diff --git a/devices/pdp11/machine/1170/4mb/README.md b/devices/pdp11/machine/1170/4mb/README.md
new file mode 100644
index 000000000..316da4bc9
--- /dev/null
+++ b/devices/pdp11/machine/1170/4mb/README.md
@@ -0,0 +1,13 @@
+---
+layout: page
+title: PDP-11/70 with 4Mb and Front Panel
+permalink: /devices/pdp11/machine/1170/4mb/debugger/
+machines:
+  - id: test1170
+    type: pdp11
+    autoMount:
+      RL0:
+        path: http://archive.pcjs.org/disks/dec/rl01k/RL01K-RSTS-V70.json
+---
+
+{% include machine.html id="test1170" %}
diff --git a/devices/pdp11/machine/1170/4mb/debugger/README.md b/devices/pdp11/machine/1170/4mb/debugger/README.md
new file mode 100644
index 000000000..1096956fe
--- /dev/null
+++ b/devices/pdp11/machine/1170/4mb/debugger/README.md
@@ -0,0 +1,15 @@
+---
+layout: page
+title: PDP-11/70 with 4Mb, Front Panel, and Debugger
+permalink: /devices/pdp11/machine/1170/4mb/debugger/
+machines:
+  - id: test1170
+    type: pdp11
+    debugger: true
+    autoStart: true
+    autoMount:
+      RL0:
+        path: http://archive.pcjs.org/disks/dec/rl02k/RL02K-XXDP.json
+---
+
+{% include machine.html id="test1170" %}
diff --git a/devices/pdp11/machine/1170/4mb/debugger/machine.xml b/devices/pdp11/machine/1170/4mb/debugger/machine.xml
new file mode 100644
index 000000000..5665aa6bc
--- /dev/null
+++ b/devices/pdp11/machine/1170/4mb/debugger/machine.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-stylesheet type="text/xsl" href="/versions/pdpjs/1.30.5/machine.xsl"?>
+<machine id="test1170" class="pdp11" border="1" pos="center" background="#FAEBD7">
+	<name pos="center">PDP-11/70 with 4Mb, Front Panel and Debugger</name>
+	<computer id="computer" busWidth="22"/>
+	<cpu id="cpu" model="1170" cycles="6666667"/>
+	<ram id="ram" addr="0x00000" size="0x3BC000" file="/apps/pdp11/boot/monitor/BOOTMON.json"/>
+	<device id="default" type="default"/>
+	<serial id="dl11" adapter="0" binding="print"/>
+	<panel ref="/devices/pdp11/panel/1170/debugger/front.xml"/>
+	<debugger id="debugger" base="8" messages="" commands=""/>
+	<device ref="/devices/pdp11/pc11/default.xml"/>
+	<device ref="/devices/pdp11/rk11/default.xml"/>
+	<device ref="/devices/pdp11/rl11/default.xml"/>
+</machine>
diff --git a/devices/pdp11/machine/1170/4mb/machine.xml b/devices/pdp11/machine/1170/4mb/machine.xml
new file mode 100644
index 000000000..9317a3b51
--- /dev/null
+++ b/devices/pdp11/machine/1170/4mb/machine.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-stylesheet type="text/xsl" href="/versions/pdpjs/1.30.5/machine.xsl"?>
+<machine id="test1170" class="pdp11" border="1" pos="center" background="#FAEBD7">
+	<name pos="center">PDP-11/70 with 4Mb, Front Panel and Debugger</name>
+	<computer id="computer" busWidth="22"/>
+	<cpu id="cpu" model="1170" cycles="6666667"/>
+	<ram id="ram" addr="0x00000" size="0x3C0000" file="/apps/pdp11/boot/monitor/BOOTMON.json"/>
+	<device id="default" type="default"/>
+	<serial id="dl11" adapter="0" binding="print"/>
+	<panel ref="/devices/pdp11/panel/1170/front.xml"/>
+	<device ref="/devices/pdp11/pc11/default.xml"/>
+	<device ref="/devices/pdp11/rk11/default.xml"/>
+	<device ref="/devices/pdp11/rl11/default.xml"/>
+</machine>
diff --git a/modules/pdp11/lib/bus.js b/modules/pdp11/lib/bus.js
index 95ae13c45..a49303d25 100644
--- a/modules/pdp11/lib/bus.js
+++ b/modules/pdp11/lib/bus.js
@@ -103,6 +103,9 @@ function BusPDP11(parmsBus, cpu, dbg)
     this.nBlockMask = this.nBlockTotal - 1;
     this.assert(this.nBlockMask <= BusPDP11.BlockInfo.num.mask);
 
+    this.iBlockIOPageDefault = ((this.addrTotal - BusPDP11.IOPAGE_LENGTH) & this.nBusMask) >>> this.nBlockShift;
+    this.iBlockIOPageActive = this.iBlockIOPageDefault;
+
     /*
      * aIOHandlers is an array (ie, a hash) of I/O notification handlers, indexed by address, where each
      * entry contains an array:
@@ -171,7 +174,6 @@ BusPDP11.IOPAGE_LENGTH  =   0x2000;                             // ie, 8Kb
 BusPDP11.IOPAGE_MASK    = BusPDP11.IOPAGE_LENGTH - 1;
 
 BusPDP11.UNIBUS_22BIT   = 0x3C0000; /*017000000*/
-BusPDP11.MAX_MEMORY     = BusPDP11.UNIBUS_22BIT - 16384;        // Maximum memory address (need less memory for BSD 2.9 boot)
 
 BusPDP11.ERROR = {
     RANGE_INUSE:        1,
@@ -497,6 +499,7 @@ BusPDP11.prototype.setIOPageRange = function(nRange)
             addr = (1 << nRange);
             this.nBusMask = (addr - 1);
             addr -= BusPDP11.IOPAGE_LENGTH;
+            this.iBlockIOPageActive = (addr & this.nBusMask) >>> this.nBlockShift;
             this.aIOPrevBlocks = this.getMemoryBlocks(addr, BusPDP11.IOPAGE_LENGTH);
             if (this.aIOPageBlocks) {
                 this.setMemoryBlocks(addr, BusPDP11.IOPAGE_LENGTH, this.aIOPageBlocks);
@@ -922,17 +925,33 @@ BusPDP11.prototype.setMemoryBlocks = function(addr, size, aBlocks, type)
  */
 BusPDP11.prototype.getByte = function(addr)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
     return this.aMemBlocks[(addr & this.nBusMask) >>> this.nBlockShift].readByte(addr & this.nBlockLimit, addr);
 };
 
+/**
+ * getBlockDirect(addr)
+ *
+ * This checks for block requests matching the active IOPAGE block and redirects to the original block;
+ * conversely, if the request is for the default IOPAGE block, then the request is redirected to the active
+ * IOPAGE block.
+ *
+ * @this {BusPDP11}
+ * @param {number} addr is a physical address
+ * @return {MemoryPDP11}
+ */
+BusPDP11.prototype.getBlockDirect = function(addr)
+{
+    var iBlock = (addr & this.nBusMask) >>> this.nBlockShift;
+    var block = this.aMemBlocks[iBlock];
+    if (iBlock == this.iBlockIOPageActive && this.aIOPrevBlocks.length) {
+        block = this.aIOPrevBlocks[0];
+    } else if (iBlock == this.iBlockIOPageDefault) {
+        block = this.aMemBlocks[this.iBlockIOPageActive];
+    }
+    return block;
+};
+
 /**
  * getByteDirect(addr)
  *
@@ -944,17 +963,10 @@ BusPDP11.prototype.getByte = function(addr)
  */
 BusPDP11.prototype.getByteDirect = function(addr)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
     this.fFault = false;
     this.nDisableFaults++;
-    var b = this.aMemBlocks[(addr & this.nBusMask) >>> this.nBlockShift].readByteDirect(addr & this.nBlockLimit, addr);
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
+    var b = this.getBlockDirect(addr).readByteDirect(addr & this.nBlockLimit, addr);
     this.nDisableFaults--;
     return b;
 };
@@ -968,14 +980,7 @@ BusPDP11.prototype.getByteDirect = function(addr)
  */
 BusPDP11.prototype.getWord = function(addr)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
     var off = addr & this.nBlockLimit;
     var iBlock = (addr & this.nBusMask) >>> this.nBlockShift;
     if (!PDP11.WORDBUS && off == this.nBlockLimit) {
@@ -995,23 +1000,16 @@ BusPDP11.prototype.getWord = function(addr)
  */
 BusPDP11.prototype.getWordDirect = function(addr)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
     var w;
-    var off = addr & this.nBlockLimit;
-    var iBlock = (addr & this.nBusMask) >>> this.nBlockShift;
     this.fFault = false;
     this.nDisableFaults++;
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
+    var off = addr & this.nBlockLimit;
+    var block = this.getBlockDirect(addr);
     if (!PDP11.WORDBUS && off == this.nBlockLimit) {
-        w = this.aMemBlocks[iBlock++].readByteDirect(off, addr) | (this.aMemBlocks[iBlock & this.nBlockMask].readByteDirect(0, addr + 1) << 8);
+        w = block.readByteDirect(off, addr) | (this.getBlockDirect(addr + 1).readByteDirect(0, addr + 1) << 8);
     } else {
-        w = this.aMemBlocks[iBlock].readWordDirect(off, addr);
+        w = block.readWordDirect(off, addr);
     }
     this.nDisableFaults--;
     return w;
@@ -1026,14 +1024,7 @@ BusPDP11.prototype.getWordDirect = function(addr)
  */
 BusPDP11.prototype.setByte = function(addr, b)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
     this.aMemBlocks[(addr & this.nBusMask) >>> this.nBlockShift].writeByte(addr & this.nBlockLimit, b & 0xff, addr);
 };
 
@@ -1049,17 +1040,10 @@ BusPDP11.prototype.setByte = function(addr, b)
  */
 BusPDP11.prototype.setByteDirect = function(addr, b)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
     this.fFault = false;
     this.nDisableFaults++;
-    this.aMemBlocks[(addr & this.nBusMask) >>> this.nBlockShift].writeByteDirect(addr & this.nBlockLimit, b & 0xff, addr);
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
+    this.getBlockDirect(addr).writeByteDirect(addr & this.nBlockLimit, b & 0xff, addr);
     this.nDisableFaults--;
 };
 
