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Switching to new interrupt triggers

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This commit is contained in:
Jeff Parsons 2016-10-12 16:40:47 -07:00 • committed by Jeff Parsons
commit 58d358b51e
7 changed files with 534 additions and 454 deletions
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96
modules/pdp11/lib/bus.js
View file

@ -199,46 +199,34 @@ BusPDP11.IOHANDLER = {
/*
* These are our custom IOController functions for all IOPAGE accesses. They look up the IOPAGE
* offset in the aIOHandlers table, and if an entry exists, they use the appropriate IOHANDLER indexes
* (above) to locate the appropriate read/write handlers.
* (above) to locate the registered read/write handlers. If no handler is found, then unknownAccess()
* is called, triggering a trap -- unless traps are disabled because direct access was requested
* (eg, by the Debugger).
*
* Note that we try to have reasonable fallbacks for byte reads when only word read handlers exist,
* and word reads if only byte handlers exist. Ditto for writes. These fallbacks may not always be
* appropriate; for example, when a byte write falls back to a word write, the address must be read
* first, and depending on the underlying I/O device, that may or may not have side-effects. It's really
* up to the device to know whether that matters, and provide all the necessary handlers if it does.
* Handlers receive the original IOPAGE address that was used, although in most cases, it's ignored,
* because most handlers usually handle only one address. Only handlers used for a range of addresses
* must pay attention to it.
*
* Note that these functions include fallbacks for byte reads when only word read handlers exist (by
* masking or shifting the result) and for word reads if only byte handlers exist (by combining bytes).
* Fallbacks for writes exist, too, but they are slightly more complicated, because a byte write using
* a word write handler requires reading the word first, and then updating the appropriate byte within
* that word.
*
* Those fallbacks may not always be appropriate; for example, byte writes to some device registers
* must be zero-extended to update the entire word. For those cases, the fallback's "preliminary" read
* is issued with a zero address so that the handler can distinguish a normal read from one of these
* preliminary reads, and return an appropriate value for the update (ie, zero).
*
* If none of these fallback behaviors are appropriate, the device has a simple recourse: register
* handlers for all possible addresses and sizes.
*
* Unlike regular Memory blocks, IOPAGE accesses permit word accesses on ODD addresses; that works
* just fine by registering WORD handlers for the appropriate ODD addresses. What is unclear, however,
* is what is exactly supposed to happen when the CPU reads or writes a BYTE from an ODD IOPAGE address;
* it seems clear that our built-in fallbacks are NOT correct in all cases.
* just fine by registering WORD handlers for the appropriate ODD addresses. For BYTE accesses, it
* depends. For CPU register addresses, addIOHandlers() installs special byte handlers that perform
* either a simple word read or write. Other addresses must be handled on case-by-case basis.
*
* For example, let's imagine that only read/write WORD handlers have been registered for ODD address
* 177701 (ie, general register R1, set 0). If a readByte(177701) request is made, we would fallback to
* reading the word at 177700 and returning the high byte, but that would fetch the contents of general
* register R0 instead of R1, which is clearly wrong.
*
* One solution is for the caller to register both BYTE and WORD handlers for ODD addresses, making
* the caller responsible for the defining the correct behavior in all cases. However, that's more work
* for the caller, and we're just punting the problem instead of solving it.
*
* Another solution is for addIOHandlers() to detect the ODD address case, and install custom fallback
* handlers for read and write BYTE accesses. In the above example, the custom read BYTE handler could
* invoke the read WORD handler and mask the result with 0xff, and the custom write BYTE handler could
* first call the read WORD handler, insert the new data into the low byte of the result, and then
* call the write WORD handler.
*
* However, that would produce inconsistent results between EVEN and ODD addresses in the register
* address range (0o177700 through 0o177717), so I'm assuming that the correct solution is to install
* alternate fallback BYTE handlers for ALL addresses in that range. The alternate read BYTE handler will
* mask its result with 0xff, and the alternate write BYTE handler will store the (zero-extended) byte to
* the entire corresponding register.
*
* One of things that gives me pause about this solution is that it differs from the behavior of a MOVB
* instruction when the destination is a general register, because MOVB always sign-extends the source byte
* to a word; it does NOT zero-extend. So it seems to strange to have a different MOVB behavior when the
* destination register is specified using an IOPAGE address. But, maybe that was by design.
*
* TODO: Another small potential improvement would be for addIOHandlers() to predefine fall-backs for all
* TODO: Another small potential improvement would be for addIOHandlers() to install fallbacks for ALL
* missing handlers, in both the ODD and EVEN cases, so there's never a need to check each function index
* before calling it. However, since there's no avoiding checking aIOHandlers[off] (unless we FULLY populate
* the aIOHandlers array), and since these I/O accesses should be pretty infrequent relative to all other
@ -336,6 +324,10 @@ BusPDP11.IOController = {
* If no handler existed, and this address was odd, then perhaps a handler exists for the even address;
* if so, call the readWord() handler first to get the original data, then call writeWord() with the new
* data pre-inserted in (the high byte of) the original data.
