Stub out some GG methods; minor cleanup.

crater.c

@@ -7,6 +7,7 @@
 #include "src/assembler.h"
 #include "src/config.h"
 #include "src/disassembler.h"
+#include "src/gamegear.h"
 #include "src/logging.h"
 #include "src/rom.h"
 
@@ -43,10 +44,13 @@ int main(int argc, char *argv[])
             ERROR("couldn't load ROM image '%s': %s", config->rom_path, errmsg)
             retval = EXIT_FAILURE;
         } else {
-            printf("crater: emulating: %s\n", rom->name);
+            GameGear *gg = gamegear_create();
 
-            // TODO: emulate game here...
+            printf("crater: emulating: %s\n", rom->name);
+            gamegear_load(gg, rom);
+            gamegear_power(gg);
 
+            gamegear_destroy(gg);
             rom_close(rom);
         }
     }

src/assembler.h

@@ -2,6 +2,7 @@
    Released under the terms of the MIT License. See LICENSE for details. */
 
 #pragma once
+
 #include <stdbool.h>
 
 /* Structs */

src/config.h

@@ -2,6 +2,7 @@
    Released under the terms of the MIT License. See LICENSE for details. */
 
 #pragma once
+
 #include <stdbool.h>
 
 #define CONFIG_OK 0

src/disassembler.h

@@ -2,6 +2,7 @@
    Released under the terms of the MIT License. See LICENSE for details. */
 
 #pragma once
+
 #include <stdbool.h>
 
 /* Structs */

src/gamegear.c

@@ -0,0 +1,50 @@
+/* Copyright (C) 2014-2015 Ben Kurtovic <ben.kurtovic@gmail.com>
+   Released under the terms of the MIT License. See LICENSE for details. */
+
+#include "gamegear.h"
+#include "logging.h"
+
+/*
+    Create and return a pointer to a new GameGear object.
+
+    If memory could not be allocated, OUT_OF_MEMORY() is triggered.
+*/
+GameGear* gamegear_create()
+{
+    GameGear *gg = malloc(sizeof(GameGear));
+    if (!gg)
+        OUT_OF_MEMORY()
+
+    gg->rom = NULL;
+    return gg;
+}
+
+/*
+    Destroy a previously-allocated GameGear object.
+
+    Does *not* destroy any loaded ROM objects.
+*/
+void gamegear_destroy(GameGear* gg)
+{
+    free(gg);
+}
+
+/*
+    Load a ROM image into the GameGear object.
+
+    Does *not* steal the reference to the ROM object.
+*/
+void gamegear_load(GameGear* gg, ROM* rom)
+{
+    gg->rom = rom;
+}
+
+/*
+    Powers a GameGear object, beginning emulation.
+
+    This function call blocks until the GameGear is powered off.
+*/
+void gamegear_power(GameGear* gg)
+{
+    // TODO
+}

src/gamegear.h

@@ -0,0 +1,19 @@
+/* Copyright (C) 2014-2015 Ben Kurtovic <ben.kurtovic@gmail.com>
+   Released under the terms of the MIT License. See LICENSE for details. */
+
+#pragma once
+
+#include "rom.h"
+
+/* Structs */
+
+typedef struct {
+    ROM *rom;
+} GameGear;
+
+/* Functions */
+
+GameGear* gamegear_create();
+void gamegear_destroy(GameGear*);
+void gamegear_load(GameGear*, ROM*);
+void gamegear_power(GameGear*);

src/logging.h

@@ -10,29 +10,27 @@
 
 /* Internal usage only */
 
-#define LOG_MSG(level, extra, after, ...) {      \
-        fprintf(stderr, level ": " __VA_ARGS__); \
-        extra;                                   \
-        fprintf(stderr, "\n");                   \
-        after;                                   \
+#define LOG_MSG(dest, level, extra, after, ...) { \
+        fprintf(dest, level ": " __VA_ARGS__);    \
+        extra;                                    \
+        fprintf(dest, "\n");                      \
+        after;                                    \
     }
 #define PRINT_ERRNO() fprintf(stderr, ": %s", strerror(errno))
 
 /* Public logging macros */
 
-#define FATAL(...)       LOG_MSG("Error",   {},            exit(EXIT_FAILURE), __VA_ARGS__)
-#define FATAL_ERRNO(...) LOG_MSG("Error",   PRINT_ERRNO(), exit(EXIT_FAILURE), __VA_ARGS__)
-#define ERROR(...)       LOG_MSG("Error",   {},            {},                 __VA_ARGS__)
-#define ERROR_ERRNO(...) LOG_MSG("Error",   PRINT_ERRNO(), {},                 __VA_ARGS__)
-#define WARN(...)        LOG_MSG("Warning", {},            {},                 __VA_ARGS__)
-#define WARN_ERRNO(...)  LOG_MSG("Warning", PRINT_ERRNO(), {},                 __VA_ARGS__)
+#define FATAL(...)       LOG_MSG(stderr, "Error",   {},            exit(EXIT_FAILURE), __VA_ARGS__)
+#define FATAL_ERRNO(...) LOG_MSG(stderr, "Error",   PRINT_ERRNO(), exit(EXIT_FAILURE), __VA_ARGS__)
+#define ERROR(...)       LOG_MSG(stderr, "Error",   {},            {},                 __VA_ARGS__)
+#define ERROR_ERRNO(...) LOG_MSG(stderr, "Error",   PRINT_ERRNO(), {},                 __VA_ARGS__)
+#define WARN(...)        LOG_MSG(stderr, "Warning", {},            {},                 __VA_ARGS__)
+#define WARN_ERRNO(...)  LOG_MSG(stderr, "Warning", PRINT_ERRNO(), {},                 __VA_ARGS__)
 
 #ifdef DEBUG_MODE
-#define DEBUG(...)       LOG_MSG("[DEBUG]", {},            {},                 __VA_ARGS__)
-#define DEBUG_ERRNO(...) LOG_MSG("[DEBUG]", PRINT_ERRNO(), {},                 __VA_ARGS__)
+#define DEBUG(...)       LOG_MSG(stdout, "[DEBUG]", {},            {},                 __VA_ARGS__)
 #else
 #define DEBUG(...)       {}
-#define DEBUG_ERRNO(...) {}
 #endif
 
 #define OUT_OF_MEMORY() FATAL("couldn't allocate enough memory")

src/rom.c

@@ -220,7 +220,8 @@ void rom_close(ROM *rom)
 
     NULL is returned if the region code is invalid.
 
-    Region code information is taken from http://www.smspower.org/Development/ROMHeader.
+    Region code information is taken from:
+    http://www.smspower.org/Development/ROMHeader
 */
 const char* rom_region(const ROM *rom)
 {

src/rom.h

@@ -2,7 +2,9 @@
    Released under the terms of the MIT License. See LICENSE for details. */
 
 #pragma once
+
 #include <stdint.h>
+#include <stdlib.h>
 
 /* Error strings */
 

src/util.h

@@ -2,7 +2,8 @@
    Released under the terms of the MIT License. See LICENSE for details. */
 
 #pragma once
-#include "stdint.h"
+
+#include <stdint.h>
 
 /* Functions */