@@ -1072,14 +1056,7 @@ BusPDP11.prototype.setByteDirect = function(addr, b)
  */
 BusPDP11.prototype.setWord = function(addr, w)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
     var off = addr & this.nBlockLimit;
     var iBlock = (addr & this.nBusMask) >>> this.nBlockShift;
     if (!PDP11.WORDBUS && off == this.nBlockLimit) {
@@ -1102,23 +1079,16 @@ BusPDP11.prototype.setWord = function(addr, w)
  */
 BusPDP11.prototype.setWordDirect = function(addr, w)
 {
-    /*
-     * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
-     * then we have a 22-bit address pointing to the top 256Kb range, so we must pass the address through the
-     * UNIBUS relocation map.
-     */
-    if (addr >= BusPDP11.UNIBUS_22BIT) {
-        addr = this.cpu.mapUnibus(addr);
-    }
-    var off = addr & this.nBlockLimit;
-    var iBlock = (addr & this.nBusMask) >>> this.nBlockShift;
     this.fFault = false;
     this.nDisableFaults++;
+    if (addr >= BusPDP11.UNIBUS_22BIT) addr = this.cpu.mapUnibus(addr);
+    var off = addr & this.nBlockLimit;
+    var block = this.getBlockDirect(addr);
     if (!PDP11.WORDBUS && off == this.nBlockLimit) {
-        this.aMemBlocks[iBlock++].writeByteDirect(off, w & 0xff, addr);
-        this.aMemBlocks[iBlock & this.nBlockMask].writeByteDirect(0, (w >> 8) & 0xff, addr + 1);
+        block.writeByteDirect(off, w & 0xff, addr);
+        this.getBlockDirect(addr + 1).writeByteDirect(0, (w >> 8) & 0xff, addr + 1);
     } else {
-        this.aMemBlocks[iBlock].writeWordDirect(off, w & 0xffff, addr);
+        block.writeWordDirect(off, w & 0xffff, addr);
     }
     this.nDisableFaults--;
 };
@@ -1246,8 +1216,8 @@ BusPDP11.prototype.restoreMemory = function(a)
 /**
  * getMemorySize(type)
  *
- * NOTE: The original pdp11.js defined MAX_MEMORY as IOBASE_UNIBUS - 16384, where IOBASE_UNIBUS
- * is 4Mb less 256Kb, and then it subtracted another 16Kb so that BSD 2.9 could boot.
+ * NOTE: The original pdp11.js defined a constant named MAX_MEMORY equal to UNIBUS_22BIT - 16384,
+ * where UNIBUS_22BIT is 4Mb less 256Kb, from which it then subtracted another 16Kb "for BSD 2.9 boot."
  *
  * @this {BusPDP11}
  * @param {number} type is one of the MemoryPDP11.TYPE constants (only RAM is currently supported)
diff --git a/modules/pdp11/lib/cpustate.js b/modules/pdp11/lib/cpustate.js
index b7b104008..306f061d0 100644
--- a/modules/pdp11/lib/cpustate.js
+++ b/modules/pdp11/lib/cpustate.js
@@ -271,12 +271,15 @@ CPUStatePDP11.prototype.resetMMU = function()
     this.mmuLastMode = 0;
     this.mmuMask = 0x3ffff;
 
-    this.lastAddr = 0;          // this is queried by the Panel when it's not using its own ADDRESS register
-    this.lastOp = 0;            // stores the PC and any auto-incs or auto-decs from the last opcode; used to update MMR1 and MMR2
+    this.addrLast = 0;          // this is queried by the Panel when it's not using its own ADDRESS register
+    this.opLast = 0;            // stores the PC and any auto-incs or auto-decs from the last opcode; used to update MMR1 and MMR2
 
     this.resetIRQs();
 
-    if (this.bus) this.setMemoryAccess();
+    if (this.bus) {
+        this.setMemoryAccess();
+        this.addrInvalid = this.bus.getMemorySize(MemoryPDP11.TYPE.RAM);
+    }
 };
 
 /**
@@ -356,11 +359,11 @@ CPUStatePDP11.prototype.setMMR0 = function(newMMR0)
         if (newMMR0 & PDP11.MMR0.ABORT) {
             /*
              * If updates to MMR0[1-7], MMR1, and MMR2 are being shut off (ie, MMR0.ABORT bits are transitioning
-             * from clear to set), then do one final sync with their real-time counterparts in lastOp.
+             * from clear to set), then do one final sync with their real-time counterparts in opLast.
              */
             if (!(this.regMMR0 & PDP11.MMR0.ABORT)) {
-                this.regMMR1 = (this.lastOp >> 16) & 0xffff;
-                this.regMMR2 = this.lastOp & 0xffff;
+                this.regMMR1 = (this.opLast >> 16) & 0xffff;
+                this.regMMR2 = this.opLast & 0xffff;
             }
         }
         /*
@@ -393,10 +396,10 @@ CPUStatePDP11.prototype.getMMR1 = function()
 {
     /*
      * If updates to MMR1 have not been shut off (ie, MMR0.ABORT bits are clear),
-     * then we are allowed to sync MMR1 with its real-time counterpart in lastOp.
+     * then we are allowed to sync MMR1 with its real-time counterpart in opLast.
      */
     if (!(this.regMMR0 & PDP11.MMR0.ABORT)) {
-        this.regMMR1 = (this.lastOp >> 16) & 0xffff;
+        this.regMMR1 = (this.opLast >> 16) & 0xffff;
     }
     var result = this.regMMR1;
     if (result & 0xff00) {
@@ -415,10 +418,10 @@ CPUStatePDP11.prototype.getMMR2 = function()
 {
     /*
      * If updates to MMR2 have not been shut off (ie, MMR0.ABORT bits are clear),
-     * then we are allowed to sync MMR2 with its real-time counterpart in lastOp.
+     * then we are allowed to sync MMR2 with its real-time counterpart in opLast.
      */
     if (!(this.regMMR0 & PDP11.MMR0.ABORT)) {
-        this.regMMR2 = this.lastOp & 0xffff;
+        this.regMMR2 = this.opLast & 0xffff;
     }
     return this.regMMR2;
 };
@@ -662,7 +665,7 @@ CPUStatePDP11.prototype.setNF = function()
 CPUStatePDP11.prototype.getOpcode = function()
 {
     var pc = this.regsGen[PDP11.REG.PC];
-    this.lastOp = pc;
+    this.opLast = pc;
     /*
      * If PC is unaligned, a BUS trap will be generated, and because it will generate an
      * exception, the next line (the equivalent of advancePC(2)) will not be executed, ensuring that
@@ -710,7 +713,7 @@ CPUStatePDP11.prototype.getPC = function()
  */
 CPUStatePDP11.prototype.getLastAddr = function()
 {
-    return this.lastAddr;
+    return this.addrLast;
 };
 
 /**
@@ -721,7 +724,7 @@ CPUStatePDP11.prototype.getLastAddr = function()
  */
 CPUStatePDP11.prototype.getLastPC = function()
 {
-    return this.lastOp & 0xffff;
+    return this.opLast & 0xffff;
 };
 
 /**
@@ -1365,14 +1368,14 @@ CPUStatePDP11.prototype.trap = function(vector, flag, reason)
      * diagnostic (PC 056710), which tests what happens when a misaligned read triggers a BUS trap,
      * and that trap then triggers an MMU trap during the first pushWord() below.
      *
-     * One would think it would be fine to zero those bits by setting lastOp to vector alone,
+     * One would think it would be fine to zero those bits by setting opLast to vector alone,
      * and then letting each of the pushWord() calls below shift their own 0xF6 auto-dec value into
-     * lastOp.  When the first pushWord() triggers an MMU trap, we obviously won't get to the second
+     * opLast.  When the first pushWord() triggers an MMU trap, we obviously won't get to the second
      * pushWord(), yet the diagnostic expects TWO auto-decs to be recorded.  I'm puzzled why the
      * hardware apparently indicates TWO auto-decs, if SP wasn't actually decremented twice, but who
      * am I to judge.
      */
-    this.lastOp = vector | 0xf6f60000;
+    this.opLast = vector | 0xf6f60000;
 
     /*
      * Read from kernel D space
@@ -1476,7 +1479,7 @@ CPUStatePDP11.prototype.getTrapStatus = function()
 /**
  * mapUnibus(addr)
  *
- * If bits 18-21 of addr are all set (which is implied by addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
+ * If bits 18-21 of addr are all set (which callers check using addr >= BusPDP11.UNIBUS_22BIT aka 0x3C0000),
  * then we have a 22-bit address pointing to the top 256Kb range, so if the UNIBUS relocation map is enabled,
  * we must pass the lower 18 bits of that address through the map.
  *
@@ -1532,7 +1535,7 @@ CPUStatePDP11.prototype.mapUnibus = function(addr)
 };
 
 /**
- * mapVirtualToPhysical(virtualAddress, access)
+ * mapVirtualToPhysical(addrVirtual, access)
  *
  * mapVirtualToPhysical() does memory management. It converts a 17-bit I/D virtual address to a
  * 22-bit physical address.  A real PDP 11/70 memory management unit can be enabled separately
@@ -1582,60 +1585,55 @@ CPUStatePDP11.prototype.mapUnibus = function(addr)
  * physical address to the next 8Kb page.
  *
  * @this {CPUStatePDP11}
- * @param {number} virtualAddress
+ * @param {number} addrVirtual
  * @param {number} access
  * @return {number}
  */
-CPUStatePDP11.prototype.mapVirtualToPhysical = function(virtualAddress, access)
+CPUStatePDP11.prototype.mapVirtualToPhysical = function(addrVirtual, access)
 {
-    var page, pdr, physicalAddress;
-
-    this.assert(!(virtualAddress & ~0x1ffff) && access);
+    var page, pdr, addr;
 
     /*
      * This can happen when the DSTMODE (MAINT) bit of MMR0 is set but *not* the ENABLED bit.
      */
     if (!(access & this.mmuEnable)) {
-        physicalAddress = virtualAddress & 0xffff;
-        if (physicalAddress >= BusPDP11.IOPAGE_16BIT) {
-            physicalAddress |= this.addrIOPage;
+        addr = addrVirtual & 0xffff;
+        if (addr >= BusPDP11.IOPAGE_16BIT) {
+            addr |= this.addrIOPage;
         }
-        return physicalAddress;
+        return addr;
     }
 
-    page = virtualAddress >> 13;
+    page = addrVirtual >> 13;
     if (!(this.regMMR3 & this.mapMMR3[this.mmuMode])) page &= 7;
     pdr = this.mmuPDR[this.mmuMode][page];
-    physicalAddress = ((this.mmuPAR[this.mmuMode][page] << 6) + (virtualAddress & 0x1fff)) & this.mmuMask;
+    addr = ((this.mmuPAR[this.mmuMode][page] << 6) + (addrVirtual & 0x1fff)) & this.mmuMask;
 
-    if (this.nDisableTraps) return physicalAddress;
+    if (addr >= BusPDP11.UNIBUS_22BIT) {
+        addr = this.mapUnibus(addr);
+    }
+
+    if (this.nDisableTraps) return addr;
 
