Woo

BITS 16
ORG 7C00h

start:
    cli

    mov ah, 02h
    mov al, 1
    mov ch, 0
    mov dh, 0
    mov cl, 2
    mov bx, loadLocation
    int 13h

    xor ax, ax
    push ax
    popf
    mov ds, ax
    lgdt [gdt_desc]
    mov eax, cr0
    or eax, 1
    mov cr0, eax
    jmp 08h:protectedModeBegin

BITS 32

protectedModeBegin:
    mov ax, 10h
    mov ds, ax
    mov ss, ax
    mov esp, 90000h

    mov [0B8000h], BYTE 'P'
    mov [0B8001h], BYTE 1Bh

    jmp loadLocation

gdt:
gdt_null:
    dq 0
gdt_code:
    dw 0FFFFh
    dw 0
    db 0
    db 10011010b
    db 11001111b
    db 0
gdt_data:
    dw 0FFFFh
    dw 0
    db 0
    db 10010010b
    db 11001111b
    db 0
gdt_end:

gdt_desc:
    dw gdt_end - gdt
    dd gdt

    times 510-($-$$) db 0
    dw 0AA55h

loadLocation:
    mov [0B8002h], BYTE 'L'
    mov [0B8003h], BYTE 1Bh

    mov si, text
    mov ax, 01h
    mov bx, 01h
    call placeText
    mov si, text
    mov ax, 02h
    mov bx, 02h
    call placeText
    mov si, text
    mov ax, 03h
    mov bx, 03h
    call placeText
    mov si, text
    mov ax, 04h
    mov bx, 04h
    call placeText
    mov si, text
    mov ax, 05h
    mov bx, 05h
    call placeText
    mov si, text
    mov ax, 06h
    mov bx, 06h
    call placeText
    mov si, text
    mov ax, 07h
    mov bx, 07h
    call placeText
    mov si, text
    mov ax, 08h
    mov bx, 08h
    call placeText

.loop:
    jmp .loop

text:
    db "This is some test text.", 0FFh

xPos: db 0
yPos: db 0

temp1: dw 0
temp2: dw 0

;esi - Pointer to text
;ax - X Pos.
;bx - Y Pos.
placeText:
    mov [temp1], ax
    mov ax, bx
    mov bx, 160
    mul bx
    mov [temp2], ax
    mov ax, [temp1]
    mov bx, 2
    mul bx
    mov bx, ax
    mov ax, [temp2]
    add eax, ebx

    mov ecx, 0B8000h
    add ecx, eax
.placeTextLoop:
    lodsb
    cmp al, 0FFh
    je .donePlacingText
    mov [ecx], BYTE al
    add ecx, 1h
    mov [ecx], BYTE 1Bh
    add ecx, 1h
    jmp .placeTextLoop
.donePlacingText:
    ret