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Move the entire kernel into its own directory. Create new directories
for system commands, libraries and other required essentials for a
complete Unix-like operating system.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Create a subset of the C library for use inside the kernel.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Add a basic kmalloc implementation. This allows the kernel to allocate
blocks smaller than a whole page.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Add the mostly finished physical memory allocator and expose its
functions to the paging system.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Add an implmentation of strcpy. This function is used in several places
in the kernel to copy strings between memory addresses.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Create files that add IDT support for i386.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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Add a set of routines that setup the x86's global descriptor table.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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Add a 'k' prefix to the kernel versions of the printf family.
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Add a function in the serial interface that writes an entire string to
the serial line.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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The function serial_init should not be declared as static. This function
could change under a different architecture and should be defined with
the target architecture.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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Add support for serial communication in the i386 architecture.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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Add the main initialiazation functions within the main kernel directory.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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