X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=gmqcc.h;h=e5d1a5603bb5965cb7d31c9eedab700771063161;hb=f67b6ea240ed62fd40d7383968940b8f90f0c6c9;hp=50fd8568e9e3f19fe356138151bdcc534d4d7150;hpb=bd5ba9e0fe0e9bdaea3f869f55d8f40651a2d0fb;p=xonotic%2Fgmqcc.git diff --git a/gmqcc.h b/gmqcc.h index 50fd856..e5d1a56 100644 --- a/gmqcc.h +++ b/gmqcc.h @@ -22,123 +22,67 @@ */ #ifndef GMQCC_HDR #define GMQCC_HDR +#include +#include +#include #include - -/* 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 /* - * 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? */ }; /* @@ -175,44 +119,275 @@ struct lex_file { #define LEX_STRLIT 1130 #define LEX_IDENT 1131 -int lex_token(struct lex_file *); -void lex_reset(struct lex_file *); -void 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_tree(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