Change how big is xanvicos.png

I just wrote something new and corrected some errors

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: 'Bug :'
+labels: bug
+assignees: VinceAle7082
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - XanvicOS version: [e.g. 0.1-pr1]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest a feature you want added into XanvicOS
+title: 'Feature : '
+labels: enhancement
+assignees: VinceAle7082
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/vulnerability.md

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+---
+name: Vulnerability
+about: Create a report of a vulnerability to help us improve
+title: Vulnerability
+labels: vulnerability
+assignees: VinceAle7082
+
+---
+
+**Describe the bug**
+A clear and concise description of what the vulnerability is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Desktop (please complete the following information):**
+ - XanvicOS version: [e.g. 0.1-pr1]
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**How is the vulnerability dangerous?**
+This vulnerability is number/10
+
+**Additional context**
+Add any other context about the problem here.

.gitignore

@@ -1 +1,3 @@
 build/
+*.err
+.vscode

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, caste, color, religion, or sexual
+identity and orientation.
+
+We pledge to act and interact in ways that contribute to an restpectful, open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, experiences, and culture
+* Giving and gracefully accepting constructive feedback, or any feedback in general
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience, because we are just humans.
+* Focusing on what is best not just for us as individuals, but for the overall
+  community
+
+Examples of unacceptable behavior include:
+
+* The use of too much sexualized language or imagery, and sexual attention or advances of
+  any kind
+* Insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email address,
+  without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official email address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+vinceale7082@vinceale7082.is-a.dev or vinceale7082@gmail.com
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology will be requested, unless it's not that big of a deal.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series of
+actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or permanent
+ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within the
+community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.1, available at
+[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
+
+Community Impact Guidelines were inspired by
+[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
+
+For answers to common questions about this code of conduct, see the FAQ at
+[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
+[https://www.contributor-covenant.org/translations][translations].
+
+[homepage]: https://www.contributor-covenant.org
+[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
+[Mozilla CoC]: https://github.com/mozilla/diversity
+[FAQ]: https://www.contributor-covenant.org/faq
+[translations]: https://www.contributor-covenant.org/translations

CONTRIBUTING.md

@@ -0,0 +1,39 @@
+
+# What we want
+
+XanvicOS is this little project that I write because I want to explore OS developing, and maybe make some friends.
+So, I want that everyone in this project we'll respect each other, because without respect nothing can be done.
+This project isn't nothing serius, just a hobby project.
+
+# Here is what you can't do
+
+## Violate the license
+
+XanvicOS has a license, the GPLv3 license. If has been chosen by the author of something, it has been chosen for a reason. If you violate it you don't respect the idea of the creator about his code.
+So, in respec of the author, don't violate it.
+
+## Violate the Code of Conduct
+
+Pretty much for the same reason as the license: it exist, it has been chosen, please respect the author and what he wants.
+
+## Hurt and/or harass someone
+
+If you don't understand why, we DON'T need more people like you. As I already wrote in "What we want", we need to respect each other, so let's do it, no?
+
+## Do something stupid
+
+"Doing something stupid" means a lot, by don't knowing what you are doing, to commit crimes. But it doesn't mean you can't make some errors here and there, we are humans after all.
+
+# Here is what you need to do
+
+## Respect each other
+
+As I already said, this project is built off the idea of respecting each other while contributing. Without respect nothing can be done.
+
+## Don't troll (too much)
+
+You can make some trolls, but you can't make like 100 pull request about deleting all the code and call it "modernize the code"
+
+## Think before doing
+
+Self-explenatory, before doing something, think about what can be done better. If you can't think of anything better, then do it

