Initial commit

examples/usb-speaker/arm9/source/main.cpp

@@ -0,0 +1,45 @@
+#include <nds/ndstypes.h>
+#include <libtwl/gfx/gfxStatus.h>
+#include <libtwl/mem/memExtern.h>
+#include <libtwl/rtos/rtosIrq.h>
+#include <libtwl/rtos/rtosThread.h>
+#include <libtwl/rtos/rtosEvent.h>
+#include <libtwl/ipc/ipcSync.h>
+#include <libtwl/ipc/ipcFifoSystem.h>
+
+static rtos_event_t sVblankEvent;
+
+static void vblankIrq(u32 irqMask)
+{
+    rtos_signalEvent(&sVblankEvent);
+}
+
+int main(int argc, char* argv[])
+{
+    *(vu32*)0x04000000 = 0x10000;
+    *(vu16*)0x05000000 = 31 << 5;
+    *(vu16*)0x0400006C = 0;
+
+    mem_setDsCartridgeCpu(EXMEMCNT_SLOT1_CPU_ARM7);
+
+    rtos_initIrq();
+    rtos_startMainThread();
+    ipc_initFifoSystem();
+
+    rtos_createEvent(&sVblankEvent);
+
+    while (ipc_getArm7SyncBits() != 7);
+
+    ipc_setArm9SyncBits(6);
+
+    rtos_setIrqFunc(RTOS_IRQ_VBLANK, vblankIrq);
+    rtos_enableIrqMask(RTOS_IRQ_VBLANK);
+    gfx_setVBlankIrqEnabled(true);
+
+    while (true)
+    {
+        rtos_waitEvent(&sVblankEvent, true, true);
+    }
+
+    return 0;
+}