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Update ACCESSED bits in GDT/LDT descriptors (finally)

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This commit is contained in:
Jeff Parsons 2015-05-11 13:11:30 -07:00 • committed by jeffpar
commit 5eed275008
7 changed files with 229 additions and 182 deletions
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34
modules/pcjs/lib/memory.js
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@ -59,8 +59,8 @@ var littleEndian = (TYPEDARRAYS? (function() {
* Memory(addr, used, size, type, controller)
*
* The Bus component allocates Memory objects so that each has a memory buffer with a
* block-granular starting address and an address range equal to bus.blockSize; however,
* the size of any given Memory object's underlying buffer can be either zero or bus.blockSize;
* block-granular starting address and an address range equal to bus.nBlockSize; however,
* the size of any given Memory object's underlying buffer can be either zero or bus.nBlockSize;
* memory read/write functions for empty (buffer-less) blocks are mapped to readNone/writeNone.
*
* The Bus allocates empty blocks for the entire address space during initialization, so that
@ -239,6 +239,19 @@ Memory.TYPE = {
*/
Memory.idBlock = 0;
/**
* adjustEndian(dw)
*
* @param {number} dw
* @return {number}
*/
Memory.adjustEndian = function(dw) {
if (TYPEDARRAYS && !littleEndian) {
dw = (dw << 24) | ((dw << 8) & 0x00ff0000) | ((dw >> 8) & 0x0000ff00) | (dw >>> 24);
}
return dw;
};
Memory.prototype = {
constructor: Memory,
parent: null,
@ -467,19 +480,6 @@ Memory.prototype = {
this.dbg.redoBreakpoints(addr, size);
}
},
/**
* adjustEndian(dw)
*
* @this {Memory}
* @param {number} dw
* @return {number}
*/
adjustEndian: function(dw) {
if (TYPEDARRAYS && !littleEndian) {
dw = (dw << 24) | ((dw << 8) & 0x00ff0000) | ((dw >> 8) & 0x0000ff00) | (dw >>> 24);
}
return dw;
},
/**
* getPageBlock(addr, fWrite)
*
@ -513,8 +513,8 @@ Memory.prototype = {
this.iPDE = offPDE >> 2; // convert offPDE into iPDE (an adw index)
this.blockPTE = blockPTE;
this.iPTE = offPTE >> 2; // convert offPTE into iPTE (an adw index)
this.bitPTEDirty = this.adjustEndian(X86.PTE.ACCESSED | X86.PTE.DIRTY);
this.bitPTEAccessed = this.adjustEndian(X86.PTE.ACCESSED);
this.bitPTEDirty = Memory.adjustEndian(X86.PTE.ACCESSED | X86.PTE.DIRTY);
this.bitPTEAccessed = Memory.adjustEndian(X86.PTE.ACCESSED);
},
/**
* addBreakpoint(off, fWrite)