*
* WARNING: Whenever we call readWord() under these circumstances, we zero the address parameter,
* so that the handler can distinguish this case. Thus, if we're dealing with a special register
* where a byte write operation modifies the entire register, the handler can simply return zero.
*/
afn = bus.aIOHandlers[off & ~0x1];
if (afn) {
@ -484,7 +476,7 @@ BusPDP11.prototype.setIOPageRange = function(nRange)
/**
* getControllerBuffer(addr)
*
* Our Bus component also acts as custom memory controller, so it must also provide this function.
* Our Bus component also acts as custom memory controller for the IOPAGE, so it must also provide this function.
*
* @this {BusPDP11}
* @param {number} addr
@ -493,7 +485,7 @@ BusPDP11.prototype.setIOPageRange = function(nRange)
BusPDP11.prototype.getControllerBuffer = function(addr)
{
/*
* No buffer is required; all accesses go to a registered I/O handler or the bit-bucket.
* No buffer is required for the IOPAGE; all accesses go to registered I/O handlers or to unknownAccess().
*/
return [null, 0];
};
@ -501,7 +493,7 @@ BusPDP11.prototype.getControllerBuffer = function(addr)
/**
* getControllerAccess()
*
* Our Bus component also acts as custom memory controller, so it must also provide this function.
* Our Bus component also acts as custom memory controller for the IOPAGE, so it must also provide this function.
*
* @this {BusPDP11}
* @return {Array.<function()>}
@ -511,6 +503,17 @@ BusPDP11.prototype.getControllerAccess = function()
return this.afnIOPage;
};
/**
* getWidth()
*
* @this {BusPDP11}
* @return {number}
*/
BusPDP11.prototype.getWidth = function()
{
return this.nBusWidth;
};
/**
* reset()
*
@ -530,9 +533,7 @@ BusPDP11.prototype.reset = function()
* unknownAccess(addr, data, byteFlag)
*
* This is our default I/O handler, called whenever there's an IOPAGE access without a corresponding entry
* in aIOHandlers; in the interim, our Device component will override this default handler with its own function
* by calling addIODefaultHandlers(), until the Device component has been completely rewritten to install I/O
* handlers for all supported I/O addresses.
* in aIOHandlers.
*
* @this {BusPDP11}
* @param {number} addr (ie, an IOPAGE address)
@ -757,17 +758,6 @@ BusPDP11.prototype.scanMemory = function(info, addr, size)
return info;
};
/**
* getWidth()
*
* @this {BusPDP11}
* @return {number}
*/
BusPDP11.prototype.getWidth = function()
{
return this.nBusWidth;
};
/**
* removeMemory(addr, size)
*

219
modules/pdp11/lib/cpustate.js
View file

@ -83,15 +83,37 @@ function CPUStatePDP11(parmsCPU)
Component.subclass(CPUStatePDP11, CPUPDP11);
/*
* Overview of Device Interrupt Support
*
* Originally, the CPU maintained a queue of requested interrupts. Entries in this queue recorded a device's
* priority, vector, and delay (ie, a number of instructions to process before issuing the interrupt). This queue
* would constantly grow and shrink as requests were issued and dispatched, and as long as there was something
* in the queue, the CPU was constantly examining it.
*
* Now we are trying something simpler. First, the CPU offers timer services to any device that wants a callback
* after a specified delay, which are much more efficient than requiring the CPU to dive into an interrupt queue and
* look for (and decrement) delay counts on every instruction.
*
* Second, when a device decides it's time to interrupt (either at the end of some operation or when its delay timer
* has fired), it will simply request the interrupt, and CPU priority permitting, the interrupt will be dispatched.
* If CPU priority is NOT permitting, then the interrupt will remain pending until the priority drops. This means
* that the CPU need not check for any pending interrupts until/unless the CPU priority changes.
*
* All this will be managed with "triggers". Every device that wants to interrupt must register via addTrigger().
* This will add a Trigger object to an array, and each object will contain the (self) assigned vector, the priority,
* the interrupt request status, and a next pointer.
*/
/**
* @typedef {{
* delay: number,
* priority: number,
* vector: number,
* callback: (function()|null|undefined)
* }} InterruptEvent
* priority: number,
* request: number,
* next: (Trigger|null)
* }} Trigger
*/
var InterruptEvent;
var Trigger;
/**
* initProcessor()
@ -101,7 +123,15 @@ var InterruptEvent;
CPUStatePDP11.prototype.initProcessor = function()
{
this.decode = PDP11.op1170.bind(this);
/** @type {Array.<Trigger>} */
this.aTriggers = [];
/** @type {Trigger|null} */
this.triggerNext = null;
this.initRegs();
this.flags.complete = this.flags.debugCheck = false;
};
@ -169,7 +199,7 @@ CPUStatePDP11.prototype.initRegs = function()
this.regMB = 0;
/*
* opFlags contains various triggers that stepCPU() needs to be aware of
* opFlags contains various conditions that stepCPU() needs to be aware of
*/
this.opFlags = 0;
@ -208,8 +238,6 @@ CPUStatePDP11.prototype.resetRegs = function()
this.mmuMask = 0x3ffff;
this.mmuMemorySize = BusPDP11.IOPAGE_18BIT;
/** @type {Array.<InterruptEvent>} */
this.interruptQueue = [];
this.opFlags |= PDP11.OPFLAG.INTQ;
if (this.bus) this.setMemoryAccess();
@ -562,77 +590,131 @@ CPUStatePDP11.prototype.setSP = function(addr)
};
/**
* interrupt(delay, priority, vector, callback)
*
* Interrupts are stored in a queue in delay order with the delay expressed as
* a difference. For example if the delays were 0, 1, 0 then the first entry
* is active and both the second and third are waiting for one more instruction
* execution to become active.
