]> git.xonotic.org Git - xonotic/gmqcc.git/blobdiff - gmqcc.h
updated README
[xonotic/gmqcc.git] / gmqcc.h
diff --git a/gmqcc.h b/gmqcc.h
index 29949f0b89e600dcaa7e2d0ecaef52748e4791c5..e5d1a5603bb5965cb7d31c9eedab700771063161 100644 (file)
--- a/gmqcc.h
+++ b/gmqcc.h
  */
 #ifndef GMQCC_HDR
 #define GMQCC_HDR
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
 #include <stdio.h>
+#include <ctype.h>
+/*
+ * 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 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];
 
 //===================================================================
 //============================ lex.c ================================
@@ -33,10 +78,8 @@ struct lex_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?         */
@@ -176,6 +219,66 @@ void  util_debug   (const char *, const char *, ...);
 #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
@@ -192,47 +295,39 @@ enum {
        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,
@@ -254,10 +349,45 @@ enum {
        INSTR_GOTO,
        INSTR_AND,
        INSTR_OR,
-       
        INSTR_BITAND,
        INSTR_BITOR
 };
 
-void code_write();
+/*
+ * 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