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Hacked the Bus component to permit devices to access the actual memory map (better solution will be maintain two separate maps: one for the CPU and a separate map for device access)

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This commit is contained in:
Jeff Parsons 2016-11-28 13:27:06 -08:00 • committed by Jeff Parsons
commit 375146f6bb
9 changed files with 733 additions and 698 deletions
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13
devices/pdp11/machine/1170/4mb/README.md Normal file
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@ -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" %}

15
devices/pdp11/machine/1170/4mb/debugger/README.md Normal file
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@ -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" %}

15
devices/pdp11/machine/1170/4mb/debugger/machine.xml Normal file
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@ -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>

14
devices/pdp11/machine/1170/4mb/machine.xml Normal file
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@ -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>

126
modules/pdp11/lib/bus.js
View file

@ -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)

218
modules/pdp11/lib/cpustate.js
View file

@ -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) {

15
modules/pdp11/lib/rl11.js
View file

@ -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);
};
/*

591
versions/pdpjs/1.30.5/pdp11-dbg.js
View file

@ -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
*/
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k.save=function(){var a=0,b=[];b[a++]=[this.La,this.f,this.la,this.ra,this.ia,this.ya];if(!this.g)for(var c=this.b,d=0;d<c.length;d++)for(var e=0;e<c[d].length;e++)for(var f=0;f<c[d][e].length;f++){var g=c[d][e][f];if(g&&g.Ma){for(var h=[],l=0,m=g.Wa,n=g.Wa+g.Ma;m<n;)h[l++]=g.data[m++];b[a++]=[d,e,f,g.Wa,h]}}return b};
k.restore=function(a){var b=0,c="unsupported restore format";if(a&&0<a.length){var d=0,e=a[d++];e&&2<=e.length&&(!this.b.length&&6<=e.length?Ih(this,"local",e[2],e[3],e[4],e[5]):null!=e[1]&&null!=this.f&&e[1]!=this.f&&(c="original checksum ("+e[1]+") differs from current checksum ("+this.f+")",b=-2));for(this.b.length||(b=-1);d<a.length&&0<=b;){var f=0,g=a[d++],h=g[f++],l=g[f++],m=g[f++];if(h>=this.b.length||l>=this.b[h].length||m>=this.b[h][l].length){c="sector (CHS="+h+":"+l+":"+m+") out of range ("+
b+" changes applied)";b=-1;break}if(this.g){c="unable to modify write-protected disk";b=-1;break}e=g[f++];f=g[f++];g=e+f.length;if(h=this.b[h][l][m]){for(l=h.data.length;l<e;)h.data[l++]=h.pattern;l=0;h.Wa=e;for(h.Ma=f.length;e<g;)h.data[e++]=f[l++];b++}}}0>b&&-2!=b&&this.controller.N("Unable to restore disk '"+this.Ta+": "+c);return b};
k.toJSON=function(){var a;a=0;for(var b;b=Oh(this,a++);)Rh(b);a=JSON.stringify(this.b,function(a,b){if("file"!=a)return b});a=a.replace(/,"length":512/gm,"").replace(/,"pattern":0/gm,"");a=a.replace(/"(sector|length|data|pattern)":/gm,"$1:");a=a.replace(/,"[^"]*":([0-9]+|true|false)/gm,"");a=a.replace(/(sector|length|data|pattern):/gm,'"$1":');return a=a.replace(/([\]}]),/gm,"$1,\n")};