* addTrigger(vector, priority)
*
* @this {CPUStatePDP11}
* @param {number} delay
* @param {number} priority
* @param {number} vector
* @param {function()} [callback]
* @param {number} priority
* @return {Trigger}
*/
CPUStatePDP11.prototype.interrupt = function(delay, priority, vector, callback)
CPUStatePDP11.prototype.addTrigger = function(vector, priority)
{
var i = this.interruptQueue.length;
while (i-- > 0) {
if (this.interruptQueue[i].vector === vector) {
if (i > 0) {
this.interruptQueue[i - 1].delay += this.interruptQueue[i].delay;
}
this.interruptQueue.splice(i, 1);
break;
}
}
if (delay >= 0) {
i = this.interruptQueue.length; // queue in delay 'difference' order
while (i-- > 0) {
if (this.interruptQueue[i].delay > delay) {
this.interruptQueue[i].delay -= delay;
break;
}
delay -= this.interruptQueue[i].delay;
}
/*
* NOTE regarding a Google Closure Compiler "bug": if an InterruptEvent is inserted into the
* interruptQueue with the named properties below, they will never be seen by the rest of the
* code, because the compiler renames all other property references EXCEPT these.
*
* this.interruptQueue.splice(i + 1, 0, {
* "delay": delay,
* "priority": (priority << 5) & 0xe0,
* "vector": vector,
* "callback": callback
* });
*
* Perhaps if the inlined object had been explicitly @typed, that wouldn't have happened, but
* I'm playing it safe now: I've taken the object out-of-line, removed the quoted property names,
* and explicitly typed it. The compiler re-inlines the object with correctly renamed properties.
*/
/** @type {InterruptEvent} */
var interruptEvent = {
delay: delay,
priority: (priority << 5) & 0xe0,
vector: vector,
callback: callback
};
this.interruptQueue.splice(i + 1, 0, interruptEvent);
}
this.opFlags |= PDP11.OPFLAG.INTQ;
var trigger = {vector: vector, priority: priority, request: -1, next: null};
this.aTriggers.push(trigger);
return trigger;
};
/**
* checkInterruptQueue()
* checkTriggers()
*
* @this {CPUStatePDP11}
*/
CPUStatePDP11.prototype.checkInterruptQueue = function()
CPUStatePDP11.prototype.checkTriggers = function()
{
if (this.triggerNext && this.setTrigger(this.triggerNext)) {
this.removeTrigger(this.triggerNext);
}
};
/**
* insertTrigger(trigger)
*
* @this {CPUStatePDP11}
* @param {Trigger} trigger
*/
CPUStatePDP11.prototype.insertTrigger = function(trigger)
{
if (trigger != this.triggerNext) {
var triggerPrev = this.triggerNext;
if (!triggerPrev || triggerPrev.priority <= trigger.priority) {
trigger.next = triggerPrev;
this.triggerNext = trigger;
} else {
do {
var triggerNext = triggerPrev.next;
if (!triggerNext || triggerNext.priority <= trigger.priority) {
trigger.next = triggerNext;
triggerPrev.next = trigger;
break;
}
triggerPrev = triggerNext;
} while (true);
}
}
};
/**
* removeTrigger(trigger)
*
* @this {CPUStatePDP11}
* @param {Trigger} trigger
*/
CPUStatePDP11.prototype.removeTrigger = function(trigger)
{
var triggerPrev = this.triggerNext;
if (triggerPrev == trigger) {
this.triggerNext = trigger.next;
} else {
do {
var triggerNext = triggerPrev.next;
if (triggerNext == trigger) {
triggerPrev.next = triggerNext.next;
break;
}
triggerPrev = triggerNext;
} while (true);
}
};
/**
* setTrigger(trigger)
*
* @this {CPUStatePDP11}
* @param {Trigger|null} trigger
* @return {boolean} (true if interrupt dispatched, false if not)
*/
CPUStatePDP11.prototype.setTrigger = function(trigger)
{
if (!this.dispatchInterrupt(trigger.vector, trigger.priority)) {
this.insertTrigger(trigger);
return false;
}
return true;
};
/**
* dispatchInterrupt(vector, priority)
*
* @this {CPUStatePDP11}
* @param {number} vector
* @param {number} priority
