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Commits on Jul 28, 2020

• Add AutoIncrementBuild to repository. This simple program updates the definition of the build number with each successful build. Update post-build event to use AutoIncrementBuild, pointing to Build…

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Commits on Jul 25, 2020

• Move "X" System menu button to a button control so clicking the X closes the window.

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Commits on Jul 23, 2020

• Start using the memory map GRUB gave us to determine how much RAM we can use. (We're still hardcoding a lot of RAM at the beginning though.)

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Commits on Jul 18, 2020

• Create a control for the system menu and move system-menu-drawing code into that control.

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Commits on Jul 15, 2020

• Add Paging_Get_Physical_Address() to get a physical memory address from a logical one. This is needed because we no longer identity map all memory addresses and drivers need physical addresses.

  

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Commits on Jul 10, 2020

• Make sure new tasks are created with the interrupt flag set. Don't leave interrupts disabled unless necessary.

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Commits on Jul 9, 2020

• Add some improvements to LineCounter script:

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• Remove temporary "multiEnable" boolean and "multi" command. Multi-tasking is working well enough that they aren't needed. Also, "single-tasking" had regressed and wasn't working.

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• Push address of ExitApp() to top of stack of dispatched tasks. This allows apps returning from main() to terminate gracefully.

  

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• Add simple line-counter autohotkey script.

  

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Commits on Jul 8, 2020

• Add CloseApp() function and system call for closing one app from another.

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• Add ExitApp() function for exiting multitasking apps with the exit() system call. Soon ExitApp() will also be the way that apps returning from main() will exit.

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Commits on Jul 7, 2020

• Add functions to print strings via serial port.

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Commits on Jul 6, 2020

• Update README.md.

  

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• Update README.md.

  

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• Continue implementing IDE controller support. IDE driver can now show connected drives.

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Commits on Jul 5, 2020

• Fix PAGE_ENTRY_WRITABLE and PAGE_ENTRY_USER_ACCESSIBLE definitions, which were previously swapped.

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• Ensure the kernel's page directory is set before the first possible call to KPageAllocator(). This fixes a bug that was only preventing itself in VirtualBox.

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Commits on Jul 4, 2020

• Implement backspace with the GUI Edit control.

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Commits on Jul 3, 2020

• Add LaunchApp() function and launchApp System call for launching a new process from the GUI or command line. Replace relevant sections of console commands with LaunchApp() calls.

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Commits on Jul 2, 2020

• Create a keymap to map keyboard keys to their corresponding SDL_Scancode.

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• Add MessageBoxf() GUI function to display a message with formatted text.

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Commits on Jul 1, 2020

• Allow for sending key presses to a GUI_Window, and then to a focused GUI_EditControl.

  

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• Begin implementing a Run window to run an arbitrary program.

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Commits on Jun 30, 2020

• Continue expanding Start Menu implementation.

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• Start implementing popup menus.

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Commits on Jun 29, 2020

• Allow executables to be mapped to a virtual memory address. Now (finally) multiple executables can share the same logical address, and the GUI shell supports displaying the output of multiple progr…

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Commits on Jun 28, 2020

• Create a new page directory for each new task (except the GUI shell, which shares the kernel's page directory).

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• Allow DispatchNewTask() to receive the location of the page directory for the new task.

  

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• Store a reference to a page directory (cr3 register) with each task and switch the cr3 register with each context switch.

  

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• Create windows for newly-launched applications when the GUI shell is running.

  

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Commits on Jun 26, 2020

• Include a message to send text to a windowed terminal application.

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• Add GUI_TerminalWindow class.

  

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• Assign a unique PID to the KERNEL PROCESS.

  

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• Begin implementing a link between the GUI shell and the kernel.

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