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gmqcc/gmqcc.h
Dale Weiler 7aee8ac2ef Working on the assembler
2012-04-27 16:31:38 -04:00

547 lines
19 KiB
C
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/*
* Copyright (C) 2012
* Dale Weiler
*
* 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
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef GMQCC_HDR
#define GMQCC_HDR
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#define GMQCC_VERSION_MAJOR 0
#define GMQCC_VERSION_MINOR 1
#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)
# define bool _Bool
# if __STDC_VERSION__ < 199901L && __GNUC__ < 3
typedef int _Bool
# endif
# endif /* !__cplusplus */
/*
* 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)
*/
#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 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 intptr_size_is_correct [sizeof(uintptr_t)== sizeof(int*)?1:-1];
//===================================================================
//============================ lex.c ================================
//===================================================================
struct lex_file {
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? */
};
/*
* It's important that this table never exceed 32 keywords, the ascii
* table starts at 33 (and we don't want conflicts)
*/
enum {
TOKEN_DO ,
TOKEN_ELSE ,
TOKEN_IF ,
TOKEN_WHILE ,
TOKEN_BREAK ,
TOKEN_CONTINUE ,
TOKEN_RETURN ,
TOKEN_GOTO ,
TOKEN_FOR , // extension
TOKEN_TYPEDEF , // extension
// ensure the token types are out of the
// bounds of anyothers that may conflict.
TOKEN_FLOAT = 110,
TOKEN_VECTOR ,
TOKEN_STRING ,
TOKEN_ENTITY ,
TOKEN_VOID
};
/*
* 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. These numbers must be > where the ascii-table ends
* and > the last type token which is TOKEN_VOID
*/
enum {
LEX_COMMENT = 1128,
LEX_CHRLIT ,
LEX_STRLIT ,
LEX_IDENT
};
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 *);
//===================================================================
//========================== 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(struct lex_file *, int, const char *, ...);
//===================================================================
//========================== parse.c ================================
//===================================================================
int parse_gen(struct lex_file *);
//===================================================================
//========================== typedef.c ==============================
//===================================================================
typedef struct typedef_node_t {
char *name;
} typedef_node;
void typedef_init();
void typedef_clear();
typedef_node *typedef_find(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 *);
void util_meminfo ();
char *util_strdup (const char *);
char *util_strrq (char *);
char *util_strrnl (char *);
char *util_strsws (char *);
void util_debug (const char *, const char *, ...);
int util_getline (char **, size_t *, FILE *);
void util_endianswap (void *, int, int);
uint32_t util_crc32(const char *, int, register const short);
#ifdef NOTRACK
# define mem_a(x) malloc(x)
# define mem_d(x) free (x)
#else
# define mem_a(x) util_memory_a((x), __LINE__, __FILE__)
# define mem_d(x) util_memory_d((x), __LINE__, __FILE__)
#endif
/* Builds vector type (usefull for inside structures) */
#define VECTOR_TYPE(T,N) \
T* N##_data = NULL; \
long N##_elements = 0; \
long N##_allocated = 0
/* Builds vector add */
#define VECTOR_CORE(T,N) \
int N##_add(T element) { \
if (N##_elements == N##_allocated) { \
if (N##_allocated == 0) { \
N##_allocated = 12; \
} else { \
N##_allocated *= 2; \
} \
void *temp = mem_a(N##_allocated * sizeof(T)); \
if (!temp) { \
mem_d(temp); \
return -1; \
} \
memcpy(temp, N##_data, (N##_elements * sizeof(T))); \
mem_d(N##_data); \
N##_data = (T*)temp; \
} \
N##_data[N##_elements] = element; \
return N##_elements++; \
} \
int N##_put(T* elements, size_t len) { \
len --; \
elements--; \
while (N##_add(*++elements) != -1 && len--); \
return N##_elements; \
}
/* Builds a full vector inspot */
#define VECTOR_MAKE(T,N) \
VECTOR_TYPE(T,N); \
VECTOR_CORE(T,N)
/* Builds a vector add function pointer for inside structures */