* @return {boolean} (true if dispatched, false if not)
*/
CPUStatePDP11.prototype.dispatchInterrupt = function(vector, priority)
{
var priorityCPU = (this.regPSW & PDP11.PSW.PRI) >> PDP11.PSW.SHIFT.PRI;
if (priority > priorityCPU) {
if (this.opFlags & PDP11.OPFLAG.WAIT) {
this.advancePC(2);
this.opFlags &= ~PDP11.OPFLAG.WAIT;
}
this.trap(vector, PDP11.REASON.INTERRUPT);
return true;
}
return false;
};
/**
* checkInterrupts()
*
* @this {CPUStatePDP11}
*/
CPUStatePDP11.prototype.checkInterrupts = function()
{
if (this.opFlags & PDP11.OPFLAG.INTQ) {
this.opFlags &= ~PDP11.OPFLAG.INTQ;
this.checkTriggers();
/*
var interruptEvent = null;
var savePSW = this.regPIR & 0xe0;
for (var i = this.interruptQueue.length; --i >= 0;) {
@ -666,6 +748,7 @@ CPUStatePDP11.prototype.checkInterruptQueue = function()
this.trap(interruptEvent.vector, PDP11.REASON.INTERRUPT);
}
}
*/
}
else if (this.opFlags & PDP11.OPFLAG.INTQ_SPL) {
/*
@ -735,7 +818,7 @@ CPUStatePDP11.prototype.setPSW = function(newPSW)
this.regsGen[6] = this.regsAltStack[this.mmuMode];
}
/*
* Trigger a call to checkInterruptQueue()
* Trigger a call to checkInterrupts()
*/
this.opFlags |= PDP11.OPFLAG.INTQ;
this.regPSW = newPSW;
@ -1017,7 +1100,7 @@ CPUStatePDP11.prototype.trap = function(vector, reason)
}
}
throw vector;
if (reason != PDP11.REASON.INTERRUPT) throw vector;
};
/**
@ -1891,7 +1974,7 @@ CPUStatePDP11.prototype.stepCPU = function(nMinCycles)
* interrupting the natural flow of instructions whenever the Debugger is stepping through code.
*/
if ((this.opFlags & (PDP11.OPFLAG.INTQ_SPL | PDP11.OPFLAG.INTQ | PDP11.OPFLAG.WAIT)) /*&& nMinCycles*/) {
this.checkInterruptQueue();
this.checkInterrupts();
}
}

8
modules/pdp11/lib/defines.js
View file

@ -506,7 +506,6 @@ var PDP11 = {
PRI: 4,
RVEC: 0o60,
XVEC: 0o64,
DELAY: 40,
RCSR: { // 177560
RE: 0x0001, // Reader Enable (W/O) TODO: Determine if we really need to exclude this write-only bit from RMASK
DTR: 0x0002, // Data Terminal Ready (R/W)
@ -529,7 +528,8 @@ var PDP11 = {
PARITY: 0x1000, // Received Data Parity (R/O)
FE: 0x2000, // Framing Error (R/O)
OE: 0x4000, // Overrun Error (R/O)
ERROR: 0x8000 // Error (R/O)
ERROR: 0x8000, // Error (R/O)
DELAY: 1
},
XCSR: { // 177564
BREAK: 0x0001, // BREAK (R/W)
@ -538,11 +538,11 @@ var PDP11 = {
READY: 0x0080, // Transmitter Ready (R/O)
RMASK: 0x00C5,
WMASK: 0x0045,
DELAY: 8
DELAY: 1
},
XBUF: { // 177566
DATA: 0x00FF, // Transmitted Data (W/O) TODO: Determine why pdp11.js effectively defined this as 0x7F
DELAY: 100
DELAY: 1
}
},
KW11: { // KW11-L Line Time Clock

6
modules/pdp11/lib/device.js
View file

@ -125,10 +125,12 @@ DevicePDP11.prototype.initBus = function(cmp, bus, cpu, dbg)
this.dbg = dbg;
var device = this;
this.kw11.timer = this.cpu.addTimer(function() {
this.kw11.timer = cpu.addTimer(function() {
device.kw11_interrupt();
});
this.kw11.trigger = cpu.addTrigger(PDP11.KW11.VEC, PDP11.KW11.PRI);
bus.addIOTable(this, DevicePDP11.UNIBUS_IOTABLE);
bus.addResetHandler(this.reset.bind(this));
@ -1008,7 +1010,7 @@ DevicePDP11.prototype.kw11_interrupt = function()
{
this.kw11.lks |= PDP11.KW11.LKS.MON;
if (this.kw11.lks & PDP11.KW11.LKS.IE) {
this.cpu.interrupt(PDP11.KW11.DELAY, PDP11.KW11.PRI, PDP11.KW11.VEC);
this.cpu.setTrigger(this.kw11.trigger);
this.cpu.setTimer(this.kw11.timer, 1000/60);
}
};

24
modules/pdp11/lib/serialport.js
View file

@ -260,22 +260,28 @@ SerialPortPDP11.prototype.initBus = function(cmp, bus, cpu, dbg)
var serial = this;
this.timerReceiveData = this.cpu.addTimer(function() {
this.triggerReceiveInterrupt = this.cpu.addTrigger(PDP11.DL11.RVEC, PDP11.DL11.PRI);
this.timerReceiveInterrupt = this.cpu.addTimer(function() {