LICENSE.md

@@ -0,0 +1,675 @@
+# GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+## Preamble
+
+The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom
+to share and change all versions of a program--to make sure it remains
+free software for all its users. We, the Free Software Foundation, use
+the GNU General Public License for most of our software; it applies
+also to any other work released this way by its authors. You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you
+have certain responsibilities if you distribute copies of the
+software, or if you modify it: responsibilities to respect the freedom
+of others.
+
+For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
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+
+Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+Some devices are designed to deny users access to install or run
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+manufacturer can do so. This is fundamentally incompatible with the
+aim of protecting users' freedom to change the software. The
+systematic pattern of such abuse occurs in the area of products for
+individuals to use, which is precisely where it is most unacceptable.
+Therefore, we have designed this version of the GPL to prohibit the
+practice for those products. If such problems arise substantially in
+other domains, we stand ready to extend this provision to those
+domains in future versions of the GPL, as needed to protect the
+freedom of users.
+
+Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish
+to avoid the special danger that patents applied to a free program
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+
+The precise terms and conditions for copying, distribution and
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+
+## TERMS AND CONDITIONS
+
+### 0. Definitions.
+
+"This License" refers to version 3 of the GNU General Public License.
+
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+An interactive user interface displays "Appropriate Legal Notices" to
+the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
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+The "source code" for a work means the preferred form of the work for
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+
+Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions; the
+above requirements apply either way.
+
+### 8. Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+### 9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run
+a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+### 10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+### 11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+### 13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in
+detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU General Public
+License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that numbered version or
+of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of the GNU General Public
+License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU General Public License can be used, that proxy's public
+statement of acceptance of a version permanently authorizes you to
+choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+## How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+        <program>  Copyright (C) <year>  <name of author>
+        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+The hypothetical commands \`show w' and \`show c' should show the
+appropriate parts of the General Public License. Of course, your
+program's commands might be different; for a GUI interface, you would
+use an "about box".
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
+applications with the library. If this is what you want to do, use the
+GNU Lesser General Public License instead of this License. But first,
+please read <https://www.gnu.org/licenses/why-not-lgpl.html>.

Makefile

@@ -15,11 +15,10 @@ immagine_floppy: $(BUILD_DIR)/main_floppy.img
 
 $(BUILD_DIR)/main_floppy.img: bootloader kernel
 	dd if=/dev/zero of=$(BUILD_DIR)/main_floppy.img bs=512 count=2880
-	mkfs.fat -F 12 -n "XanvOS" $(BUILD_DIR)/main_floppy.img
+	mkfs.fat -F 12 -n "XANVOS" $(BUILD_DIR)/main_floppy.img
 	dd if=$(BUILD_DIR)/stage1.bin of=$(BUILD_DIR)/main_floppy.img conv=notrunc
 	mcopy -i $(BUILD_DIR)/main_floppy.img $(BUILD_DIR)/stage2.bin "::stage2.bin"
 	mcopy -i $(BUILD_DIR)/main_floppy.img $(BUILD_DIR)/kernel.bin "::kernel.bin"
-	mcopy -i $(BUILD_DIR)/main_floppy.img test.txt "::test.txt"
 
 
 #Kernel

README.md

@@ -1,17 +1,21 @@
+<img src="https://vinceale7082.is-a.dev/xanvicos/xanvicos.png" width=50% height=50%>
+
 Hey all, Vincenzo Aleskey Brocato (VinceAle7082) here! <br>
-This is a little project where I try to make an OS just for fun <br>
+This is a little project where I try to explore OS developing just for fun!<br>
-<br>
 
-***What exacly is XanvicOS?***
+## What exactly is XanvicOS?
-<hr>
+XanvicOS is a little project that I write when I have free time. I want to create an os that can run 16, 32 and 64 bit binaries, in future I hope I might be able to add a package manager, and in even more time maybe even linux binaries support. <br>
-XanvicOS is the development name for this OS (the final name will be something like TearOS or SunShine OS), I'll try to make an OS with a 16 and 64 bit mode (like the Windows 9x series, excluding Windows ME). <hr>
+I also want to create a windows manager with some features that I like that I'll call SunShineWM. If you want to help, you can. <br>
-In this OS will be possible to run natively linux executables, and there will be a source-based package manager (like Gentoo GNU/Linux's portage) <hr>
+
-<br>
+## Why are there 2 branches?
+The main branch is the branch where I push my commits, but it can be full of bugs, doesn't compile, or even both. <br>
+I created the stable branch so someone can try XanvicOS, without worring if the code compiles or not. <br>
+Basically stable=normal, main=developement<br>
+If you want to try XanvicOS, clone the stable branch, if you want to contribute, use the main one. <br>
+Features will be added to the stable branch after the main one<br>
+
+## How to compile XanvicOS?
+[Read this](https://vinceale7082.is-a.dev/xanvicos/wiki/important_things.html)
 
-***How can I contribute to this project?***
-<hr>
-You can fix issues, help me find a better name, add features to the kernel and other things, just add something to this project ;)
-<br>
-<hr>
 <br>
 PS: if I wrote something wrong, sorry, English isn't my first language.

