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Switched interrupt management to a new set of Trigger functions and static Trigger objects, eliminating the old InterruptQueue of constantly created/destroyed InterruptEvents

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This commit is contained in:
Jeff Parsons 2016-10-13 10:20:11 -07:00 • committed by Jeff Parsons
commit 686396d726
6 changed files with 255 additions and 254 deletions
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5
modules/pdp11/lib/cpu.js
View file

@ -898,6 +898,11 @@ CPUPDP11.prototype.calcRemainingTime = function()
*
* Why not use JavaScript's setTimeout() instead? Good question. For a good answer, see setTimer() below.
*
* TODO: Consider making the addTimer() and setTimer() interfaces more like the addTrigger() and setTrigger()
* interfaces (which return the underlying object instead of an array index) and maintaining a separate list
* of active timers, in order of highest to lowest cycle countdown values, as this could speed up getBurstCycles()
* and updateTimers() functions ever so slightly.
*
* @this {CPUPDP11}
* @param {function()} callBack
* @return {number} timer index

4
modules/pdp11/lib/cpuops.js
View file

@ -1704,8 +1704,8 @@ PDP11.opWAIT = function(opCode)
*
* 1) opWAIT() sets a new opFlags bit (OPFLAG.WAIT)
* 2) Rewind the PC back to the WAIT instruction
* 3) Whenever stepCPU() detects OPFLAG.WAIT, call checkInterruptQueue()
* 4) If checkInterruptQueue() detects an interrupt, advance PC past the WAIT and then dispatch the interrupt
* 3) Whenever stepCPU() detects OPFLAG.WAIT, call checkInterrupts()
* 4) If checkInterrupts() detects an interrupt, advance PC past the WAIT and then dispatch the interrupt
*
* Technically, the PC is already exactly where it's supposed to be, so why are we wasting time with steps
* 2 and 4? It's largely for the Debugger's sake, so that as long as execution is "blocked" by a WAIT, that's

185
modules/pdp11/lib/cpustate.js
View file

@ -87,29 +87,30 @@ 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
* priority, vector, and delay (ie, a number of instructions to execute before dispatching 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.
* Now we are trying something more efficient. First, for devices that require delays (like a serial port's receiver
* and transmitter buffer registers that are supposed to "clock" the data in and out at a specific baud rate), the
* CPU offers timer services that will "fire" a callback after a specified delay, which are much more efficient than
* requiring the CPU to dive into an interrupt queue 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.
* Second, devices that generate interrupts will allocate a trigger object during initialization; we will no longer
* be creating and destroying interrupt event objects and inserting/deleting them in a constantly changing queue. Each
* trigger contains properties that never change (eg, the vector and priority), along with a "next" pointer that's
* only used when the trigger is active.
*
* 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.
* When a device decides it's time to interrupt (either at the end of some I/O operation or when a timer has "fired"),
* it will simply "pull the trigger", which basically means that its trigger will be linked onto a list of active
* triggers, and in priority order, so that when the CPU is ready to acknowledge interrupts, it need only check the
* top of the active trigger list.
*/
/**
* @typedef {{
* vector: number,
* priority: number,
* request: number,
* next: (Trigger|null)
* }} Trigger
*/
@ -125,10 +126,10 @@ CPUStatePDP11.prototype.initProcessor = function()
this.decode = PDP11.op1170.bind(this);
/** @type {Array.<Trigger>} */
this.aTriggers = [];
this.aTriggers = []; // list of all triggers, active or not (TODO: DEBUG-only?)
/** @type {Trigger|null} */
this.triggerNext = null;
this.triggerNext = null; // the head of the active triggers list, in priority order
this.initRegs();
@ -599,23 +600,11 @@ CPUStatePDP11.prototype.setSP = function(addr)
*/
CPUStatePDP11.prototype.addTrigger = function(vector, priority)
{
var trigger = {vector: vector, priority: priority, request: -1, next: null};
var trigger = {vector: vector, priority: priority, next: null};
this.aTriggers.push(trigger);
return trigger;
};
/**
* checkTriggers()
*
* @this {CPUStatePDP11}
*/
CPUStatePDP11.prototype.checkTriggers = function()
{
if (this.triggerNext && this.setTrigger(this.triggerNext)) {
this.removeTrigger(this.triggerNext);
}
};
/**
* insertTrigger(trigger)
*
@ -638,7 +627,7 @@ CPUStatePDP11.prototype.insertTrigger = function(trigger)
break;
}
triggerPrev = triggerNext;
} while (true);
} while (triggerPrev);
}
}
};
@ -655,14 +644,14 @@ CPUStatePDP11.prototype.removeTrigger = function(trigger)
if (triggerPrev == trigger) {
this.triggerNext = trigger.next;
} else {
do {
while (triggerPrev) {
var triggerNext = triggerPrev.next;
if (triggerNext == trigger) {
triggerPrev.next = triggerNext.next;
break;
}
triggerPrev = triggerNext;
} while (true);
}
}
};
@ -670,16 +659,65 @@ CPUStatePDP11.prototype.removeTrigger = function(trigger)
* setTrigger(trigger)
*
* @this {CPUStatePDP11}
* @param {Trigger|null} trigger
* @param {Trigger} 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;
/*
* For now, we will not dispatch interrupts immediately, but always defer to checkInterrupts() instead.