if (!(serial.rcsr & PDP11.DL11.RCSR.RD)) {
if (serial.abReceive.length) {
serial.rbuf = serial.abReceive.shift();
serial.rcsr |= PDP11.DL11.RCSR.RD;
if (serial.rcsr & PDP11.DL11.RCSR.RIE) {
serial.cpu.interrupt(PDP11.DL11.DELAY, PDP11.DL11.PRI, PDP11.DL11.RVEC);
serial.cpu.setTrigger(serial.triggerReceiveInterrupt);
}
}
}
});
this.doneTransmitInterrupt = function() {
this.triggerTransmitInterrupt = this.cpu.addTrigger(PDP11.DL11.XVEC, PDP11.DL11.PRI);
this.timerTransmitInterrupt = this.cpu.addTimer(function() {
serial.xcsr |= PDP11.DL11.XCSR.READY;
return !!(serial.xcsr & PDP11.DL11.XCSR.TIE);
};
if (serial.xcsr & PDP11.DL11.XCSR.TIE) {
serial.cpu.setTrigger(serial.triggerTransmitInterrupt);
}
});
bus.addIOTable(this, SerialPortPDP11.UNIBUS_IOTABLE);
this.setReady();
@ -465,7 +471,7 @@ SerialPortPDP11.prototype.receiveData = function(data)
else {
this.abReceive = this.abReceive.concat(data);
}
this.cpu.setTimer(this.timerReceiveData, 50);
this.cpu.setTimer(this.timerReceiveInterrupt, PDP11.DL11.RBUF.DELAY);
return true; // for now, return true regardless, since we're buffering everything anyway
};
@ -568,7 +574,7 @@ SerialPortPDP11.prototype.readRBUF = function(addr)
{
this.rcsr &= ~PDP11.DL11.RCSR.RD;
if (this.abReceive.length > 0) {
this.cpu.setTimer(this.timerReceiveData, 50);
this.cpu.setTimer(this.timerReceiveInterrupt, PDP11.DL11.RBUF.DELAY);
}
return this.rbuf;
};
@ -609,7 +615,7 @@ SerialPortPDP11.prototype.writeXCSR = function(data, addr)
* If the device is READY, and IE is transitioning on, then request an interrupt.
*/
if ((this.xcsr & (PDP11.DL11.XCSR.READY | PDP11.DL11.XCSR.TIE)) == PDP11.DL11.XCSR.READY && (data & PDP11.DL11.XCSR.TIE)) {
this.cpu.interrupt(PDP11.DL11.XCSR.DELAY, PDP11.DL11.PRI, PDP11.DL11.XVEC, this.doneTransmitInterrupt);
this.cpu.setTimer(this.timerTransmitInterrupt, PDP11.DL11.XCSR.DELAY);
}
this.xcsr = (this.xcsr & ~PDP11.DL11.XCSR.WMASK) | (data & PDP11.DL11.XCSR.WMASK);
};
@ -639,7 +645,7 @@ SerialPortPDP11.prototype.writeXBUF = function(data, addr)
if (data) {
this.transmitByte(data);
this.xcsr &= ~PDP11.DL11.XCSR.READY;
this.cpu.interrupt(PDP11.DL11.XBUF.DELAY, PDP11.DL11.PRI, PDP11.DL11.XVEC, this.doneTransmitInterrupt);
this.cpu.setTimer(this.timerTransmitInterrupt, PDP11.DL11.XBUF.DELAY);
}
};

385
versions/pdpjs/1.30.1/pdp11-dbg.js
View file

@ -692,211 +692,210 @@ typeof b){var m="",p;for(p in b)b.hasOwnProperty(p)&&(m&&(m+="&"),m+=p+"="+encod
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h.Dd=function(a){if(a&=255){B(this,"transmitByte("+k(a,2,!0)+")");this.K&&this.K.call(this.I,a);if(this.B)if(13==a)this.H=0;else if(8==a)this.B.value=this.B.value.slice(0,-1),0<this.H&&this.H--;else{var b;b=(b=pa[a])?"<"+b+">":String.fromCharCode(a);var c=b.length;32>a&&1==c&&(c=0);9==a&&(a=this.U||8,c=a-this.H%a,this.U&&(b=na("",c)));this.M&&!this.H&&c&&(b=String.fromCharCode(this.M)+b);this.B.value+=b;this.B.scrollTop=this.B.scrollHeight;this.H+=c}else if(null!=this.G){if(10==a||1024<=this.G.length)this.g(this.G),
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var oe=[0,14,14,17,14,18,16,20];function pe(a){var b=this.b,c=Dd(this,a);a=a>>6&7;ud(this,this.u[a]);this.u[a]=this.u[7];pd(this,c);this.b=b-oe[this.i]}var qe=[3,9,9,13,10,14,12,16,4,9,9,13,10,14,13,17],re=[7,13,13,17,14,18,17,21];function se(a){var b=Fd(this,a);a=a>>6&7;b&32768&&(b|=-65536);var c=this.u[a];c&32768&&(c|=-65536);b=~~(b*c);this.u[a]=b>>16&65535;this.u[a|1]=b&65535;this.F&128||(this.S=b>>16,this.X=this.S|b,this.P=0,this.O=-32768>b||32767<b?65536:0);this.b-=23}