function Rh(a){var b=a.data,c=b.length;if(c<<2==a.length){for(var d=c-1,e=b[d],f=0;d--&&b[d]===e;)f++;f++&&(b.length=c-f,a.pattern=e)}}function Q(a){x.call(this,"RK11",a,Q,65536);this.J=a.autoMount||{};this.F=0;this.g=Array(8);this.K=!Ma("Mobi")&&window&&"FileReader"in window}B(Q);k=Q.prototype;
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k.Ha=function(a,b,c,d){this.B=a;this.v=b;this.b=c;this.j=d;if((a=yd(this.B,"autoMount"))&&"string"==typeof a)try{a=eval("("+a+")")}catch(f){w(this.type+" auto-mount error: "+f.message+" ("+a+")"),a=null}if(a)for(var e in a)e.substr(0,2)==this.type.substr(0,2)&&(this.J[e]=a[e]);Uh(this);this.Gb=Mc(144,5,65536);Jb(b,this,Vh);Lb(b,this.reset.bind(this));Wh(this,"None","",!0);this.K&&Wh(this,"Local Disk","?");Wh(this,"Remote Disk","??");Xh(this)||J(this)};
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k.cd=function(a,b,c,d,e,f){this.w=f&65535;this.M=this.M&-49|f>>12&48;this.H=65536-e&65535;a&&(this.A=this.A|a|32768,this.M|=49152);return!0};k.ed=function(a,b,c,d,e,f,g){var h=0,l=a.Z,m=null,n;l||(h=128,e=0);for(;e--;){if(!m){m=a.Z.seek(b,c,d+1);if(!m){h=4096;break}n=0}var r,t;if(0>(r=a.Z.read(m,n++))||0>(t=a.Z.read(m,n++))){h=32;break}this.v.nb(f,r|t<<8);if(Ic(this.v)){h=1024;break}f+=2;if(n>=l.ya&&(m=null,++d>=l.ia&&(d=0,++c>=l.ra&&(c=0,++b>=l.la)))){h=64;break}}return g(h,b,c,d,e,f)};
k.fd=function(a,b,c,d,e,f,g){var h=0,l=a.Z,m=null,n;l||(h=128,e=0);for(;e--;){var r=this.v.Va(f);if(Ic(this.v)){h=1024;break}f+=2;if(!m){m=a.Z.seek(b,c,d+1,!0);if(!m){h=4096;break}n=0}if(!a.Z.write(m,n++,r&255)||!a.Z.write(m,n++,r>>8)){h=32;break}if(n>=l.ya&&(m=null,++d>=l.ia&&(d=0,++c>=l.ra&&(c=0,++b>=l.la)))){h=64;break}}return g(h,b,c,d,e,f)};k.le=function(){return this.L};k.jf=function(){};k.me=function(){return this.A};k.kf=function(){};k.ie=function(){return this.M&61438};
k.ff=function(a){this.M=this.M&-3968|a&3967;if(this.M&1){var b,c=!0;a=(this.f&57344)>>13;var d=this.g[a],e,f,g,h;this.M&=-129;switch(this.M&14){case 0:this.L=d.status;this.A=0;this.M=128;this.f=0;break;case 4:b=this.ed;case 2:b||(b=this.fd),e=(this.f&8160)>>5,f=(this.f&16)>>4,g=this.f&15,e>=d.la?(this.A|=32832,this.M|=49152):g>=d.ia?(this.A|=32800,this.M|=49152):(h=(this.M&48)<<12|this.w,c=65536-this.H&65535,c=b.call(this,d,e,f,g,c,h,this.cd.bind(this)))}this.L=d.status|a<<13|this.f%9&15;c&&(this.M&=
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function P(a){x.call(this,"RL11",a,P,131072);this.K=a.autoMount||{};this.H=0;this.g=Array(4);this.L=!Ma("Mobi")&&window&&"FileReader"in window}B(P);k=P.prototype;
k.va=function(a,b,c){var d=this;switch(b){case "listDisks":return this.D[b]=c,c.onchange=function(){var a=d.D.descDisk,b=c.options[c.selectedIndex];if(a&&b){var g={};if(b=b.getAttribute("data-value"))try{g=eval("("+b+")")}catch(h){w("RL11 option error: "+h.message)}b=g.desc;void 0===b&&(b="");g=g.href;void 0!==g&&(b='<a href="'+g+'" target="_blank">'+b+"</a>");a.innerHTML=b}},!0;case "descDisk":case "listDrives":return this.D[b]=c,c.onchange=function(){var a=ma(c.value,10);null!=a&&ai(d,a)},!0;case "loadDrive":return this.D[b]=
