The Quest for Tetris

12:32 AM

So weird, QFTASM doesn't work on Chrome for iOS either...

12:48 AM

@Mego Even better: I can just change the database entry.

1:01 AM

reddit.com/r/programming/comments/701tzd/… Should we point this guy at StackOverflow and answer the question ourselves? :P

@PhiNotPi I was able to reproduce the bug easily.

1:20 AM

@El'endiaStarman there might be multiple bugs?

Maybe? I was able to stick it to the wall on both sides.

1:39 AM

@El'endiaStarman uhh... the code in the permalink is the old code apparently

new permalink: play.starmaninnovations.com/qftasm/#PYhswCeXrg

Avery

hiiii

I was mostly wondering how the rotation system works

Is it ARS? (Sorry didn't try it out myself yet)

@PhiNotPi I can confirm this one works.

2:01 AM

@PhiNotPi Could Cogol benefit from a pre-initialized RAM as well? I definitely see some stack initialization at the beginning

probably not as much as GCC will

@Avery I believe it's Sega rotation?

@PhiNotPi Surgery complete!

Avery

@quartata hm, interesting

I'll be honest, I'm not much of a Tetris enthusiast so I'm probably wrong

I recommend trying it out yourself in the QFTASM interpreter

play.starmaninnovations.com/qftasm/#PYhswCeXrg

scroll down to the ram display

and put in for the addresses to display "3,5-31"

then run and watch the display

control is using the "direct write to ram"

put 1 in for the address

value     motion
   1      counterclockwise rotation
   2      left
   4      down (soft drop)
   8      right
  16      clockwise rotation

there's no wall kicks if that's what you're wondering at any rate

More simply: click this: play.starmaninnovations.com/qftasm/#jllHdnBGSP , hit "Run", scroll down to the RAM display, and then follow quartata's instructions after that.

oh shoot that was the old permalink

we should update the post

2:13 AM

No need.

@El'endiaStarman Maybe make the ROM display collapsible by the way

I updated the program that the permalink points to in the database so everyone that clicks on that permalink will now have the bug-free code.

it takes up a ton of vertical space

@El'endiaStarman ahh nice

@quartata I've considered that, yeah.

2:34 AM

Petition to remove rep-cap.

Anonymous

@PhiNotPi Seconded :P

nuu

can't have el'endia overtaking me in rep

@quartata Your days are numbered.

n-nuuu

This is what I found for truth machine btw:

. SUB A1 2 0;
. MNZ 0 0 0;

There's several ways of doing it with two instructions I suspect

I just picked the strangest one

@quartata how are you defining STDIN/OUT?

2:44 AM

Input in address 1

basically the same as taking input from a variable

which I allowed if there's no other way

2 instructions is 14.5 bytes

oh wait a second

I'm so dumb

how are we going to "output" writing to a register isn't good enough

Maybe I could set each address to 1 one at a time?

I guess truth machine is a bad pick

> truth machine is a bad pick

lol

I guess I'll try to golf primes then instead

the trouble with that is no multiplication

I mean multiplication is easy to do but it's long

Flashback to architecture design, where we had the idea for I/O ports for the processor.

Anonymous

@PhiNotPi That's still not a terrible idea

Anonymous

We have spare opcodes

2:54 AM

We could hook the busses up to different sink options in the interpreter perhaps

The original idea was to have the ports memory-mapped with RAM.

Using the space opcodes could also work.

actually

This could be useful for Pong

If we make it so that in the interpreter you could either redrect the busses to a console OR to a Websocket, it could make for better controls and online multiplayer

Anonymous

@quartata That's a good idea

Anonymous

We'd still want the ports represented in the pattern, but the interpreter can watch those and do special things with them

Obviously the computer can't do that in practice but in theory the busses could be hooked up to other computers

all we need is @KZhang

Anonymous

3:01 AM

So for Pong, we could work on networking as the next big step, and then showcase 2 QFT computers playing Pong against each other

!!

