(function(){/*
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
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 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
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 for purposes of the GNU General Public License, and the author does not claim any copyright
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 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
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 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 It has been adapted from the JavaScript PDP 11/70 Emulator v1.3 written by Paul Nankervis
 (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html.  This code
 may be used freely provided the original author name is acknowledged in any modified source code.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
 as to their contents.
 Jeff Parsons 2012-2016

 This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.

 PCjs is free software: you can redistribute it and/or modify it under the terms of the
 GNU General Public License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.

 PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with PCjs.  If not,
 see <http://www.gnu.org/licenses/gpl.html>.

 You are required to include the above copyright notice in every source code file of every
 copy or modified version of this work, and to display that copyright notice on every screen
 that loads or runs any version of this software (see COPYRIGHT in /modules/shared/lib/defines.js).

 Some PCjs files also attempt to load external resource files, such as character-image files,
 ROM files, and disk image files. Those external resource files are not considered part of PCjs
 for purposes of the GNU General Public License, and the author does not claim any copyright
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k.yd=function(a){this.f.Wa=a;a&64&&Qb(this.b,this.f.qc,1E3/60);this.f.Wa=a&-129};k.fd=function(){var a=this.b;return a.G&62337|a.za<<5|a.Aa<<1};k.zd=function(a){var b=4,c=this.b;c.G=a&=62337;c.za=a>>5&3;c.Aa=a>>1&15;c.ic=a&257?a&1?6:4:0;Sb(c);a=c.G;a&1|256&&(b=this.b.$a&16?1:2);this.g.rb=this.g.rb&-8|b};k.gd=function(){return Tb(this.b)};k.Ad=function(a){Ub(this.b,a&-1809|Tb(this.b)&1808);this.b.C|=128};
function Vb(a){var b=a.D,c,d,e,f=b.va>>13&7;"undefined"===typeof b.ra[f]&&(b.ra[f]={cache:[],postProcess:a.md,drive:f,blocksize:256,mapped:0,maxblock:b.gb[f]*b.ca[f],url:"rk"+f+".dsk"});b.P&=-129;switch(b.P>>1&7){case 0:b.Kb=2496;b.na=0;b.P=128;b.va=0;break;case 1:if((b.va>>4&511)>=b.gb[f]){b.na|=32832;b.P|=49152;break}if((b.va&15)>=b.ca[f]){b.na|=32800;b.P|=49152;break}c=(b.va>>4&511)*b.ca[f]+(b.va&15);d=(b.P&48)<<12|b.Jb;e=65536-b.Lb&65535;ec(a,b.ra[f],c,d,e);return;case 2:if((b.va>>4&511)>=b.gb[f])b.na|=
