* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
+#include <stdint.h>
+#include <stdlib.h>
#include "gmqcc.h"
+
+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 type is (I assume)
+ * 0 = ev_void
+ * 1 = ev_string
+ * 2 = ev_float
+ * 3 = ev_vector
+ * 4 = ev_entity
+ * 5 = ev_field
+ * 6 = ev_function
+ * 7 = ev_pointer
+ * 8 = ev_bad (is this right for uint16_t type?)
+ */
+ uint16_t type;
+ uint16_t offset; /* offset in file? (what about length) */
+ uint32_t name; /* offset in string table? (confused :() */
+} prog_section_both;
+
/*
- * This file is empty: This is where codegen will take place: Once the
- * parser is completed, right now it on;y creates parse trees. Syntax
- * checking and other convoluted things on the parse tree need to take
- * place much like a parser.
+ * var and field use the same structure. But lets not use the same
+ * name just for safety reasons? (still castable ...).
*/
+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;
+
+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) */
+ uint32_t crc16; /* What is this? */
+ 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; /* What is this? */
+ prog_section globals; /* What is this? */
+ uint32_t entfield; /* Number of entity fields */
+} prog_header;
+
+/*
+ * The macros below expand to a typesafe vector implementation, which
+ * can be viewed in gmqcc.h
+ *
+ * code_statements_data -- raw prog_section_statement array
+ * code_statements_elements -- number of elements
+ * code_statements_allocated -- size of the array allocated
+ * code_statements_add(T) -- add element (returns -1 on error)
+ *
+ * code_vars_data -- raw prog_section_var array
+ * code_vars_elements -- number of elements
+ * code_vars_allocated -- size of the array allocated
+ * code_vars_add(T) -- add element (returns -1 on error)
+ *
+ * code_fields_data -- raw prog_section_field array
+ * code_fields_elements -- number of elements
+ * code_fields_allocated -- size of the array allocated
+ * code_fields_add(T) -- add element (returns -1 on error)
+ *
+ * code_functions_data -- raw prog_section_function array
+ * code_functions_elements -- number of elements
+ * code_functions_allocated -- size of the array allocated
+ * code_functions_add(T) -- add element (returns -1 on error)
+ *
+ * code_globals_data -- raw prog_section_def array
+ * code_globals_elements -- number of elements
+ * code_globals_allocated -- size of the array allocated
+ * code_globals_add(T) -- add element (returns -1 on error)
+ *
+ * code_strings_data -- raw char* array
+ * code_strings_elements -- number of elements
+ * code_strings_allocated -- size of the array allocated
+ * code_strings_add(T) -- add element (returns -1 on error)
+ */
+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 );
+prog_header code_header ={0};
+
+void code_init() {
+ /*
+ * The way progs.dat is suppose to work is odd, there needs to be
+ * some null (empty) statements, functions, and 28 globals
+ */
+ prog_section_function empty_function = {0,0,0,0,0,0,0,{0}};
+ prog_section_statement empty_statement = {0,{0},{0},{0}};
+ int i;
+ for(i = 0; i < 28; i++)
+ code_globals_add(0);
+
+ code_strings_add ('\0');
+ code_functions_add (empty_function);
+ code_statements_add(empty_statement);
+}
+
+void code_test() {
+ const char *X;
+ size_t size = sizeof(X);
+ size_t iter = 0;
+
+ #define FOO(Y) \
+ X = Y; \
+ size = sizeof(Y); \
+ for (iter=0; iter < size; iter++) { \
+ code_strings_add(X[iter]); \
+ }
+
+ FOO("m_init");
+ FOO("print");
+ FOO("hello world\n");
+ FOO("m_keydown");
+ FOO("m_draw");
+ FOO("m_toggle");
+ FOO("m_shutdown");
+
+ code_globals_add(1); /* m_init */
+ code_globals_add(2); /* print */
+ code_globals_add(14); /* hello world in string table */
+
+ /* now the defs */
+ code_defs_add((prog_section_def){.type=TYPE_VOID, .offset=28/*globals[28]*/, .name=1 }); /* m_init */
+ code_defs_add((prog_section_def){.type=TYPE_FUNCTION,.offset=29/*globals[29]*/, .name=8 }); /* print */
+ code_defs_add((prog_section_def){.type=TYPE_STRING, .offset=30/*globals[30]*/, .name=14}); /*hello_world*/
+
+ code_functions_add((prog_section_function){1, 0, 0, 0, .name=1, 0, 0, {0}}); /* m_init */
+ code_functions_add((prog_section_function){-4, 0, 0, 0, .name=8, 0, 0, {0}}); /* print */
+ code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13, 0,0, {0}}); /* m_keydown */
+ code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13+10, 0,0, {0}});
+ code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13+10+7, 0,0, {0}});
+ code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13+10+7+9, 0,0, {0}});
+
+ code_statements_add((prog_section_statement){INSTR_STORE_F, {30}/*30 is hello_world */, {OFS_PARM0}, {0}});
+ code_statements_add((prog_section_statement){INSTR_CALL1, {29}/*29 is print */, {0}, {0}});
+ code_statements_add((prog_section_statement){INSTR_RETURN, {0}, {0}, {0}});
+
+ code_header.version = 6;
+ code_header.crc16 = 0; /* TODO: */
+ code_header.statements = (prog_section){sizeof(prog_header), code_statements_elements };
+ code_header.defs = (prog_section){code_header.statements.offset + sizeof(prog_section_statement)*code_statements_elements, code_defs_elements };
+ code_header.fields = (prog_section){code_header.defs.offset + sizeof(prog_section_def) *code_defs_elements, code_fields_elements };
+ code_header.functions = (prog_section){code_header.fields.offset + sizeof(prog_section_field) *code_fields_elements, code_functions_elements };
+ code_header.globals = (prog_section){code_header.functions.offset + sizeof(prog_section_function) *code_functions_elements, code_globals_elements };
+ code_header.strings = (prog_section){code_header.globals.offset + sizeof(int) *code_globals_elements, code_strings_elements };
+ code_header.entfield = 0; /* TODO: */
+}
+
+/* program header */
+void code_write() {
+ code_init();
+ code_test();
+
+ FILE *fp = fopen("program.dat", "wb");
+ fwrite(&code_header, 1, sizeof(prog_header), fp);
+ fwrite(code_statements_data, 1, sizeof(prog_section_statement)*code_statements_elements, fp);
+ fwrite(code_defs_data, 1, sizeof(prog_section_def) *code_defs_elements, fp);
+ fwrite(code_fields_data, 1, sizeof(prog_section_field) *code_fields_elements, fp);
+ fwrite(code_functions_data, 1, sizeof(prog_section_function) *code_functions_elements, fp);
+ fwrite(code_globals_data, 1, sizeof(int) *code_globals_elements, fp);
+ fwrite(code_strings_data, 1, 1 *code_strings_elements, fp);
+
+ free(code_statements_data);
+ free(code_defs_data);
+ free(code_fields_data);
+ free(code_functions_data);
+ free(code_globals_data);
+ free(code_strings_data);
+
+ fclose(fp);
+}
projects / xonotic / gmqcc.git / blobdiff