Yeah I'm liking this

I'm not 100% on board with ports. Could someone tell me what should happen for ports?

Oh gosh, websockets.

So.. memory mapping or special instructions?

Anonymous

We would only need websockets for remote play. For the Pong demonstration, we could have 2 QFT computers connected in the same pattern. One for the player, and one for the AI.

3:05 AM

I'm personally against memory mapping

Anonymous

I think special instructions would be better in the long run

We technically could do both

SLZ and SNZ for sending

Anonymous

RLZ and RNZ for receiving

I was thinking just GET and AVA for how much is available

This is the part where KZhang tells us that buffered IO is way too hard

3:10 AM

I mean, we could just use a single synchronizer

The issue with that is if too much data is sent, some might get lost

That's OK IMO

The question is how big a buffer is feasible

I could do it so that only the most recent piece of data is stored

Although, I would need to figure out something else for buffering

It might be doable

You could perhaps provide a way for a clock signal of one computer to pause and wait for the other computer.

Anonymous

@El'endiaStarman I think that's a bit too complicated. The computers will be running in sync anyway, so we can just program/design around that.

Anonymous

Essentially we're building one big computer made out of two smaller computers. The same design principles that we employed for the original computer will still work for this.

3:19 AM

@Mego Not with the signal taking different amounts of time through the ROM. (It does take longer to get the last instruction, doesn't it?)

Anonymous

@El'endiaStarman I believe so, but we can manage that through software (especially with PIC)

Anonymous

Idea: introduce a delay component to the ROM so that every instruction takes the same amount of time to fetch, regardless of the address

Hrmmmmmm

Blocking will be tough too

We'd need a lock

We should probably do the interpreter first

@El'endiaStarman I was thinking a drop down menu that controls where the input bus reads from and where the output bus writes to

1 would be a simple console you could type into

2 would be the websocket

3 could be reading from a file (not for output obviously)

3:49 AM

Also yay I just realized I've been doing this wrong: reg doesn't mean a hard register

Our GH repos are a total mess :/

Anonymous

4:13 AM

@quartata Yep, I've been thinking about cleaning them up

7:51 AM

It would be cool to have it so we can have a console interface for the project

balpha

9:43 AM

@Mego I wouldn't be surprised if that happens.

@quartata expect some new traffic

:D

Feels so good to have all these people acknowledging us

10:52 AM

I like how the site analytics show where links to the project were posted

ASCII-only

@muddyfish nuuuuu I don't have enough rep to see

@ASCII-only ^

ASCII-only

11:17 AM

> yahoo 0

Lol

Martin Ender

11:39 AM

I'm surprised you guys haven't made the news yet.

I wouldn't really expect that

Martin Ender

the GoL clock did

it did?

Martin Ender

well niche news, obviously. but still good traffic

hackaday.com/2017/03/11/a-clock-created-with-conways-life

I think that wasn't the only one

1:39 PM

I'm surprised at how many Python modules there are for reading ELF...

decisions

4:46 PM

@quartata ELF?

Executable and Linkable Format

In computing, the Executable and Linkable Format (ELF, formerly named Extensible Linking Format), is a common standard file format for executable files, object code, shared libraries, and core dumps. First published in the specification for the application binary interface (ABI) of the Unix operating system version named System V Release 4 (SVR4), and later in the Tool Interface Standard, it was quickly accepted among different vendors of Unix systems. In 1999, it was chosen as the standard binary file format for Unix and Unix-like systems on x86 processors by the 86open project. By design, ELF...

Anonymous

5:00 PM

@El'endiaStarman The best Will Ferrell movie

Every time I google it I swear

I have to do "elf format" or "elf object"

If I just do Elf I see Will Ferrell's smug face every time

Should I add a link to this chatroom to the overview post?

I think that would be a good idea for people with questions, although most people seem to be finding it on their own