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function fc(a){var b=a.w,c,d,e,f=b.M>>8&3;b.M&=-2;"undefined"===typeof b.ra[f]&&(b.ra[f]={cache:[],postProcess:a.nd,drive:f,blocksize:128,mapped:1,maxblock:b.gb[f]*b.ca[f],url:"rl"+f+".dsk"});switch(b.M>>1&7){case 2:b.Xa&8&&(b.M&=63);b.Xa=b.Pc[f]|b.eb&64;break;case 3:1==(b.ea&3)&&(b.eb=b.ea&4?b.eb+(b.ea&65408)&65408|b.ea<<2&64:b.eb-(b.ea&65408)&65408|b.ea<<2&64,b.ea=b.eb);break;case 4:b.Xa=b.eb;break;case 5:if(b.ea>>6>=b.gb[f]){b.M|=37888;break}if((b.ea&63)>=b.ca[f]){b.M|=37888;break}c=(b.ea>>6)*
b.ca[f]+(b.ea&63);d=(b.Ta&63)<<16|b.Db;e=65536-b.Xa&65535;ec(a,b.ra[f],c,d,e);return;case 6:if(b.ea>>6>=b.gb[f])b.M|=37888;else if((b.ea&63)>=b.ca[f])b.M|=37888;else{c=(b.ea>>6)*b.ca[f]+(b.ea&63);d=(b.Ta&63)<<16|b.Db;e=65536-b.Xa&65535;a.Yb(b.ra[f],c,d,e);return}}K(a.b,20,5,112,function(){b.M|=129;return!!(b.M&64)})}
k.nd=function(a,b,c,d,e){var f=this.w;f.Db=d&65535;f.M=f.M&-49|d>>12&48;f.Ta=d>>16&63;f.ea=~~(c/f.ca[b.La])<<6|c%f.ca[b.La];f.eb=f.ea;f.Xa=65536-e&65535;switch(a){case 1:f.M|=33792;break;case 2:f.M|=40960}K(this.b,20,5,112,function(){f.M|=129;return!!(f.M&64)})};function gc(a){a=a.B;a.T=2176;a.Ca=0;a.ta=[4544,4544,4544,4544,4544,4544,4544,4544];a.wb=[0,0,0,0,0,0,0,0];a.mb=a.xb=a.vb=a.bb=a.nc=0}
function hc(a,b){var c=a.B,d,e,f;c.T&=-16513;c.Ca&=-2049;c.ta[b]&=-1153;K(a.b,-1,0,172);"undefined"===typeof c.ra[b]&&(c.ra[b]={cache:[],postProcess:a.od,drive:b,blocksize:256,mapped:0,maxblock:c.cc[0]*c.fb[0]*c.ca[0],url:"rp"+b+".dsk"});switch(c.T&63){case 5:c.$b[b]=c.Pa[b];c.T|=32896;c.ta[b]|=32896;c.mb|=1<<b;break;case 9:gc(a);break;case 19:c.ta[b]|=64;break;case 49:if(c.Pa[b]>=c.cc[0]||c.Da[b]>>8>=c.fb[0]||(c.Da[b]&255)>=c.ca[0]){c.wb[b]|=1024;c.T|=49152;break}d=(c.Pa[b]*c.fb[0]+(c.Da[b]>>8))*
c.ca[0]+(c.Da[b]&255);e=(c.bb&63)<<16|c.vb;f=65536-c.xb&65535;ec(a,c.ra[b],d,e,f);return;case 57:if(c.Pa[b]>=c.cc[0]||c.Da[b]>>8>=c.fb[0]||(c.Da[b]&255)>=c.ca[0])c.wb[b]|=1024,c.T|=49152;else{d=(c.Pa[b]*c.fb[0]+(c.Da[b]>>8))*c.ca[0]+(c.Da[b]&255);e=(c.bb&63)<<16|c.vb;f=65536-c.xb&65535;a.Yb(c.ra[b],d,e,f);return}}K(a.b,3,5,172,function(){c.T=c.T&65534|128;c.ta[b]|=128;return!!(c.T&64)})}
k.od=function(a,b,c,d,e){var f=this.B;f.xb=65536-e&65535;f.vb=d&65535;f.T=f.T&-769|d>>8&768;f.bb=d>>16&63;e=~~(c/f.ca[0]);d=~~(e/f.fb[0]);f.Da[b.La]=e%f.fb[0]<<8|c%f.ca[0];f.$b[b.La]=f.Pa[b.La]=d;f.mb|=1<<b.La;c>=b.$c-1&&(f.ta[b.La]|=1024);switch(a){case 1:f.Ca|=512;f.T|=49152;break;case 2:f.Ca|=2048,f.T|=49152}K(this.b,20,5,172,function(){f.ta[b.La]|=128;f.T=f.T&65534|128;return!!(f.T&64)})};
function ic(a,b,c,d,e,f){var g=~~((f+c.Ua-1)/c.Ua),h=new XMLHttpRequest;2048>g&&d+2048<c.$c&&(g=2048);h.open("GET",c.url,!0);h.setRequestHeader("Range","bytes="+(d*c.Ua<<1)+"-"+(((d+g)*c.Ua<<1)-1));h.responseType="arraybuffer";h.onreadystatechange=function(){if(4==h.readyState){var g=b.bind(a),m,n,r,q;m=h.response;if(h.status&&206!=h.status||!m)c.Wb(1,c,d,e,f);else{m=new Uint8Array(m);n=d;for(q=0;q<m.length;){if("undefined"===typeof c.cache[n])for(c.cache[n]=[],r=0;r<c.Ua;r++)c.cache[n][r]=q<m.length?