SECURITY.md

@@ -0,0 +1,23 @@
+# Security Policy
+
+## What are the supported versions?
+The supported version is the latest commit in the stable, and main branch.
+If you want talk about a bug, vulnerability, or feature please make sure that you are on the latest release, beause maybe the issue has already been resolved or the feature has been added.
+
+## Reporting a Vulnerability
+
+Vulnerabilities are important, if you discover them, please report them immediately.
+If you want to report it: create an issue, select vulnerability, read the template and edit it. Congratulations, you just reported a vulnerability!
+
+## What order do we follow when fixing a vulnerability
+
+We take vulnerabilities seriusly because they are security risks, but some vulnerabilities are more important and dangerous than others.
+For this reason we have a n/10 scale in the vulnerability template.
+We read every vulnerability, and fix them in order of importance.
+
+## What security risks do I take when I use XanvicOS?
+
+XanvicOS is just a hobby project. I try to fix all the bugs, but sometimes I don't discover some.
+XanvicOS isn't being developed by a multi billion dollar company, but just by a student during his free time.
+By using XanvicOS in a not controlled enviroment (like a VM) you basically accept the fact that by using it you are exposing yourself to some security risks.
+If you find any, please report them. You'll help us.

docs/en/index.html

@@ -1,28 +0,0 @@
-<head>
-    <title>Xanvico</title>
-</head>
-<body>
-    <style>h1 {text-align: center;}</style>
-    <h1>Xanvico</h1>
-    <hr>
-        <a href="https://vinceale7082.github.io/XanvicOS/en/index.html"><U>Home</U></a> | <a href="https://vinceale7082.github.io/XanvicOS/en/xanvico/xanvico.html"><U>XanvicOS</U></a>
-    <hr>
-    <h2>Welcome to the Xanvico's archive!</h2>
-    <h3>Why does this website exist?</h3>
-    I created this website because I wanted to.
-    <h3>What you'll be using this website for?</h3>
-    I'll use this website the things that I do. 
-    <h3>What exacly is Xanvico and XanvicOS?</h3>
-    Xanvico is the name of our frind group.
-    <br>
-    XanvicOS is the operative system that we're working and I'll not use an existing kernel like the Linux or BSD ones because I hate my life.
-    <br>
-    The operative system will be a DOS like system that supports the x86_64 architecture that will  execute 16,32 and 64 bit executable and the GNU/Linux (and if I can do it) and Windows ones.
-    <br>
-    In the future we'll think about developing source based package manager (like Gentoo's portage).
-    <br>
-    A GUI will be added in future (I hope it'll be a tiling window manager with some additions like an app menu, a bar like the waybar and others).
-    <br>
-    <hr>
-    <p>~Vincenzo Aleksey Brocato </p>
-</body>

docs/en/xanvico/xanvico.html

@@ -1,19 +0,0 @@
-<head>
-    <title>Xanvico</title>
-</head>
-<body>
-    <style>h1 {text-align: center;}</style>
-    <h1>XanvicOS</h1>
-    <hr>
-        <a href="https://vinceale7082.github.io/XanvicOS/en/index.html"><U>Home</U></a> | <a href="https://vinceale7082.github.io/XanvicOS/en/xanvico/xanvico.html"><U>Xanvico</U></a>
-    <hr>
-    <h3>What are Xanvico and XanvicOS?</h3>
-    I already explained it in the home page, I don't wanna write it again.
-    <h3>How is going on the XanvicOS development?</h3>
-    Good
-    <h3>How will you call the XanvicOS's kernel?</h3>
-    Idk, help me.
-    <br>
-    <hr>
-    <p>~Vincenzo Aleksey Brocato</p>
-</body>

docs/index.html

@@ -1,13 +0,0 @@
-<head>
-  <title>XanvicOS Website</title>
-</head>
-<body>
-  <h1>
-    <U>
-      Welcome to XanvicOS Website
-    </U>
-  </h1>
-  <hr>
-        <a href="https://vinceale7082.github.io/XanvicOS/it/index.html">Italian Website</a> | <a href="https://vinceale7082.github.io/XanvicOS/en/index.html">Engish Website</a>
-  <hr>
-</body>