     /*
-     * This next bit is the weirdness that Paul mentions in the function description above:
-     *
-     *      As an aside it turns out that it is the memory management unit that does odd address and
-     *      non-existent memory trapping: who knew? :-) I thought these would have been handled at access time.
-     *
-     * TEST #122 ("KT BEND") in the "EKBEE1" diagnostic (PC 076060) triggers an ODDADDR error using this
-     * instruction:
-     *
-     *      076356: 005037 140001          CLR   @#140001
-     *
-     * and it expects that instruction to generate a BUS error rather than an MMU error, so we deal with that
-     * next.  However, the test also claims to check for an NEXM (non-existent memory) error, using this
-     * instruction:
+     * TEST #122 ("KT BEND") in the "EKBEE1" diagnostic (PC 076060) triggers a NOMEMORY error
+     * using this instruction:
      *
      *      076170: 005037 140100          CLR   @#140100
      *
-     * but that error never materializes, so I've NOT included any NEXM checks yet.  I assume that any such
-     * checks would be limited to whatever's recorded in the Memory Size registers (177760), because actually
-     * checking every physical address at this stage -- even in a real MMU -- seems prohibitively expensive.
+     * It also triggers an ODDADDR error using this instruction:
      *
-     * TODO: Investigate why the test's NEXM error doesn't occur.
+     *      076356: 005037 140001          CLR   @#140001
+     *
+     * These tests exercise the MMU checks that Paul mentions in the function description above.
      */
-    if ((physicalAddress & 0x1) && !(access & PDP11.ACCESS.BYTE)) {
+    if (addr >= this.addrInvalid && addr < this.addrIOPage) {
+        this.regErr |= PDP11.CPUERR.NOMEMORY;
+        this.trap(PDP11.TRAP.BUS, 0, addr);
+    }
+    else if ((addr & 0x1) && !(access & PDP11.ACCESS.BYTE)) {
         this.regErr |= PDP11.CPUERR.ODDADDR;
-        this.trap(PDP11.TRAP.BUS, 0, physicalAddress);
+        this.trap(PDP11.TRAP.BUS, 0, addr);
     }
 
     var newMMR0 = 0;
@@ -1679,12 +1677,12 @@ CPUStatePDP11.prototype.mapVirtualToPhysical = function(virtualAddress, access)
          */
         if (pdr & PDP11.PDR.ED) {
             if (pdr & PDP11.PDR.PLF) {
-                if ((virtualAddress & 0x1FC0) < ((pdr >> 2) & 0x1FC0)) {
+                if ((addrVirtual & 0x1FC0) < ((pdr >> 2) & 0x1FC0)) {
                     newMMR0 |= PDP11.MMR0.ABORT_PL;
                 }
             }
         } else {
-            if ((virtualAddress & 0x1FC0) > ((pdr >> 2) & 0x1FC0)) {
+            if ((addrVirtual & 0x1FC0) > ((pdr >> 2) & 0x1FC0)) {
                 newMMR0 |= PDP11.MMR0.ABORT_PL;
             }
         }
@@ -1695,7 +1693,7 @@ CPUStatePDP11.prototype.mapVirtualToPhysical = function(virtualAddress, access)
      */
 
     this.mmuPDR[this.mmuMode][page] = pdr;
-    if (physicalAddress != ((BusPDP11.IOPAGE_22BIT | PDP11.UNIBUS.MMR0) & this.mmuMask) || this.mmuMode) {
+    if (addr != ((BusPDP11.IOPAGE_22BIT | PDP11.UNIBUS.MMR0) & this.mmuMask) || this.mmuMode) {
         this.mmuLastMode = this.mmuMode;
         this.mmuLastPage = page;
     }
@@ -1721,8 +1719,8 @@ CPUStatePDP11.prototype.mapVirtualToPhysical = function(virtualAddress, access)
             /*
              * TODO: Review the code below, because the address range seems over-inclusive.
              */
-            if (physicalAddress < ((BusPDP11.IOPAGE_22BIT | PDP11.UNIBUS.SIPDR0) & this.mmuMask) ||
-                physicalAddress > ((BusPDP11.IOPAGE_22BIT | PDP11.UNIBUS.UDPAR7 | 0x1) & this.mmuMask)) {
+            if (addr < ((BusPDP11.IOPAGE_22BIT | PDP11.UNIBUS.SIPDR0) & this.mmuMask) ||
+                addr > ((BusPDP11.IOPAGE_22BIT | PDP11.UNIBUS.UDPAR7 | 0x1) & this.mmuMask)) {
                 this.regMMR0 |= PDP11.MMR0.TRAP_MMU;
                 if (this.regMMR0 & PDP11.MMR0.MMU_TRAPS) {
                     this.opFlags |= PDP11.OPFLAG.TRAP_MMU;
@@ -1730,32 +1728,32 @@ CPUStatePDP11.prototype.mapVirtualToPhysical = function(virtualAddress, access)
             }
         }
     }
-    return physicalAddress;
+    return addr;
 };
 
 /**
- * readByteFromPhysical(physicalAddress)
+ * readByteFromPhysical(addr)
  *
  * @this {CPUStatePDP11}
- * @param {number} physicalAddress
+ * @param {number} addr
  * @return {number}
  */
-CPUStatePDP11.prototype.readByteFromPhysical = function(physicalAddress)
+CPUStatePDP11.prototype.readByteFromPhysical = function(addr)
 {
-    return this.bus.getByte(physicalAddress);
+    return this.bus.getByte(addr);
 };
 
 /**
- * writeByteToPhysical(physicalAddress, data)
+ * writeByteToPhysical(addr, data)
  *
  * @this {CPUStatePDP11}
- * @param {number} physicalAddress
+ * @param {number} addr
  * @param {number} data
  */
-CPUStatePDP11.prototype.writeByteToPhysical = function(physicalAddress, data)
+CPUStatePDP11.prototype.writeByteToPhysical = function(addr, data)
 {
-    if (physicalAddress & 1) this.nStepCycles--;
-    this.bus.setByte(physicalAddress, data);
+    if (addr & 1) this.nStepCycles--;
+    this.bus.setByte(addr, data);
 };
 
 /**
@@ -1780,11 +1778,11 @@ CPUStatePDP11.prototype.popWord = function()
  */
 CPUStatePDP11.prototype.pushWord = function(data, fRed)
 {
-    var virtualAddress = (this.regsGen[6] - 2) & 0xffff;
-    this.regsGen[6] = virtualAddress;           // BSD needs SP updated before any fault :-(
-    this.lastOp = (this.lastOp & 0xffff) | ((this.lastOp & ~0xffff) << 8) | (0x00f6 << 16);
-    if (!fRed) this.checkStackLimit(PDP11.ACCESS.WRITE_WORD, -2, virtualAddress);
-    this.writeWord(virtualAddress, data);
+    var addrVirtual = (this.regsGen[6] - 2) & 0xffff;
+    this.regsGen[6] = addrVirtual;              // BSD needs SP updated before any fault :-(
+    this.opLast = (this.opLast & 0xffff) | ((this.opLast & ~0xffff) << 8) | (0x00f6 << 16);
+    if (!fRed) this.checkStackLimit(PDP11.ACCESS.WRITE_WORD, -2, addrVirtual);
+    this.writeWord(addrVirtual, data);
 };
 
 /**
@@ -1835,7 +1833,7 @@ CPUStatePDP11.prototype.pushWord = function(data, fRed)
  */
 CPUStatePDP11.prototype.getAddrByMode = function(mode, reg, access)
 {
-    var virtualAddress, step;
+    var addrVirtual, step;
     var addrDSpace = (access & PDP11.ACCESS.VIRT)? 0 : this.addrDSpace;
 
     /*
@@ -1868,10 +1866,10 @@ CPUStatePDP11.prototype.getAddrByMode = function(mode, reg, access)
      */
     case 2:
         step = 2;
-        virtualAddress = this.regsGen[reg];
-        if (reg == 6) this.checkStackLimit(access, step, virtualAddress);
+        addrVirtual = this.regsGen[reg];
+        if (reg == 6) this.checkStackLimit(access, step, addrVirtual);
         if (reg != 7) {
-            virtualAddress |= addrDSpace;
+            addrVirtual |= addrDSpace;
             if (reg < 6 && (access & PDP11.ACCESS.BYTE)) step = 1;
         }
         this.nStepCycles -= (2 + 1);
@@ -1882,10 +1880,10 @@ CPUStatePDP11.prototype.getAddrByMode = function(mode, reg, access)
      */
     case 3:
         step = 2;
-        virtualAddress = this.regsGen[reg];
-        if (reg != 7) virtualAddress |= addrDSpace;
-        virtualAddress = this.readWord(virtualAddress);
-        virtualAddress |= addrDSpace;
+        addrVirtual = this.regsGen[reg];
+        if (reg != 7) addrVirtual |= addrDSpace;
+        addrVirtual = this.readWord(addrVirtual);
+        addrVirtual |= addrDSpace;
         this.nStepCycles -= (5 + 2);
         break;
 
@@ -1895,9 +1893,9 @@ CPUStatePDP11.prototype.getAddrByMode = function(mode, reg, access)
     case 4:
         step = -2;
         if (reg < 6 && (access & PDP11.ACCESS.BYTE)) step = -1;
-        virtualAddress = (this.regsGen[reg] + step) & 0xffff;
-        if (reg == 6) this.checkStackLimit(access, step, virtualAddress);
-        if (reg != 7) virtualAddress |= addrDSpace;
+        addrVirtual = (this.regsGen[reg] + step) & 0xffff;
+        if (reg == 6) this.checkStackLimit(access, step, addrVirtual);
+        if (reg != 7) addrVirtual |= addrDSpace;
         this.nStepCycles -= (3 + 1);
         break;
 
@@ -1906,9 +1904,9 @@ CPUStatePDP11.prototype.getAddrByMode = function(mode, reg, access)
      */
     case 5:
         step = -2;
-        virtualAddress = (this.regsGen[reg] - 2) & 0xffff;
-        if (reg != 7) virtualAddress |= addrDSpace;
-        virtualAddress = this.readWord(virtualAddress) | addrDSpace;
+        addrVirtual = (this.regsGen[reg] - 2) & 0xffff;
+        if (reg != 7) addrVirtual |= addrDSpace;
+        addrVirtual = this.readWord(addrVirtual) | addrDSpace;
         this.nStepCycles -= (6 + 2);
         break;
 
@@ -1916,27 +1914,27 @@ CPUStatePDP11.prototype.getAddrByMode = function(mode, reg, access)
      * Mode 6: d(R)
      */
     case 6:
-        virtualAddress = this.readWord(this.advancePC(2));
-        virtualAddress = (virtualAddress + this.regsGen[reg]) & 0xffff;
-        if (reg == 6) this.checkStackLimit(access, 0, virtualAddress);
+        addrVirtual = this.readWord(this.advancePC(2));
+        addrVirtual = (addrVirtual + this.regsGen[reg]) & 0xffff;
+        if (reg == 6) this.checkStackLimit(access, 0, addrVirtual);
         this.nStepCycles -= (4 + 2);
-        return virtualAddress | addrDSpace;
+        return addrVirtual | addrDSpace;
 
