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Added information about Windows 95 processor and stepping detection

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This commit is contained in:
Jeff Parsons 2015-10-28 15:14:46 -07:00
commit b967ba9a52
4 changed files with 184 additions and 11 deletions
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10
modules/pcjs/lib/defines.js
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@ -55,7 +55,9 @@ var DEBUGGER = true; // this @define is overridden by the Closure Com
/**
* @define {boolean}
*
* PREFETCH enables the use of a prefetch queue.
* PREFETCH enables the use of a prefetch queue. As of v1.20.0, PREFETCH support has been updated and retested,
* but as currently implemented, it does not yield as much improvement as I'd hoped when paging is enabled, so PREFETCH
* is still off by default.
*/
var PREFETCH = false;
@ -71,7 +73,7 @@ var FATARRAYS = false;
/**
* TYPEDARRAYS enables use of typed arrays for Memory blocks. This used to be a compile-time-only option, but I've
* added Memory access functions for typed arrays (see Memory.afnTypedArray), so support can be enabled dynamically.
* added Memory access functions for typed arrays (see Memory.afnTypedArray), so support can be enabled dynamically now.
*
* See the Memory component for details.
*/
@ -123,7 +125,7 @@ var I386 = true;
/**
* @define {boolean}
*
* COMPAQ386 enables Compaq DeskPro 386 support.
* COMPAQ386 enables Compaq DeskPro 386 support. Requires I386 support as well (duh).
*/
var COMPAQ386 = true;
@ -133,7 +135,7 @@ var COMPAQ386 = true;
* PAGEBLOCKS enables 80386 paging support with assistance from the Bus component. This affects how the Bus component
* defines physical memory parameters for a 32-bit bus. With the 8086 and 80286 processors, the Bus component was free
* to choose any block size for physical memory allocations that made sense for the bus width (eg, 4Kb blocks for a
* 20-bit bus, or 16Kb blocks for 24-bit bus).
* 20-bit bus, or 16Kb blocks for a 24-bit bus).
*
* However, for the 80386 processor, it makes more sense to choose a block size that matches the page size (ie, 4Kb),
* because then we have the option of altering the address-to-memory mapping for any block to match whatever page table