*
if (this.dispatchInterrupt(trigger.vector, trigger.priority)) {
return true;
}
*/
this.insertTrigger(trigger);
this.opFlags |= PDP11.OPFLAG.INTQ;
return false;
};
/**
* checkTriggers(priority)
*
* @this {CPUStatePDP11}
* @param {number} priority
* @return {Trigger|null}
*/
CPUStatePDP11.prototype.checkTriggers = function(priority)
{
return (this.triggerNext && this.triggerNext.priority > priority)? this.triggerNext : null;
};
/**
* checkInterrupts()
*
* @this {CPUStatePDP11}
*/
CPUStatePDP11.prototype.checkInterrupts = function()
{
if (this.opFlags & PDP11.OPFLAG.INTQ) {
this.opFlags &= ~PDP11.OPFLAG.INTQ;
var vector = PDP11.TRAP.PIRQ;
var priority = (this.regPIR & PDP11.PSW.PRI) >> PDP11.PSW.SHIFT.PRI;
var trigger = this.checkTriggers(priority);
if (trigger) {
vector = trigger.vector;
priority = trigger.priority;
}
if (this.dispatchInterrupt(vector, priority)) {
if (trigger) this.removeTrigger(trigger);
}
}
else if (this.opFlags & PDP11.OPFLAG.INTQ_SPL) {
/*
* We know that INTQ (bit 1) is clear, so since INTQ_SPL (bit 0) is set, incrementing opFlags
* will transform INTQ_SPL into INTQ, without affecting any other (higher) bits.
*/
this.opFlags++;
}
return true;
};
/**
@ -704,61 +742,6 @@ CPUStatePDP11.prototype.dispatchInterrupt = function(vector, priority)
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;) {
if (this.interruptQueue[i].delay > 0) {
this.interruptQueue[i].delay--;
this.opFlags |= PDP11.OPFLAG.INTQ;
break; // Decrement only one delay 'difference' per cycle
}
if (this.interruptQueue[i].callback) {
if (!this.interruptQueue[i].callback()) {
this.interruptQueue.splice(i, 1);
continue;
}
//delete
this.interruptQueue[i].callback = null;
}
if (this.interruptQueue[i].priority > savePSW) {
savePSW = this.interruptQueue[i].priority;
interruptEvent = this.interruptQueue[i];
this.interruptQueue.splice(i, 1);
}
}
if (savePSW > (this.regPSW & 0xe0)) {
if (this.opFlags & PDP11.OPFLAG.WAIT) {
this.advancePC(2);
this.opFlags &= ~PDP11.OPFLAG.WAIT;
}
if (!interruptEvent) {
this.trap(PDP11.TRAP.PIRQ, PDP11.REASON.INTERRUPT);
} else {
this.trap(interruptEvent.vector, PDP11.REASON.INTERRUPT);
}
}
*/
}
else if (this.opFlags & PDP11.OPFLAG.INTQ_SPL) {
/*
* We know that INTQ (bit 1) is clear, so since INTQ_SPL (bit 0) is set, incrementing opFlags
* will transform INTQ_SPL into INTQ, without affecting any other (higher) bits.
*/
this.opFlags++;
}
};
/**
* getPSW()
*
@ -768,11 +751,11 @@ CPUStatePDP11.prototype.checkInterrupts = function()
CPUStatePDP11.prototype.getPSW = function()
{
/*
* I'm not sure why this function can't simply be written as:
* TODO: I'm not sure why this function can't simply be written as:
*
* return (this.regPSW & ~PDP11.PSW.FLAGS) | (this.getNF() | this.getZF() | this.getVF() | this.getCF());
*
* but for now, I'm keeping the same masking logic as pdp11.js.
* but for now, I'm keeping the same masking logic as the original pdp11.js.