     /*
      * Mode 7: @d(R)
      */
     case 7:
-        virtualAddress = this.readWord(this.advancePC(2));
-        virtualAddress = (virtualAddress + this.regsGen[reg]) & 0xffff;
-        virtualAddress = this.readWord(virtualAddress | this.addrDSpace);
+        addrVirtual = this.readWord(this.advancePC(2));
+        addrVirtual = (addrVirtual + this.regsGen[reg]) & 0xffff;
+        addrVirtual = this.readWord(addrVirtual | this.addrDSpace);
         this.nStepCycles -= (7 + 3);
-        return virtualAddress | addrDSpace;
+        return addrVirtual | addrDSpace;
     }
 
     this.regsGen[reg] = (this.regsGen[reg] + step) & 0xffff;
-    this.lastOp = (this.lastOp & 0xffff) | ((this.lastOp & ~0xffff) << 8) | ((((step << 3) & 0xf8) | reg) << 16);
+    this.opLast = (this.opLast & 0xffff) | ((this.opLast & ~0xffff) << 8) | ((((step << 3) & 0xf8) | reg) << 16);
 
-    return virtualAddress;
+    return addrVirtual;
 };
 
 /**
@@ -2127,59 +2125,59 @@ CPUStatePDP11.prototype.getVirtualAddrByMode = function(mode, reg, access)
 };
 
 /**
- * readWordFromPhysical(physicalAddress)
+ * readWordFromPhysical(addr)
  *
  * This is a handler set up by setMemoryAccess().  All calls should go through readWord().
  *
  * @this {CPUStatePDP11}
- * @param {number} physicalAddress
+ * @param {number} addr
  * @return {number}
  */
-CPUStatePDP11.prototype.readWordFromPhysical = function(physicalAddress)
+CPUStatePDP11.prototype.readWordFromPhysical = function(addr)
 {
-    return this.bus.getWord(this.lastAddr = physicalAddress);
+    return this.bus.getWord(this.addrLast = addr);
 };
 
 /**
- * readWordFromVirtual(virtualAddress)
+ * readWordFromVirtual(addrVirtual)
  *
  * This is a handler set up by setMemoryAccess().  All calls should go through readWord().
  *
  * @this {CPUStatePDP11}
- * @param {number} virtualAddress (input address is 17 bit (I&D))
+ * @param {number} addrVirtual (input address is 17 bit (I&D))
  * @return {number}
  */
-CPUStatePDP11.prototype.readWordFromVirtual = function(virtualAddress)
+CPUStatePDP11.prototype.readWordFromVirtual = function(addrVirtual)
 {
-    return this.bus.getWord(this.lastAddr = this.mapVirtualToPhysical(virtualAddress, PDP11.ACCESS.READ_WORD));
+    return this.bus.getWord(this.addrLast = this.mapVirtualToPhysical(addrVirtual, PDP11.ACCESS.READ_WORD));
 };
 
 /**
- * writeWordToPhysical(physicalAddress, data)
+ * writeWordToPhysical(addr, data)
  *
  * This is a handler set up by setMemoryAccess().  All calls should go through writeWord().
  *
  * @this {CPUStatePDP11}
- * @param {number} physicalAddress
+ * @param {number} addr
  * @param {number} data
  */
-CPUStatePDP11.prototype.writeWordToPhysical = function(physicalAddress, data)
+CPUStatePDP11.prototype.writeWordToPhysical = function(addr, data)
 {
-    this.bus.setWord(this.lastAddr = physicalAddress, data & 0xffff);
+    this.bus.setWord(this.addrLast = addr, data & 0xffff);
 };
 
 /**
- * writeWordToVirtual(virtualAddress, data)
+ * writeWordToVirtual(addrVirtual, data)
  *
  * This is a handler set up by setMemoryAccess().  All calls should go through writeWord().
  *
  * @this {CPUStatePDP11}
- * @param {number} virtualAddress (input address is 17 bit (I&D))
+ * @param {number} addrVirtual (input address is 17 bit (I&D))
  * @param {number} data
  */
-CPUStatePDP11.prototype.writeWordToVirtual = function(virtualAddress, data)
+CPUStatePDP11.prototype.writeWordToVirtual = function(addrVirtual, data)
 {
-    this.bus.setWord(this.lastAddr = this.mapVirtualToPhysical(virtualAddress, PDP11.ACCESS.WRITE_WORD), data);
+    this.bus.setWord(this.addrLast = this.mapVirtualToPhysical(addrVirtual, PDP11.ACCESS.WRITE_WORD), data);
 };
 
 /**
@@ -2223,7 +2221,7 @@ CPUStatePDP11.prototype.readWordFromPrevSpace = function(opCode, access)
  */
 CPUStatePDP11.prototype.writeWordToPrevSpace = function(opCode, access, data)
 {
-    this.lastOp = (this.lastOp & 0xffff) | (0x0016 << 16);
+    this.opLast = (this.opLast & 0xffff) | (0x0016 << 16);
     var reg = this.dstReg = opCode & PDP11.OPREG.MASK;
     var mode = this.dstMode = (opCode & PDP11.OPMODE.MASK) >> PDP11.OPMODE.SHIFT;
     if (!mode) {
diff --git a/modules/pdp11/lib/rl11.js b/modules/pdp11/lib/rl11.js
index bf10d5aef..0f702314f 100644
--- a/modules/pdp11/lib/rl11.js
+++ b/modules/pdp11/lib/rl11.js
@@ -956,6 +956,10 @@ RL11.prototype.processCommand = function()
         }
         addr = (((this.ber & PDP11.RL11.RLBE.MASK)) << 16) | this.bar;   // 22 bit mode
         nWords = (0x10000 - this.mpr) & 0xffff;
+        if (DEBUG && this.messageEnabled(MessagesPDP11.READ)) {
+            var pos = ((((iCylinder << 1) + iHead) * drive.nSectors) + iSector) * 128;
+            this.printMessage((fnReadWrite == this.readData? "readData" : "writeData") + "(pos=" + pos + ",addr=" + str.toOct(addr) + ",bytes=" + (nWords * 2) + ")", true, true);
+        }
         fInterrupt = fnReadWrite.call(this, drive, iCylinder, iHead, iSector, nWords, addr, this.endReadWrite.bind(this));
         break;
 
@@ -1140,9 +1144,7 @@ RL11.prototype.readRLCS = function(addr)
 RL11.prototype.writeRLCS = function(data, addr)
 {
     this.csr = (this.csr & ~PDP11.RL11.RLCS.WMASK) | (data & PDP11.RL11.RLCS.WMASK);
-
-    this.bae = (this.bae & ~0x3) | ((data & PDP11.RL11.RLCS.BAE) >> 4);
-
+    this.ber = (this.ber & 0x3C) | ((data & PDP11.RL11.RLCS.BAE) >> PDP11.RL11.RLCS.SHIFT.BAE);
     if (!(this.csr & PDP11.RL11.RLCS.CRDY)) this.processCommand();
 };
 
@@ -1233,6 +1235,12 @@ RL11.prototype.readRLBE = function(addr)
 /**
  * writeRLBE(data, addr)
  *
+ * Curiously, we see RSTS/E v7.0 writing RLBE bits that aren't documented:
+ *
+ *      R0=000000 R1=000000 R2=174410 R3=000000 R4=102076 R5=045166
+ *      SP=052662 PC=067624 PS=034344 IR=000000 SL=000377 T0 N0 Z1 V0 C0
+ *      067624: 012712 000300          MOV   #300,@R2
+ *
  * @this {RL11}
  * @param {number} data
  * @param {number} addr (eg, PDP11.UNIBUS.RLBE or 174410)
@@ -1240,6 +1248,7 @@ RL11.prototype.readRLBE = function(addr)
 RL11.prototype.writeRLBE = function(data, addr)
 {
     this.ber = data & PDP11.RL11.RLBE.MASK;
+    this.csr = (this.csr & ~PDP11.RL11.RLCS.BAE) | ((this.ber & 0x3) << PDP11.RL11.RLCS.SHIFT.BAE);
 };
 