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[te,function(){this.O=65536;this.b-=5},function(){this.P=32768;this.b-=5},T,function(){this.X=0;this.b-=5},T,T,T,function(){this.S=32768;this.b-=5},T,T,T,T,T,T,T],Se=[se,se,le,le,je,je,ke,ke,we,we,V,V,V,V,ue,ue],Te=[function(a){R(this,a,!this.Aa())},function(a){R(this,a,this.Aa())},function(a){R(this,a,!ld(this)&&!nd(this))},function(a){R(this,a,ld(this)||nd(this))},function(a){R(this,a,!md(this))},function(a){R(this,a,md(this))},function(a){R(this,a,!ld(this))},function(a){R(this,a,ld(this))},function(){this.$(24,
2);this.b-=25},function(){this.$(28,5);this.b-=5},function(a){bf[a>>6&3].call(this,a)},function(a){cf[a>>6&3].call(this,a)},function(a){df[a>>6&3].call(this,a)},function(a){ef[a>>6&3].call(this,a)},V,V],bf=[function(a){qd(this,Gd(this,a,0));this.b-=this.i?9:3+(7==this.f?2:0)},function(a){P(this,a,0,Vd);this.b-=this.i?9:3+(7==this.f?2:0)},function(a){P(this,a,1,Zd);this.b-=this.i?9:3+(7==this.f?2:0)},function(a){P(this,a,1,Xd);this.b-=this.i?9:3+(7==this.f?2:0)}],cf=[function(a){P(this,a,0,ae);this.b-=
this.i?11:6},function(a){P(this,a,ld(this)?1:0,Ld);this.b-=this.i?9:3+(7==this.f?2:0)},function(a){P(this,a,ld(this)?1:0,ge);this.b-=this.i?9:3+(7==this.f?2:0)},function(a){a=Ed(this,a);qd(this,a<<8);this.b-=this.i?4:3+(7==this.f?2:0)}],df=[function(a){P(this,a,0,ee);this.b-=this.i?9+(this.Ta&1):3+(7==this.f?2:0)},function(a){P(this,a,0,ce);this.b-=this.i?9:3+(7==this.f?2:0)},function(a){P(this,a,0,Pd);this.b-=this.i?9+(this.Ta&1):3+(7==this.f?2:0)},function(a){P(this,a,0,Nd);this.b-=this.i?9:3+(7==
this.f?2:0)}],ef=[V,function(a){a=zd(this,a,65536);ud(this,a);O(this,a);this.b-=11},function(a){var b=wd(this),c=this.b;Ad(this,a,65536,b);O(this,b);this.b=c-re[this.i]},V];function ff(a){r.call(this,"ROM",a,ff);this.f=null;this.D=a.addr;this.i=a.size;this.G=a.writable;this.B=a.alias;this.C=a.file;this.H=da(this.C);if(this.C){a=this.C;var b=ea(this.H);"json"!=b&&"hex"!=b&&(a=ga()+"/api/v1/dump?file="+this.C+"&format=bytes&decimal=true");var c=this;ua(a,null,!0,function(a,b,f){gf(c,a,b,f)})}}y(ff);
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function xf(a){of.call(this,a);this.ta=!0;this.K=X(0);this.Na=X(0);this.S=X(0);this.G=[];this.f=this.M=this.F=[];yf(this);this.la=0;zf(this);this.va={};Af(this,a.messages);this.Ea=a.commands;var b=this;window?void 0===window.pdp11&&(window.pdp11=function(a){return Hc(b,a)}):void 0===global.pdp11&&(global.pdp11=function(a){return Hc(b,a)})}y(xf,of);
var Bf={"?":"help/print","a [#]":"assemble","b [#]":"breakpoint",c:"clear output","d [#]":"dump memory","e [#]":"edit memory","g [#]":"go [to #]",h:"halt","if":"eval expression","int [#]":"request interrupt",k:"stack trace",ln:"list nearest symbol(s)",m:"messages",p:"step over",print:"print expression",r:"dump/set registers",reset:"reset machine",s:"set options","t [#]":"trace","u [#]":"unassemble","var":"assign variable",ver:"print version"},Cf="NONE ADC ADCB ADD ASL ASLB ASR ASRB BCC BCS BEQ BGE BGT BHI BIC BICB BIS BISB BIT BITB BLE BLOS BLT BMI BNE BPL BPT BR BVC BVS CCC CLC CLCN CLCV CLCVN CLCVZ CLCZ CLCZN CLN CLR CLRB CLV CLVN CLVZ CLVZN CLZ CLZN CMP CMPB COM COMB DEC DECB INC INCB HALT JMP JSR MARK MFPD MFPI MFPS MOV MOVB MTPD MTPI MTPS NEG NEGB NOP RESET ROL ROLB ROR RORB RTI RTS SBC SBCB SCC SEC SECN SECV SECVN SECVZ SECZ SECZN SEN SEV SEVN SEVZ SEVZN SEZ SEZN SUB SWAB SXT TST TSTB WAIT MUL DIV ASH ASHC XOR SOB EMT TRAP SPL IOT RTT MFPT".split(" "),
