptr_t;
+ typedef long intptr_t;
+#else
+ typedef unsigned int uintptr_t;
+ typedef int intptr_t;
+#endif
+/* Ensure type sizes are correct: */
+typedef char uint8_size_is_correct [sizeof(uint8_t) == 1?1:-1];
+typedef char uint16_size_if_correct [sizeof(uint16_t) == 2?1:-1];
+typedef char uint32_size_is_correct [sizeof(uint32_t) == 4?1:-1];
+typedef char int8_size_is_correct [sizeof(int8_t) == 1?1:-1];
+typedef char int16_size_if_correct [sizeof(int16_t) == 2?1:-1];
+typedef char int32_size_is_correct [sizeof(int32_t) == 4?1:-1];
+/* intptr_t / uintptr_t correct size check */
+typedef char uintptr_size_is_correct[sizeof(intptr_t) == sizeof(int*)?1:-1];
+typedef char uintptr_size_is_correct[sizeof(uintptr_t)== sizeof(int*)?1:-1];
-/*
- * 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.
- */
+//===================================================================
+//============================ lex.c ================================
+//===================================================================
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;
- long line; /* Line the lexer is on */
- char lastok[8192]; /* No token shall ever be bigger than this! */
+ FILE *file; /* file handler */
+ char *name; /* name of file */
+ char peek [5];
+ char lastok[8192];
+
+ int last; /* last token */
+ int current; /* current token */
+ int length; /* bytes left to parse */
+ int size; /* never changes (size of file) */
+ int line; /* what line are we on? */
};
/*
#define TOKEN_GOTO 7
#define TOKEN_FOR 8 // extension
#define TOKEN_TYPEDEF 9 // extension
-#define TOKEN_INT 10 // extension
-#define TOKEN_VOID 11
-#define TOKEN_STRING 12
-#define TOKEN_FLOAT 13
-#define TOKEN_VECTOR 14
-#define TOKEN_ENTITY 15
+
+// ensure the token types are out of the
+// bounds of anyothers that may conflict.
+#define TOKEN_FLOAT 110
+#define TOKEN_VECTOR 111
+#define TOKEN_STRING 112
+#define TOKEN_ENTITY 113
+#define TOKEN_VOID 114
/*
* 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.
+ * error occurs. These numbers must be > where the ascii-table ends
+ * and > the last type token which is TOKEN_VOID
*/
-#define LEX_COMMENT 128 /* higher than ascii */
-#define LEX_CHRLIT 129
-#define LEX_STRLIT 130
-#define LEX_IDENT 131
+#define LEX_COMMENT 1128
+#define LEX_CHRLIT 1129
+#define LEX_STRLIT 1130
+#define LEX_IDENT 1131
-int lex_token(struct lex_file *);
-void lex_reset(struct lex_file *);
-int lex_close(struct lex_file *);
-struct lex_file *lex_open (FILE *);
+int lex_token (struct lex_file *);
+void lex_reset (struct lex_file *);
+void lex_close (struct lex_file *);
+struct lex_file *lex_include(struct lex_file *, char *);
+struct lex_file *lex_open (FILE *);
-/* errors */
+//===================================================================
+//========================== error.c ================================
+//===================================================================
#define ERROR_LEX (SHRT_MAX+0)
#define ERROR_PARSE (SHRT_MAX+1)
#define ERROR_INTERNAL (SHRT_MAX+2)
#define ERROR_COMPILER (SHRT_MAX+3)
#define ERROR_PREPRO (SHRT_MAX+4)
-int error(int, const char *, ...);
+int error(struct lex_file *, int, const char *, ...);
-/* parse.c */
-int parse(struct lex_file *);
-struct parsenode {
- struct parsenode *next;
- int type; /* some token */
-};
+//===================================================================
+//========================== parse.c ================================
+//===================================================================
+int parse_gen(struct lex_file *);
-/* typedef.c */
+//===================================================================
+//========================== typedef.c ==============================
+//===================================================================
typedef struct typedef_node_t {