 /*
diff --git a/versions/pdpjs/1.30.5/pdp11-dbg.js b/versions/pdpjs/1.30.5/pdp11-dbg.js
index 318286920..fca97732c 100644
--- a/versions/pdpjs/1.30.5/pdp11-dbg.js
+++ b/versions/pdpjs/1.30.5/pdp11-dbg.js
@@ -32,324 +32,325 @@
  http://pcjs.org/modules/pdp11/lib/computer.js (C) Jeff Parsons 2012-2016
  http://pcjs.org/modules/shared/lib/state.js (C) Jeff Parsons 2012-2016
 */
-for(var k,aa="function"==typeof Object.defineProperties?Object.defineProperty:function(a,b,c){if(c.get||c.set)throw new TypeError("ES3 does not support getters and setters.");a!=Array.prototype&&a!=Object.prototype&&(a[b]=c.value)},ba="undefined"!=typeof window&&window===this?this:"undefined"!=typeof global?global:this,ca=["Math","log2"],da=0;da<ca.length-1;da++){var fa=ca[da];fa in ba||(ba[fa]={});ba=ba[fa]}var ga=ca[ca.length-1],ha=ba[ga],ia=ha?ha:function(a){return Math.log(a)/Math.LN2};
+for(var k,aa="function"==typeof Object.defineProperties?Object.defineProperty:function(a,b,c){if(c.get||c.set)throw new TypeError("ES3 does not support getters and setters.");a!=Array.prototype&&a!=Object.prototype&&(a[b]=c.value)},ba="undefined"!=typeof window&&window===this?this:"undefined"!=typeof global?global:this,ca=["Math","log2"],da=0;da<ca.length-1;da++){var ea=ca[da];ea in ba||(ba[ea]={});ba=ba[ea]}var ga=ca[ca.length-1],ha=ba[ga],ia=ha?ha:function(a){return Math.log(a)/Math.LN2};
 ia!=ha&&null!=ia&&aa(ba,ga,{configurable:!0,writable:!0,value:ia});
-var ja={163840:[40,1,8,,254],184320:[40,1,9,,252],327680:[40,2,8,,255],368640:[40,2,9,,253],737280:[80,2,9,,249],1228800:[80,2,15,,249],1474560:[80,2,18,,240],2949120:[80,2,36,,240],21368320:[615,4,17],2494464:[203,2,12,512],5242880:[256,2,40,256],10485760:[512,2,40,256]},la={If:0,Zc:1,Kf:2,Lf:3,Mf:4,Nf:5,Of:6,Pf:7,Ac:8,Qf:9,$c:10,Rf:11,Sf:12,ad:13,Tf:14,Uf:15,Vf:16,Wf:17,Xf:18,Yf:19,Zf:20,$f:21,ag:22,bg:23,cg:24,dg:25,eg:26," ":32,"!":33,'"':34,"#":35,$:36,"%":37,"&":38,"'":39,"(":40,")":41,"*":42,
-"+":43,",":44,"-":45,".":46,"/":47,0:48,1:49,2:50,3:51,4:52,5:53,6:54,7:55,8:56,9:57,":":58,";":59,"<":60,"=":61,">":62,"?":63,"@":64,zc:65,Hf:66,Jf:67,fg:68,E:69,gg:70,hg:71,ig:72,jg:73,kg:74,lg:75,mg:76,ng:77,og:78,pg:79,qg:80,Q:81,rg:82,sg:83,tg:84,ug:85,vg:86,wg:87,xg:88,yg:89,md:90,"[":91,"\\":92,"]":93,"^":94,_:95,"`":96,zg:97,Ag:98,Bg:99,d:100,e:101,Cg:102,Dg:103,Eg:104,Fg:105,Ig:106,k:107,Jg:108,Kg:109,n:110,Lg:111,p:112,q:113,r:114,Mg:115,t:116,Og:117,Pg:118,Qg:119,x:120,y:121,z:122,"{":123,
-"|":124,"}":125,"~":126,bd:127};
+var ja={163840:[40,1,8,,254],184320:[40,1,9,,252],327680:[40,2,8,,255],368640:[40,2,9,,253],737280:[80,2,9,,249],1228800:[80,2,15,,249],1474560:[80,2,18,,240],2949120:[80,2,36,,240],21368320:[615,4,17],2494464:[203,2,12,512],5242880:[256,2,40,256],10485760:[512,2,40,256]},la={Ef:0,Uc:1,Gf:2,Hf:3,If:4,Jf:5,Kf:6,Lf:7,wc:8,Mf:9,Vc:10,Nf:11,Of:12,Wc:13,Pf:14,Qf:15,Rf:16,Sf:17,Tf:18,Uf:19,Vf:20,Wf:21,Xf:22,Yf:23,Zf:24,$f:25,ag:26," ":32,"!":33,'"':34,"#":35,$:36,"%":37,"&":38,"'":39,"(":40,")":41,"*":42,
+"+":43,",":44,"-":45,".":46,"/":47,0:48,1:49,2:50,3:51,4:52,5:53,6:54,7:55,8:56,9:57,":":58,";":59,"<":60,"=":61,">":62,"?":63,"@":64,vc:65,Df:66,Ff:67,bg:68,E:69,cg:70,dg:71,eg:72,fg:73,gg:74,hg:75,ig:76,jg:77,kg:78,lg:79,mg:80,Q:81,ng:82,og:83,pg:84,qg:85,rg:86,sg:87,tg:88,ug:89,gd:90,"[":91,"\\":92,"]":93,"^":94,_:95,"`":96,vg:97,wg:98,xg:99,d:100,e:101,yg:102,zg:103,Ag:104,Bg:105,Eg:106,k:107,Fg:108,Gg:109,n:110,Hg:111,p:112,q:113,r:114,Ig:115,t:116,Kg:117,Lg:118,Mg:119,x:120,y:121,z:122,"{":123,
+"|":124,"}":125,"~":126,Xc:127};
 function ma(a,b){var c;if(a){b||(b=10);var d=a.charAt(0),e=0<a.indexOf(",");e&&(a=a.replace(/,/g,""));"#"==d?(b=8,d=null):"$"==d&&(b=16,d=null);null==d?a=a.substr(1):("0"==d&&(d=a.charAt(1),"b"==d&&e&&(b=2,d=null),"o"==d?(b=8,d=null):"x"==d&&(b=16,d=null)),null==d?a=a.substr(2):(d=a.charAt(a.length-1).toLowerCase(),"y"==d?(b=2,d=null):"."==d?(b=10,d=null):"h"==d&&(b=16,d=null),null==d&&(a=a.substr(0,a.length-1))));var f,d=a;((e=b)&&10!=e?16==e?d.match(/^[0-9a-f]+$/i):8==e?d.match(/^[0-7]+$/):2==e&&
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-A&63)switch(A=C&7,C&56){case 0:y=Hi(A);break;case 8:y="@"+Hi(A);break;case 16:7>A?y="("+Hi(A)+")+":(C=v.ta(t,2),y="#"+L(v,C,0,!0));break;case 24:7>A?y="@("+Hi(A)+")+":(C=v.ta(t,2),y="@#"+L(v,C,0,!0));break;case 32:y="-("+Hi(A)+")";break;case 40:y="@-("+Hi(A)+")";break;case 48:C=v.ta(t,2);y=L(v,C,0,!0)+"("+Hi(A)+")";7==A&&(y=L(v,C+t.G&65535));break;case 56:C=v.ta(t,2),y="@"+L(v,C)+"("+Hi(A)+")",7==A&&(y="@"+L(v,C+t.G&65535))}v=y;if(!v||!v.length){h="INVALID";break}"string"!=typeof v&&(m=v[1],v=v[0]);
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-function Z(a,b){var c="",d=a.b;if(8>b)c=Hi(b),c+="="+L(a,d.u[b]);else if(13>b)c="A"+(b-8)+"="+L(a,d.cb[b-8]);else if(16<=b&&20>b)c="S"+(b-16)+"="+L(a,d.Oa[b-16]);else switch(b){case 20:c="PS="+L(a,dd(d));break;case 21:c="IR="+L(a,d.Mb);break;case 22:c="ER="+L(a,d.Ba);break;case 23:c="SL="+L(a,d.lb);break;case 24:c="MMR0="+L(a,Qc(d));break;case 25:c="MMR1="+L(a,$c(d));break;case 26:c="MMR2="+L(a,ad(d));break;case 27:c="MMR3="+L(a,d.Xa);break;case 28:a.w&&(c="AR="+L(a,a.w.Aa,3));break;case 29:a.w&&
-(c="DR="+L(a,a.w.Bb));break;case 30:a.w&&nc(a.w)&&(c="SR="+L(a,a.w.bb,3))}c&&(c+=" ");return c}function Si(a,b){var c,d="";for(c=0;6>c;c++)d+=Z(a,c);d=d+"\n"+(Z(a,6)+Z(a,7));d+=Z(a,20)+Z(a,21)+Z(a,23);d+=Ri(a,"T")+Ri(a,"N")+Ri(a,"Z")+Ri(a,"V")+Ri(a,"C");b&&(b=d,c=""+(Z(a,24)+Z(a,25)),c+=Z(a,26)+Z(a,27)+Z(a,22),c=c+"\n"+(Z(a,30)+Z(a,28)+Z(a,29)),d=b+("\n"+c));return d}k.Kc=function(a,b){return a[0]>b[0]?1:a[0]<b[0]?-1:0};
-function Pg(a,b,c,d,e){var f=[],g;for(g in e){var h=e[g];"number"==typeof h&&(e[g]=h={o:h});var l=h.o,m=h.a;if(void 0!==l){var n=f,l=[l>>>0,g],r=Aa(n,l,a.Kc);0>r&&n.splice(-(r+1),0,l)}m&&(h.a=m.replace(/''/g,'"'))}a.J.push({Ng:b,G:c,Bd:d,ja:e,Ic:f})}function Ti(a,b,c){var d=[],e=a.da(b)>>>0;for(b=0;b<a.J.length;b++){var f=a.J[b],g=f.G>>>0,h=f.Bd;if(e>=g&&e<g+h){e=Aa(f.Ic,[e-g],a.Kc);0<=e?Ui(a,b,e,d):c&&(e=~e,Ui(a,b,e-1,d),Ui(a,b,e,d));break}}return d}
-function Ui(a,b,c,d){var e={},f=a.J[b].Ic,g=0,h=null;0<=c&&c<f.length&&(g=f[c][0],h=f[c][1]);h&&(e=a.J[b].ja[h],h="."==h.charAt(0)?null:e.l||h);d.push(h);d.push(g);d.push(e.a);d.push(e.c)}function Vi(a,b){var c=b.match(/^\s*([A-Z_]?[A-Z0-9_]*)\s*(=?)\s*(.*)$/i);if(c){if(!c[1])return ri(a)||a.i("no variables"),!0;if(!c[2])return ri(a,c[1]);if(!c[3])return delete a.fa[c[1]],!0;b=ni(a,c[3]);return void 0!==b?(a.fa[c[1]]=b,!0):!1}a.i("invalid assignment:"+b);return!1}
-function Wi(a,b,c){var d=null;if(b=Ci(a,b,!0)){a.da(b);var e=Ti(a,b,!0);if(e.length){var f,g;e[0]&&(g="",(f=b.G-e[1])&&(g=" + "+q(f)),f=e[0]+" ("+L(a,e[1])+")"+g,c&&a.i(f),d=f);4<e.length&&e[4]&&(g="",(f=e[5]-b.G)&&(g=" - "+q(f)),f=e[4]+" ("+L(a,e[5])+")"+g,c&&a.i(f),d||(d=f))}else c&&a.i("no symbols")}return d}