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function ec(a,b,c,d,e){for(var f,g;0<e;){if("undefined"===typeof b.cache[c])for(b.cache[c]=[],f=0;f<b.Ua;f++)b.cache[c][f]=0;for(f=0;f<b.Ua&&0<e;f++){g=a.b.ub(b.Zc?jc(a.b,d):d);if(0>g){b.Wb(2,b,c,d,e);return}b.cache[c][f]=g;d+=2;--e}c++}b.Wb(0,b,c,d,e)}k.reset=function(){this.g.rb=this.g.rb&-120|20;this.f.Wa=0;this.D.P=128;this.w.M=128;gc(this)};
k.Rc=function(a,b,c){var d,e,f=this.b;switch(a&-64){case 4194240:switch(a&-2){case 4194300:0>b?d=f.ab&65280:(a&1&&(b<<=8),f.ab=b|255,d=0);break;case 4194298:if(0>b)d=f.mc;else{a&1&&(b<<=8);if(d=b&65024){e=d>>9;do d+=34;while(e>>=1)}f.mc=d;f.C|=2}break;case 4194294:if(70!==f.jb)return f.K(4,222);0>b?d=f.I:d=f.I=0;break;case 4194292:if(70!==f.jb)return f.K(4,224);d=1;break;case 4194290:if(70!==f.jb)return f.K(4,226);d=0;break;case 4194288:if(70!==f.jb)return f.K(4,228);d=61183;break;case 4194296:0<=
b&&!(a&1)&&(b&=255);case 4194286:case 4194284:case 4194282:case 4194280:case 4194278:case 4194276:case 4194274:case 4194272:if(70!==f.jb)return f.K(4,232);e=a-4194272>>1;0>b?d=f.hc[e]:(d=L(this,f.hc[e],a,b,c),0<=d&&(f.hc[e]=d));break;case 4194254:return a&1?f.O>>14&1?(0<=b&&(f.u[6]=b),d=f.u[6]):(0<=b&&(f.ya[3]=b),d=f.ya[3]):f.O>>14&0?(0<=b&&(f.u[6]=b),d=f.u[6]):(0<=b&&(f.ya[1]=b),d=f.ya[1]),d;case 4194252:case 4194250:case 4194248:return e=a&7,f.O&2048?(0<=b&&(f.u[e]=b),d=f.u[e]):(0<=b&&(f.Oa[e]=
b),d=f.Oa[e]),d;case 4194246:return a&1?(0<=b&&(f.u[7]=b),d=f.u[7]):f.O>>14&0?(0<=b&&(f.u[6]=b),d=f.u[6]):(0<=b&&(f.ya[0]=b),d=f.ya[0]),d;case 4194244:case 4194242:case 4194240:return e=a&7,f.O&2048?(0<=b&&(f.Oa[e]=b),d=f.Oa[e]):(0<=b&&(f.u[e]=b),d=f.u[e]),d;default:return f.I|=16,f.K(4,124)}break;case 4194176:e=a>>1&31;d=L(this,f.xa[3][e],a,b,c);0<=d&&(f.xa[3][e]=d,f.xa[3][e&15]&=65295);break;case 4194112:switch(a&-2){case 4194174:d=L(this,f.Zb,a,b,c);0<=d&&(f.Zb=d);break;case 4194172:d=f.Za;d&65280&&
(d=(d<<8|d>>8)&65535);break;case 4194168:0>b?d=this.g.wd&65535:(d=L(this,this.g.data,a,b,c),0<=d&&(this.g.data=d));break;default:return f.I|=16,f.K(4,126)}break;case 4194048:e=this.D;switch(a&-2){case 4194048:d=L(this,e.Kb,a,b,c);0<=d&&(e.Kb=d);break;case 4194050:d=L(this,e.na,a,b,c);0<=d&&(e.na=d);break;case 4194052:d=L(this,e.P,a,b,c);0<=b&&0<=d&&(e.P=d&-36993|e.P&36992,e.P&1&&Vb(this));break;case 4194054:d=L(this,e.Lb,a,b,c);0<=d&&(e.Lb=d);break;case 4194056:d=L(this,e.Jb,a,b,c);0<=d&&(e.Jb=d);
break;case 4194058:d=L(this,e.va,a,b,c);0<=d&&(e.va=d);break;case 4194060:break;case 4194062:d=L(this,e.Ic,a,b,c);0<=d&&(e.Ic=d);break;default:return f.I|=16,f.K(4,128)}break;case 4193728:var g=this.B;e=g.Ca&7;switch(a&-2){case 4193728:d=L(this,g.T,a,b,c);0<=b&&0<=d&&(g.bb=g.bb&60|d>>8&3,g.T=d&17279|g.T&34944|2048,d&1&&g.T&128?hc(this,e):192==(d&192)&&K(f,0,5,172));break;case 4193730:d=L(this,g.xb,a,b,c);0<=d&&(g.xb=d);break;case 4193732:d=L(this,g.vb,a,b,c);0<=d&&(g.vb=d&65534);break;case 4193734:d=
