More library cleanups and libc fixes

1 files changed, 53 insertions, 0 deletions

diff --git a/libpsn00b/libc/misc.c b/libpsn00b/libc/misc.c
new file mode 100644
index 0000000..d1fd9d3
--- /dev/null
+++ b/libpsn00b/libc/misc.c
@@ -0,0 +1,53 @@
+/*
+ * PSn00bSDK standard library (misc. functions)
+ * (C) 2022-2023 spicyjpeg - MPL licensed
+ */
+
+#undef SDK_LIBRARY_NAME
+
+#include <assert.h>
+#include <stdlib.h>
+
+/* Abort functions */
+
+void _assert_abort(const char *file, int line, const char *expr) {
+	_sdk_log("%s:%d: assert(%s)\n", file, line, expr);
+
+	for (;;)
+		__asm__ volatile("");
+}
+
+void abort(void) {
+	_sdk_log("abort()\n");
+
+	for (;;)
+		__asm__ volatile("");
+}
+
+void __cxa_pure_virtual(void) {
+	_sdk_log("__cxa_pure_virtual()\n");
+
+	for (;;)
+		__asm__ volatile("");
+}
+
+/* abs() */
+
+int abs(int value) {
+	return (value < 0) ? (-value) : value;
+}
+
+/* Pseudorandom number generator */
+
+static int _random_seed = 0;
+
+int rand(void) {
+	_random_seed *= 0x41c64e6d;
+	_random_seed += 12345;
+
+	return (_random_seed >> 16) & RAND_MAX;
+}
+
+void srand(int seed) {
+	_random_seed = seed;
+}