-function Ji(a,b){var c;if(b&&"?"==b[1])a.i("register commands:"),a.i("\tr\tdump registers"),a.i("\trm\tdump misc registers"),a.i("\trx [#]\tset flag or register x to [#]");else{var d=!1,e=a.b;null==c&&(c=!0);if(b&&1<b.length){var f=b[1];if("m"==f)d=!0;else{var g=f.indexOf("=");if(0<g)b=f.substr(g+1),f=f.substr(0,g);else if(2<b.length)b=b[2];else{a.i("missing value for "+b[1]);return}g=ni(a,b);if(void 0===g)return;b=f.toUpperCase();switch(b){case "SP":case "R6":e.u[6]=g&65535;break;case "PC":case "R7":T(e,
-g);a.L=Y(e.u[7]);break;case "N":e.aa=g?32768:0;break;case "Z":e.ca=g?0:1;break;case "V":e.W=g?32768:0;break;case "C":e.V=g?65536:0;break;case "PS":ed(e,g);break;case "IR":cd(e,g);break;case "ER":e.Ba=g;d=!0;break;case "SL":e.lb=g|255;break;case "MMR0":Zc(e,g);d=!0;break;case "MMR3":bd(e,g);d=!0;break;case "AR":a.w&&(d=a.w,Yb(d,d.Aa=g));d=!0;break;case "DR":a.w&&(d=a.w,Xb(d,d.Bb=g));d=!0;break;case "SR":if(a.w&&nc(a.w)){Zb(a.w,g);d=!0;break}default:if("R"==b.charAt(0)&&(b=+b.charAt(1),0<=b&&6>b)){e.u[b]=
-g&65535;break}a.i("unknown register: "+f);return}a.B.xa();a.i("updated registers:")}}a.i(Si(a,d));c&&(a.L=Y(e.u[7]),Ki(a,L(a,a.L.G)))}}function Xi(a,b){b=ya(b);var c=b.match(/^(['"])(.*?)\1$/);c?1<c[2].length?a.i(c[2]):qi(a,null,c[2].charCodeAt(0)):ni(a,b,!0)}
-function Yi(a,b,c){if("?"==c)a.i("trace commands:"),a.i("\tt  [#]\ttrace # instructions"),a.i("\ttr [#]\ttrace # instructions with register updates"),a.i("\ttc [#]\ttrace # cycles"),a.i("note: bn [#] breaks after # instructions without updates");else{var d="t"!=b;c=pi(a,c,null,!0)||1;var e=1==c?0:1;"tc"==b&&(e=c,c=1);a.vb=b;Oa(c,function(){return pb(a,!0)&&a.pb(e,d,!1)},function(){a.w&&a.w.stop&&a.w.stop();a.B.xa(-1);pb(a,!1)})}}
-function Ki(a,b,c,d){if(b=Ci(a,b,!0)){void 0===d&&(d=1);var e=256;if(void 0!==c)if("l"==c.charAt(0))c=pi(a,c.substr(1)),null!=c&&(d=c);else{d=Ci(a,c,!0);if(!d||d.G<b.G)return;e=d.G-b.G;if(256<e){a.i("range too large");return}d=-1}c=0;for(var f;0<e&&d--;){f=qb(a,!1)||a.S?a.K:null;var g=null!=f?"cycles":null,h=Ti(a,b),l=b.G;if(h[0]&&d&&(!c&&d||0>h[0].indexOf("+"))){var m=h[0]+":";h[2]&&(m+=" "+h[2]);a.i(m)}h[3]&&(g=h[3],f=null);f=Qi(a,b,g,f);a.i(f);a.L=b;e-=b.G-l;c++}}}
-function Pi(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.i(">> "+b):(a.U&&(a.i("ended assemble at "+L(a,a.T.G)),a.L=a.T,a.U=!1),b="");var e=b.charAt(0);if('"'==e||"'"==e)return!0;a.sa=null;if(yb(a)&&0<b.length){a.U&&(b="a "+L(a,a.T.G)+" "+b);var f=!1,g=b.replace(/ +/g," ").split(" ");g[0]=g[0].toLowerCase();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}}switch(g[0].charAt(0)){case "a":var r=
-Ci(a,g[1],!0);if(r)if(a.T=r,void 0===g[2])a.i("begin assemble at "+L(a,r.G)),a.U=!0,a.B.xa();else{var t;a.i("not supported yet");t=[];if(t.length){for(var v=0;v<t.length;v++)a.Nb(r,t[v],1);a.i(Qi(a,a.T))}}break;case "b":a:{var A=g[0],y=g[1],C=b;if("?"==y)a.i("breakpoint commands:"),a.i("\tbp [#]\tset exec breakpoint at addr #"),a.i("\tbr [#]\tset read breakpoint at addr #"),a.i("\tbw [#]\tset write breakpoint at addr #"),a.i("\tbc [#]\tclear breakpoint at addr #"),a.i("\tbl\tlist all breakpoints"),
-a.i("\tbn [#]\tbreak after # instruction(s)");else{var ra=A.charAt(1);if("l"==ra){var Sa;Sa=0+Oi(a,a.f);Sa+=Oi(a,a.O);(Sa+=Oi(a,a.F))||a.i("no breakpoints")}else if("n"==ra)a.Ca=pi(a,y),a.i("break after "+a.Ca+" instruction(s)");else if(void 0===y)a.i("missing breakpoint address");else{var R=Y();if("*"!=y&&(R=Ci(a,y,!0),!R))break a;"c"==ra?null==R.G?(ti(a),a.i("all breakpoints cleared")):Mi(a,a.f,R)||Mi(a,a.O,R)||Mi(a,a.F,R)||a.i("breakpoint missing: "+L(a,R.G)):null!=R.G&&(Gi(a,R,C),"p"==ra?a.wb(a.f,
-R):"r"==ra?a.wb(a.O,R):"w"==ra?a.wb(a.F,R):a.i("unknown breakpoint command: "+ra))}}}break;case "c":a.Za&&(a.Za.value="");break;case "d":a:{var rb,Ua=g[0],ua=g[1],Va=g[2],qj=g[3];if("?"==ua){var sb="";for(rb in Db)a.Pa[rb]&&(sb&&(sb+=","),sb+=rb);sb+=",state,symbols";a.i("dump memory commands:");a.i("\tdb [a] [n]    dump n bytes at address a");a.i("\tdw [a] [n]    dump n words at address a");a.i("\tdd [a] [n]    dump n dwords at address a");a.i("\tds [a] [n]    dump n words at address a as JSON");
-a.i("\tdh [p] [n]    dump n instructions from history position p");sb.length&&a.i("dump extension commands:\n\t"+sb)}else if("state"==ua){var $g=Zi(a.B,!0);"console"==Va?console.log($g):(a.Za&&(a.Za.value=""),a.i($g))}else if("symbols"==ua)for(var $d=0;$d<a.J.length;$d++){var ae=a.J[$d],tb;for(tb in ae.ja)if("."!=tb.charAt(0)){var ah=ae.ja[tb].o;if(void 0!==ah){var bh=ae.ja[tb].l;bh&&(tb=bh);a.i(L(a,ah)+" "+tb)}}}else{if("d"==Ua){for(rb in Db)if(g[1]==rb){var ch=a.Pa[rb];ch?(g.shift(),g.shift(),ch(g)):
-a.i("no dump registered for "+ua);break a}ua||(Ua=a.Tb||"dw")}else a.Tb=Ua;if("dh"==Ua){var dh=ua,eh=Va,fh="",gh=0,ka=a.ga,va=a.H;if(va.length){var ea=+dh||a.tb,ac=+eh||10;isNaN(ea)?ea=ac:fh="more ";ea>va.length&&(a.i("note: only "+va.length+" available"),ea=va.length);ka-=ea;0>ka&&(null==va[va.length-1].G?(ea=ka+ea,ka=0):ka+=va.length);var be=[];"call"==eh&&(ac=1E5,be=["CALL"]);for(void 0!==dh&&a.i(ea+" instructions earlier:");0<ac&&ka!=a.ga;){var hh=va[ka++];if(null==hh.G)break;var bc=Y(hh.G),rj=
-ea--,ih=Qi(a,bc,"history",rj);(!be.length||0<=ih.indexOf(be[0]))&&a.i(ih);bc.oc&&(ka+=bc.oc,ac-=bc.oc,ea-=bc.oc);ka>=va.length&&(ka=0);a.tb=ea;gh++;ac--}}gh||(a.i("no "+fh+"history available"),a.tb=void 0)}else{var ub=Ci(a,ua);if(ub){var cc=0,ce=!1,de="ds"==Ua;Va&&(ce=!0,"l"==Va.charAt(0)&&(ce=!1,Va=Va.substr(1)||qj),cc=pi(a,Va)>>>0,65536<cc&&(cc=65536));for(var vb="dd"==Ua?4:"db"==Ua?1:2,Rc=(ce?cc-ub.G:vb*cc)||128,ee=de?16:a.oa,sj=(Rc+ee-1)/ee|0||1,Wa="";sj--&&0<Rc;){for(var Xa="",fe="",ua=L(a,ub.G),
-Sc=ee,dc=0,ec=0;0<Sc&&0<Rc;){var wb=1,Tc=1==vb?a.dc(ub,wb):a.ta(ub,wb=2),dc=dc|Tc<<(ec<<3),ec=ec+wb;ec==vb&&(de?(Xa&&(Xa+=","),Xa+="0x"+p(dc,2*vb)):(Xa+=L(a,dc,vb),Xa+=1==vb?9==Sc?"-":" ":"  "),dc=ec=0);Sc-=wb;for(Rc-=wb;wb--;)var ge=Tc&255,fe=fe+(32<=ge&&128>ge?String.fromCharCode(ge):"."),Tc=Tc>>8}Wa&&(Wa+="\n");Wa=de?Wa+(Xa+","):Wa+(ua+"  "+Xa+(0==Sc?" "+fe:""))}Wa&&a.i(Wa);a.qb=ub}}}}break;case "e":if("else"==g[0])break;var xb,he,ie,je,ke=g[0],le=g[1];"eb"==ke?(xb=1,he=255,ie=a.dc,je=a.Nb):"e"==
-ke||"ew"==ke?(xb=2,he=65535,ie=a.ta,je=a.Db):le=null;if(null==le)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 Uc=Ci(a,le);if(Uc)for(var Vc=2;Vc<g.length;Vc++){var fc=ni(a,g[Vc]);if(void 0===fc){a.i("unrecognized value: "+g[Vc]);break}fc&~he&&a.i("warning: "+p(fc)+" exceeds "+xb+"-byte value");a.i("changing "+L(a,Uc.G)+(I(a,16)?"":" from "+L(a,ie.call(a,Uc),xb))+" to "+L(a,fc,xb));je.call(a,Uc,fc,xb)}}break;case "g":a:{var jh=
-g[1],tj=b;if(void 0!==jh){var me=Ci(a,jh,!0);if(!me)break a;Gi(a,me,tj);a.wb(a.f,me,!0)}a.ob(!0,c)}break;case "h":a.C.X?(c||a.i("halting"),a.ea()):qb(a,!0)||c||a.i("already halted");break;case "i":if("if"==g[0]){var ne;var gc=b.substr(2),gc=ya(gc);ni(a,gc)?(c||a.i("true: "+gc),ne=!0):(c||a.i("false: "+gc),ne=!1);ne||(d=!1);break}f=!0;break;case "k":var uj=g[0];if("?"==g[1])a.i("stack trace commands:"),a.i("\tk\tshow frame addresses"),a.i("\tks\tshow symbol information");else{var oe=0,pe=Y(),hc=Y(a.b.u[6]);