- char *name; /* name of actual type */
+ char *name;
} typedef_node;
void typedef_init();
+void typedef_clear();
typedef_node *typedef_find(const char *);
-int typedef_add (const char *, const char *);
+int typedef_add (struct lex_file *file, const char *, const char *);
+
+
+//===================================================================
+//=========================== util.c ================================
+//===================================================================
+void *util_memory_a(unsigned int, unsigned int, const char *);
+void util_memory_d(void *, unsigned int, const char *);
+char *util_strdup (const char *);
+char *util_strrq (char *);
+void util_debug (const char *, const char *, ...);
-/* alloc.c */
-void *memory_a(unsigned int, unsigned int, const char *);
-void memory_d(void *, unsigned int, const char *);
#ifdef NOTRACK
# define mem_a(x) malloc(x)
# define mem_d(x) free (x)
#else
-# define mem_a(x) memory_a((x), __LINE__, __FILE__)
-# define mem_d(x) memory_d((x), __LINE__, __FILE__)
+# define mem_a(x) util_memory_a((x), __LINE__, __FILE__)
+# define mem_d(x) util_memory_d((x), __LINE__, __FILE__)
#endif
+
+#define VECTOR_MAKE(T,N) \
+ T* N##_data = NULL; \
+ long N##_elements = 0; \
+ long N##_allocated = 0; \
+ int N##_add(T element) { \
+ if (N##_elements == N##_allocated) { \
+ if (N##_allocated == 0) { \
+ N##_allocated = 12; \
+ } else { \
+ N##_allocated *= 2; \
+ } \
+ void *temp = realloc(N##_data, (N##_allocated * sizeof(T))); \
+ if (!temp) { \
+ free(temp); \
+ return -1; \
+ } \
+ N##_data = (T*)temp; \
+ } \
+ N##_data[N##_elements] = element; \
+ return N##_elements++; \
+ }
+
+//===================================================================
+//=========================== code.c ================================
+//===================================================================
+#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
+
+/*
+ * 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 */
+ };
+ /* operand 2 */
+ union {
+ int16_t s2; /* signed */
+ uint16_t u2; /* unsigned */
+ };
+ /* operand 3 */
+ union {
+ int16_t s3; /* signed */
+ uint16_t u3; /* unsigned */
+ };
+
+ /*
+ * 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;
+
+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 */
+ uint32_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).
+ */
+enum {
+ INSTR_DONE,
+ INSTR_MUL_F,
+ INSTR_MUL_V,
+ INSTR_MUL_FV,
+ INSTR_MUL_VF,
+ 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
+};
+
+/*
+ * The symbols below are created by the following
+ * expanded macros:
+ *
+ * VECTOR_MAKE(prog_section_statement, code_statements);
+ * VECTOR_MAKE(prog_section_def, code_defs );
+ * VECTOR_MAKE(prog_section_field, code_fields );
+ * VECTOR_MAKE(prog_section_function, code_functions );
+ * VECTOR_MAKE(int, code_globals );
+ * VECTOR_MAKE(char, code_strings );
+ */
+int code_statements_add(prog_section_statement);
+int code_defs_add (prog_section_def);
+int code_fields_add (prog_section_field);
+int code_functions_add(prog_section_function);
+int code_globals_add (int);
+int code_strings_add (char);
+extern long code_statements_elements;
+extern long code_strings_elements;
+extern long code_globals_elements;
+extern long code_functions_elements;
+extern long code_fields_elements;
+extern long code_defs_elements;
+
+/*
+ * code_write -- writes out the compiled file
+ * code_init -- prepares the code file
+ */
+void code_write ();
+void code_init ();
+
+//===================================================================
+//========================= assembler.c =============================
+//===================================================================
+void asm_init (const char *, FILE **);
+void asm_close(FILE *);
+void asm_parse(FILE *);
#endif
projects / xonotic / gmqcc.git / blobdiff