A poorly written OS for the x86 arch. (WIP)
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eOS/src/bootloader.asm

33 lines
675 B

[org 0x7c00] ; bootsector
mov bx, welcome_string ; Print the welcome string
call println
mov bx, info_string ; Print version info
call println
mov bx, hex_test_string ; Hex print test (not needed but fun)
call print
pusha
mov dx, 0x002e ; test the conversion
call hex_to_ascii
call println
popa
jmp $ ; inf loop
; Load the EQUs
%include "equ/BIOS.asm"
%include "equ/ASCII.asm"
; SRs
%include "elib/io.asm"
%include "elib/convert.asm"
welcome_string: db "e Operating-System (eOS)", ASCII_END
info_string: db "Version 2021 0.0", ASCII_END
hex_test_string: db "Hex printing test: ", ASCII_END
times 510-($-$$) db 0
db 0x55, 0xaa ; magic BIOS numbers