docs/it/index.html

@@ -1,28 +0,0 @@
-<head>
-    <title>Xanvico</title>
-</head>
-<body>
-    <style>h1 {text-align: center;}</style>
-    <h1>Xanvico</h1>
-    <hr>
-        <a href="https://vinceale7082.github.io/XanvicOS/it/index.html"><U>Home</U></a> | <a href="https://vinceale7082.github.io/XanvicOS/it/xanvico/xanvico.html"><U>XanvicOS</U></a>
-    <hr>
-    <h2>Benvenuto nell'archivio di Xanvico!</h2>
-    <h3>Perché questo sito esiste?</h3>
-    Ho creato questo sito perché avevo voglia di farlo.
-    <h3>A cosa serve questo sito?</h3>
-    Questo sito serve a pubblicare le peggio cavolate che faccio.
-    <h3>Cosa sono Xanvico e XanvicOS</h3>
-    Xanvico è il nome del gruppo di amici composto da me e altri 2 ragazzi.
-    <br>
-    XanvicOS è il sistema operativo su cui ̷s̷̷t̷̷i̷a̷̷m̷̷o̷ sto lavorando e non userò un kernel già esistente come quello linux o quello BSD perché odio la vita. 
-    <br>
-    Il sistema operativo dovrebbe essere un sistema simile al DOS che supporta l'archittetura x86_64, ma che può avviarsi in una "DOS mode" (come Windows 9x, escludendo Windows ME) che in futuro sarà capace di eseguire nativamente gli eseguibili 16,32 e 64 bit e quelli di GNU/Linux e (se ci riesco) anche di Windows. 
-    <br>
-    In futuro si penserà anche allo sviluppo di un package manager dove si può compilare tutti i pacchetti da sorgente (come Portage, package manager di Gentoo GNU/Linux, distro che sto attualmente usando) ma in futuro sarà anche possibile installare pacchetti già compilati dal sottoscritto.
-    <br>
-    Una GUI verrà aggiunta in futuro (spero che sia un tiling window manager con qualche aggiunta) e quando essa sarà stabile pubblicherò il codice sorgente su github in modo da farmi aiutare anche da altri.
-    <br>
-    <hr>
-    <p>~Vincenzo Aleksey Brocato</p>
-</body>

docs/it/xanvico/xanvico.html

@@ -1,19 +0,0 @@
-<head>
-    <title>Xanvico</title>
-</head>
-<body>
-    <style>h1 {text-align: center;}</style>
-    <h1>XanvicOS</h1>
-    <hr>
-        <a href="https://vinceale7082.github.io/XanvicOS/it/index.html"><U>Home</U></a> | <a href="https://vinceale7082.github.io/XanvicOS/it/xanvico/xanvico.html"><U>XanvicOS</U></a>
-    <hr>
-    <h3>Cos'è Xanvico/XanvicOS?</h3>
-    L'ho già spiegato nella pagina Home, non ho voglia di scrivere.
-    <h3>A che punto XanvicOS?</h3>
-    Si avvia in nella modalità 16 bit grazie ad un floppy formattato con FAT12 da cui il bootloader carica il kernel che fa apparire sullo schermo il messaggio di Hello World.
-    <h3>Come chiamerai il kernel di XanvicOS (ad esempio Linus Torvalds ha chiamato il suo Linux)?</h3>
-    Non ne ho la più pallida idea. Aiutami!
-    <br>
-    <hr>
-    <p>~Vincenzo Aleksey Brocato</p>
-</body>

src/bootloader/stage1/stage1.asm

@@ -256,11 +256,11 @@ puts:
 
 .loop:
     lodsb
-    or al, al           ; verify if next character is n
+    or al, al
     jz .fine
 
-    mov ah, 0x0E        ; call bios interrupt
+    mov ah, 0x0E
-    mov bh, 0           ; set page number to 0
+    mov bh, 0
     int 0x10
 
     jmp .loop
@@ -274,16 +274,16 @@ puts:
 ;Mostra delle stringhe sullo schermo
 
 msg_caricamento:
-	db 'Caricamento...', ENDL, 0
+	db 'Loading...', ENDL, 0
 
 msg_errore_lettura:
-	db 'Errore del disco', ENDL, 0
+	db 'Reading disk error!', ENDL, 0
 
 msg_stage2_non_trovato:
-	db 'Stage 2 non trovato', ENDL, 0
+	db 'Stage 2 not found!', ENDL, 0
 
 msg_stage2_trovato:
-	db 'Stage 2 trovato', ENDL, 0
+	db 'Stage 2 found!', ENDL, 0
 