Df={61440:{4096:[62,4032,63],8192:[47,4032,63],12288:[18,4032,63],16384:[14,4032,63],20480:[16,4032,63],24576:[3,4032,63],36864:[63,4032,63],40960:[48,4032,63],45056:[19,4032,63],49152:[15,4032,63],53248:[17,4032,63],57344:[94,4032,63]},65024:{2048:[57,448,63],28672:[100,63,448],29184:[101,63,448],29696:[102,63,448],30208:[103,63,448],30720:[104,448,63],32256:[105,448,8192]},65280:{256:[27,4096],512:[24,4096],768:[10,4096],1024:[11,4096],1280:[22,4096],1536:[12,4096],1792:[20,4096],32768:[25,4096],
function yf(a){pf.call(this,a);this.ta=!0;this.K=X(0);this.Ma=X(0);this.T=X(0);this.G=[];this.f=this.M=this.D=[];zf(this);this.la=0;Af(this);this.va={};Bf(this,a.messages);this.Da=a.commands;var b=this;window?void 0===window.pdp11&&(window.pdp11=function(a){return Ic(b,a)}):void 0===global.pdp11&&(global.pdp11=function(a){return Ic(b,a)})}y(yf,pf);
var Cf={"?":"help/print","a [#]":"assemble","b [#]":"breakpoint",c:"clear output","d [#]":"dump memory","e [#]":"edit memory","g [#]":"go [to #]",h:"halt","if":"eval expression","int [#]":"request interrupt",k:"stack trace",ln:"list nearest symbol(s)",m:"messages",p:"step over",print:"print expression",r:"dump/set registers",reset:"reset machine",s:"set options","t [#]":"trace","u [#]":"unassemble","var":"assign variable",ver:"print version"},Df="NONE ADC ADCB ADD ASL ASLB ASR ASRB BCC BCS BEQ BGE BGT BHI BIC BICB BIS BISB BIT BITB BLE BLOS BLT BMI BNE BPL BPT BR BVC BVS CCC CLC CLCN CLCV CLCVN CLCVZ CLCZ CLCZN CLN CLR CLRB CLV CLVN CLVZ CLVZN CLZ CLZN CMP CMPB COM COMB DEC DECB INC INCB HALT JMP JSR MARK MFPD MFPI MFPS MOV MOVB MTPD MTPI MTPS NEG NEGB NOP RESET ROL ROLB ROR RORB RTI RTS SBC SBCB SCC SEC SECN SECV SECVN SECVZ SECZ SECZN SEN SEV SEVN SEVZ SEVZN SEZ SEZN SUB SWAB SXT TST TSTB WAIT MUL DIV ASH ASHC XOR SOB EMT TRAP SPL IOT RTT MFPT".split(" "),
Ef={61440:{4096:[62,4032,63],8192:[47,4032,63],12288:[18,4032,63],16384:[14,4032,63],20480:[16,4032,63],24576:[3,4032,63],36864:[63,4032,63],40960:[48,4032,63],45056:[19,4032,63],49152:[15,4032,63],53248:[17,4032,63],57344:[94,4032,63]},65024:{2048:[57,448,63],28672:[100,63,448],29184:[101,63,448],29696:[102,63,448],30208:[103,63,448],30720:[104,448,63],32256:[105,448,8192]},65280:{256:[27,4096],512:[24,4096],768:[10,4096],1024:[11,4096],1280:[22,4096],1536:[12,4096],1792:[20,4096],32768:[25,4096],
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function Mf(a,b){var c;if(b&&"?"==b[1])a.g("register commands:"),a.g("\tr\tdump registers"),a.g("\trx [#]\tset flag or register x to [#]");else{var d=a.b;null==c&&(c=!0);if(b&&1<b.length){var e=b[1],f=e.indexOf("=");if(0<f)b=e.substr(f+1),e=e.substr(0,f);else if(2<b.length)b=b[2];else{a.g("missing value for "+b[1]);return}f=sf(a,b);if(void 0===f)return;b=e.toUpperCase();switch(b){case "SP":case "R6":d.u[6]=f&65535;break;case "PC":case "R7":od(d,f);a.K=X(d.u[7]);break;case "N":d.T=f?32768:0;break;
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function Sf(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.g(">> "+b):(a.U&&(a.g("ended assemble at "+J(a,a.S.A)),a.K=a.S,a.U=!1),b="");var e=b.charAt(0);if('"'==e||"'"==e)return!0;a.ma=null;if(ib(a)&&0<b.length){a.U&&(b="a "+J(a,a.S.A)+" "+b);var f=!1,g=b.replace(/ +/g," ").split(" ");if(g&&g.length)for(var l=g[0],m=l.charAt(0),p=1;p<l.length;p++){var q=l.charAt(p);if("?"==m||"r"==m||"a">q||"z"<q){g[0]=l.substr(p);g.unshift(l.substr(0,p));break}}g[0]=g[0].toLowerCase();switch(g[0].charAt(0)){case "a":var w=
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a.g("\tbn [n]\tbreak after [n] instruction(s)");else{var ya=C.charAt(1);if("l"==ya){var Oc;Oc=0+Rf(a,a.f);Oc+=Rf(a,a.M);(Oc+=Rf(a,a.F))||a.g("no breakpoints")}else if("n"==ya)a.la=uf(a,x),a.g("break after "+a.la+" instruction(s)");else if(void 0===x)a.g("missing breakpoint address");else{var U=X();if("*"!=x&&(U=Ff(a,x,!0),!U))break a;"c"==ya?null==U.A?(yf(a),a.g("all breakpoints cleared")):Pf(a,a.f,U)||Pf(a,a.M,U)||Pf(a,a.F,U)||a.g("breakpoint missing: "+J(a,U.A)):null!=U.A&&(Jf(a,U,D),"p"==ya?a.Oa(a.f,