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k.Ha=function(a,b,c,d){this.B=a;this.v=b;this.b=c;this.j=d;if((a=yd(this.B,"autoMount"))&&"string"==typeof a)try{a=eval("("+a+")")}catch(f){w(this.type+" auto-mount error: "+f.message+" ("+a+")"),a=null}if(a)for(var e in a)e.substr(0,2)==this.type.substr(0,2)&&(this.K[e]=a[e]);ci(this);this.Gb=Mc(112,5,131072);Jb(b,this,di);Lb(b,this.reset.bind(this));ei(this,"None","",!0);this.L&&ei(this,"Local Disk","?");ei(this,"Remote Disk","??");fi(this)||J(this)};
k.Ka=function(a,b){if(!b){if(!a||!this.restore){if(this.reset(),this.B.qc){for(a=0;a<this.g.length;a++)gi(this,a,!0);fi(this,!0)}}else if(!this.restore(a))return!1;if(a=this.D.listDrives){for(;a.firstChild;)a.removeChild(a.firstChild);a.value="";for(b=0;4>b;b++){var c=document.createElement("option");c.value=b;c.text="RL"+b;a.appendChild(c)}a.value="0";ai(this,0)}}return!0};k.Ja=function(a){return a?this.save():!0};k.reset=function(){ci(this)};k.save=function(){return(new S(this)).data()};
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k.hd=function(a,b,c,d,e){var f;a.yb=!1;b&&(f=Nh(b),b&&f[0]>a.la||f[1]>a.ra)&&(this.N('Disk "'+c+'" too large for drive '+("RL"+a.zb)),b=null);b?(a.Z=b,a.Ta=c,a.La=d,this.N('Mounted disk "'+c+'" in drive '+("RL"+a.zb),a.xb||e),this.B&&this.B.mb()):a.ab=!1;a.xb&&(a.xb=!1,--this.H||J(this));ai(this,a.zb)};
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function ai(a,b){if(0<=b&&b<a.g.length){var c=a.g[b],d=a.D.listDisks;a=a.D.listDrives;if(d&&a&&d.options&&a.options&&(a=ma(a.value,10),c=c.ab?"?":c.La,!isNaN(a)&&a==b)){for(b=0;b<d.options.length;b++)if(d.options[b].value==c){d.selectedIndex!=b&&(d.selectedIndex=b);break}b==d.options.length&&(d.selectedIndex=0)}}}function gi(a,b,c){var d=a.g[b];if(d.Z||!1===c)d.Ta="",d.La="",d.Z=null,d.ab=!1,c||(a.N("Drive RL"+b+" unloaded",c),ai(a,b))}
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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]=
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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]&&
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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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"Mhz")+" ("+a.b.jb+"x)");break;default:if(g[1]){a.i("unknown option: "+g[1]);break}case "?":a.i("debugger options:"),a.i("\tbase #\t\tset default base to #"),a.i("\tcs int #\tset checksum cycle interval to #"),a.i("\tcs start #\tset checksum cycle start count to #"),a.i("\tcs stop #\tset checksum cycle stop count to #"),a.i("\tsp #\t\tset speed multiplier to #")}break;case "t":Yi(a,g[0],g[1]);break;case "u":Ki(a,g[1],g[2],8);break;case "v":if("var"==g[0]){Vi(a,b.substr(3))||(d=!1);break}if("ver"==
g[0]){a.i("PDPjs version 1.30.5 ("+a.b.ib+",RELEASE"+(Bb?",TYPEDARRAYS":",LONGARRAYS")+")");a.i(window?window.navigator.userAgent:"");break}f=!0;break;case "?":if(g[1]){Xi(a,b.substr(1));break}var re="commands:",se;for(se in wi)re+="\n"+ta(se,9)+wi[se];Ie(a)||(re+="\nnote: history disabled if no exec breakpoints");a.i(re);break;default:f=!0}f&&(a.i("unknown command: "+b),d=!1)}}catch(sh){a.i("debugger error: "+(sh.stack||sh.message)),d=!1}return d}
