diff --git a/src/core/playdate/SDL_playdate.c b/src/core/playdate/SDL_playdate.c
new file mode 100644
index 0000000000..60432e76c6
--- /dev/null
+++ b/src/core/playdate/SDL_playdate.c
@@ -0,0 +1,126 @@
+#include "../../SDL_internal.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+#ifdef PLAYDATE
+
+#include "pd_api.h"
+
+#define MAX_DESCRIPTORS         64
+#define RESERVED_DESCRIPTORS    3
+
+static FILE *file_descriptors[MAX_DESCRIPTORS];
+
+#ifndef TARGET_SIMULATOR
+extern int _start;
+
+void* _sbrk(int incr)
+{
+    static unsigned char *heap = NULL;
+    unsigned char *prev_heap;
+
+    if (heap == NULL) {
+        heap = (unsigned char *)&_start;
+    }
+
+    prev_heap = heap;
+    heap += incr;
+
+    return prev_heap;
+}
+#endif
+
+extern int _write(SDFile *file, char *ptr, int len)
+{
+    return pd->file->write(file, ptr, len);
+}
+
+extern int _read(SDFile *file, char *ptr, int len)
+{
+    return pd->file->read(file, ptr, len);
+}
+
+extern SDFile* _open(const char *filename, const char *mode)
+{
+    return pd->file->open(filename, kFileRead|kFileReadData|kFileWrite|kFileAppend);
+}
+
+extern int _close(SDFile *file)
+{
+    return pd->file->close(file);
+}
+
+extern int _fstat(const char *file, struct stat *st)
+{
+    FileStat result;
+    struct tm ltm;
+
+    int rc = pd->file->stat(file, &result);
+
+    if (!rc) {
+        ltm.tm_sec = result.m_second;
+        ltm.tm_min = result.m_minute;
+        ltm.tm_hour = result.m_hour;
+        ltm.tm_mday = result.m_day;
+        ltm.tm_mon = result.m_month;
+        ltm.tm_year = result.m_year;
+
+        st->st_dev = 0;
+        st->st_ino = 0;
+        st->st_mode = 0;
+        st->st_nlink = 0;
+        st->st_uid = 0;
+        st->st_gid = 0;
+        st->st_rdev = 0;
+        st->st_size = result.size;
+        st->st_atime = st->st_mtime = st->st_ctime = mktime(&ltm);
+        st->st_blksize = 0;
+        st->st_blocks = 0;
+    }
+
+    return rc;
+}
+
+extern int _isatty(int file)
+{
+    if (file < RESERVED_DESCRIPTORS) {
+        return 1;
+    }
+    if (file >= MAX_DESCRIPTORS || file_descriptors[file] == NULL) {
+        errno = EBADF;
+        return -1;
+    }
+    return 0;
+}
+
+extern int _lseek(SDFile *file, int pos, int whence)
+{
+    return pd->file->seek(file, pos, whence);
+}
+
+extern void _exit(int code)
+{
+    while(1) { /* noop */ }
+}
+
+extern void* realloc(void* ptr, size_t size) {
+    return pd->system->realloc(ptr, size);
+}
+
+extern void* malloc(size_t size) {
+    return pd->system->realloc(NULL, size);
+}
+
+extern void* calloc(size_t count, size_t size) {
+    return memset(malloc(count * size), 0, count * size);
+}
+
+extern void free(void* ptr) {
+    if (realloc(ptr, 0)) { /* noop */ }
+}
+
+#endif /* PLAYDATE */
+
+/* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/main/playdate/SDL_playdate_main.c b/src/main/playdate/SDL_playdate_main.c
index bdc2a122ce..7b93728327 100644
--- a/src/main/playdate/SDL_playdate_main.c
+++ b/src/main/playdate/SDL_playdate_main.c
@@ -23,19 +23,8 @@
 
 #include "../../SDL_internal.h"
 
-#include <errno.h>
-#include <stdio.h>
-#include <sys/stat.h>
-
 #if defined(SDL_VIDEO_DRIVER_PLAYDATE) && !defined(TARGET_SIMULATOR)
 
-#include "pd_api.h"
-
-#define MAX_DESCRIPTORS         64
-#define RESERVED_DESCRIPTORS    3
-
-static FILE *file_descriptors[MAX_DESCRIPTORS];
-
 /* noop - just a stub */
 int
 main(int argc, char *argv[])
@@ -43,111 +32,4 @@ main(int argc, char *argv[])
     return 0;
 }
 
-#ifndef TARGET_SIMULATOR
-extern int _start;
-
-void* _sbrk(int incr)
-{
-    static unsigned char *heap = NULL;
-    unsigned char *prev_heap;
-
-    if (heap == NULL) {
-        heap = (unsigned char *)&_start;
-    }
-
-    prev_heap = heap;
-    heap += incr;
-
-    return prev_heap;
-}
-#endif
-
-extern int _write(SDFile *file, char *ptr, int len)
-{
-    return pd->file->write(file, ptr, len);
-}
-
-extern int _read(SDFile *file, char *ptr, int len)
-{
-    return pd->file->read(file, ptr, len);
-}
-
-extern SDFile* _open(const char *filename, const char *mode)
-{
-    return pd->file->open(filename, kFileRead|kFileReadData|kFileWrite|kFileAppend);
-}
-
-extern int _close(SDFile *file)
-{
-    return pd->file->close(file);
-}
-
-extern int _fstat(const char *file, struct stat *st)
-{
-    FileStat result;
-    struct tm ltm;
-
-    int rc = pd->file->stat(file, &result);
-
-    if (!rc) {
-        ltm.tm_sec = result.m_second;
-        ltm.tm_min = result.m_minute;
-        ltm.tm_hour = result.m_hour;
-        ltm.tm_mday = result.m_day;
-        ltm.tm_mon = result.m_month;
-        ltm.tm_year = result.m_year;
-
-        st->st_dev = 0;
-        st->st_ino = 0;
-        st->st_mode = 0;
-        st->st_nlink = 0;
-        st->st_uid = 0;
-        st->st_gid = 0;
-        st->st_rdev = 0;
-        st->st_size = result.size;
-        st->st_atime = st->st_mtime = st->st_ctime = mktime(&ltm);
-        st->st_blksize = 0;
-        st->st_blocks = 0;
-    }
-
-    return rc;
-}
-
-extern int _isatty(int file)
-{
-    if (file < RESERVED_DESCRIPTORS) {
-        return 1;
-    }
-    if (file >= MAX_DESCRIPTORS || file_descriptors[file] == NULL) {
-        errno = EBADF;
-        return -1;
-    }
-    return 0;
-}
-
-extern int _lseek(SDFile *file, int pos, int whence)
-{
-    return pd->file->seek(file, pos, whence);
-}
-
-extern void _exit(int code)
-{
-    while(1) { /* noop */ }
-}
-
-extern void* realloc(void* ptr, size_t size) {
-    return pd->system->realloc(ptr, size);
-}
-
-extern void* malloc(size_t size) {
-    return pd->system->realloc(NULL, size);
-}
-
-extern void* calloc(size_t count, size_t size) {
-    return memset(malloc(count * size), 0, count * size);
-}
-
-extern void free(void* ptr) {
-    if (realloc(ptr, 0)) { /* noop */ }
-}
 #endif
\ No newline at end of file