 ;Errori
 

src/bootloader/stage2/Makefile

@@ -1,9 +1,8 @@
 BUILD_DIR?=build/
 ASM?=nasm
 ASMFLAGS?=-f obj
-CC?=gcc
 CC16?=/usr/bin/watcom/binl/wcc
-CFLAGS16?=
+CFLAGS16?=-4 -d3 -s -wx -ms -zl -zq # -oneatxzh 
 LD16?=/usr/bin/watcom/binl/wlink
 
 SOURCES_C=$(wildcard *.c)
@@ -17,8 +16,8 @@ all: stage2
 
 stage2: $(BUILD_DIR)/stage2.bin
 
-$(BUILD_DIR)/stage2.bin: $OBJECTS_ASM $OBJECTS_C
+$(BUILD_DIR)/stage2.bin: $(OBJECTS_ASM) $(OBJECTS_C)
-	$(LD16) NAME $(BUILD_DIR)/stage2.bin FILE \{ $(OBJECTS_ASM) $(OBJECTS_C) \} OPTION_MAP=$(BUILD_DIR)/stage2.map @linker.lnk 
+	$(LD16) NAME $(BUILD_DIR)/stage2.bin FILE \{ $(OBJECTS_ASM) $(OBJECTS_C) \} OPTION MAP=$(BUILD_DIR)/stage2.map @linker.lnk
 
 $(BUILD_DIR)/stage2/c/%.obj: %.c always
 	$(CC16) $(CFLAGS16) -fo=$@ $<

src/bootloader/stage2/linker.lnk

@@ -0,0 +1,12 @@
+FORMAT RAW BIN
+OPTION QUIET,
+       NODEFAULTLIBS,
+       START=entry,
+       VERBOSE,
+       OFFSET=0,
+       STACK=0x200
+ORDER
+    CLNAME CODE
+        SEGMENT _ENTRY
+        SEGMENT _TEXT
+    CLNAME DATA

src/bootloader/stage2/main.asm

@@ -0,0 +1,22 @@
+bits 16
+
+section _ENTRY class=CODE
+
+extern _cstart_
+global entry
+
+entry:
+    cli
+
+    mov ax, ds
+    mov ss, ax
+    mov sp, 0
+    mov bp, sp
+    sti
+
+    xor dh, dh
+    push dx
+    call _cstart_
+
+    cli
+    hlt

src/bootloader/stage2/main.c

@@ -0,0 +1,12 @@
+#include "stdint.h"
+#include "stdio.h"
+
+void _cdecl cstart_(uint16_t bootDrive)
+{
+    const char far* far_str = "far string";
+
+    puts("Hello World from Stage 2!\r\n");
+    printf("Hello World from the printf library!");
+    for (;;);
+
+}

src/bootloader/stage2/stage2.asm

@@ -1,56 +1,21 @@
-org 0x0
 bits 16
 
+section _ENTRY class=CODE
 
-%define ENDL 0x0D, 0x0A
+extern _cstart_
+global entry
 
-;Codice del kernel
+entry:
-start:
+    cli
-    mov si, msg_helloworld
+    mov ax, ds
-    call puts
+    mov ss, ax
-	call premi_per_riavviare
+    mov sp, 0
+    mov bp, sp
+    sti
+
+    xor dh, dh
+    push dx
+    call _cstart_
 
-.halt:
     cli
     hlt
-
-puts:
-    ; save registers we will modify
-    push si
-    push ax
-    push bx
-
-.loop:
-    lodsb
-    or al, al
-    jz .fine
-
-    mov ah, 0x0E
-    mov bh, 0
-    int 0x10
-
-    jmp .loop
-
-.fine:
-    pop bx
-    pop ax
-    pop si    
-    ret
-
-;Stringhe
-msg_helloworld: 
-	db 'Hello World dallo stage2 del Bootloader!', ENDL, 0
-
-msg_premi_per_riavviare:
-	db 'Premi un tasto per riavviare...', ENDL, 0
-;Errori
-
-;Variabili
-
-;Cose che non so dove mettere
-premi_per_riavviare:
-	mov si, msg_premi_per_riavviare
-	call puts
-	mov ah, 0
-	int 16h
-	jmp 0FFFFh:0 

