IOS: add x64 Starlet JIT with guarded fastmem

Run-Wii-IOS-LLE.ps1

@@ -3,6 +3,8 @@ param(
 
   [string]$UserDirectory = '.starlet_user3',
 
+  [switch]$DisableJIT,
+
   [switch]$Wait
 )
 
@@ -17,6 +19,12 @@ if (-not (Test-Path -LiteralPath $dolphinPath)) {
 $dolphin = Start-Process -FilePath $dolphinPath -ArgumentList @(
   '-u', $userPath,
   '-n', '0000000100000002',
+  '-C', "Dolphin.Core.WiiStarletJIT=$(-not $DisableJIT)",
+  # Keep the next BootMii run diagnostic rather than observational. BootMii reports its loader
+  # stages and panic codes through GPIO bits 16-23; the Starlet bus logs those writes under IOS.
+  '-C', 'Logger.Options.WriteToFile=True',
+  '-C', 'Logger.Options.Verbosity=4',
+  '-C', 'Logger.Logs.IOS=True',
   '-v', 'D3D',
   '-p', 'win32'
 ) -WorkingDirectory $repoRoot -PassThru