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No more MAX_ADDRESS hacks for "fake" register addresses

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Jeff 2016-10-03 17:14:05 -07:00 • committed by Jeff Parsons
commit 8a78eb7d6b
1 changed files with 3 additions and 14 deletions
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17
modules/pdp11/lib/cpustate.js
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@ -216,8 +216,8 @@ CPUStatePDP11.prototype.resetRegs = function()
/** /**
* initMemoryAccess() * initMemoryAccess()
* *
* Define getAddr() handlers appropriate for the current MMU mode, in order to * Define getAddr() handler and DSPACE setting appropriate for the current MMU mode, in order to eliminate
* eliminate unnecessary calls to mapVirtualToPhysical(). * unnecessary calls to mapVirtualToPhysical().
* *
* @this {CPUStatePDP11} * @this {CPUStatePDP11}
*/ */
@ -1184,18 +1184,7 @@ CPUStatePDP11.prototype.mapVirtualToPhysical = function(virtualAddress, accessFl
*/ */
CPUStatePDP11.prototype.readWordFromPhysical = function(physicalAddress) CPUStatePDP11.prototype.readWordFromPhysical = function(physicalAddress)
{ {
if (physicalAddress >= BusPDP11.MAX_ADDRESS) { return this.bus.getWord(physicalAddress);
return this.regsGen[physicalAddress - BusPDP11.MAX_ADDRESS];
} else {
// if (physicalAddress >= BusPDP11.IOPAGE_UNIBUS) {
// return this.bus.access_iopage(physicalAddress, -1, 0);
// } else {
if (physicalAddress >= 0) {
return this.bus.getWord(physicalAddress);
}
// }
}
return physicalAddress;
}; };
/** /**