-for(a.i("stack trace for "+L(a,hc.G));10>oe;){for(var Ya=null,vj=256;65536>hc.G>>>0;){pe.G=a.ta(hc,2);if(null==hc.G||!vj--)break;if(!(pe.G&1)){for(var wj=a,Wc=pe,kh=null,ic=Wc.G,lh=ic,qe=1;6>=qe&&ic;qe++){if(2<qe){Wc.G=ic;var Xc=Qi(wj,Wc);if(0<=Xc.indexOf("JSR")){var mh=Xc.indexOf(" ");if(ic+(Xc.indexOf(" ",mh+1)-mh-1)/2==lh){kh=Xc;break}}}ic-=2}Wc.G=lh;if(Ya=kh)break}}if(!Ya||null==Ya)break;var nh=null;if("ks"==uj){var oh=Ya.match(/[0-9A-F]+$/);oh&&(nh=Wi(a,oh[0]))}Ya=ta(Ya,50)+"  ;"+(nh||"stack="+
-L(a,hc.G));a.i(Ya);oe++}oe||a.i("no return addresses found")}break;case "l":if("ln"==g[0]){Wi(a,g[1],!0);break}f=!0;break;case "m":a:{var wa,xa=null,H=g[1];"?"==H&&(H=void 0);if(void 0!==H){var La=0;if("all"==H)La=1879046143,H=null;else if("on"==H)xa=!0,H=null;else if("off"==H)xa=!1,H=null;else{"keys"==H&&(H="key");"kbd"==H&&(H="keyboard");for(wa in Db)if(H==wa){La=Db[wa];xa=!!(a.pa&La);break}if(!La){a.i("unknown message category: "+H);break a}}if(La)if("on"==g[2])a.pa|=La,xa=!0;else if("off"==g[2]&&
-(a.pa&=~La,xa=!1,1073741824==La)){for(var ph=1E3<=a.ba.length?a.ba.length-1E3:0;ph<a.ba.length;)a.i(a.ba[ph++]);a.ba=[]}}var xj=0,jc="";for(wa in Db)if(!H||H==wa){var yj=!!(a.pa&Db[wa]);if(null===xa||xa==yj)jc&&(jc+=","),++xj%10||(jc+="\n\t"),"key"==wa&&(wa="keys"),jc+=wa}void 0===H&&a.i("message commands:\n\tm [category] [on|off]\tturn categories on/off");a.i((null!==xa?xa?"messages on:  ":"messages off: ":"message categories:\n\t")+(jc||"none"));ui(a)}break;case "p":if("print"==g[0]){Xi(a,b.substr(5));
-break}var zj=g[0];if("?"==g[1])a.i("step commands:"),a.i("\tp\tstep over instruction"),a.i("\tpr\tstep over instruction with register update");else{var qh="pr"==zj?1:0,rh=1+qh;if(a.S)a.i("step in progress");else{var Yc=Y(a.b.u[7]),kc=a.ta(Yc);3==kc||4==kc||34816==(kc&65280)||35072==(kc&65280)?(a.S=rh,Di(Yc,2)):2048==(kc&65024)&&(Qi(a,Yc),a.S=rh);a.S?(a.wb(a.f,Yc,!0),a.ob()||(a.B&&a.B.mb(),a.S=0)):Yi(a,qh?"tr":"t")}}break;case "r":if("reset"==b){a.B&&a.B.reset();break}Ji(a,g);break;case "s":a:switch(g[1]){case "base":if(g[2]){var lc=
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+function Ni(a,b){if(void 0!==b)vd(a,b,1,a.f,!0),a.R=0;else for(b=1;b<a.f.length;b++){var c=a.f[b];if(c.Ua){if(!Oi(a,a.f,c,!0))break;b=0}}}
+function vd(a,b,c,d,e){var f=!1;if(!a.ab++)for(var g=1;!f&&g<d.length;g++){var h=d[g];if(!e||h.Ua)for(var l=a.da(h)&65535,m=0;m<c;m++)if(b+m==l){var n,f=!0;h.Ua&&(Oi(a,d,h,!0),e=!0);if(n=h.jd){for(var f=!1,r=0;r<n.length;r++)if(!Ri(a,n[r],!0)){if(n[r].indexOf("if")){f=!0;break}for(var t=r+1;t<n.length&&n[t].indexOf("else");t++)r++;if(t==n.length){f=!0;break}}a.b.C.X||(f=!0)}if(f){e||Pi(a,d,g,"hit");break}}}a.ab--;return f}
+function Si(a,b,c,d){var e=Y(b.H),f=a.va(b,2),g,h;for(h in a.ub)if(g=a.ub[h][f&h])break;g||(g=Ci);var l=g[0];0<=a.Qb.indexOf(l)&&(g=Ci,l=g[0]);var m=h="",n=zi[l],r=g.length-1;l||r||(h=L(a,f));for(l=1;l<=r;l++){var t=g[l];if(void 0!==t){var v;v=a;var A=t,t=b,y="",C=A&61440;if(4096==C)t=t.H+((f&255)<<24>>23)&65535,y=L(v,t);else if(8192==C)t=t.H-((f&63)<<1)&65535,y=L(v,t);else if(12288==C)y=L(v,f&7,1);else if(24576==C)y=L(v,f&63,1);else if(32768==C)y=L(v,f&255,1);else if(C=f&A,A&4032&&(C>>=6,A>>=6),
+A&63)switch(A=C&7,C&56){case 0:y=Ji(A);break;case 8:y="@"+Ji(A);break;case 16:7>A?y="("+Ji(A)+")+":(C=v.va(t,2),y="#"+L(v,C,0,!0));break;case 24:7>A?y="@("+Ji(A)+")+":(C=v.va(t,2),y="@#"+L(v,C,0,!0));break;case 32:y="-("+Ji(A)+")";break;case 40:y="@-("+Ji(A)+")";break;case 48:C=v.va(t,2);y=L(v,C,0,!0)+"("+Ji(A)+")";7==A&&(y=L(v,C+t.H&65535));break;case 56:C=v.va(t,2),y="@"+L(v,C)+"("+Ji(A)+")",7==A&&(y="@"+L(v,C+t.H&65535))}v=y;if(!v||!v.length){h="INVALID";break}"string"!=typeof v&&(m=v[1],v=v[0]);
+0<h.length&&(h+=",");h+=v||"???"}}f="";g=L(a,e.H)+":";if(-1!==e.H&&-1!==b.H){do if(f+=" "+L(a,a.va(e,2)),null==e.H)break;while(e.H!=b.H)}g+=ta(f,24);g+=ta(n,5);h&&(g+=" "+h);if(c||m)g=ta(g,60)+";"+(c||""),g=a.b.C.Fb?g+("cycles="+Fd(a.b).toString()+" cs="+p(a.b.Vb)):g+(null!=d?"="+d.toString():""),m&&(g+=" @"+m);return g}function Ti(a,b){switch(b){case "N":a=Sd(a.b);break;case "Z":a=Rd(a.b);break;case "V":a=Qd(a.b);break;case "C":a=Pd(a.b);break;default:a=0}return b.charAt(0)+(a?"1":"0")+" "}
+function Z(a,b){var c="",d=a.b;if(8>b)c=Ji(b),c+="="+L(a,d.u[b]);else if(13>b)c="A"+(b-8)+"="+L(a,d.gb[b-8]);else if(16<=b&&20>b)c="S"+(b-16)+"="+L(a,d.Oa[b-16]);else switch(b){case 20:c="PS="+L(a,fd(d));break;case 21:c="IR="+L(a,d.Mb);break;case 22:c="ER="+L(a,d.sa);break;case 23:c="SL="+L(a,d.ob);break;case 24:c="MMR0="+L(a,$c(d));break;case 25:c="MMR1="+L(a,bd(d));break;case 26:c="MMR2="+L(a,cd(d));break;case 27:c="MMR3="+L(a,d.Ya);break;case 28:a.w&&(c="AR="+L(a,a.w.Ba,3));break;case 29:a.w&&
+(c="DR="+L(a,a.w.Bb));break;case 30:a.w&&nc(a.w)&&(c="SR="+L(a,a.w.fb,3))}c&&(c+=" ");return c}function Ui(a,b){var c,d="";for(c=0;6>c;c++)d+=Z(a,c);d=d+"\n"+(Z(a,6)+Z(a,7));d+=Z(a,20)+Z(a,21)+Z(a,23);d+=Ti(a,"T")+Ti(a,"N")+Ti(a,"Z")+Ti(a,"V")+Ti(a,"C");b&&(b=d,c=""+(Z(a,24)+Z(a,25)),c+=Z(a,26)+Z(a,27)+Z(a,22),c=c+"\n"+(Z(a,30)+Z(a,28)+Z(a,29)),d=b+("\n"+c));return d}k.Fc=function(a,b){return a[0]>b[0]?1:a[0]<b[0]?-1:0};
+function Rg(a,b,c,d,e){var f=[],g;for(g in e){var h=e[g];"number"==typeof h&&(e[g]=h={o:h});var l=h.o,m=h.a;if(void 0!==l){var n=f,l=[l>>>0,g],r=Aa(n,l,a.Fc);0>r&&n.splice(-(r+1),0,l)}m&&(h.a=m.replace(/''/g,'"'))}a.I.push({Jg:b,H:c,xd:d,ja:e,Dc:f})}function Vi(a,b,c){var d=[],e=a.da(b)>>>0;for(b=0;b<a.I.length;b++){var f=a.I[b],g=f.H>>>0,h=f.xd;if(e>=g&&e<g+h){e=Aa(f.Dc,[e-g],a.Fc);0<=e?Wi(a,b,e,d):c&&(e=~e,Wi(a,b,e-1,d),Wi(a,b,e,d));break}}return d}
+function Wi(a,b,c,d){var e={},f=a.I[b].Dc,g=0,h=null;0<=c&&c<f.length&&(g=f[c][0],h=f[c][1]);h&&(e=a.I[b].ja[h],h="."==h.charAt(0)?null:e.l||h);d.push(h);d.push(g);d.push(e.a);d.push(e.c)}function Xi(a,b){var c=b.match(/^\s*([A-Z_]?[A-Z0-9_]*)\s*(=?)\s*(.*)$/i);if(c){if(!c[1])return ti(a)||a.i("no variables"),!0;if(!c[2])return ti(a,c[1]);if(!c[3])return delete a.fa[c[1]],!0;b=pi(a,c[3]);return void 0!==b?(a.fa[c[1]]=b,!0):!1}a.i("invalid assignment:"+b);return!1}
+function Yi(a,b,c){var d=null;if(b=Ei(a,b,!0)){a.da(b);var e=Vi(a,b,!0);if(e.length){var f,g;e[0]&&(g="",(f=b.H-e[1])&&(g=" + "+q(f)),f=e[0]+" ("+L(a,e[1])+")"+g,c&&a.i(f),d=f);4<e.length&&e[4]&&(g="",(f=e[5]-b.H)&&(g=" - "+q(f)),f=e[4]+" ("+L(a,e[5])+")"+g,c&&a.i(f),d||(d=f))}else c&&a.i("no symbols")}return d}
+function Li(a,b){var c;if(b&&"?"==b[1])a.i("register commands:"),a.i("\tr\tdump registers"),a.i("\trm\tdump misc registers"),a.i("\trx [#]\tset flag or register x to [#]");else{var d=!1,e=a.b;null==c&&(c=!0);if(b&&1<b.length){var f=b[1];if("m"==f)d=!0;else{var g=f.indexOf("=");if(0<g)b=f.substr(g+1),f=f.substr(0,g);else if(2<b.length)b=b[2];else{a.i("missing value for "+b[1]);return}g=pi(a,b);if(void 0===g)return;b=f.toUpperCase();switch(b){case "SP":case "R6":e.u[6]=g&65535;break;case "PC":case "R7":T(e,
