diff --git a/blog/2015/06/01/README.md b/blog/2015/06/01/README.md
index 695f921fb..e0908c355 100644
--- a/blog/2015/06/01/README.md
+++ b/blog/2015/06/01/README.md
@@ -143,5 +143,8 @@ graphics modes >= 0x0D are misdetected as BIOSMODE 0x12.
All these issues are under investigation.
+In addition, I've created a [VGA Tests](/tests/pc/vga/) directory to hold VGA test and sample code that I want PCjs
+to run successfully. See that directory for more details.
+
*[@jeffpar](http://twitter.com/jeffpar)*
-*June 1, 2015*
+*June 1, 2015 (Updated June 10, 2015)*
diff --git a/devices/pc/machine/compaq/deskpro386/vga/2048kb/machine.xml b/devices/pc/machine/compaq/deskpro386/vga/2048kb/machine.xml
index 27af7e1f9..66418fb7e 100644
--- a/devices/pc/machine/compaq/deskpro386/vga/2048kb/machine.xml
+++ b/devices/pc/machine/compaq/deskpro386/vga/2048kb/machine.xml
@@ -12,7 +12,7 @@
-
+
diff --git a/disks/pc/library.xml b/disks/pc/library.xml
index 7a17dd6f4..52f6052cd 100644
--- a/disks/pc/library.xml
+++ b/disks/pc/library.xml
@@ -50,6 +50,7 @@
+ VGA Tests (Black Book)
Load
diff --git a/modules/diskdump/lib/diskdump.js b/modules/diskdump/lib/diskdump.js
index 070192aa1..1eb18fb52 100644
--- a/modules/diskdump/lib/diskdump.js
+++ b/modules/diskdump/lib/diskdump.js
@@ -1162,7 +1162,7 @@ DiskDump.prototype.addManifestInfo = function(fileInfo)
this.aManifestInfo.push(fileInfo);
};
-DiskDump.asTextFileExts = [".MD", ".ME", ".BAS", ".TXT", ".XML"];
+DiskDump.asTextFileExts = [".MD", ".ME", ".ASM", ".BAS", ".TXT", ".XML"];
/**
* isTextFile(sFileName)
diff --git a/tests/pc/vga/README.md b/tests/pc/vga/README.md
new file mode 100644
index 000000000..f41366a3b
--- /dev/null
+++ b/tests/pc/vga/README.md
@@ -0,0 +1,54 @@
+VGA Tests
+---
+
+To aid in the development of PCjs VGA support, I've started adding some VGA tests to the project. For now, the
+only "tests" are samples taken directly from [Michael Abrash's Graphics Programming Black Book](https://github.com/jeffpar/abrash-black-book).
+
+Abrash's book is available on many sites, but I'm partial to the Markdown version that [James Gregory](https://github.com/jagregory)
+has made available on GitHub, because (a) it's a brilliant way to share the text, and (b) it apparently has Abrash's blessing, so
+I feel more comfortable forking it, using it, and resharing it.
+
+The main reasons for my [fork](https://github.com/jeffpar/abrash-black-book): to make the book's
+images display properly on GitHub, and to extract and add assorted source code listings as I need them. Since that
+project's [/src](https://github.com/jeffpar/abrash-black-book/tree/master/src) folder contains just the book's text,
+I've added a [/code](https://github.com/jeffpar/abrash-black-book/tree/master/code) folder for the source code listings.
+The name of each source code file matches the name displayed in the text (eg, [L23-1.ASM](L23-1.ASM) is Listing 23.1
+from [Chapter 23](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-23.md)).
+
+I assume something similar was done on the CD-ROM that accompanied the Black Book, but since I don't have the original
+book or its CD-ROM, I'm extracting the source code directly from the Markdown text, and then "tabifying" it with 8-column
+tab stops.
+
+Development of PCjs VGA support has just begun (June 2015), so don't expect *anything* here to to run properly yet.
+
+---
+
+List of VGA Samples from [Michael Abrash's Graphics Programming Black Book](https://github.com/jeffpar/abrash-black-book):
+
+ * [Chapter 23](https://github.com/jeffpar/abrash-black-book/blob/master/src/chapter-23.md)
+ * [L23-1.ASM](https://github.com/jeffpar/abrash-black-book/blob/master/code/L23-1.ASM)
+
+---
+
+Also, I've updated the PCjs [Library](/disks/pc/library.xml) disk collection to include the following disk image:
+
+ VGA Tests (Black Book)
+
+But wait, you say, that *path* refers to a directory, not a disk image. And that's true; normally the *path* for a disk
+entry will refer to either an IMG file *or* a JSON-encoded IMG file. However, if the *path* ends with a slash, then it's
+assumed to be a directory, and so PCjs will ask the server to enumerate the contents of that directory and send back a
+JSON-encoded disk image containing all the files in that directory (including any subdirectories).
+
+Since the contents of this directory will probably be in flux for a while, I've opted for this approach. Once
+things settle down, I'll generate a JSON-encoded disk image containing a snapshot of this directory.
+
+I've updated a [Compaq DeskPro 386 Machine](/devices/pc/machine/compaq/deskpro386/vga/2048kb/) to use the
+[Library](/disks/pc/library.xml) disk collection and automatically load the above disk:
+
+