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break}Mf(a,g);break;case "s":a:switch(g[1]){case "base":if(g[2]){var xb=+g[2];if(8==xb||10==xb||16==xb)a.ha=xb;else{a.g("invalid base: "+xb);break}}a.g("default base: "+a.ha);break;case "cs":var yb;void 0!==g[3]&&(yb=+g[3]);switch(g[2]){case "int":a.b.Xa=yb;break;case "start":a.b.kb=yb;break;case "stop":a.b.Ya=yb;break;default:a.g("unknown cs option");break a}void 0!==yb&&Gc(a.b);a.g("checksums "+(a.b.v.Wa?"enabled":"disabled"));break;case "sp":void 0!==g[2]&&(Kc(a.b,+g[2])||a.g("warning: using 1x multiplier, previous target not reached"));
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function eg(a,b){if(!b){var c;if("object"==typeof resources&&(c=resources.parms))try{b=eval("("+c+")")}catch(d){n(d.message+" ("+c+")")}}a.V=b}function Ec(a,b,c){var d=b.toLowerCase(),d=Wa[b]||Wa[d];void 0===d&&a.V&&(d=a.V[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=cb(a.id),e=0;e<=d.length;e++){var f=e<d.length?d[e]:a;if(!ib(f)){ib(f,function(){jg(a,b,c)});return}}b.call(a,c)}
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h.lb=function(a){void 0===a&&(a=this.f||(this.I?1:fg));if(!this.C){this.C++;var b=!1,c=!1;this.S=!1;var d=this.K||new N(this,"1.30.1");if(-1==a)b=!0;else if(a>fg){if(hg(d,this.I)){this.F=new N(this,"1.30.1","failsafe");hg(this.F)&&(mg(this,d),a=2,ng(this.F));this.F.set("timestamp",ta());og(this.F);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"==
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h.Lb=function(a){var b=a[0],c=0>a[1];a=a[2];this.ea=!0;this.v.ga=!0;var d=this.J.power;d&&(d.textContent="Shutdown");this.b&&(pg(this,this.b,b,c,a),this.b.fb());this.S&&(mg(this,b),b.clear());!c&&this.F&&(this.F.clear(),delete this.F);this.C=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.i||"";b=b.toString();var d={app:"PDPjs",ver:"1.30.1"};d.url=a.da;d.user=c;d.type="bug";d.data=b;ua("http://www.pcjs.org/api/v1/report",d,!0)}}
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h.Ba=function(a,b,c,d){this.w=b;this.b=c;this.B=a;(a=Fc(a,"messages"))&&Bf(this,a);this.Ua=Ef;Ff(this,function(a){a:{var b=d.w.W,c=a[0],e=a=0,m=b.length;if(c){a=Z(Gf(d,c));if(-1===a){d.g("invalid address: "+c);break a}e=a>>>d.w.Y;m=1}d.g("blockid physical blockaddr used size type");d.g("-------- --------- ---------- ------ ------ ----");for(var c=-1,p=0;m--;){var q=b[e];q.type==c?p++||d.g("..."):(c=q.type,p=Rb[c],q&&d.g(k(q.id,8)+" %"+k(e<<d.w.Y,8)+" %%"+k(q.A,8)+" "+k(q.ob,4,
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h.pa=function(a,b,c){var d=this;switch(b){case "debugInput":return this.ka=this.I[b]=c,c.onkeydown=function(a){var b;if(13==a.keyCode)b=c.value,c.value="",Ic(d,b,!0);else if(27==a.keyCode)c.value=b="";else if(38==a.keyCode?(b=null,d.C<d.i.length-1&&(b=d.i[++d.C])):40==a.keyCode&&(0<d.C?b=d.i[--d.C]:(b="",d.C=-1)),null!=b){var e=b.length;c.value=b;c.setSelectionRange(e,e)}null!=b&&a.preventDefault&&a.preventDefault()},!0;case "debugEnter":return this.I[b]=c,Fa(c,function(){if(d.ka){var a=d.ka.value;
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h.mb=function(a,b,c){var d=Z(a);-1!==d&&(Tb(this.w,d,b),c&&Hf(a,c),this.B.aa(!0))};h.Ra=function(a,b,c){var d=Z(a);if(-1!==d){var e=this.w,f=d&e.f,g=(d&e.i)>>>e.Y;e.w++;e.W[g].Fb(f,b&65535,d);e.w--;c&&Hf(a,c);this.B.aa(!0)}};function X(a){return{A:a,wa:!1}}function If(a){return[a.A,a.wa]}function Jf(a){return{A:a[0],wa:a[1]}}
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