src/bootloader/stage2/stdint.h

@@ -0,0 +1,17 @@
+#pragma once
+
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef signed short int16_t;
+typedef unsigned short uint16_t;
+typedef signed long int int32_t;
+typedef unsigned long int uint32_t;
+typedef signed long long int int64_t;
+typedef unsigned long long int uint64_t;
+
+typedef uint8_t bool;
+
+#define false 0
+#define true 1
+
+

src/bootloader/stage2/stdio.c

@@ -0,0 +1,234 @@
+#include "stdio.h"
+#include "x86.h"
+
+void putc(char c)
+{
+    x86_Video_WriteCharTeletype(c, 0);
+}
+
+void puts(const char* str)
+{
+    while(*str)
+    {
+        putc(*str);
+        str++;
+    }
+}
+
+void puts_f(const char far* str)
+{
+    while(*str)
+    {
+        putc(*str);
+        str++;
+    }
+}
+
+#define PRINTF_STATE_NORMAL         0
+#define PRINTF_STATE_LENGTH         1
+#define PRINTF_STATE_LENGTH_SHORT   2
+#define PRINTF_STATE_LENGTH_LONG    3
+#define PRINTF_STATE_SPEC           4
+
+#define PRINTF_LENGTH_DEFAULT       0
+#define PRINTF_LENGTH_SHORT_SHORT   1
+#define PRINTF_LENGTH_SHORT         2
+#define PRINTF_LENGTH_LONG          3
+#define PRINTF_LENGTH_LONG_LONG     4
+
+int* printf_number(int* argp, int length, bool sign, int radix);
+
+void _cdecl printf(const char* fmt, ...)
+{
+    int* argp = (int*)&fmt;
+    int state = PRINTF_STATE_NORMAL;
+    int length = PRINTF_LENGTH_DEFAULT;
+    int radix = 10;
+    bool sign = false;
+
+    argp++;
+
+    while (*fmt)
+    {
+        switch (state)
+        {
+            case PRINTF_STATE_NORMAL:
+                switch (*fmt)
+                {
+                    case '%':   state = PRINTF_STATE_LENGTH;
+                                break;
+                    default:    putc(*fmt);
+                                break;
+                }
+                break;
+
+            case PRINTF_STATE_LENGTH:
+                switch (*fmt)
+                {
+                    case 'h':   length = PRINTF_LENGTH_SHORT;
+                                state = PRINTF_STATE_LENGTH_SHORT;
+                                break;
+                    case 'l':   length = PRINTF_LENGTH_LONG;
+                                state = PRINTF_STATE_LENGTH_LONG;
+                                break;
+                    default:    goto PRINTF_STATE_SPEC_;
+                }
+                break;
+
+            case PRINTF_STATE_LENGTH_SHORT:
+                if (*fmt == 'h')
+                {
+                    length = PRINTF_LENGTH_SHORT_SHORT;
+                    state = PRINTF_STATE_SPEC;
+                }
+                else goto PRINTF_STATE_SPEC_;
+                break;
+
+            case PRINTF_STATE_LENGTH_LONG:
+                if (*fmt == 'l')
+                {
+                    length = PRINTF_LENGTH_LONG_LONG;
+                    state = PRINTF_STATE_SPEC;
+                }
+                else goto PRINTF_STATE_SPEC_;
+                break;
+
+            case PRINTF_STATE_SPEC:
+            PRINTF_STATE_SPEC_:
+                switch (*fmt)
+                {
+                    case 'c':   putc((char)*argp);
+                                argp++;
+                                break;
+
+                    case 's':   if (length == PRINTF_LENGTH_LONG || length == PRINTF_LENGTH_LONG_LONG)
+                                {
+                                    puts_f(*(const char far**)argp);
+                                    argp += 2;
+                                }
+                                else
+                                {
+                                    puts(*(const char**)argp);
+                                    argp++;
+                                }
+                                break;
+
+                    case '%':   putc('%');
+                                break;
+
+                    case 'd':
+                    case 'i':   radix = 10; sign = true;
+                                argp = printf_number(argp, length, sign, radix);
+                                break;
+
+                    case 'u':   radix = 10; sign = false;
+                                argp = printf_number(argp, length, sign, radix);
+                                break;
+
+                    case 'X':
+                    case 'x':
+                    case 'p':   radix = 16; sign = false;
+                                argp = printf_number(argp, length, sign, radix);
+                                break;
+
+                    case 'o':   radix = 8; sign = false;
+                                argp = printf_number(argp, length, sign, radix);
+                                break;
+
+                    default:    break;
+                }
+
+                state = PRINTF_STATE_NORMAL;
+                length = PRINTF_LENGTH_DEFAULT;
+                radix = 10;
+                sign = false;
+                break;
+        }
+
+        fmt++;
+    }
+}
+
+const char g_HexChars[] = "0123456789abcdef";
+
+int* printf_number(int* argp, int length, bool sign, int radix)
+{
+    char buffer[32];
+    unsigned long long number;
+    int number_sign = 1;
+    int pos = 0;
+
+    switch (length)
+    {
+        case PRINTF_LENGTH_SHORT_SHORT:
+        case PRINTF_LENGTH_SHORT:
+        case PRINTF_LENGTH_DEFAULT:
+            if (sign)
+            {
+                int n = *argp;
+                if (n < 0)
+                {
+                    n = -n;
+                    number_sign = -1;
+                }
+                number = (unsigned long long)n;
+            }
+            else
+            {
+                number = *(unsigned int*)argp;
+            }
+            argp++;
+            break;
+
+        case PRINTF_LENGTH_LONG:
+            if (sign)
+            {
+                long int n = *(long int*)argp;
+                if (n < 0)
+                {
+                    n = -n;
+                    number_sign = -1;
+                }
+                number = (unsigned long long)n;
+            }
+            else
+            {
+                number = *(unsigned long int*)argp;
+            }
+            argp += 2;
+            break;
+
+        case PRINTF_LENGTH_LONG_LONG:
+            if (sign)
+            {
+                long long int n = *(long long int*)argp;
+                if (n < 0)
+                {
+                    n = -n;
+                    number_sign = -1;
+                }
+                number = (unsigned long long)n;
+            }
+            else
+            {
+                number = *(unsigned long long int*)argp;
+            }
+            argp += 4;
+            break;
+    }
+
+    do
+    {
+        uint32_t rem;
+        x86_div64_32(number, radix, &number, &rem);
+        buffer[pos++] = g_HexChars[rem];
+    } while (number > 0);
+
+    if (sign && number_sign < 0)
+        buffer[pos++] = '-';
+
+    while (--pos >= 0)
+        putc(buffer[pos]);
+
+    return argp;
+}

