Change branding, ProjectRED -> Sync.
Additionally, added header comments to all files. The next few commits will likely be structure and comment-related.
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; This file is written with Intel ASM Syntax.
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[GLOBAL load_gdt] ; Allows the C code to call gdt_flush().
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[EXTERN gp]
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load_gdt:
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; Get the pointer to the GDT, passed as a parameter.
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lgdt [gp] ; Load the new GDT pointer
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mov ax, 0x10 ; 0x10 is the offset in the GDT to our data segment
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mov ds, ax ; Load all data segment selectors
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mov es, ax
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mov fs, ax
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mov gs, ax
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mov ss, ax
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jmp 0x08:flush ; 0x08 is the offset to our code segment: Far jump!
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flush:
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ret
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135
arch/i386/isr.s
135
arch/i386/isr.s
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%macro ISR 1
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global isr%1
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isr%1:
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cli
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push byte 0
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push byte %1
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jmp isr_common
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%endmacro
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%macro ISR_ERR 1
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global isr%1
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isr%1:
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cli
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push byte %1
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jmp isr_common
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%endmacro
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%macro IRQ 2
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global irq%1
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irq%1:
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cli
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push byte 0
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push byte %2
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jmp irq_common
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%endmacro
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ISR 0
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ISR 1
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ISR 2
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ISR 3
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ISR 4
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ISR 5
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ISR 6
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ISR 7
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ISR_ERR 8
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ISR 9
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ISR_ERR 10
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ISR_ERR 11
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ISR_ERR 12
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ISR_ERR 13
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ISR_ERR 14
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ISR 15
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ISR 16
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ISR_ERR 17
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ISR 18
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ISR 19
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ISR 20
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ISR 21
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ISR 22
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ISR 23
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ISR 24
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ISR 25
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ISR 26
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ISR 27
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ISR 28
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ISR 29
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ISR_ERR 30
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ISR 31
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IRQ 0, 32
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IRQ 1, 33
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IRQ 2, 34
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IRQ 3, 35
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IRQ 4, 36
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IRQ 5, 37
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IRQ 6, 38
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IRQ 7, 39
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IRQ 8, 40
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IRQ 9, 41
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IRQ 10, 42
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IRQ 11, 43
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IRQ 12, 44
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IRQ 13, 45
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IRQ 14, 46
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IRQ 15, 47
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extern fault_handler
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isr_common:
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pusha
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push ds
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push es
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push fs
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push gs
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mov ax, 0x10
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mov ds, ax
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mov es, ax
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mov fs, ax
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mov gs, ax
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mov eax, esp
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push eax
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mov eax, fault_handler
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call eax
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pop eax
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pop gs
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pop fs
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pop es
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pop ds
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popa
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add esp, 8
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iret
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extern irq_handler
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irq_common:
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pusha
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push ds
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push es
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push fs
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push gs
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mov ax, 0x10
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mov ds, ax
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mov es, ax
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mov fs, ax
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mov gs, ax
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mov eax, esp
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push eax
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mov eax, irq_handler
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call eax
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pop eax
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pop gs
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pop fs
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pop es
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pop ds
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popa
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add esp, 8
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iret
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global idt_load
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extern idtp
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idt_load:
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lidt [idtp]
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ret
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@ -1,3 +1,12 @@
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/************************
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*** Team Kitty, 2019 ***
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*** Sync ***
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***********************/
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/* This file provides an interface to
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* the hardware timer / RTC. Not much
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* more to be said about it. */
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#include <kernel/utils.h>
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#include <kernel.h>
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#include <kernel/serial.h>
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/************************
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*** Team Kitty, 2019 ***
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*** Sync ***
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***********************/
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/* This file provides all of the functionality
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* needed to interact with the Text-Mode VGA
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* buffer, which will soon be defunct due to
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* EFI and graphics.
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*
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* This file will be left for the forseeable
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* future, because it allows for easy debugging.
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* 17/07/19 Curle
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*/
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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/************************
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*** Team Kitty, 2019 ***
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*** ProjectRED ***
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*** Sync ***
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***********************/
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/* This file combines the implementation
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/************************
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*** Team Kitty, 2019 ***
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*******ProjectRED*******
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*** Sync ***
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***********************/
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/* This file contains all of the ISR and IRQ
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/************************
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*** Team Kitty, 2019 ***
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*** ProjectRED ***
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*** Sync ***
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***********************/
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/* This file contains the entry point
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* to the kernel. This section consists
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* mainly of bootloading functions.
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*
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* Graphics and memory will be setup
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* at later stages.
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*/
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//#include <stdio.h>
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#include <kernel.h>
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#include <kernel/tty.h>
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serial_print(0x3F8, "[INFO] All subsystems ready. Printing message.\r\n");
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/* Everything is ready; print a pretty message. */
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term_setcolor(RED);
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term_writes("\n(c)");
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term_setcolor(GREEN);
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term_writes(" Project");
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term_setcolor(RED);
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term_writes("RED");
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term_writes(" Sync");
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term_setcolor(WHITE);
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term_writes(", 2019\n");
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/************************
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*** Team Kitty, 2019 ***
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*** Sync ***
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***********************/
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/* This file provides an interface to the serial port.
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* Most emulators allow the serial port to be saved into
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* a text buffer, or a file, but this code should work on
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* hardware with an actual serial port and monitor. */
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#include <kernel/utils.h>
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#include <stdarg.h>
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#include <stdint.h>
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/************************
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*** Team Kitty, 2019 ***
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*** ProjectRED ***
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*** Sync ***
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***********************/
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/* This file contains utility functions
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* for the kernel and OS to use. They
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* will be naturally optimized through
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* the run of development, and thus are
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* to be used scarcely until a more
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* permanent solution can be found.
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*/
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#include <kernel/utils.h>
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#include <kernel/tty.h>
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#include <stddef.h>
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