#define VECTOR_IMPL(T,N) int (*N##_add)(T)
//===================================================================
//=========================== code.c ================================
//===================================================================
enum {
TYPE_VOID ,
TYPE_STRING ,
TYPE_FLOAT ,
TYPE_VECTOR ,
TYPE_ENTITY ,
TYPE_FIELD ,
TYPE_FUNCTION ,
TYPE_POINTER
};
/*
* 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_chars );
*/
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_chars_add (char);
int code_statements_put(prog_section_statement*, size_t);
int code_defs_put (prog_section_def*, size_t);
int code_fields_put (prog_section_field*, size_t);
int code_functions_put (prog_section_function*, size_t);
int code_globals_put (int*, size_t);
int code_chars_put (char*, size_t);
extern long code_statements_elements;
extern long code_chars_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 =============================
//===================================================================
static const struct {
const char *m; /* menomic */
const size_t o; /* operands */
const size_t l; /* menomic len */
} const asm_instr[] = {
[INSTR_DONE] = { "DONE" , 1, 4 },
[INSTR_MUL_F] = { "MUL_F" , 3, 5 },
[INSTR_MUL_V] = { "MUL_V" , 3, 5 },
[INSTR_MUL_FV] = { "MUL_FV" , 3, 6 },
[INSTR_MUL_VF] = { "MUL_VF" , 3, 6 },
[INSTR_DIV_F] = { "DIV" , 0, 3 },
[INSTR_ADD_F] = { "ADD_F" , 3, 5 },
[INSTR_ADD_V] = { "ADD_V" , 3, 5 },
[INSTR_SUB_F] = { "SUB_F" , 3, 5 },
[INSTR_SUB_V] = { "DUB_V" , 3, 5 },
[INSTR_EQ_F] = { "EQ_F" , 0, 4 },
[INSTR_EQ_V] = { "EQ_V" , 0, 4 },
[INSTR_EQ_S] = { "EQ_S" , 0, 4 },
[INSTR_EQ_E] = { "EQ_E" , 0, 4 },
[INSTR_EQ_FNC] = { "ES_FNC" , 0, 6 },
[INSTR_NE_F] = { "NE_F" , 0, 4 },
[INSTR_NE_V] = { "NE_V" , 0, 4 },
[INSTR_NE_S] = { "NE_S" , 0, 4 },
[INSTR_NE_E] = { "NE_E" , 0, 4 },
[INSTR_NE_FNC] = { "NE_FNC" , 0, 6 },
[INSTR_LE] = { "LE" , 0, 2 },
[INSTR_GE] = { "GE" , 0, 2 },
[INSTR_LT] = { "LT" , 0, 2 },
[INSTR_GT] = { "GT" , 0, 2 },
[INSTR_LOAD_F] = { "FIELD_F" , 0, 7 },
[INSTR_LOAD_V] = { "FIELD_V" , 0, 7 },
[INSTR_LOAD_S] = { "FIELD_S" , 0, 7 },
[INSTR_LOAD_ENT] = { "FIELD_ENT" , 0, 9 },
[INSTR_LOAD_FLD] = { "FIELD_FLD" , 0, 9 },
[INSTR_LOAD_FNC] = { "FIELD_FNC" , 0, 9 },
[INSTR_ADDRESS] = { "ADDRESS" , 0, 7 },
[INSTR_STORE_F] = { "STORE_F" , 0, 7 },
[INSTR_STORE_V] = { "STORE_V" , 0, 7 },
[INSTR_STORE_S] = { "STORE_S" , 0, 7 },
[INSTR_STORE_ENT] = { "STORE_ENT" , 0, 9 },
[INSTR_STORE_FLD] = { "STORE_FLD" , 0, 9 },
[INSTR_STORE_FNC] = { "STORE_FNC" , 0, 9 },
[INSTR_STOREP_F] = { "STOREP_F" , 0, 8 },
[INSTR_STOREP_V] = { "STOREP_V" , 0, 8 },
[INSTR_STOREP_S] = { "STOREP_S" , 0, 8 },
[INSTR_STOREP_ENT] = { "STOREP_ENT", 0, 10},
[INSTR_STOREP_FLD] = { "STOREP_FLD", 0, 10},
[INSTR_STOREP_FNC] = { "STOREP_FNC", 0, 10},
[INSTR_RETURN] = { "RETURN" , 0, 6 },
[INSTR_NOT_F] = { "NOT_F" , 0, 5 },
[INSTR_NOT_V] = { "NOT_V" , 0, 5 },
[INSTR_NOT_S] = { "NOT_S" , 0, 5 },
[INSTR_NOT_ENT] = { "NOT_ENT" , 0, 7 },
[INSTR_NOT_FNC] = { "NOT_FNC" , 0, 7 },
[INSTR_IF] = { "IF" , 0, 2 },
[INSTR_IFNOT] = { "IFNOT" , 0, 5 },
[INSTR_CALL0] = { "CALL0" , 0, 5 },
[INSTR_CALL1] = { "CALL1" , 0, 5 },
[INSTR_CALL2] = { "CALL2" , 0, 5 },
[INSTR_CALL3] = { "CALL3" , 0, 5 },
[INSTR_CALL4] = { "CALL4" , 0, 5 },
[INSTR_CALL5] = { "CALL5" , 0, 5 },
[INSTR_CALL6] = { "CALL6" , 0, 5 },
[INSTR_CALL7] = { "CALL7" , 0, 5 },
[INSTR_CALL8] = { "CALL8" , 0, 5 },
[INSTR_STATE] = { "STATE" , 0, 5 },
[INSTR_GOTO] = { "GOTO" , 0, 4 },
[INSTR_AND] = { "AND" , 0, 3 },
[INSTR_OR] = { "OR" , 0, 2 },
[INSTR_BITAND] = { "BITAND" , 0, 6 },
[INSTR_BITOR] = { "BITOR" , 0, 5 }
};
void asm_init (const char *, FILE **);
void asm_close(FILE *);
void asm_parse(FILE *);
//======================================================================
//============================= main.c =================================
//======================================================================
enum {
COMPILER_QCC, /* circa QuakeC */
COMPILER_FTEQCC, /* fteqcc QuakeC */
COMPILER_QCCX, /* qccx QuakeC */
COMPILER_GMQCC /* this QuakeC */
};
extern bool opts_debug;
extern bool opts_memchk;
extern bool opts_darkplaces_stringtablebug;
extern bool opts_omit_nullcode;
extern int opts_compiler;
#endif
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