*/
var mask = PDP11.PSW.CMODE | PDP11.PSW.PMODE | PDP11.PSW.REGSET | PDP11.PSW.PRI | PDP11.PSW.TF;
return this.regPSW = (this.regPSW & mask) | this.getNF() | this.getZF() | this.getVF() | this.getCF();
@ -817,11 +800,23 @@ CPUStatePDP11.prototype.setPSW = function(newPSW)
this.regsAltStack[oldMode] = this.regsGen[6];
this.regsGen[6] = this.regsAltStack[this.mmuMode];
}
this.regPSW = newPSW;
/*
* Trigger a call to checkInterrupts()
* Trigger a call to checkInterrupts(), just in case.
*
* TODO: I think this is overdone; if you set a breakpoint on checkInterrupts(), you'll see that a significant
* percentage of calls do nothing. For example, you'll usually see a spurious checkInterrupts() immediately after
* an interrupt has been dispatched, because it's dispatched via trap(), and trap() calls setPSW().
*
* I mean, sure, it's POSSIBLE that the new PSW loaded by trap() actually set a lower priority, allowing a lower
* priority interrupt to immediately be acknowledged. But perhaps we should a bit more rigorous here.
*
* For example, we could avoid setting INTQ unless 1) there's actually an active interrupt trigger (ie, triggerNext
* is not null) or 2) an optional fCheckInterrupts flag is passed to us, because the caller has some knowledge
* that priority could be changing. Just throwing out some ideas....
*/
this.opFlags |= PDP11.OPFLAG.INTQ;
this.regPSW = newPSW;
};
/**

2
modules/pdp11/lib/defines.js
View file

@ -186,7 +186,7 @@ var PDP11 = {
*/
OPFLAG: {
INTQ_SPL: 0x01, // INTQ triggered by SPL
INTQ: 0x02, // call checkInterruptQueue()
INTQ: 0x02, // call checkInterrupts()
WAIT: 0x04, // WAIT operation in progress
TRAP_TF: 0x10, // aka PDP11.PSW.TF
TRAP_MMU: 0x20,

195
versions/pdpjs/1.30.1/pdp11-dbg.js
View file

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h.$=function(a,b){var c=!1;0>this.ma?this.ma=Db(this):this.C||(a=4,c=!0);this.D&57344||(this.Ia=63222,this.Bb=a);this.C=0;var d=this.M(a|this.V),e=this.M(a+2&65535|this.V);mc(this,e&-12289|this.ma>>2&12288);c&&(this.Z|=4,this.u[6]=4);vd(this,this.ma);vd(this,this.u[7]);qd(this,d);this.F&=-113;this.ma=-1;if(26!=b)throw a;};function wd(a){var b=xd(a),c=xd(a)&-1793;a.L&49152&&(c=c&-225|a.L&63712);qd(a,b);mc(a,c);a.F&=-17}
function yd(a,b,c){var d,e,f,g=0;d=b>>13;a.Ja&a.kc[a.C]||(d&=7);e=a.P[a.C][d];f=(a.oa[a.C][d]<<6)+(b&8191)&a.gb;if(f<a.va)f&1&&!(c&1)&&(a.Z|=64,a.$(4,10));else if(a.Ja&16||253952<=f&&(f|=4186112),4186112>f){if(3932160<=f){f&=262143;var l=f>>13&31;31>l?a.Ja&32&&(f=a.oc[l]+(f&8190)&4194302,3932160<=f&&4186112>f&&console.log("panic(898)")):f|=4186112}f>=a.va&&4186112>f&&(a.Z|=32,a.$(4,12))}switch(e&7){case 1:g=4096;case 2:e|=128;c&4&&(g=8192);break;case 4:g=4096;case 5:c&4&&(g=4096);case 6:e|=c&4?192:
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function vd(a,b){var c=a.u[6]-2&65535;a.u[6]=c;a.D&57344||(a.Ia=a.Ia<<8|246);!a.C&&c<=a.Ka&&4<c&&(c<=a.Ka-32?(a.Z|=4,a.u[6]=4,a.$(4,18)):(a.Z|=8,a.F|=4));a.Rb(c,b)}