function Cd(a,b,c){b=li(a,b,c);for(var d in b)if(!Pi(a,b[+d]))return!1;return!0}ab(function(){for(var a=F(document,"pdp11","debugger"),b=0;b<a.length;b++){var c=a[b],d=D(c),d=new si(d);E(d,c)}});
function $i(a,b,c){x.call(this,"Computer",a,$i,33554432);this.C.ma=!1;aj(this,b);this.L=yd(this,"autoPower",a);this.g=0;this.ba=a.busWidth||a.buswidth;this.f=bj;this.J=null;this.F=this.T=!1;this.fa=yd(this,"url")||"";(Math.random()+.1).toString(36);this.B=cj(this);if(this.b=ob("CPU",this.id)){this.j=ob("Debugger",this.id);this.v=new pc({id:this.fb+".bus",busWidth:this.ba},this.b,this.j);var d,e=mb(this.id);if((this.w=ob("Panel",this.id))&&this.w.Za)for(b=0;b<e.length;b++)d=e[b],d.N=this.w.N,d.i=this.w.i,
d.Za=this.w.Za;this.i("PDPjs v1.30.5\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>");this.i("Portions adapted from the PDP-11/70 Emulator v1.4 by Paul Nankervis <paulnank@hotmail.com>");for(b=0;b<e.length;b++)d=e[b],d.Ha&&d.Ha(this,this.v,this.b,this.j);b=null;d=a.resume;void 0!==d&&(1<d.length?b=this.H=d:this.f=parseInt(d,10));var f;if(a=yd(this,"state")||(f=!0,a.state))b=this.O=a,f||(this.F=!0,this.f=bj),this.f&&(this.K=
new S(this,"1.30.5"),dj(this.K)?b=null:delete this.K);!b&&this.f&&(b=ej(this))&&(this.F=!0);if(b){var g=this;Da(b,null,!0,function(a,b,c){c?(g.H=null,g.F=!1,g.N("Unable to load machine state from server (error "+c+(b?": "+ya(b):"")+")")):(g.J=b,g.T=!0);J(g)})}else J(this);this.D.power||(this.L=!0);!c&&this.L&&fj(this,this.Xb)}else w("Unable to find CPU component")}B($i);var bj=0;
function aj(a,b){if(!b){var c;if("object"==typeof resources&&(c=resources.parms))try{b=eval("("+c+")")}catch(d){w(d.message+" ("+c+")")}}a.U=b}function yd(a,b,c){var d=b.toLowerCase(),d=fb[b]||fb[d];void 0===d&&a.U&&(d=a.U[b]);void 0===d&&c&&(d=c[b]);void 0===d&&"object"==typeof resources&&resources[b]&&(d=b);return d}function fj(a,b,c){for(var d=mb(a.id),e=0;e<=d.length;e++){var f=e<d.length?d[e]:a;if(!yb(f)){yb(f,function(){fj(a,b,c)});return}}b.call(a,c)}
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k.Xb=function(a){void 0===a&&(a=this.f||(this.J?1:bj));if(!this.g){this.g++;var b=!1,c=!1;this.S=!1;var d=this.K||new S(this,"1.30.5");if(-1==a)b=!0;else if(a>bj){if(dj(d,this.J)){this.A=new S(this,"1.30.5","failsafe");dj(this.A)&&(ij(this,d),a=2,jj(this.A));this.A.set("timestamp",Ca());kj(this.A);var e=this.f&&!this.F;if(1==a||Ga("Click OK to restore the previous PDPjs machine state, or CANCEL to reset the machine.")){if(c=hj(d)){var f=d.get("code"),g=d.get("data");f&&("ok"==f?dj(d,g):("error"==
f&&"no machine state"!=g?(this.N("Error: "+g),"unable to verify user"==g&&(Ka("user",""),this.B=null)):this.i(f+": "+g),jj(d),dj(d)?(c=hj(d),e=!0):c=!1))}e&&gj(this,c?d:null)}else 2==a&&d.clear()}else gj(this);delete this.J;delete this.K}e=mb(this.id);for(f=0;f<e.length;f++)g=e[f],g!==this&&g!=this.b&&(c=lj(this,g,d,b,c));b=[d,a,c];-1!=a?fj(this,this.Lc,b):this.Lc(b)}};