L(this,g.Da[e],a,b,c);0<=d&&(g.Da[e]=d&7967);break;case 4193736:d=L(this,g.Ca,a,b,c);0<=d&&(g.Ca=d&63|g.Ca&65472,d&128&&gc(this));break;case 4193738:d=g.ta[e];break;case 4193740:d=g.wb[e];break;case 4193742:d=L(this,g.mb,a,b,c);0<=d&&(g.mb=d&255);break;case 4193744:d=g.td[e];break;case 4193746:d=L(this,g.Jc,a,b,c);0<=d&&(g.Jc=d);break;case 4193748:d=L(this,g.Kc[e],a,b,c);0<=d&&(g.Kc[e]=d&1023);break;case 4193750:d=8210;break;case 4193752:d=g.ud[e];break;case 4193754:d=L(this,g.Lc[e],a,b,c);0<=d&&
(g.Lc[e]=d);break;case 4193756:d=L(this,g.Pa[e],a,b,c);0<=d&&(g.Pa[e]=d&511);break;case 4193758:g.$b[e]=g.Pa[e];d=g.$b[e];break;case 4193760:d=g.rd[e];break;case 4193762:d=g.sd[e];break;case 4193764:d=g.pd[e];break;case 4193766:d=g.qd[e];break;case 4193768:d=L(this,g.bb,a,b,c);0<=d&&(g.bb=d&63,g.T=g.T&-769|(d&3)<<8);break;case 4193770:d=L(this,g.nc,a,b,c);0<=d&&(g.nc=d);break;default:return f.I|=16,f.K(4,132)}break;case 4192512:e=this.w;switch(a&-2){case 4192512:d=L(this,e.M,a,b,c);0<=b&&0<=d&&(e.Ta=
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function Sf(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.i(">> "+b):(a.Z&&(a.i("ended assemble at "+J(a,a.Y.A)),a.R=a.Y,a.Z=!1),b="");var e=b.charAt(0);if('"'==e||"'"==e)return!0;a.ua=null;if(hb(a)&&0<b.length){a.Z&&(b="a "+J(a,a.Y.A)+" "+b);var f=!1,g=b.replace(/ +/g," ").split(" ");if(g&&g.length)for(var h=g[0],l=h.charAt(0),m=1;m<h.length;m++){var n=h.charAt(m);if("?"==l||"r"==l||"a">n||"z"<n){g[0]=h.substr(m);g.unshift(h.substr(0,m));break}}g[0]=g[0].toLowerCase();switch(g[0].charAt(0)){case "a":var r=
Ff(a,g[1],!0);if(r)if(a.Y=r,void 0===g[2])a.i("begin assemble at "+J(a,r.A)),a.Z=!0,M(a.b);else{var q;a.i("not supported yet");q=[];if(q.length){for(var u=0;u<q.length;u++)a.Mb(r,q[u],1);a.i(Tf(a,a.Y))}}break;case "b":a:{var z=g[0],v=g[1],A=b;if("?"==v)a.i("breakpoint commands:"),a.i("\tbp [a]\tset exec breakpoint at addr [a]"),a.i("\tbr [a]\tset read breakpoint at addr [a]"),a.i("\tbw [a]\tset write breakpoint at addr [a]"),a.i("\tbc [a]\tclear breakpoint at addr [a]"),a.i("\tbl\tlist all breakpoints"),
a.i("\tbn [n]\tbreak after [n] instruction(s)");else{var ya=z.charAt(1);if("l"==ya){var Lc;Lc=0+Rf(a,a.f);Lc+=Rf(a,a.S);(Lc+=Rf(a,a.G))||a.i("no breakpoints")}else if("n"==ya)a.qa=uf(a,v),a.i("break after "+a.qa+" instruction(s)");else if(void 0===v)a.i("missing breakpoint address");else{var T=X();if("*"!=v&&(T=Ff(a,v,!0),!T))break a;"c"==ya?null==T.A?(yf(a),a.i("all breakpoints cleared")):Pf(a,a.f,T)||Pf(a,a.S,T)||Pf(a,a.G,T)||a.i("breakpoint missing: "+J(a,T.A)):null!=T.A&&(Jf(a,T,A),"p"==ya?a.hb(a.f,
T):"r"==ya?a.hb(a.S,T):"w"==ya?a.hb(a.G,T):a.i("unknown breakpoint command: "+ya))}}}break;case "c":a.ib&&(a.ib.value="");break;case "d":a:{var Na,Oa=g[0],ia=g[1],za=g[2],ug=g[3];if("?"==ia){var Pa="";for(Na in H)a.Qa[Na]&&(Pa&&(Pa+=","),Pa+=Na);Pa+=",state,symbols";a.i("dump memory commands:");a.i("\tdb [a] [#]    dump # bytes at address a");a.i("\tdw [a] [#]    dump # words at address a");a.i("\tdd [a] [#]    dump # dwords at address a");a.i("\tdh [#] [#]    dump # instructions from history");Pa.length&&
