Updated notes on 6502 assembler

apps/c1p/6502/README.md

@@ -1,10 +1,10 @@
 ---
 layout: page
-title: Challenger 1P Machine-Language (6502) Applications
+title: Challenger 1P Machine-Language Applications
 permalink: /apps/c1p/6502/
 ---
 
-Challenger 1P Machine-Language (6502) Applications
+Challenger 1P Machine-Language Applications
 ---
 
 The project contains the following 6502 machine-language tests:

apps/c1p/6502/jeffpar/README.md

@@ -1,10 +1,10 @@
 ---
 layout: page
-title: Challenger 1P Machine-Language (6502) Programs
+title: Challenger 1P Machine-Language Programs
 permalink: /apps/c1p/6502/jeffpar/
 ---
 
-Challenger 1P Machine-Language (6502) Programs
+Challenger 1P Machine-Language Programs
 ---
 
 The project contains the following 6502 machine-language programs written by [Jeff Parsons](https://twitter.com/jeffpar)

apps/c1p/6502/jeffpar/assembler/README.md

@@ -6,23 +6,36 @@ redirect_from:
   - /pubs/c1p/programming/
 ---
 
-6502 ASSEMBLER/DISASSEMBLER
+6502 Assembler/Disassembler
 ---
+By Jeff Parsons
 
-This "source code listing" from June 19, 1980 is for the first piece of software I sold, right around the
+The "source code" listing below from June 19, 1980 is for the first piece of software I sold, right around the
 time I graduated from high school.  I had had my Ohio Scientific Challenger 1P for maybe a year when I decided
 to write something that would make it easier to write "machine language" programs than the incredibly tedious
-HEX monitor that was built into the C1P.  And so my **6502 ASSEMBLER/DISASSEMBLER** was born, with full-screen
+HEX monitor that was built into the C1P.  And so my [6502 Assembler/Disassembler](ASSEMBLER-4K.json) was born,
-editor, assembler, and disassembler.
+with full-screen editor, assembler, and disassembler.
+
+There were two versions, one for each of the standard Challenger 1P memory configurations:
+
+- [6502 Assembler/Disassembler for 4K C1P](ASSEMBLER-4K.json)
+- [6502 Assembler/Disassembler for 8K C1P](ASSEMBLER-8K.json)
 
 One of the conditions of the sale, however, was that I provide a "source code" listing.  I don't think the buyer
 understood that I had essentially written the program in machine language -- because that's how I had to enter it
 into the machine.  Maybe *some* lucky C1P users had disk drives and editors and assemblers, but I had none of those
-of things.  I had never even used tools like that before, which is why the **6502 ASSEMBLER/DISASSEMBLER** is a
+of things.  I had never even used tools like that before, which is why the [6502 Assembler/Disassembler](ASSEMBLER-4K.json)
-bit of an odd duck.  I'll post some screenshots and a demo eventually, and you'll see what I mean.
+is a bit of an odd duck.  I'll post some screenshots and a demo eventually, and you'll see what I mean.
 
 Anyway, to satisfy the buyer, I sat down at my old manual typewriter and banged out my version of a "source
-code" listing.  I produced it mostly by using the program to disassemble itself, combined with information
+code" listing.  I produced it mostly by using the program to disassemble itself, combined with information from
-from hand-written notes (which I may still have somewhere).  Here it is, many decades later, for your amusement.
+hand-written notes (which I may still have somewhere).
+
+Here it is, many decades later, for your amusement.
 
 [<img src="http://archive.pcjs.org/apps/c1p/6502/jeffpar/assembler/thumbs/OSI_Assembler-Disassembler_Listing-thumb.jpg" width="200" height="260" alt="6502 Disassembler Listing (by Jeff Parsons, June 1980)"/>](http://archive.pcjs.org/apps/c1p/6502/jeffpar/assembler/pdfs/OSI_Assembler-Disassembler_Listing.pdf)
+
+NOTE: Even though the "source code" listing was based on the 8K version, it more closely resembles the
+[4K version](ASSEMBLER-4K.json), because the [8K version](ASSEMBLER-8K.json) I originally located appears to be
+an older vintage (4/1980 instead of 6/1980, if the embedded dates are correct).  However, even the 4K version
+probably doesn't align perfectly with the listing, because it appears to be *newer* than the listing (9/1980).

devices/c1p/machine/README.md

@@ -15,4 +15,9 @@ Here are some sample C1P Machine Configurations:
 * [8kb "Server Array" Demo](8kb/array/)
 * [32kb with Diskette Support](32kb/)
 
-See the [C1Pjs Documentation](/docs/c1pjs/) for operational details of our Challenger 1P emulator.
+See the [C1Pjs Documentation](/docs/c1pjs/) for operational details of the emulator.
+
+Browse our collection of [Challenger 1P Applications](/apps/c1p/), which come in two flavors:
+
+- [BASIC](/apps/c1p/BASIC/)
+- [6502 Machine-Language](/apps/c1p/6502/)

docs/README.md

@@ -32,7 +32,7 @@ Our [Publication Archive](/pubs/) includes these PC-related resources:
 * [Reference Manuals](/pubs/pc/reference/)
 * [Software User and Development Guides](/pubs/pc/software/) (eg, [DOS](/pubs/pc/software/dos/), [OS/2](/pubs/pc/software/os2/), [Windows](/pubs/pc/software/windows/))
 
-And publications related to Ohio Scientific's 6502-based Challenger 1P:
+And publications related to Ohio Scientific's 6502-based [Challenger 1P](/devices/c1p/machine/):
 
 * [Datasheets](/pubs/c1p/datasheets/)
 * [Programming Guides/Samples](/pubs/c1p/programming/)