[bug]: Project 4 - Web IDE - CPU Emulator- Running Mult.tst and Fill.tst deletes user ROM input

[FlorianMiedtke]

Tool

CPU Emulator

Interface

Website (https://nand2tetris.github.io/web-ide)

What happened?

When I want to run the test files for project 4, they delete the contents of the ROM. This seems to happen because of the line 10 of Mult.tst

web-ide/projects/src/project_04/01_mult.ts

Line 21 in cd2963f

load Mult.asm,

This seems to load the default Mult.asm file of the Web IDE file system, which is always the empty default. An easy fix would be to just comment out this line, but I think this would ignore the underlying problem.

If you look at the hardware simulator, the code written there is saved to the Web IDEs file system. So when I reload the page, my changes are still there. In the CPU Emulator, the ROM is also cleared, when I reload the page. So the actual problem seems to be, that the user input in the ROM is not saved to the Web IDEs file system.

[amama22]

having the same problem. how did u manage to test it?

[FlorianMiedtke]

having the same problem. how did u manage to test it?

I just executed the defined test steps manually.

[jimmyvh]

Just ran into this issue myself, and found this bug after googling.
As a workaround, executing the fist step first, then filling out the asm code works, but it's an annoying workaround.
The real issue is that the asm code is not being saved.
If the file actually gets saved like it does for the hardware simulator, everything would work as intended, the load Mult.asm line included.

[gacarrillor]

Same issue here.

Duplicate of #551 and #543

[amama22]

Same issue here.

Duplicate of #551 and #543

Hey, if this helps, I realized after, in the assembler u have to load the asm file lol and fill that, and then when u load that file in the cpu emulator it will correctly open that same file.

[gacarrillor]

Same issue here.
Duplicate of #551 and #543

Hey, if this helps, I realized after, in the assembler u have to load the asm file lol and fill that, and then when u load that file in the cpu emulator it will correctly open that same file.

It works as a workaround, thanks!
I hope the issue can be fixed anyways, so that everybody can use it as expected.

[chids04]

can confirm this issue is still occuring