Here is a list of all files with brief descriptions:

animation.cpp	A simple animation for testing duble FrameBuffer
animation.hpp
Arch.hpp	Architecture control and initialization
Arch.i686.cpp	I686 architecture implementation of Arch.hpp
Arch.i686.hpp	I686 architecture implementation of Arch.hpp
Arguments.cpp	Kernel command argument parsing
Arguments.hpp	Kernel command argument parsing
assert.hpp
Bitset.hpp	A basic bitmap implementation
console.cpp	Framebuffer console
console.hpp	Framebuffer console
crti.h	C/C++ runtime initialization & teardown. See crti.s and crtn.s for details https://wiki.osdev.org/Calling_Global_Constructors
crti.s
crtn.s
cxx.cpp	C++ dynamic memory management functions
defines.hpp	Compiler pre-processor definitions
EarlyPanic.cpp
EarlyPanic.hpp	Early CGA-mode panic (no framebuffer)
Entry.cpp	The entry point into the Xyris kernel
errno.cpp
errno.hpp	Kernel error definitions
Flush.h	Header for assembly functions defined in flush.s
flush.s
font.cpp
font.hpp
framebuffer.cpp
framebuffer.hpp
gcc.cpp
gdt.cpp	The Global Descriptor Table (GDT) is specific to the IA32 architecture
gdt.hpp	The Global Descriptor Table (GDT) is specific to the IA32 architecture. It contains entries telling the CPU about memory segments
graphics.cpp	Graphics management and control
graphics.hpp
Handoff.cpp	Bootloader information parsing and kernel handoff container
Handoff.hpp
heap.cpp	Liballoc heap implementation
heap.hpp	Liballoc heap implementation
idt.cpp
idt.hpp	Interrupt Descriptor Table header
interrupt.s
Interrupts.h	Interrupt/Exception stub functions and handlers
isr.cpp
isr.hpp	Interrupt Service Routine header
LinkedList.hpp	Standard linked list library
Loader.cpp	Bootloader agnostic pre-kernel initialization
Loader.hpp
Logger.cpp
Logger.hpp
Memory.hpp	Architecture memory management & paging API
Memory.i686.hpp	I686 memory structures and definitions. C & C++ compatible header
MemoryMap.hpp	Memory map containing a number of Memory sections that describe the physical memory layout
MemorySection.hpp
Mutex.cpp
Mutex.hpp
NullBoot.c	Kernel ELF entry point. Should never be called by any bootloader
paging.cpp
paging.hpp
Panic.cpp	Early CGA-mode panic (no framebuffer)
Panic.hpp	Kernel panic management
Physical.hpp	Physical memory mapping
ports.cpp	CPU port access functions
ports.hpp	Ports header file. Provides inline functions for getting and setting values at different ports. An I/O port is usually used as a technical term for a specific address on the x86's IO bus. This bus provides communication with devices in a fixed order and size, and was used as an alternative to memory access. (https://wiki.osdev.org/I/O_Ports)
primes.cpp	Prime computation tasks
primes.hpp	Prime computation tasks
printf.cpp	A printf implementation released under the public domain
RAII.hpp	Resource Acquisition Is Initialization mutex. Locks when constructed and unlocks when destructed
rand.cpp	Portable implementation of rand and srand as according to the C standard implementation by K&R
rand.hpp
regs.hpp	I686 control register definitions. C & C++ compatible header
RingBuffer.hpp	A ring buffer is a buffer method where the same memory used to contain data is reused. Inserting and removing data is done in a queue-like fashion
rs232.cpp
rs232.hpp	A simple, write-only driver for the RS232 serial device standard. Code mostly ported from Panix-Archive (v2)
rtc.cpp
rtc.hpp
sections.hpp	Kernel ELF section definitions
Semaphore.cpp
Semaphore.hpp
spinner.cpp	Kernel spinner task
spinner.hpp	Kernel spinner task
spkr.cpp
spkr.hpp
Stacktrace.cpp
Stacktrace.hpp
stdio.hpp
stivale2.c
string.cpp	Standard string and memory utility library
string.hpp	Standard string and memory utility library
tasks.cpp
tasks.hpp
tasks.s
time.cpp
time.hpp	Time lib code
timer.cpp	Programmable Interrupt Timer driver functions
timer.hpp
tss.hpp