a.i("dump extension commands:\n\t"+Pa)}else if("state"==ia){var ue=cg(a.D,!0);"console"==za?console.log(ue):(a.ib&&(a.ib.value=""),a.i(ue))}else if("symbols"==ia)for(var Mc=0;Mc<a.H.length;Mc++){var Nc=a.H[Mc],Qa;for(Qa in Nc.Ja)if("."!=Qa.charAt(0)){var ve=Nc.Ja[Qa].o;if(void 0!==ve){var we=Nc.Ja[Qa].l;we&&(Qa=we);a.i(J(a,ve)+" "+Qa)}}}else{if("d"==Oa){for(Na in H)if(g[1]==Na){var xe=a.Qa[Na];xe?(g.shift(),g.shift(),xe(g)):a.i("no dump registered for "+ia);break a}ia||(Oa=a.Ub||"db")}else a.Ub=Oa;
if("dh"==Oa){var ye=ia,ze=za,Ae="",Be=0,ca=a.ka,ja=a.N;if(ja.length){var Y=+ye||a.ob,jb=+ze||10;isNaN(Y)?Y=jb:Ae="more ";Y>ja.length&&(a.i("note: only "+ja.length+" available"),Y=ja.length);ca-=Y;0>ca&&(null==ja[ja.length-1].A?(Y=ca+Y,ca=0):ca+=ja.length);var Oc=[];"call"==ze&&(jb=1E5,Oc=["CALL"]);for(void 0!==ye&&a.i(Y+" instructions earlier:");0<jb&&ca!=a.ka;){var Ce=ja[ca++];if(null==Ce.A)break;var kb=X(Ce.A),vg=Y--,De=Tf(a,kb,"history",vg);(!Oc.length||0<=De.indexOf(Oc[0]))&&a.i(De);kb.fc&&(ca+=
kb.fc,jb-=kb.fc,Y-=kb.fc);ca>=ja.length&&(ca=0);a.ob=Y;Be++;jb--}}Be||(a.i("no "+Ae+"history available"),a.ob=void 0)}else{var Wb=Ff(a,ia);if(Wb){var Xb=0;za&&("l"==za.charAt(0)&&(za=za.substr(1)||ug),Xb=uf(a,za)>>>0,65536<Xb&&(Xb=65536));for(var lb="",mb="dd"==Oa?4:"dw"==Oa?2:1,Yb=mb*Xb||128,wg=Yb+15>>4||1;wg--&&0<Yb;){var Zb=0,Pc=0,nb,Qc="",Ee="",ia=J(a,Wb.A);for(nb=4==mb?16:a.ma;0<nb&&0<Yb;nb--){var $b=a.kb(Wb,1),Zb=Zb|$b<<(Pc++<<3);Pc==mb&&(Qc+=J(a,Zb,mb),Qc+=1==mb?9==nb?"-":" ":"  ",Zb=Pc=0);
Ee+=32<=$b&&128>$b?String.fromCharCode($b):".";Yb--}lb&&(lb+="\n");lb+=ia+"  "+Qc+(0==nb?" "+Ee:"")}lb&&a.i(lb);a.cb=Wb}}}}break;case "e":if("else"==g[0])break;var Ra,Rc,Sc,Tc,Uc=g[0],Vc=g[1];"eb"==Uc?(Ra=1,Rc=255,Sc=a.kb,Tc=a.Mb):"e"==Uc||"ew"==Uc?(Ra=2,Rc=65535,Sc=a.Ga,Tc=a.oc):Vc=null;if(null==Vc)a.i("edit memory commands:"),a.i("\teb [a] [...]  edit bytes at address a"),a.i("\tew [a] [...]  edit words at address a");else{var ac=Ff(a,Vc);if(ac)for(var bc=2;bc<g.length;bc++){var ob=sf(a,g[bc]);
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g[0]){var Xc;var pb=b.substr(2),pb=oa(pb);sf(a,pb)?(c||a.i("true: "+pb),Xc=!0):(c||a.i("false: "+pb),Xc=!1);Xc||(d=!1);break}f=!0;break;case "k":var zg=g[0];if("?"==g[1])a.i("stack trace commands:"),a.i("\tk\tshow frame addresses"),a.i("\tks\tshow symbol information");else{var Yc=0,Zc=X(),qb=X(a.b.u[6]);for(a.i("stack trace for "+J(a,qb.A));10>Yc;){for(var Aa=null,Ag=256;65536>qb.A>>>0;){Zc.A=a.Ga(qb,2);if(null==qb.A||!Ag--)break;if(!(Zc.A&1)){for(var Bg=a,cc=Zc,Ge=null,rb=cc.A,He=rb,$c=1;6>=$c&&
