IOS: boot original BootMii through MINI

2026-08-25 19:46:28 +02:00
parent 08c9886169
commit 5387658e0c
6 changed files with 194 additions and 10 deletions
@@ -178,6 +178,41 @@ TEST(StarletTimer, ZeroDelayAlarmMatchesImmediatelyAndUsesIRQW1C)
  EXPECT_EQ(system.GetWiiIPC().ReadStarletRegister(0x38) & INT_CAUSE_TIMER, INT_CAUSE_TIMER);
 }

+TEST(StarletGPIO, InterruptFlagIsWriteOneToClear)
+{
+  constexpr u32 hardware_base = 0x0d800000;
+  constexpr u32 gpio_interrupt_level = hardware_base + 0xec;
+  constexpr u32 gpio_interrupt_flag = hardware_base + 0xf0;
+  constexpr u32 gpio_interrupt_mask = hardware_base + 0xf4;
+  constexpr u32 gpio_owner = hardware_base + 0xfc;
+  constexpr u32 power = 1;
+  Core::DeclareAsCPUThread();
+  auto& system = Core::System::GetInstance();
+  system.GetWiiIPC().Reset();
+  StarletMemory memory(system);
+  memory.Reset();
+  const auto read_word = [&memory](u32 address) {
+    return static_cast<u32>(memory.Read8(address)) << 24 |
+           static_cast<u32>(memory.Read8(address + 1)) << 16 |
+           static_cast<u32>(memory.Read8(address + 2)) << 8 | memory.Read8(address + 3);
+  };
+  const auto write_word = [&memory](u32 address, u32 value) {
+    memory.Write8(address, static_cast<u8>(value >> 24));
+    memory.Write8(address + 1, static_cast<u8>(value >> 16));
+    memory.Write8(address + 2, static_cast<u8>(value >> 8));
+    memory.Write8(address + 3, static_cast<u8>(value));
+  };
+
+  // BootMii selects POWER as active-high, waits, then clears the pending flag.
+  // With the emulated front-panel button idle-low this must read back cleared.
+  write_word(gpio_interrupt_level, power);
+  write_word(gpio_interrupt_mask, power);
+  write_word(gpio_owner, 0);
+  write_word(gpio_interrupt_flag, power);
+  EXPECT_EQ(read_word(gpio_interrupt_flag), 0u);
+  EXPECT_EQ(system.GetWiiIPC().ReadStarletRegister(0x38) & INT_CAUSE_GPIO_STARLET, 0u);
+}
+
 TEST(StarletAHBPROT, OriginalIOSMaskIsPreservedForBroadway)
 {
  constexpr u32 ahbprot = 0x0d800064;