function lj(a,b,c,d,e){if(!b.C.ma){b.C.ma=!0;if(b.Ka){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.Ka(f,d)&&f&&(w("Unable to restore state for "+b.type),a.O&&!a.T?(c.clear(),a.f=bj,window&&window.location.reload()):a.S=!0,b.Ka(null),e=!1)}if(!d&&b.Dc)for(a=b.Dc.split("|"),c=0;c<a.length;c++)b.status(a[c])}return e}
k.Lc=function(a){var b=a[0],c=0>a[1];a=a[2];this.ga=!0;this.C.ma=!0;var d=this.D.power;d&&(d.textContent="Shutdown");this.b&&(lj(this,this.b,b,c,a),this.xa(),this.b.Eb());this.S&&(ij(this,b),b.clear());!c&&this.A&&(this.A.clear(),delete this.A);this.g=0};
function ij(a,b){if(Ga("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.B||"";b=b.toString();var d={app:"PDPjs",ver:"1.30.5"};d.url=a.fa;d.user=c;d.type="bug";d.data=b;Da("http://www.pcjs.org/api/v1/report",d,!0)}}
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function bj(a,b,c){x.call(this,"Computer",a,bj,33554432);this.C.ma=!1;cj(this,b);this.L=Ad(this,"autoPower",a);this.g=0;this.aa=a.busWidth||a.buswidth;this.f=dj;this.I=null;this.F=this.T=!1;this.fa=Ad(this,"url")||"";(Math.random()+.1).toString(36);this.B=ej(this);if(this.b=ob("CPU",this.id)){this.j=ob("Debugger",this.id);this.v=new pc({id:this.ib+".bus",busWidth:this.aa},this.b,this.j);var d,e=mb(this.id);if((this.w=ob("Panel",this.id))&&this.w.bb)for(b=0;b<e.length;b++)d=e[b],d.O=this.w.O,d.i=this.w.i,
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function cj(a,b){if(!b){var c;if("object"==typeof resources&&(c=resources.parms))try{b=eval("("+c+")")}catch(d){w(d.message+" ("+c+")")}}a.U=b}function Ad(a,b,c){var d=b.toLowerCase(),d=fb[b]||fb[d];void 0===d&&a.U&&(d=a.U[b]);void 0===d&&c&&(d=c[b]);void 0===d&&"object"==typeof resources&&resources[b]&&(d=b);return d}function hj(a,b,c){for(var d=mb(a.id),e=0;e<=d.length;e++){var f=e<d.length?d[e]:a;if(!yb(f)){yb(f,function(){hj(a,b,c)});return}}b.call(a,c)}
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h.toJSON=function(){var a;a=0;for(var b;b=Kf(this,a++);)Nf(b);a=JSON.stringify(this.a,function(a,b){if("file"!=a)return b});a=a.replace(/,"length":512/gm,"").replace(/,"pattern":0/gm,"");a=a.replace(/"(sector|length|data|pattern)":/gm,"$1:");a=a.replace(/,"[^"]*":([0-9]+|true|false)/gm,"");a=a.replace(/(sector|length|data|pattern):/gm,'"$1":');return a=a.replace(/([\]}]),/gm,"$1,\n")};
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h.fa=function(a,b,c,d){this.l=a;this.g=b;this.a=c;this.G=d;if((a=xc(this.l,"autoMount"))&&"string"==typeof a)try{a=eval("("+a+")")}catch(f){w(this.type+" auto-mount error: "+f.message+" ("+a+")"),a=null}if(a)for(var e in a)e.substr(0,2)==this.type.substr(0,2)&&(this.A[e]=a[e]);Zf(this);this.Ra=Yb(112,5,131072);fb(b,this,$f);hb(b,this.reset.bind(this));ag(this,"None","",!0);this.w&&ag(this,"Local Disk","?");ag(this,"Remote Disk","??");bg(this)||E(this)};
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h.xc=function(a,b,c,d,e){var f;a.Ha=!1;b&&(f=Jf(b),b&&f[0]>a.O||f[1]>a.S)&&(this.D('Disk "'+c+'" too large for drive '+("RL"+a.Ia)),b=null);b?(a.J=b,a.oa=c,a.da=d,this.D('Mounted disk "'+c+'" in drive '+("RL"+a.Ia),a.Ga||e),this.l&&Dc(this.l)):a.Aa=!1;a.Ga&&(a.Ga=!1,--this.s||E(this));Xf(this,a.Ia)};
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