rb;$c++){if(2<$c){cc.A=rb;var dc=Tf(Bg,cc);if(0<=dc.indexOf("JSR")){var Ie=dc.indexOf(" ");if(rb+(dc.indexOf(" ",Ie+1)-Ie-1)/2==He){Ge=dc;break}}}rb-=2}cc.A=He;if(Aa=Ge)break}}if(!Aa||null==Aa)break;var Je=null;if("ks"==zg){var Ke=Aa.match(/[0-9A-F]+$/);Ke&&(Je=$f(a,Ke[0]))}Aa=na(Aa,50)+"  ;"+(Je||"stack="+J(a,qb.A));a.i(Aa);Yc++}Yc||a.i("no return addresses found")}break;case "l":if("ln"==g[0]){$f(a,g[1],!0);break}f=!0;break;case "m":a:{var ka,la=null,C=g[1];"?"==C&&(C=void 0);if(void 0!==C){var ta=
0;if("all"==C)ta=1878917119,C=null;else if("on"==C)la=!0,C=null;else if("off"==C)la=!1,C=null;else{"keys"==C&&(C="key");"kbd"==C&&(C="keyboard");for(ka in H)if(C==ka){ta=H[ka];la=!!(a.la&ta);break}if(!ta){a.i("unknown message category: "+C);break a}}if(ta)if("on"==g[2])a.la|=ta,la=!0;else if("off"==g[2]&&(a.la&=~ta,la=!1,1073741824==ta)){for(var ad=0;ad<a.wa.length;ad++)a.i(a.wa[ad]);a.wa=[]}}var Cg=0,sb="";for(ka in H)if(!C||C==ka){var Dg=!!(a.la&H[ka]);if(null===la||la==Dg)sb&&(sb+=","),++Cg%10||
(sb+="\n\t"),"key"==ka&&(ka="keys"),sb+=ka}void 0===C&&a.i("message commands:\n\tm [category] [on|off]\tturn categories on/off");a.i((null!==la?la?"messages on:  ":"messages off: ":"message categories:\n\t")+(sb||"none"));zf(a)}break;case "p":if("print"==g[0]){ag(a,b.substr(5));break}var Eg="pr"==g[0]?1:0;if(a.da)a.i("step in progress");else{var Le=X(a.b.u[7]);a.kb(Le);a.da?(a.hb(a.f,Le,!0),a.yb()||(a.D&&a.D.Ob(),a.da=0)):bg(a,Eg?"tr":"t")}break;case "r":if("reset"==b){a.D&&a.D.reset();break}Mf(a,
g);break;case "s":a:switch(g[1]){case "base":if(g[2]){var tb=+g[2];if(8==tb||10==tb||16==tb)a.ma=tb;else{a.i("invalid base: "+tb);break}}a.i("default base: "+a.ma);break;case "cs":var ub;void 0!==g[3]&&(ub=+g[3]);switch(g[2]){case "int":a.b.sb=ub;break;case "start":a.b.Hb=ub;break;case "stop":a.b.tb=ub;break;default:a.i("unknown cs option");break a}void 0!==ub&&Fc(a.b);a.i("checksums "+(a.b.v.pb?"enabled":"disabled"));break;case "sp":void 0!==g[2]&&(Kc(a.b,+g[2])||a.i("warning: using 1x multiplier, previous target not reached"));
a.i("target speed: "+(a.b.lb.toFixed(2)+"Mhz")+" ("+a.b.Ya+"x)");break;default:if(g[1]){a.i("unknown option: "+g[1]);break}case "?":a.i("debugger options:"),a.i("\tbase #\t\tset default base to #"),a.i("\tcs int #\tset checksum cycle interval to #"),a.i("\tcs start #\tset checksum cycle start count to #"),a.i("\tcs stop #\tset checksum cycle stop count to #"),a.i("\tsp #\t\tset speed multiplier to #")}break;case "t":bg(a,g[0],g[1]);break;case "u":Nf(a,g[1],g[2],8);break;case "v":if("var"==g[0]){Zf(a,
b.substr(3))||(d=!1);break}if("ver"==g[0]){a.i("PDPjs version 1.30.1 ("+a.b.ad+",RELEASE"+(wb?",TYPEDARRAYS":",LONGARRAYS")+")");a.i(window?window.navigator.userAgent:"");break}f=!0;break;case "?":if(g[1]){ag(a,b.substr(1));break}var bd="commands:",cd;for(cd in Bf)bd+="\n"+na(cd,9)+Bf[cd];Hd(a)||(bd+="\nnote: history disabled if no exec breakpoints");a.i(bd);break;default:f=!0}f&&(a.i("unknown command: "+b),d=!1)}}catch(Me){a.i("debugger error: "+(Me.stack||Me.message)),d=!1}return d}
function Gc(a,b,c){b=qf(a,b,c);for(var d in b)if(!Sf(a,b[+d]))return!1;return!0}La(function(){for(var a=D(document,"pdp11","debugger"),b=0;b<a.length;b++){var c=a[b],d=B(c),d=new xf(d);eb(d,c)}});