+g);a.L=Y(e.u[7]);break;case "N":e.Z=g?32768:0;break;case "Z":e.ca=g?0:1;break;case "V":e.W=g?32768:0;break;case "C":e.V=g?65536:0;break;case "PS":gd(e,g);break;case "IR":ed(e,g);break;case "ER":e.sa=g;d=!0;break;case "SL":e.ob=g|255;break;case "MMR0":ad(e,g);d=!0;break;case "MMR3":dd(e,g);d=!0;break;case "AR":a.w&&(d=a.w,Yb(d,d.Ba=g));d=!0;break;case "DR":a.w&&(d=a.w,Xb(d,d.Bb=g));d=!0;break;case "SR":if(a.w&&nc(a.w)){Zb(a.w,g);d=!0;break}default:if("R"==b.charAt(0)&&(b=+b.charAt(1),0<=b&&6>b)){e.u[b]=
+g&65535;break}a.i("unknown register: "+f);return}a.B.ya();a.i("updated registers:")}}a.i(Ui(a,d));c&&(a.L=Y(e.u[7]),Mi(a,L(a,a.L.H)))}}function Zi(a,b){b=ua(b);var c=b.match(/^(['"])(.*?)\1$/);c?1<c[2].length?a.i(c[2]):si(a,null,c[2].charCodeAt(0)):pi(a,b,!0)}
+function $i(a,b,c){if("?"==c)a.i("trace commands:"),a.i("\tt  [#]\ttrace # instructions"),a.i("\ttr [#]\ttrace # instructions with register updates"),a.i("\ttc [#]\ttrace # cycles"),a.i("note: bn [#] breaks after # instructions without updates");else{var d="t"!=b;c=ri(a,c,null,!0)||1;var e=1==c?0:1;"tc"==b&&(e=c,c=1);a.vb=b;Oa(c,function(){return pb(a,!0)&&a.sb(e,d,!1)},function(){a.w&&a.w.stop&&a.w.stop();a.B.ya(-1);pb(a,!1)})}}
+function Mi(a,b,c,d){if(b=Ei(a,b,!0)){void 0===d&&(d=1);var e=256;if(void 0!==c)if("l"==c.charAt(0))c=ri(a,c.substr(1)),null!=c&&(d=c);else{d=Ei(a,c,!0);if(!d||d.H<b.H)return;e=d.H-b.H;if(256<e){a.i("range too large");return}d=-1}c=0;for(var f;0<e&&d--;){f=qb(a,!1)||a.R?a.K:null;var g=null!=f?"cycles":null,h=Vi(a,b),l=b.H;if(h[0]&&d&&(!c&&d||0>h[0].indexOf("+"))){var m=h[0]+":";h[2]&&(m+=" "+h[2]);a.i(m)}h[3]&&(g=h[3],f=null);f=Si(a,b,g,f);a.i(f);a.L=b;e-=b.H-l;c++}}}
+function Ri(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.i(">> "+b):(a.U&&(a.i("ended assemble at "+L(a,a.T.H)),a.L=a.T,a.U=!1),b="");var e=b.charAt(0);if('"'==e||"'"==e)return!0;a.ua=null;if(yb(a)&&0<b.length){a.U&&(b="a "+L(a,a.T.H)+" "+b);var f=!1,g=b.replace(/ +/g," ").split(" ");g[0]=g[0].toLowerCase();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}}switch(g[0].charAt(0)){case "a":var r=
+Ei(a,g[1],!0);if(r)if(a.T=r,void 0===g[2])a.i("begin assemble at "+L(a,r.H)),a.U=!0,a.B.ya();else{var t;a.i("not supported yet");t=[];if(t.length){for(var v=0;v<t.length;v++)a.Nb(r,t[v],1);a.i(Si(a,a.T))}}break;case "b":a:{var A=g[0],y=g[1],C=b;if("?"==y)a.i("breakpoint commands:"),a.i("\tbp [#]\tset exec breakpoint at addr #"),a.i("\tbr [#]\tset read breakpoint at addr #"),a.i("\tbw [#]\tset write breakpoint at addr #"),a.i("\tbc [#]\tclear breakpoint at addr #"),a.i("\tbl\tlist all breakpoints"),
+a.i("\tbn [#]\tbreak after # instruction(s)");else{var sa=A.charAt(1);if("l"==sa){var Sa;Sa=0+Qi(a,a.f);Sa+=Qi(a,a.N);(Sa+=Qi(a,a.F))||a.i("no breakpoints")}else if("n"==sa)a.Ca=ri(a,y),a.i("break after "+a.Ca+" instruction(s)");else if(void 0===y)a.i("missing breakpoint address");else{var R=Y();if("*"!=y&&(R=Ei(a,y,!0),!R))break a;"c"==sa?null==R.H?(vi(a),a.i("all breakpoints cleared")):Oi(a,a.f,R)||Oi(a,a.N,R)||Oi(a,a.F,R)||a.i("breakpoint missing: "+L(a,R.H)):null!=R.H&&(Ii(a,R,C),"p"==sa?a.wb(a.f,
+R):"r"==sa?a.wb(a.N,R):"w"==sa?a.wb(a.F,R):a.i("unknown breakpoint command: "+sa))}}}break;case "c":a.bb&&(a.bb.value="");break;case "d":a:{var rb,Ua=g[0],va=g[1],Va=g[2],sj=g[3];if("?"==va){var sb="";for(rb in Db)a.Pa[rb]&&(sb&&(sb+=","),sb+=rb);sb+=",state,symbols";a.i("dump memory commands:");a.i("\tdb [a] [n]    dump n bytes at address a");a.i("\tdw [a] [n]    dump n words at address a");a.i("\tdd [a] [n]    dump n dwords at address a");a.i("\tds [a] [n]    dump n words at address a as JSON");
+a.i("\tdh [p] [n]    dump n instructions from history position p");sb.length&&a.i("dump extension commands:\n\t"+sb)}else if("state"==va){var bh=aj(a.B,!0);"console"==Va?console.log(bh):(a.bb&&(a.bb.value=""),a.i(bh))}else if("symbols"==va)for(var ae=0;ae<a.I.length;ae++){var be=a.I[ae],tb;for(tb in be.ja)if("."!=tb.charAt(0)){var ch=be.ja[tb].o;if(void 0!==ch){var dh=be.ja[tb].l;dh&&(tb=dh);a.i(L(a,ch)+" "+tb)}}}else{if("d"==Ua){for(rb in Db)if(g[1]==rb){var eh=a.Pa[rb];eh?(g.shift(),g.shift(),eh(g)):
+a.i("no dump registered for "+va);break a}va||(Ua=a.Tb||"dw")}else a.Tb=Ua;if("dh"==Ua){var fh=va,gh=Va,hh="",ih=0,ka=a.ga,wa=a.G;if(wa.length){var fa=+fh||a.tb,ac=+gh||10;isNaN(fa)?fa=ac:hh="more ";fa>wa.length&&(a.i("note: only "+wa.length+" available"),fa=wa.length);ka-=fa;0>ka&&(null==wa[wa.length-1].H?(fa=ka+fa,ka=0):ka+=wa.length);var ce=[];"call"==gh&&(ac=1E5,ce=["CALL"]);for(void 0!==fh&&a.i(fa+" instructions earlier:");0<ac&&ka!=a.ga;){var jh=wa[ka++];if(null==jh.H)break;var bc=Y(jh.H),tj=
+fa--,kh=Si(a,bc,"history",tj);(!ce.length||0<=kh.indexOf(ce[0]))&&a.i(kh);bc.oc&&(ka+=bc.oc,ac-=bc.oc,fa-=bc.oc);ka>=wa.length&&(ka=0);a.tb=fa;ih++;ac--}}ih||(a.i("no "+hh+"history available"),a.tb=void 0)}else{var ub=Ei(a,va);if(ub){var cc=0,de=!1,ee="ds"==Ua;Va&&(de=!0,"l"==Va.charAt(0)&&(de=!1,Va=Va.substr(1)||sj),cc=ri(a,Va)>>>0,65536<cc&&(cc=65536));for(var vb="dd"==Ua?4:"db"==Ua?1:2,Sc=(de?cc-ub.H:vb*cc)||128,fe=ee?16:a.na,uj=(Sc+fe-1)/fe|0||1,Wa="";uj--&&0<Sc;){for(var Xa="",ge="",va=L(a,ub.H),
+Tc=fe,dc=0,ec=0;0<Tc&&0<Sc;){var wb=1,Uc=1==vb?a.dc(ub,wb):a.va(ub,wb=2),dc=dc|Uc<<(ec<<3),ec=ec+wb;ec==vb&&(ee?(Xa&&(Xa+=","),Xa+="0x"+p(dc,2*vb)):(Xa+=L(a,dc,vb),Xa+=1==vb?9==Tc?"-":" ":"  "),dc=ec=0);Tc-=wb;for(Sc-=wb;wb--;)var he=Uc&255,ge=ge+(32<=he&&128>he?String.fromCharCode(he):"."),Uc=Uc>>8}Wa&&(Wa+="\n");Wa=ee?Wa+(Xa+","):Wa+(va+"  "+Xa+(0==Tc?" "+ge:""))}Wa&&a.i(Wa);a.Za=ub}}}}break;case "e":if("else"==g[0])break;var xb,ie,je,ke,le=g[0],me=g[1];"eb"==le?(xb=1,ie=255,je=a.dc,ke=a.Nb):"e"==
+le||"ew"==le?(xb=2,ie=65535,je=a.va,ke=a.Db):me=null;if(null==me)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 Vc=Ei(a,me);if(Vc)for(var Wc=2;Wc<g.length;Wc++){var fc=pi(a,g[Wc]);if(void 0===fc){a.i("unrecognized value: "+g[Wc]);break}fc&~ie&&a.i("warning: "+p(fc)+" exceeds "+xb+"-byte value");a.i("changing "+L(a,Vc.H)+(I(a,16)?"":" from "+L(a,je.call(a,Vc),xb))+" to "+L(a,fc,xb));ke.call(a,Vc,fc,xb)}}break;case "g":a:{var lh=
+g[1],vj=b;if(void 0!==lh){var ne=Ei(a,lh,!0);if(!ne)break a;Ii(a,ne,vj);a.wb(a.f,ne,!0)}a.rb(!0,c)}break;case "h":a.C.X?(c||a.i("halting"),a.ea()):qb(a,!0)||c||a.i("already halted");break;case "i":if("if"==g[0]){var oe;var gc=b.substr(2),gc=ua(gc);pi(a,gc)?(c||a.i("true: "+gc),oe=!0):(c||a.i("false: "+gc),oe=!1);oe||(d=!1);break}f=!0;break;case "k":var wj=g[0];if("?"==g[1])a.i("stack trace commands:"),a.i("\tk\tshow frame addresses"),a.i("\tks\tshow symbol information");else{var pe=0,qe=Y(),hc=Y(a.b.u[6]);
+for(a.i("stack trace for "+L(a,hc.H));10>pe;){for(var Ya=null,xj=256;65536>hc.H>>>0;){qe.H=a.va(hc,2);if(null==hc.H||!xj--)break;if(!(qe.H&1)){for(var yj=a,Xc=qe,mh=null,ic=Xc.H,nh=ic,re=1;6>=re&&ic;re++){if(2<re){Xc.H=ic;var Yc=Si(yj,Xc);if(0<=Yc.indexOf("JSR")){var oh=Yc.indexOf(" ");if(ic+(Yc.indexOf(" ",oh+1)-oh-1)/2==nh){mh=Yc;break}}}ic-=2}Xc.H=nh;if(Ya=mh)break}}if(!Ya||null==Ya)break;var ph=null;if("ks"==wj){var qh=Ya.match(/[0-9A-F]+$/);qh&&(ph=Yi(a,qh[0]))}Ya=ta(Ya,50)+"  ;"+(ph||"stack="+
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