Remove reference to nonexistent disk image
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4 changed files with 7 additions and 7 deletions
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@ -74,7 +74,7 @@ with a response of 304 ("Not Modified") and the following response headers:
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X-Powered-By: Express
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And here's where the "blank page" problem occurs: pressing Safari's Reload button. Again, the request looks the same as before,
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and the response is still be 304 ("Not Modified"), but the page is blank, and the response now looks like:
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and the response is still 304 ("Not Modified"), but the page is blank, and the response now looks like:
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Date: Mon, 14 Apr 2014 22:21:15 GMT
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Cache-Control: public, max-age=0
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@ -158,9 +158,9 @@ a 16-bit Windows component that manages the Windows 95 installation process:
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#05C7:6A05 665F POP EDI
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#05C7:6A07 C3 RET
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Ths above code checks for B1 stepping [Errata #7](/blog/2015/02/23/): "Wrong Register Size for String Instructions
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in Mixed 16/32-bit Addressing Systems." It returns AX == 0 if the STOSB instruction updated EDI correctly (0xFFFFFFFF)
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or AX == 1 if EDI is incorrect (0x0000FFFF).
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Ths above code checks for B1 stepping [Errata #7](/pubs/pc/reference/intel/80386/#b1-errata): "Wrong Register Size for
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String Instructions in Mixed 16/32-bit Addressing Systems." It returns AX == 0 if the STOSB instruction updated EDI
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correctly (0xFFFFFFFF) or AX == 1 if EDI is incorrect (0x0000FFFF).
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If Errata #7 is detected, then Windows 95 SETUP displays the following message and aborts:
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@ -200,7 +200,7 @@ installed, it *will* start up on a B1 stepping.
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PCjs stepping support is extremely limited at this point. Here's a summary:
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1. 80386 steppings A0-B0 provide *limited* support for the short-lived XBTS and IBTS instructions
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2. 80386 steppings A0-B1 enable [Errata #7](/blog/2015/02/23/) for STOSB (as tested by Windows 95; see above)
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2. 80386 steppings A0-B1 enable [Errata #7](/pubs/pc/reference/intel/80386/#b1-errata) for STOSB (as tested by Windows 95; see above)
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3. 80386 stepping B1 enables 32-bit multiplication errors (as tested by Windows 95; see above)
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4. 80386 stepping B2 includes all supported B1 errata, but without 32-bit multiplication errors
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@ -13,7 +13,7 @@
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<fdc ref="/disks/pc/library.xml" automount='{A: {name: "PC-DOS 3.30 (Disk 1)", path: "/disks/pc/dos/ibm/3.30/PCDOS330-DISK1.json"}, B: {name: "VGA Tests (Black Book)", path: "/tests/pc/vga/VGABIN.json"}}'/>
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<debugger id="debugger" messages="fault|int" commands=""/>
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<panel ref="/devices/pc/panel/btpanel.xml"/>
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<hdc id="hdcAT" type="at" drives='[{name:"20Mb Hard Disk",type:2,path:"/disks/pc/games/id/wolf3d/harddisk.json"}]'/>
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<hdc id="hdcAT" type="at" drives='[{name:"20Mb Hard Disk",type:2}]'/>
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<chipset id="chipset" model="deskpro386" floppies="[1200,1200]" monitor="vga"/>
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<serial id="com1" adapter="1"/>
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<serial id="com2" adapter="2" binding="print"/>
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@ -79,7 +79,7 @@ include it in the SDK at a later date.
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### Using SDKED
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As previously noted, we don't have a copy of this SDK's documentation. But we *have* unearthed a copy of the
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"[User's Guide to the Z Editor](/disks/pc/tools/microsoft/misc/root/Z.TXT)", by Mark Zbikowski, August 4, 1986,
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"[User's Guide to the Z Editor](/disks/pc/tools/microsoft/misc/root/Z.TXT)" by Mark Zbikowski, August 4, 1986,
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included below. **SDKED** was an OS/2 port of the Z Editor.
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