function dg(a,b,c){w.call(this,"Computer",a,dg,67108864);this.v.ia=!1;eg(this,b);this.R=Dc(this,"autoPower",a);this.D=0;this.da=a.busWidth||a.buswidth;this.f=fg;this.J=null;this.G=this.Y=!1;this.url=Dc(this,"url")||"";(Math.random()+.1).toString(36);this.g=gg(this);if(this.b=db("CPU",this.id)){this.j=db("Debugger",this.id);this.F=new zb({id:this.dc+".bus",busWidth:this.da},this.b,this.j);var d,e=bb(this.id);if((this.w=db("Panel",this.id))&&this.w.ib)for(b=0;b<e.length;b++)d=e[b],d.sa=this.w.sa,d.i=
this.w.i,d.ib=this.w.ib;this.i("PDPjs v1.30.1\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>");this.i("Portions adapted from the PDP-11/70 Emulator v1.3 by Paul Nankervis <paulnank@hotmail.com>");for(b=0;b<e.length;b++)d=e[b],d.Na&&d.Na(this,this.F,this.b,this.j);b=null;d=a.resume;void 0!==d&&(1<d.length?b=this.H=d:this.f=parseInt(d,10));var f;if(a=Dc(this,"state")||(f=!0,a.state))b=this.S=a,f||(this.G=!0,this.f=fg),this.f&&
(this.N=new N(this,"1.30.1"),hg(this.N)?b=null:delete this.N);!b&&this.f&&(b=ig(this))&&(this.G=!0);if(b){var g=this;ua(b,null,!0,function(a,b,c){c?(g.H=null,g.G=!1,g.sa("Unable to load machine state from server (error "+c+(b?": "+oa(b):"")+")")):(g.J=b,g.Y=!0);G(g)})}else G(this);this.L.power||(this.R=!0);!c&&this.R&&jg(this,this.Ib)}else t("Unable to find CPU component")}y(dg);var fg=0;
function eg(a,b){if(!b){var c;if("object"==typeof resources&&(c=resources.parms))try{b=eval("("+c+")")}catch(d){t(d.message+" ("+c+")")}}a.Z=b}function Dc(a,b,c){var d=b.toLowerCase(),d=Va[b]||Va[d];void 0===d&&a.Z&&(d=a.Z[b]);void 0===d&&c&&(d=c[b]);void 0===d&&"object"==typeof resources&&resources[b]&&(d=b);return d}function jg(a,b,c){for(var d=bb(a.id),e=0;e<=d.length;e++){var f=e<d.length?d[e]:a;if(!hb(f)){hb(f,function(){jg(a,b,c)});return}}b.call(a,c)}
function kg(a,b){var c=new N(a,"1.30.1","validate");if(hg(c)&&lg(c)){var d=c.get("timestamp"),e=b?b.get("timestamp"):"unknown";d!=e&&(a.sa("Machine state may be out-of-date\n("+d+" vs. "+e+")\nCheck your browser's local storage limits"),b||c.clear())}}k=dg.prototype;
k.Ib=function(a){void 0===a&&(a=this.f||(this.J?1:fg));if(!this.D){this.D++;var b=!1,c=!1;this.W=!1;var d=this.N||new N(this,"1.30.1");if(-1==a)b=!0;else if(a>fg){if(hg(d,this.J)){this.B=new N(this,"1.30.1","failsafe");hg(this.B)&&(mg(this,d),a=2,ng(this.B));this.B.set("timestamp",sa());og(this.B);var e=this.f&&!this.G;if(1==a||va("Click OK to restore the previous PDPjs machine state, or CANCEL to reset the machine.")){if(c=lg(d)){var f=d.get("code"),g=d.get("data");f&&("ok"==f?hg(d,g):("error"==
f&&"no machine state"!=g?(this.sa("Error: "+g),"unable to verify user"==g&&(Ca("user",""),this.g=null)):this.i(f+": "+g),ng(d),hg(d)?(c=lg(d),e=!0):c=!1))}e&&kg(this,c?d:null)}else 2==a&&d.clear()}else kg(this);delete this.J;delete this.N}e=bb(this.id);for(f=0;f<e.length;f++)g=e[f],g!==this&&g!=this.b&&(c=pg(this,g,d,b,c));b=[d,a,c];-1!=a?jg(this,this.vc,b):this.vc(b)}};