function zd(a,b,c,d){var e,f,g=d&8?0:a.V;switch(b){case 0:return a.$(4,20),0;case 1:return 6===c&&!a.C&&d&4&&(a.u[6]<=a.Ka||65534<=a.u[6])&&(a.u[6]<=a.Ka-32||65534<=a.u[6]?(a.Z|=4,a.u[6]=4,a.$(4,22)):(a.Z|=8,a.F|=64)),a.b-=3,7===c?a.u[c]:a.u[c]|g;case 2:f=2;e=a.u[c];7!==c&&(e|=g,6>c&&d&1&&(f=1));a.b-=3;break;case 3:f=2;e=a.u[c];7!==c&&(e|=g);e=a.M(e);e|=g;a.b-=7;break;case 4:f=-2;6>c&&d&1&&(f=-1);e=a.u[c]+f&65535;7!==c&&(e|=g);a.b-=4;break;case 5:f=-2;e=a.u[c]-2&65535;7!==c&&(e|=g);e=a.M(e)|g;a.b-=
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function mc(a,b){a.S=b<<12;a.X=~b&4;a.O=b<<14;a.N=b<<16;if((b^a.L)&2048)for(var c=a.Ca.length;0<=--c;){var d=a.u[c];a.u[c]=a.Ca[c];a.Ca[c]=d}a.C=b>>14&3;c=a.L>>14&3;a.C!=c&&(a.ra[c]=a.u[6],a.u[6]=a.ra[a.C]);a.L=b;a.D|=2}function O(a,b){a.D&128||(a.S=a.X=b,a.O=0)}function rd(a,b,c){a.D&128||(a.S=a.X=a.N=b,a.O=c||0)}function sd(a,b,c,d){a.D&128||(a.S=a.X=a.N=b,a.O=(c^b)&(d^b))}function td(a,b){a.D&128||(a.S=a.X=a.N=b,a.O=a.S^a.N>>1)}function ud(a,b,c,d){a.D&128||(a.S=a.X=a.N=b,a.O=(c^d)&(d^b))}
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function yd(a,b,c){var d,e,f,g=0;d=b>>13;a.Ja&a.kc[a.C]||(d&=7);e=a.P[a.C][d];f=(a.oa[a.C][d]<<6)+(b&8191)&a.hb;if(f<a.va)f&1&&!(c&1)&&(a.Z|=64,a.$(4,10));else if(a.Ja&16||253952<=f&&(f|=4186112),4186112>f){if(3932160<=f){f&=262143;var l=f>>13&31;31>l?a.Ja&32&&(f=a.oc[l]+(f&8190)&4194302,3932160<=f&&4186112>f&&console.log("panic(898)")):f|=4186112}f>=a.va&&4186112>f&&(a.Z|=32,a.$(4,12))}switch(e&7){case 1:g=4096;case 2:e|=128;c&4&&(g=8192);break;case 4:g=4096;case 5:c&4&&(g=4096);case 6:e|=c&4?192:
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this.f?2:0)}],ff=[V,function(a){a=Ad(this,a,65536);vd(this,a);O(this,a);this.b-=11},function(a){var b=xd(this),c=this.b;Bd(this,a,65536,b);O(this,b);this.b=c-se[this.i]},V];function gf(a){r.call(this,"ROM",a,gf);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){hf(c,a,b,f)})}}y(gf);
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var Df={"?":"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"},Ef="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(" "),
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function Zf(a,b,c){var d=[],e=Z(b)>>>0;for(b=0;b<a.G.length;b++){var f=a.G[b],g=f.A>>>0,l=f.lc;if(e>=g&&e<g+l){e=qa(f.Hb,[e-g],a.Ib);0<=e?$f(a,b,e,d):c&&(e=~e,$f(a,b,e-1,d),$f(a,b,e,d));break}}return d}function $f(a,b,c,d){var e={},f=a.G[b].Hb,g=0,l=null;0<=c&&c<f.length&&(g=f[c][0],l=f[c][1]);l&&(e=a.G[b].za[l],l="."==l.charAt(0)?null:e.l||l);d.push(l);d.push(g);d.push(e.a);d.push(e.c)}
function ag(a,b){var c=b.match(/^\s*([A-Z_]?[A-Z0-9_]*)\s*(=?)\s*(.*)$/i);if(c){if(!c[1])return yf(a)||a.g("no variables"),!0;if(!c[2])return yf(a,c[1]);if(!c[3])return delete a.ba[c[1]],!0;b=uf(a,c[3]);return void 0!==b?(a.ba[c[1]]=b,!0):!1}a.g("invalid assignment:"+b);return!1}
