I have programmed by looking up op codes in a table on a sheet of paper and entering the hex codes into an EPROM programmer.
Did this in university in the very first week, quite a few people dropped out after that 😅
Ah yes, the great filter
You are.... Old?
Fucking ancient. This was for a Z80 based system using discreet logic for addressing and IO, constructed on a wire-wrapped board.
If you want some modern day fun with this, try the Zachtronics programming games; TIS-100, Shenzhen I/O, and Exapunks.
Or, my personal favorite I only discovered somewhat recently, try Turing Complete. You start by designing all your logic gates from just a negate gate IIRC. You eventually build up an ALU and everything else you need and then create your own computer. Then you define your own assembly language and have to write programs in your assembly language that run on the computer you've designed to complete different tasks. It's a highly underrated game, although it takes a certain type of person to enjoy.
Ah, memories. That was me on a Spectrum. It's all fun and games until you forget to save (to tape) and your code hangs the machine, losing everything.
Did the same in school on a Z80
When I was young, we didn't have hex codes, we only had 1 and 0s. One time we where all out of 1s, and I had to code a whole Database system with only 0s!
I once knew somebody who supposedly thought that ASM was high level.
ASM is high level. Real programmers use punch cards
Real programmers use a magnetized needle and a steady hand.
There's an emacs-command to do that.
No, the emacs command is for the butterfly
REAL programmers tap into the electron flow across the CPU and set bits in real time
Once met a man who said he loved assembly language because it was so much nicer than punch cards and FORTRAN, but C was OK too.
This was last year. In his defense though, he's been retired for years, used to work as a professor.
Wait until you learn about micro ops and processor internals. That somebody isn't as wrong as you think.
There is no way ASM is high level
It's a matter of perspective. To someone who's job is to write the system which interprets ASM, ASM is high level
Exactly. For every level of abstraction, the abstractor is the high level and the abstractee is the lower level. Those aren't real words perhaps, but you get what I'm saying. It's all relative along the chain of abstraction.
I am once again asking programmers to explain the joke
C was originally created as a "high-level" language, being more abstract (aka high-level) than the other languages at the time. But now it's basically considered very slightly more abstract than machine code when compared to the much higher level high-level languages we have today.
Other way around, actually; C was one of several languages proposed to model UNIX without having to write assembly on every line, and has steadily increased in abstraction. Today, C is specified relative to a high-level abstract machine and doesn't really resemble any modern processing units' capabilities.
Incidentally, coming to understand this is precisely what the OP meme is about.
I'd say much more highly abstracted than necessarily better (I know plenty of people who despise js and wouldn't call it better).
To add on to @azdle@news.idlestate.org 's comment, "High Level" in terms of programming languages means further away from how the computer processes things and "Low Level" means very similar to how machines process things. For example, binary and hexadecimal (16 bit) machine code such as "assembly language" are both low level.
Imagine if program interpreters were building blocks, then 6 layers of abstraction would be very tall or higher level.
This is pedantic, but assembly languages get "assembled" to machine code. This is somewhat similar to higher level languages being "compiled," which eventually becomes assembly which gets assembled. The major reason why these are different is because a compiler changes the structure of the code. Assembly is a direct mapping to instructions. It just converts the text into machine code directly, which is why it's easy to go from machine code to assembly but decompiling doesn't give you identical results to the original source code.
Also, binary and hexadecimal are just different ways to view the same binary data and aren't different things. There is only "machine code" which is a type of binary data but you can view binary with any arbitrary base, though obviously powers of 2 work better.
When I learnt programming (back in early 2000s) the textbook said C is a high level 3rd generation language with 4th gen languages being something higher (I don't remember what examples were given specifically). This is back when the java applets and action script for flash were the hot things. How I miss the days without the world being cursed by JS.
I mean, C is a high level language? Now, sure, C isn't a super expressive language and every C statement compiles to very few assembly instructions comparatively speaking, but it has a whole lot of stuff that assembly doesn't have. Like nice loops and other control structures and such, and not worry about which processor registers are used.
But quiche is tasty!
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