function pg(a,b,c,d,e){if(!b.v.ia){b.v.ia=!0;if(b.Ia){var f=null;e&&((f=c.get(b.id))||(f=c.get(b.id.replace(/[a-z0-9]\./i,"."))));"string"===typeof f&&(f=null);!b.Ia(f,d)&&f&&(t("Unable to restore state for "+b.type),a.S&&!a.Y?(c.clear(),a.f=fg,window&&window.location.reload()):a.W=!0,b.Ia(null),e=!1)}if(!d&&b.wc)for(a=b.wc.split("|"),c=0;c<a.length;c++)b.status(a[c])}return e}
k.vc=function(a){var b=a[0],c=0>a[1];a=a[2];this.ga=!0;this.v.ia=!0;var d=this.L.power;d&&(d.textContent="Shutdown");this.b&&(pg(this,this.b,b,c,a),this.b.Cb());this.W&&(mg(this,b),b.clear());!c&&this.B&&(this.B.clear(),delete this.B);this.D=0};
function mg(a,b){if(va("There may be a problem with your PDPjs machine.\n\nTo help us diagnose it, click OK to send this PDPjs machine state to http://www.pcjs.org.")){var c=a.g||"";b=b.toString();var d={app:"PDPjs",ver:"1.30.1"};d.url=a.url;d.user=c;d.type="bug";d.data=b;ua("http://www.pcjs.org/api/v1/report",d,!0)}}
function cg(a,b,c){var d,e="none";if(a.D)return null;a.D--;var f=new N(a,"1.30.1"),g=new N(a,"1.30.1","validate"),h=sa();g.set("timestamp",h);f.set("timestamp",h);f.set("version","1.30.1");f.set("url",window?window.location.href:null);f.set("browser",window?window.navigator.userAgent:"");a.b&&a.b.Ha&&(c&&a.b.ha(),d=a.b.Ha(b,c),"object"===typeof d&&f.set(a.b.id,d),c&&(a.b.v.ia=!1,!1===d&&(e=null)));for(var h=bb(a.id),l=0;l<h.length;l++){var m=h[l];m.v.ia&&(m.Ha&&(d=m.Ha(b,c),"object"===typeof d&&f.set(m.id,
d)),c&&(m.v.ia=!1,!1===d&&(e=null)))}e&&(c?(h=d=!1,b?(a.g&&qg(a,a.g,f.toString()),og(g)&&og(f)||(e=null,d=h=!0)):a.f&&(d=!0,h=3==a.f),d&&f.clear(h)):e=f.toString());c&&(a.v.ia=!1,b=a.L.power)&&(b.textContent="Power");a.D=0;return e}k.reset=function(){this.F&&this.F.reset&&(E(this,"Resetting "+this.F.type),this.F.reset());for(var a=bb(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.F&&c.reset&&(E(this,"Resetting "+c.type),c.reset())}};
k.start=function(a,b){for(var c=bb(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.start&&e.start(a,b)}};k.stop=function(a,b){for(var c=bb(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.stop&&e.stop(a,b)}};
k.oa=function(a,b,c){var d=this;switch(b){case "power":return this.L[b]=c,c.onclick=function(){d.D||(d.v.ia?cg(d,!1,!0):jg(d,d.Ib))},!0;case "reset":return this.L[b]=c,c.onclick=function(){if(d.v.ia&&!d.D)if(d.f&&!d.H){var a=va("Click OK to save changes to this PDPjs machine.\n\nWARNING: If you CANCEL, all disk changes will be discarded.");cg(d,a,!0);!a&&d.S?window&&window.location.reload():d.Ib(fg)}else d.reset(),d.b&&d.b.Cb()},!0;case "save":if(fa())c.parentNode.removeChild(c);else return this.L[b]=
c,c.onclick=function(){var a=gg(d,!0);if(a){var b=!!(d.f&&!d.H||d.S),c=cg(d,b);b?qg(d,a,c):d.sa("Resume disabled, machine state not saved")}},!0}return!1};
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