Update docs

readme.md

@@ -15,9 +15,9 @@ for the z80-based TI-84 Plus monochrome graphics calculator. It runs in the
 open `Asm(prgm)` interface provided in the calculator's `CATALOG` menu.
 It uses the TI-84's on-board Z80 processor.
 
-The reference application implements parallel _blinky_ and _hello_-_world_ test-shows.
+The reference application implements parallel _blinky_ and _hello_-_world_ text-shows.
 A minimalistic cooperative multitasking scheduler controls
-the presentation of the associated ASCII-text messages.
+the presentations of the associated ASCII-text messages.
 
 The text-shows _ON_/_OFF_ and _hello_/_world_ are written on the calculator screen.
 Text is used since there is no actual LED present on the calculator-target system.
@@ -43,7 +43,7 @@ There is minimal use of assembly for startup and to interface with
 
 Execution:
   - After build, locate `bin/refapp.8xp`.
-  - Drag `refapp.8xp` onto the calculator using the standard method with [TI Connect version 4](https://education.ti.com/en/software/details/en/B59F6C83468C4574ABFEE93D2BC3F807/swticonnectsoftware). Important: use version 4 for the TI-84 Plus.
+  - Drag `refapp.8xp` onto the calculator using the standard method with [TI Connect version 4](https://education.ti.com/en/software/details/en/B59F6C83468C4574ABFEE93D2BC3F807/swticonnectsoftware). Important: Use version 4 for the TI-84 Plus.
   - The on-calculator name of the program is `REFAPP`.
   - To start the program, use the usual `Asm(prgm)` option found in the `CATALOG` menu and select the `REFAPP` program.
   - To exit the blinky _ON_/_OFF_ show, press the enter key.
@@ -60,9 +60,10 @@ C-runtime initialization (i.e., static initialization prior to the call of `main
 is supported with the file [crt0.s](./src/startup/crt0.s) in the `startup` directory.
 
 The build system:
-  - The build system uses GNUmake with a straighforward [Makefile](./build/Makefile).
-  - The build system is supported on both `Win*` and `*nix`. Ported `*nix` tools support the `Win*`-build.
-  - Build results including HEX-File and the on-calculator image `refapp.8xp` will be placed in the `bin`-directory.
+  - The build system uses GNUmake with a straighforward [`Makefile`](./build/Makefile).
+  - The build system is supported on both `Win*` and `*nix`.
+  - The `Win*`-build requires a small selection of ported `*nix` tools. These are included in the [`wbin`](./build/tools/UnxUtils/usr/local/wbin) directory.
+  - Build results including HEX-File and the on-calculator image `refapp.8xp` are placed in the `bin`-directory.
 
 ### Build on `Win*`
 
@@ -98,22 +99,22 @@ Continuous integration is performed on GHA using an ubuntu-latest runner.
 The [workflow run](./.github/workflows/ti84-ref_app.yml)
 builds the application and verifies the presence of `bin/refapp.8xp`.
 
-## Aditional Information
+## Aditional Details
 
 ### Origins (and Reservations)
 
-Origins
   - This project has been inspired by and influenced by numerous previous works, including (but not limited to) the [azertyfun/LibTI](https://github.com/azertyfun/LibTI) project.
   - The aforementioned [project](https://github.com/azertyfun/LibTI) was ground-breaking and excellent.
 
 Please do, however, use at your own discretion and observe also
-the [license](./LICENSE) details.
+the [license](./LICENSE) details. This project is not in any way
+affiliated with Texas Instruments Inc, or any of its subsidiaries,
+including the educational products division.
 
 Some of this software has been reverse engineered
 from other projects or terse technical notes.
 In addition, the software actively writes to calculator
 _ports_, such as port `0x40` and port `0x41`.
-
 Personally. I do not consider this to be a $100\\%$ sound basis
 for project reliability and/or stability.
 
@@ -123,9 +124,14 @@ It provides a basis that seems to adhere to the established,
 common rules of modern C. Larger projects could be built or modelled
 from this.
 
+### References
+
+  - _TI_-_83_ _Plus_ _System_ Routines_ _Third_ Release_ (Jan. 25, 2002), located [here](https://education.ti.com/html/eguides/discontinued/computer-software/EN/SDK-TI-83-System-Routines_EN.pdf)
+  - _SDCC_ _Compiler_ _User_ _Guide_, SDCC 4.4.0, Revision 14549 (Dec. 20, 2023), located [here](https://sdcc.sourceforge.net/doc/sdccman.pdf)
+
 ### Licensing
 
   - The source code written for this repo (in the [`src`](./src)) directory is licensed under [_The_ _Unlicense_](./LICENSE).
-  - `Win*` ported `*nix` tools (including `cp.exe`, `echo.exe`, `mkdir.exe`, `mv.exe` and `rm.exe`) originate from [UnxTools](https://sourceforge.net/projects/unxutils) and include their own [distribution statements](./build/tools/UnxUtils).
-  - The `Win*`-ported `objcopy.exe` originates from _nuwen_'s specially-built [standalone MinGW](https://nuwen.net/mingw.html).
+  - `Win*`-ported `*nix` tools in [`wbin`](./build/tools/UnxUtils/usr/local/wbin) originate from [UnxTools](https://sourceforge.net/projects/unxutils) and include their own [distribution statements](./build/tools/UnxUtils).
+  - The `Win*`-ported `objcopy.exe` originates from Steven T. Lavavej's [`MinGW Distro`](https://nuwen.net/mingw.html).
   - The `Win*`-ported GNUmake is taken from [`ckormanyos/make-4.2.1-msvc-build`](https://github.com/ckormanyos/make-4.2.1-msvc-build).