function bg(a,b,c){var d=null;if(b=Hf(a,b,!0)){var e=Zf(a,b,!0);if(e.length){var f,g;e[0]&&(g="",(f=b.A-e[1])&&(g=" + "+k(f,4,!0)),f=e[0]+" ("+J(a,e[1])+")"+g,c&&a.g(f),d=f);4<e.length&&e[4]&&(g="",(f=e[5]-b.A)&&(g=" - "+k(f,4,!0)),f=e[4]+" ("+J(a,e[5])+")"+g,c&&a.g(f),d||(d=f))}else c&&a.g("no symbols")}return d}
function Of(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=uf(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":qd(d,f);a.K=X(d.u[7]);break;case "N":d.S=f?32768:0;break;
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function dg(a,b,c){var d="t"!=b;c=wf(a,c,null,!0)||1;var e=1==c?0:1;"tc"==b&&(e=c,c=1);Ea(c,function(){return gb(a,!0)&&a.ab(e,d,!1)},function(){a.B.aa();gb(a,!1)})}
function dg(a,b,c){var d="t"!=b;c=wf(a,c,null,!0)||1;var e=1==c?0:1;"tc"==b&&(e=c,c=1);Ea(c,function(){return gb(a,!0)&&a.bb(e,d,!1)},function(){a.B.aa();gb(a,!1)})}
function Pf(a,b,c,d){if(b=Hf(a,b,!0)){void 0===d&&(d=1);var e=256;if(void 0!==c){d=Hf(a,c,!0);if(!d||d.A<b.A)return;e=d.A-b.A;if(256<e){a.g("range too large");return}d=-1}c=0;for(var f;0<e&&d--;){f=hb(a,!1)||a.V?a.H:null;var g=null!=f?"cycles":null,l=Zf(a,b),m=b.A;if(l[0]&&d&&(!c&&d||0>l[0].indexOf("+"))){var p=l[0]+":";l[2]&&(p+=" "+l[2]);a.g(p)}l[3]&&(g=l[3],f=null);f=Vf(a,b,g,f);a.g(f);a.K=b;e-=b.A-m;c++}}}
function Uf(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.T.A)),a.K=a.T,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.T.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 Rc;Rc=0+Tf(a,a.f);Rc+=Tf(a,a.M);(Rc+=Tf(a,a.D))||a.g("no breakpoints")}else if("n"==ya)a.la=wf(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=Hf(a,x,!0),!U))break a;"c"==ya?null==U.A?(Af(a),a.g("all breakpoints cleared")):Rf(a,a.f,U)||Rf(a,a.M,U)||Rf(a,a.D,U)||a.g("breakpoint missing: "+J(a,U.A)):null!=U.A&&(Lf(a,U,D),"p"==ya?a.Na(a.f,
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if("dh"==Qa){var Ee=ha,Fe=za,Ge="",He=0,ba=a.ea,ia=a.J;if(ia.length){var Y=+Ee||a.Ta,nb=+Fe||10;isNaN(Y)?Y=nb:Ge="more ";Y>ia.length&&(a.g("note: only "+ia.length+" available"),Y=ia.length);ba-=Y;0>ba&&(null==ia[ia.length-1].A?(Y=ba+Y,ba=0):ba+=ia.length);var Uc=[];"call"==Fe&&(nb=1E5,Uc=["CALL"]);for(void 0!==Ee&&a.g(Y+" instructions earlier:");0<nb&&ba!=a.ea;){var Ie=ia[ba++];if(null==Ie.A)break;var ob=X(Ie.A),xg=Y--,Je=Vf(a,ob,"history",xg);(!Uc.length||0<=Je.indexOf(Uc[0]))&&a.g(Je);ob.xb&&(ba+=
ob.xb,nb-=ob.xb,Y-=ob.xb);ba>=ia.length&&(ba=0);a.Ta=Y;He++;nb--}}He||(a.g("no "+Ge+"history available"),a.Ta=void 0)}else{var pb=Hf(a,ha);if(pb){var Zb=0;za&&("l"==za.charAt(0)&&(za=za.substr(1)||wg),Zb=wf(a,za)>>>0,65536<Zb&&(Zb=65536));for(var qb="",Ta="dd"==Qa?4:"dw"==Qa?2:1,$b=Ta*Zb||128,yg=$b+15>>4||1;yg--&&0<$b;){var ac=0,rb=0,sb,Vc="",Ke="",ha=J(a,pb.A);for(sb=4==Ta?16:a.ha;0<sb&&0<$b;sb--){var Wc,bc=2==Ta?a.ja(pb,Wc=2):a.Pa(pb,Wc=1),ac=ac|bc<<(rb<<3),rb=rb+Wc;rb==Ta&&(Vc+=J(a,ac,Ta),Vc+=
