AverageDog

AverageDog, 4 months ago to books

T3X/0 is a self-hosting compiler for CP/M, DOS, and Unix. It self-compiles in 10mins on a 4MHz Z80. Its implementation is described in my recent book, "Write Your Own Retro Compiler".
Download: http://t3x.org/t3x/0/
Book: http://t3x.org/t3x/0/book.html
#compilers, #books, #dos, #cpm, #z80

AverageDog, 4 months ago to retrocomputing

NMH BASIC (http://t3x.org/nmhbasic/) is a tiny BASIC interpreter for the 8086 that I wrote in the mid-1990's. It runs in 12K bytes and includes a minesweeper game that runs on a TTY. Of course a 12K interpreter was an anachronism in the 90's, but it still was a fun project.
#retrocomputing, #basic, #compilers, #dos, #8086

AverageDog, 3 months ago to Lisp

There is now a hardcover edition of LISP from Nothing, because some people asked. See http://t3x.org/lfn/
Nothing new inside, just a hardcover version of the same book about minimal LISP and LISP in the age of mainframe computers.
#LISP, #eval, #MACLISP, #mainframes, #punchcards, #teletypes, #retrocomputing

LISP from Nothing back cover

AverageDog, 4 months ago to retrocomputing

Made an enclosure for my rc2014 computer (sc-114) from polystyrene and acrylic glass sheets. There are two mini-USB jacks for serial connections on the backside, both attached to FTDI adapters. Only drawback: you have to open the case to reset the system.
I am mostly using this computer to test my T3X/0 compiler and other Z80 programs on a real machine.
#retrocomputing, #cpm, #rc2014

AverageDog, 1 month ago to programming

This may very well be the most useless book I have ever written, and I don't even know why I did. I guess it is still better than getting drunk in a bar.
Anyway, it defines the #T3X programming language formally in terms of basic functions (zero, successor, identity, mu) and naive set theory. I have no idea why anybody would read such a book. Maybe you can give me some hints? :)
Or, in case you want to prove me wrong: http://t3x.org/t3x/0/formal.html
#programming, #semantics, #math, #futility

amoroso, 3 months ago to Lisp

In 1984, 40 years ago, Digital Press published the book "Common LISP: Reference Manual" by Guy L. Steele Jr. and others, more widely known as the first edition of "Common Lisp: The Language" or CLtL1. It was an early major milestone of a Lisp standardization process completed a decade later.

http://www.bitsavers.org/pdf/dec/_Books/_Digital_Press/Steele_Common_Lisp_Reference_Manual_1984.pdf

#CommonLisp #lisp #retrocomputing

AverageDog, 1 month ago to books

Now that I hold a copy of the book in my hands, I start to like it. Still no idea why I wrote it, though. Two copies sold so far in case you wonder if it was for the money. :)
http://t3x.org/t3x/0/formal.html
#books, #compilers, #math, #semantics

amoroso, 4 months ago to books

I'm happy to welcome to Mastodon @AverageDog Nils Holm, author of "Write Your Own Retro Compiler" and other great books on compilers, programming languages, Lisp, and more.

https://t3x.org/index.html

#compilers #books #lisp

nil, 1 month ago to random

I believe this makes me owner #2 of the #t3x programming language formal definition. My first inclination is to write a lisp for the tcode machine but given the author I feel this has already happened? Chapter 6 is very cool to see the variants of asm for each instruction for z80 8086 and ARMv6.