src/bootloader/stage2/stdio.h

@@ -0,0 +1,6 @@
+#pragma once
+
+void putc(char c);
+void puts(const char* str);
+void puts_f(const char far* str);
+void _cdecl printf(const char* fmt, ...);

src/bootloader/stage2/x86.asm

@@ -0,0 +1,48 @@
+bits 16
+
+section _TEXT class=CODE
+
+global _x86_Video_WriteCharTeletype
+
+_x86_Video_WriteCharTeletype:
+    push bp
+    mov bp, sp
+
+    push bx
+    mov ah, 0Eh
+    mov al, [bp + 4]
+    mov bh, [bp + 6]
+
+    int 10h
+
+    pop bx
+
+    mov sp, bp
+    pop bp
+
+    ret
+
+global _x86_div64_32
+
+_x86_div64_32:
+    push bp
+    mov bp, sp
+
+    push bx
+    mov eax, [bp + 4]
+    mov ecx, [bp + 12]
+    xor edx, edx
+    div ecx
+    mov bx, [bp + 16]
+    mov [bx + 4], eax
+    mov eax, [bp + 4]
+    div ecx
+    mov [bx], eax
+    mov bx, [bp + 18]
+    mov [bx], edx
+    pop bx
+
+    mov sp, bp
+    pop bp
+
+    ret

src/bootloader/stage2/x86.h

@@ -0,0 +1,6 @@
+#pragma once
+#include "stdint.h"
+
+void _cdecl x86_div64_32(uint64_t dividend, uint32_t divisor, uint64_t* quotientOut, uint32_t* remainderOut);
+
+void _cdecl x86_Video_WriteCharTeletype(char c, uint8_t page);