A poorly written OS for the x86 arch. (WIP)
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[org 0x7c00] ; bootsector
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; Save the boot drive index
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mov [BOOT_DRIVE], dl
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; Move the stack pointer somewhere safe
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mov bp, 0x8000 ; move it to 0x8000
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mov sp, bp
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; Switching to PM
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call pm_preinit
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jmp $ ; inf loop
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%include "equ/ascii.asm"
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%include "bios.asm"
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%include "pm.asm"
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BEGIN_PM:
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mov ebx, welcome_string
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call vga_print
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jmp $
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welcome_string: db "e Operating-System (eOS): Version 2021 0.0", ASCII_END
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BOOT_DRIVE: db 0
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; Bootsector
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times 510-($-$$) db 0
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dw 0xaa55 ; magic BIOS numbers
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