b9 | An educational JS virtual machine based on Eclipse OMR | Interpreter library

by b9org C++ Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | b9 Summary

b9 is a C++ library typically used in Utilities, Interpreter applications. b9 has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

An educational JS virtual machine based on Eclipse OMR

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Quality

Security

License

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Support

b9 has a low active ecosystem.

It has 40 star(s) with 24 fork(s). There are 10 watchers for this library.

It had no major release in the last 6 months.

There are 47 open issues and 26 have been closed. On average issues are closed in 24 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of b9 is current.

Quality

b9 has 0 bugs and 0 code smells.

Security

b9 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

b9 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

b9 is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

b9 releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

It has 149 lines of code, 0 functions and 14 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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b9 Key Features

No Key Features are available at this moment for b9.

b9 Examples and Code Snippets

No Code Snippets are available at this moment for b9.

Community Discussions

Trending Discussions on b9

VBA - Swapping cells until condition is met

How to use a loop to work out a model through several variables in R

User based encoding/convert with its interaction in pandas

Why does the thread sanitizer complain about acquire/release thread fences?

Why do I get a DoubleFault when I set a break point on IA32_LSTAR MSR for SYSCALL on windows 64 bit with a kernel debugger? (KVASCODE section)

Calculate code size (number of opcode bytes) between two labels in C

How to overwrite operand value of x86 `movq` instruction via c pointer in linux kernel

Logical function across multiple columns using "any" function

Most correct way to join values from two formulas where each row from first formula needs to join all values from second formula and so on

Make objdump use an operand-size suffix like l on every mnemonic, even when it's not ambiguous?

QUESTION

VBA - Swapping cells until condition is met

Asked 2022-Apr-17 at 11:27

I'm new to vba and have trouble with swapping cells through a conditional loop.

I have a table which looks like

and want to transform it (move numeric cells to column b and remove non-numeric values) into

Right now I have the code

...

ANSWER

Answered 2022-Apr-14 at 22:38

… It's doing exactly what you told it to.

You have a Do Until check on B9, where you swap it with cell C9. So, it starts as "ee", and you swap them. Now it is "e", so you swap them. It's "ee" again, so it swaps them again. Repeat ad nauseum

You need to rethink that Do Until. A crude Brute Force approach would be to Delete the cell with the "shift left" parameter. Another method would be to put the For k = 2.. loop inside the Do Until loop, rather than the other way around.

Source https://stackoverflow.com/questions/71878239

QUESTION

How to use a loop to work out a model through several variables in R

Asked 2022-Mar-13 at 08:58

Here my data for boosting

...

ANSWER

Answered 2022-Mar-11 at 09:33

Are you looking for something like the following?

Source https://stackoverflow.com/questions/71435998

QUESTION

User based encoding/convert with its interaction in pandas

Asked 2022-Jan-23 at 19:54

I have this dataframe which looks like this:

user_id : Represents user

question_id : Represent question number

user_answer : which option user has opted for the specific question from (A,B,C,D)

correct_answer: What is correct answer for that specific question

correct : 1.0 it means user answer is right

elapsed_time : it represents time in minutes user took to answer that question

timestamp : UNIX TIMESTAMP OF EACH INTERACTION

real_date : I have added this column and converted timestamp to human date & time

** user_*iD *** ** question_*id *** ** user_*answer *** ** correct_answer ** ** correct ** ** elapsed_*time *** ** solving_*id *** ** bundle_*id *** timestamp real_date 1 1 A A 1.0 5.00 1 b1 1547794902000 Friday, January 18, 2019 7:01:42 AM 1 2 D D 1.0 3.00 2 b2 1547795130000 Friday, January 18, 2019 7:05:30 AM 1 5 C C 1.0 7.00 5 b5 1547795370000 Friday, January 18, 2019 7:09:30 AM 2 10 C C 1.0 5.00 10 b10 1547806170000 Friday, January 18, 2019 10:09:30 AM 2 1 B B 1.0 15.0 1 b1 1547802150000 Friday, January 18, 2019 9:02:30 AM 2 15 A A 1.0 2.00 15 b15 1547803230000 Friday, January 18, 2019 9:20:30 AM 2 7 C C 1.0 5.00 7 b7 1547802730000 Friday, January 18, 2019 9:12:10 AM 3 12 A A 1.0 1.00 25 b12 1547771110000 Friday, January 18, 2019 12:25:10 AM 3 10 C C 1.0 2.00 10 b10 1547770810000 Friday, January 18, 2019 12:20:10 AM 3 3 D D 1.0 5.00 3 b3 1547770390000 Friday, January 18, 2019 12:13:10 AM 104 6 C C 1.0 6.00 6 b6 1553040610000 Wednesday, March 20, 2019 12:10:10 AM 104 4 A A 1.0 5.00 4 b4 1553040547000 Wednesday, March 20, 2019 12:09:07 AM 104 1 A A 1.0 2.00 1 b1 1553040285000 Wednesday, March 20, 2019 12:04:45 AM

I need to do some encoding , I don't know which encoding should I do and how?

What i need a next dataframe to look like this :

user_id b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11 b12 b13 b14 b15 1 1 2 0 0 3 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 2 0 0 0 0 3 3 0 0 1 0 0 0 0 0 0 2 0 3 0 0 0 104 1 0 0 2 0 3 0 0 0 0 0 0 0 0 0

As you can see with the help of timestamp and real_date ; the question_id of each user is not sorted, The new dataframe should contain which of the bundles user has interacted with, time-based sorted.

