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gmqcc/code.c
Dale Weiler 477e80f1fb tabulators->four spaces
2012-04-17 16:24:22 -04:00

196 lines
8.8 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.
*/
#include "gmqcc.h"
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 );
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}});
}
void code_write() {
prog_header code_header={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: */
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);
mem_d(code_statements_data);
mem_d(code_defs_data);
mem_d(code_fields_data);
mem_d(code_functions_data);
mem_d(code_globals_data);
mem_d(code_strings_data);
util_debug("GEN","wrote program.dat:\n\
version: = %d\n\
crc16: = %d\n\
entfield: = %d\n\
statements {.offset = % 8d, .length = % 8d}\n\
defs {.offset = % 8d, .length = % 8d}\n\
fields {.offset = % 8d, .length = % 8d}\n\
functions {.offset = % 8d, .length = % 8d}\n\
globals {.offset = % 8d, .length = % 8d}\n\
strings {.offset = % 8d, .length = % 8d}\n",
code_header.version,
code_header.crc16,
code_header.entfield,
code_header.statements.offset,
code_header.statements.length,
code_header.defs.offset,
code_header.defs.length,
code_header.fields.offset,
code_header.fields.length,
code_header.functions.offset,
code_header.functions.length,
code_header.strings.offset,
code_header.strings.length,
code_header.globals.offset,
code_header.globals.length
);
fclose(fp);
}
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