1==Ta?9==sb?"-":" ":" ",ac=rb=0);Ke+=32<=bc&&128>bc?String.fromCharCode(bc):".";$b--}qb&&(qb+="\n");qb+=ha+" "+Vc+(0==sb?" "+Ke:"")}qb&&a.g(qb);a.Ma=pb}}}}break;case "e":if("else"==g[0])break;var Ua,Xc,Yc,Zc,$c=g[0],ad=g[1];"eb"==$c?(Ua=1,Xc=255,Yc=a.Pa,Zc=a.mb):"e"==$c||"ew"==$c?(Ua=2,Xc=65535,Yc=a.ja,Zc=a.Ra):ad=null;if(null==ad)a.g("edit memory commands:"),a.g("\teb [a] [...] edit bytes at address a"),a.g("\tew [a] [...] edit words at address a");else{var cc=Hf(a,ad);if(cc)for(var dc=2;dc<
g.length;dc++){var tb=uf(a,g[dc]);if(void 0===tb){a.g("unrecognized value: "+g[dc]);break}tb&~Xc&&a.g("warning: "+k(tb)+" exceeds "+Ua+"-byte value");var zg=Yc.call(a,cc);a.g("changing "+J(a,cc.A)+" from "+J(a,zg,Ua)+" to "+J(a,tb,Ua));Zc.call(a,cc,tb,Ua)}}break;case "g":a:{var Le=g[1],Ag=b;if(void 0!==Le){var bd=Hf(a,Le,!0);if(!bd)break a;Lf(a,bd,Ag);a.Na(a.f,bd,!0)}a.$a(!0)||c||a.g("cpu busy or unavailable, run command ignored")}break;case "h":a.v.da?(c||a.g("halting"),a.fa()):hb(a,!0)||c||a.g("already halted");
break;case "i":if("if"==g[0]){var cd;var ub=b.substr(2),ub=oa(ub);uf(a,ub)?(c||a.g("true: "+ub),cd=!0):(c||a.g("false: "+ub),cd=!1);cd||(d=!1);break}f=!0;break;case "k":var Bg=g[0];if("?"==g[1])a.g("stack trace commands:"),a.g("\tk\tshow frame addresses"),a.g("\tks\tshow symbol information");else{var dd=0,ed=X(),vb=X(a.b.u[6]);for(a.g("stack trace for "+J(a,vb.A));10>dd;){for(var Aa=null,Cg=256;65536>vb.A>>>0;){ed.A=a.ja(vb,2);if(null==vb.A||!Cg--)break;if(!(ed.A&1)){for(var Dg=a,ec=ed,Me=null,wb=
ec.A,Ne=wb,fd=1;6>=fd&&wb;fd++){if(2<fd){ec.A=wb;var fc=Vf(Dg,ec);if(0<=fc.indexOf("JSR")){var Oe=fc.indexOf(" ");if(wb+(fc.indexOf(" ",Oe+1)-Oe-1)/2==Ne){Me=fc;break}}}wb-=2}ec.A=Ne;if(Aa=Me)break}}if(!Aa||null==Aa)break;var Pe=null;if("ks"==Bg){var Qe=Aa.match(/[0-9A-F]+$/);Qe&&(Pe=bg(a,Qe[0]))}Aa=na(Aa,50)+" ;"+(Pe||"stack="+J(a,vb.A));a.g(Aa);dd++}dd||a.g("no return addresses found")}break;case "l":if("ln"==g[0]){bg(a,g[1],!0);break}f=!0;break;case "m":a:{var ja,ka=null,F=g[1];"?"==F&&(F=void 0);
ob.xb,nb-=ob.xb,Y-=ob.xb);ba>=ia.length&&(ba=0);a.Ta=Y;He++;nb--}}He||(a.g("no "+Ge+"history available"),a.Ta=void 0)}else{var pb=Hf(a,ha);if(pb){var Yb=0;za&&("l"==za.charAt(0)&&(za=za.substr(1)||wg),Yb=wf(a,za)>>>0,65536<Yb&&(Yb=65536));for(var qb="",Ta="dd"==Qa?4:"dw"==Qa?2:1,Zb=Ta*Yb||128,yg=Zb+15>>4||1;yg--&&0<Zb;){var $b=0,rb=0,sb,Vc="",Ke="",ha=J(a,pb.A);for(sb=4==Ta?16:a.ha;0<sb&&0<Zb;sb--){var Wc,ac=2==Ta?a.ja(pb,Wc=2):a.Pa(pb,Wc=1),$b=$b|ac<<(rb<<3),rb=rb+Wc;rb==Ta&&(Vc+=J(a,$b,Ta),Vc+=
1==Ta?9==sb?"-":" ":" ",$b=rb=0);Ke+=32<=ac&&128>ac?String.fromCharCode(ac):".";Zb--}qb&&(qb+="\n");qb+=ha+" "+Vc+(0==sb?" "+Ke:"")}qb&&a.g(qb);a.Ma=pb}}}}break;case "e":if("else"==g[0])break;var Ua,Xc,Yc,Zc,$c=g[0],ad=g[1];"eb"==$c?(Ua=1,Xc=255,Yc=a.Pa,Zc=a.mb):"e"==$c||"ew"==$c?(Ua=2,Xc=65535,Yc=a.ja,Zc=a.Ra):ad=null;if(null==ad)a.g("edit memory commands:"),a.g("\teb [a] [...] edit bytes at address a"),a.g("\tew [a] [...] edit words at address a");else{var bc=Hf(a,ad);if(bc)for(var cc=2;cc<