...

ANSWER

Answered 2022-Jan-21 at 10:51

I think you are looking for LabelEncoder. First import the library:

Source https://stackoverflow.com/questions/70751715

QUESTION

Why does the thread sanitizer complain about acquire/release thread fences?

Asked 2022-Jan-04 at 16:06

I'm learning about different memory orders.

I have this code, which works and passes GCC's and Clang's thread sanitizers:

...

ANSWER

Answered 2022-Jan-04 at 16:06

The thread sanitizer currently doesn't support std::atomic_thread_fence. (GCC and Clang use the same thread sanitizer, so it applies to both.)

GCC 12 (currently trunk) warns about it:

Source https://stackoverflow.com/questions/70542993

QUESTION

Why do I get a DoubleFault when I set a break point on IA32_LSTAR MSR for SYSCALL on windows 64 bit with a kernel debugger? (KVASCODE section)

Asked 2021-Nov-26 at 23:41

TLDR: Why can you set a break point at windows kernel .text section but not on the KVAS section?

So afaik IA32_LSTAR is supposed to hold the address of KiSystemCall64/KiSystemCall64Shadow, so right before a syscall was made on ntdll I dumped it, and set a breakpoint on it (KiSystemCall64Shadow) upon tracing with p on windbg I get a bugcheck(DOUBLE_FAULT), why is that?

I should mention that this whole process was inside a VM so I could kernel-debug the application

output of !analyze -v

...

ANSWER

Answered 2021-Nov-26 at 23:41

kernel mode interrupt entries check in which mode was interrupt - user or kernel, by checking lowest bit of CS on stack (CPL) and execute SWAPGS instruction only in case iterrupt was from user mode. otherwise in GS assume already correct value - in user mode GS point to TEB and in kernel mode to KPCR. example of

Source https://stackoverflow.com/questions/70059375

QUESTION

Calculate code size (number of opcode bytes) between two labels in C

Asked 2021-Aug-29 at 02:50

Based upon this MSVC Windows disassembly, is there a method to determine the number of bytes between the labels jmp_code_start and jmp_code_finish? Manually counting the opcode bytes B8 D0 10 36 00 2D C3 00 00 00 89 45 FC FF 55 FC shows there are 16 bytes but that's tedious. Perhaps there's a better technique?

...

ANSWER

Answered 2021-Aug-28 at 16:34

There is no way to do this in standard C.

But in practice - you can usually accomplish this with code like:

Source https://stackoverflow.com/questions/68966173

QUESTION

How to overwrite operand value of x86 `movq` instruction via c pointer in linux kernel

Asked 2021-Aug-22 at 05:17

Currently I have written a code segment using assembly on one page pageA in linux kernel.The code is

...

ANSWER

Answered 2021-Aug-22 at 05:17

1000:   48 c7 c2 00 00 00 00    mov    $0x0,%rdx
1007:   48 be 00 60 fc f7 ff    movabs $0x7ffff7fc6000,%rsi
100e:   7f 00 00 
1011:   48 b9 00 30 c8 6b 01    movabs $0x19016bc83000,%rcx

Source https://stackoverflow.com/questions/68857570

QUESTION

Logical function across multiple columns using "any" function

Asked 2021-Aug-13 at 20:08

I would like to run a logical operation (multiple conditions) across many columns. I have written a query which is working fine. However, I want to shorten my code as I have to write several queries.

I have tried shortening the query using "any" and "brackets". However, the second query is running fine but giving me a different answer. Does "any" function work on multiple columns?

Here are my conditions -

any of the column (B2 to B5) has 1 & B1 <=2, then "Noissue"
any of the column (B2 to B5) has -99 & B1 <=2, then "Noissue"
B1 ==3, then "Noissue"
Rest is all issue

Participate B1 B2 B3 B4 B5 Query1 Query2 3 -1 -1 -1 -1 -1 Noissue Noissue 1 -1 1 -1 -1 1 Noissue Noissue 1 -1 -1 -1 -1 -1 Issue Noissue 2 -1 1 1 -1 1 Noissue Noissue 2 1 1 1 1 -1 Noissue Noissue 1 -99 -99 -99 -99 -99 Noissue Noissue

I appreciate if anyone help me on reducing the code lines using different functions.

...

ANSWER

Answered 2021-Jul-30 at 12:39

We could uses across with case_when

Source https://stackoverflow.com/questions/68590887

QUESTION

Most correct way to join values from two formulas where each row from first formula needs to join all values from second formula and so on

Asked 2021-Aug-03 at 16:10

The formula that is in A1 to create the alphabet sequence is this:

...

ANSWER

Answered 2021-Aug-03 at 16:00

try:

Source https://stackoverflow.com/questions/68639171

QUESTION

Make objdump use an operand-size suffix like l on every mnemonic, even when it's not ambiguous?

Asked 2021-Aug-03 at 04:15

Today, I found out about using objdump in Linux to find the disassembled code of programs in At&t syntax. While using objdump, the disassembled code looked fine but lacked the 'l' ending after the mnemonic (It should be "movl" not "mov"). Is there any way I can configure objdump to fix this issue?

The current disassembled program generated:

...

ANSWER

Answered 2021-Aug-03 at 04:15

To clutter your output with redundant suffixes even when it's implied by a register operand, use

Source https://stackoverflow.com/questions/68630162

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install b9

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