Non Intelligent (AMOS) Language Learner - Markov Chain Chatbot for CP/M NIALL is a faithful 8-bit recreation of the AMOS BASIC Markov chain chatbot, ported to C for the CP/M. You teach it sentences, it learns word transitions with weighted probabilities

NIALLCON.COM program is located on the N: drive in user area 2. To run this, look in the Internet Adapter or Headless menu and select Cloud CPM. After CPM loads and you are presented with a A:0> prompt, type the drive (N:), and then type the user area (user 2). If you type DIR, look for the COM file (NIALLCON.COM). Enter that filename at the prompt to execute the NIALL - Niall Adventures and Ports.

NIALL - Niall Adventures and Ports

These are all the CP/M Ports and utilities

All work with the NABU Native version as well as the CP/M versions.

Non Intelligent (AMOS) Language Learner — Markov Chain Chatbot for NABU and CP/M.

NIALL is a faithful 8-bit recreation of a 1990 AMOS BASIC Markov chain chatbot, ported to C for CP/M-80. You teach it sentences, it learns word transitions with weighted probabilities, and generates replies by walking the Markov chain.

Target Platforms

CP/M 2.2 — NABU, TRS-80 Model 4P, Kaypro II/10, Coleco ADAM, RomWBW, and compatible Z80 systems
NABU Native — homebrew binary using NABU-LIB (VDP display, RetroNET IA file storage)
CPU: Z80, 64KB address space
Compiler: z88dk with SDCC

CP/M Builds and Programs

File	Description
NIALL.COM	The chatbot
NIALLCHK.COM	Save file verifier
NIALLCON.COM	v3 → v4 save file converter
NIALLASC.COM	AMOS BBS ASCII → v4 importer
NIALL40.COM	40-col display (e.g. some terminals)
NIALL32.COM	32-col display (e.g. CloudCP/M NABU)

32-col display Title and help text are shortened to fit. Prompts use U: and N: to maximise reply space. Replies wrap at 29 characters (32 minus the 3-char N: prefix).

40-col display Title splits across lines. Help save/load lines shortened to fit. Replies wrap at 33 characters (40 minus the 7-char NIALL: prefix).

80-col display Standard layout unchanged. Replies wrap at 73 characters — only affects unusually long Markov-generated sentences.

Sample Data files File Format Words Description

NIALL.DAT v4 binary (CP/M) 8 Basic starter — a single taught sentence
NIALL2.DAT v4 binary (CP/M) 145 Small but functional dictionary
NIALL3.DAT v4 binary (CP/M) 299 Chat about NABU, TRS-80 and 80s/90s computers — good starting point
RETRO.DAT v4 binary (CP/M) 299 Retro computing themed dictionary (CP/M, v4)
RETROV5.DAT v5 binary (NABU) 1,215 Retro computing themed dictionary (NABU native, v5) — load directly on NABU