g.length;cc++){var tb=uf(a,g[cc]);if(void 0===tb){a.g("unrecognized value: "+g[cc]);break}tb&~Xc&&a.g("warning: "+k(tb)+" exceeds "+Ua+"-byte value");var zg=Yc.call(a,bc);a.g("changing "+J(a,bc.A)+" from "+J(a,zg,Ua)+" to "+J(a,tb,Ua));Zc.call(a,bc,tb,Ua)}}break;case "g":a:{var Le=g[1],Ag=b;if(void 0!==Le){var bd=Hf(a,Le,!0);if(!bd)break a;Lf(a,bd,Ag);a.Na(a.f,bd,!0)}a.ab(!0)||c||a.g("cpu busy or unavailable, run command ignored")}break;case "h":a.v.da?(c||a.g("halting"),a.fa()):hb(a,!0)||c||a.g("already halted");
break;case "i":if("if"==g[0]){var cd;var ub=b.substr(2),ub=oa(ub);uf(a,ub)?(c||a.g("true: "+ub),cd=!0):(c||a.g("false: "+ub),cd=!1);cd||(d=!1);break}f=!0;break;case "k":var Bg=g[0];if("?"==g[1])a.g("stack trace commands:"),a.g("\tk\tshow frame addresses"),a.g("\tks\tshow symbol information");else{var dd=0,ed=X(),vb=X(a.b.u[6]);for(a.g("stack trace for "+J(a,vb.A));10>dd;){for(var Aa=null,Cg=256;65536>vb.A>>>0;){ed.A=a.ja(vb,2);if(null==vb.A||!Cg--)break;if(!(ed.A&1)){for(var Dg=a,dc=ed,Me=null,wb=
dc.A,Ne=wb,fd=1;6>=fd&&wb;fd++){if(2<fd){dc.A=wb;var ec=Vf(Dg,dc);if(0<=ec.indexOf("JSR")){var Oe=ec.indexOf(" ");if(wb+(ec.indexOf(" ",Oe+1)-Oe-1)/2==Ne){Me=ec;break}}}wb-=2}dc.A=Ne;if(Aa=Me)break}}if(!Aa||null==Aa)break;var Pe=null;if("ks"==Bg){var Qe=Aa.match(/[0-9A-F]+$/);Qe&&(Pe=bg(a,Qe[0]))}Aa=na(Aa,50)+" ;"+(Pe||"stack="+J(a,vb.A));a.g(Aa);dd++}dd||a.g("no return addresses found")}break;case "l":if("ln"==g[0]){bg(a,g[1],!0);break}f=!0;break;case "m":a:{var ja,ka=null,F=g[1];"?"==F&&(F=void 0);
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break}Of(a,g);break;case "s":a:switch(g[1]){case "base":if(g[2]){var yb=+g[2];if(8==yb||10==yb||16==yb)a.ha=yb;else{a.g("invalid base: "+yb);break}}a.g("default base: "+a.ha);break;case "cs":var zb;void 0!==g[3]&&(zb=+g[3]);switch(g[2]){case "int":a.b.Wa=zb;break;case "start":a.b.jb=zb;break;case "stop":a.b.Xa=zb;break;default:a.g("unknown cs option");break a}void 0!==zb&&Hc(a.b);a.g("checksums "+(a.b.v.Va?"enabled":"disabled"));break;case "sp":void 0!==g[2]&&(Lc(a.b,+g[2])||a.g("warning: using 1x multiplier, previous target not reached"));
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function eg(a,b,c){var d,e="none";if(a.B)return null;a.B--;var f=new N(a,"1.30.1"),g=new N(a,"1.30.1","validate"),l=ta();g.set("timestamp",l);f.set("timestamp",l);f.set("version","1.30.1");f.set("url",window?window.location.href:null);f.set("browser",window?window.navigator.userAgent:"");a.b&&a.b.xa&&(c&&a.b.fa(),d=a.b.xa(b,c),"object"===typeof d&&f.set(a.b.id,d),c&&(a.b.v.ga=!1,!1===d&&(e=null)));for(var l=cb(a.id),m=0;m<l.length;m++){var p=l[m];p.v.ga&&(p.xa&&(d=p.xa(b,c),"object"===typeof d&&f.set(p.id,
