Latest compatible version of Classicube from the original GitHub repository (https://github.com/ClassiCube/ClassiCube) that can be compiled on Classicube for PowerMac PPC running Mac OS X 10.4.

third_party/dsiwifi/arm_iop/source/wifi_debug.twl.c

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2021 Max Thomas
+ * This file is part of DSiWifi and is distributed under the MIT license.
+ * See dsiwifi_license.txt for terms of use.
+ */
+
+#include "wifi_debug.h"
+
+#include <nds.h>
+#include <nds/interrupts.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "dsiwifi_cmds.h"
+
+char _print_buffer[0x7C] = {0};
+extern int wifi_printf_allowed;
+
+void wifi_printf(char* fmt, ...)
+{
+    if (!wifi_printf_allowed) return;
+    
+    int lock = enterCriticalSection();
+    va_list args;
+    va_start(args, fmt);
+    vsnprintf(_print_buffer, 0x7C-1, fmt, args);
+    va_end(args);
+
+    wifi_ipcSendStringAlt(_print_buffer);
+    leaveCriticalSection(lock);
+}
+
+void wifi_printlnf(char* fmt, ...)
+{
+    if (!wifi_printf_allowed) return;
+    
+    int lock = enterCriticalSection();
+    va_list args;
+    va_start(args, fmt);
+    vsnprintf(_print_buffer, 0x7C-2, fmt, args);
+    strcat(_print_buffer, "\n");
+    va_end(args);
+
+    wifi_ipcSendStringAlt(_print_buffer);
+    leaveCriticalSection(lock);
+}
+
+void wifi_ipcSendStringAlt(char* ptr) {
+    if (!wifi_printf_allowed) return;
+
+    Wifi_FifoMsgExt msg;
+    msg.cmd = WIFI_IPCINT_DBGLOG;
+    for (int i = 0; i <= strlen(ptr); i += sizeof(msg.log_str)-1)
+    {
+        strncpy(msg.log_str, &ptr[i], sizeof(msg.log_str));
+        msg.log_str[sizeof(msg.log_str) - 1] = 0;
+
+        fifoSendDatamsg(FIFO_DSWIFI, sizeof(msg), (u8*)&msg);
+    }
+}