d)),c&&(p.v.ga=!1,!1===d&&(e=null)))}e&&(c?(l=d=!1,b?(a.i&&sg(a,a.i,f.toString()),qg(g)&&qg(f)||(e=null,d=l=!0)):a.f&&(d=!0,l=3==a.f),d&&f.clear(l)):e=f.toString());c&&(a.v.ga=!1,b=a.I.power)&&(b.textContent="Power");a.B=0;return e}h.reset=function(){this.w&&this.w.reset&&(B(this,"Resetting "+this.w.type),this.w.reset());for(var a=cb(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.w&&c.reset&&(B(this,"Resetting "+c.type),c.reset())}};
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132
versions/pdpjs/1.30.1/pdp11.js
View file

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this.O("PDPjs v1.30.1\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>");this.O("Portions adapted from the PDP-11/70 Emulator v1.4 by Paul Nankervis <paulnank@hotmail.com>");for(b=0;b<e.length;b++)d=e[b],d.ja&&d.ja(this,this.l,this.a,this.I);b=null;d=a.resume;void 0!==d&&(1<d.length?b=this.w=d:this.b=parseInt(d,10));var f;if(a=Gb(this,"state")||(f=!0,a.state))b=this.D=a,f||(this.o=!0,this.b=td),this.b&&(this.A=new L(this,
"1.30.1"),vd(this.A)?b=null:delete this.A);!b&&this.b&&(b=wd(this))&&(this.o=!0);if(b){var h=this;m(b,null,!0,function(a,b,c){c?(h.w=null,h.o=!1,h.K("Unable to load machine state from server (error "+c+(b?": "+ia(b):"")+")")):(h.s=b,h.H=!0);D(h)})}else D(this);this.v.power||(this.B=!0);!c&&this.B&&xd(this,this.Aa)}else p("Unable to find CPU component")}x(rd);var td=0;
function sd(a,b){if(!b){var c;if("object"==typeof resources&&(c=resources.parms))try{b=eval("("+c+")")}catch(d){p(d.message+" ("+c+")")}}a.J=b}function Gb(a,b,c){var d=b.toLowerCase(),d=Aa[b]||Aa[d];void 0===d&&a.J&&(d=a.J[b]);void 0===d&&c&&(d=c[b]);void 0===d&&"object"==typeof resources&&resources[b]&&(d=b);return d}function xd(a,b,c){for(var d=y(a.id),e=0;e<=d.length;e++){var f=e<d.length?d[e]:a;if(!Ia(f)){Ia(f,function(){xd(a,b,c)});return}}b.call(a,c)}
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f&&"no machine state"!=h?(this.K("Error: "+h),"unable to verify user"==h&&(qa("user",""),this.c=null)):this.O(f+": "+h),Bd(d),vd(d)?(c=zd(d),e=!0):c=!1))}e&&yd(this,c?d:null)}else 2==a&&d.clear()}else yd(this);delete this.s;delete this.A}e=y(this.id);for(f=0;f<e.length;f++)h=e[f],h!==this&&h!=this.a&&(c=Dd(this,h,d,b,c));b=[d,a,c];-1!=a?xd(this,this.bb,b):this.bb(b)}};
function Dd(a,b,c,d,e){if(!b.h.L){b.h.L=!0;if(b.aa){var f=null;e&&((f=c.get(b.id))||(f=c.get(b.id.replace(/[a-z0-9]\./i,"."))));"string"===typeof f&&(f=null);!b.aa(f,d)&&f&&(p("Unable to restore state for "+b.type),a.D&&!a.H?(c.clear(),a.b=td,window&&window.location.reload()):a.G=!0,b.aa(null),e=!1)}if(!d&&b.eb)for(a=b.eb.split("|"),c=0;c<a.length;c++)b.status(a[c])}return e}
g.bb=function(a){var b=a[0],c=0>a[1];a=a[2];this.R=!0;this.h.L=!0;var d=this.v.power;d&&(d.textContent="Shutdown");this.a&&(Dd(this,this.a,b,c,a),this.a.za());this.G&&(Ad(this,b),b.clear());!c&&this.m&&(this.m.clear(),delete this.m);this.g=0};
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