|
|
|
|
[org 0x7c00] ; bootsector
|
|
|
|
|
|
|
|
|
|
mov bx, welcome_string ; Print the welcome string
|
|
|
|
|
call println
|
|
|
|
|
|
|
|
|
|
mov bx, info_string ; Print version info
|
|
|
|
|
call println
|
|
|
|
|
|
|
|
|
|
; Read from disk
|
|
|
|
|
mov bp, 0x8000
|
|
|
|
|
mov sp, bp ; move the stack away so that it does not get overwritten
|
|
|
|
|
|
|
|
|
|
mov bx, 0x9000
|
|
|
|
|
mov dh, 2 ; read 2 sectors
|
|
|
|
|
call disk_read ; read
|
|
|
|
|
|
|
|
|
|
mov bx, read_test_string
|
|
|
|
|
call print
|
|
|
|
|
|
|
|
|
|
mov dx, [0x9000]
|
|
|
|
|
call print_hex
|
|
|
|
|
|
|
|
|
|
mov bx, byte_sep_string
|
|
|
|
|
call print
|
|
|
|
|
|
|
|
|
|
mov dx, [0x9000 + 512]
|
|
|
|
|
call print_hex
|
|
|
|
|
|
|
|
|
|
mov bx, empty_string
|
|
|
|
|
call println
|
|
|
|
|
|
|
|
|
|
jmp $ ; inf loop
|
|
|
|
|
|
|
|
|
|
; Constants
|
|
|
|
|
%include "equ/ASCII.asm"
|
|
|
|
|
|
|
|
|
|
; SRs etc
|
|
|
|
|
%include "bios.asm"
|
|
|
|
|
|
|
|
|
|
welcome_string: db "e Operating-System (eOS)", ASCII_END
|
|
|
|
|
info_string: db "Version 2021 0.0", ASCII_END
|
|
|
|
|
read_test_string: db "Disk read: ", ASCII_END
|
|
|
|
|
byte_sep_string: db "; ", ASCII_END
|
|
|
|
|
empty_string: db ASCII_END
|
|
|
|
|
|
|
|
|
|
times 510-($-$$) db 0
|
|
|
|
|
db 0x55, 0xaa ; magic BIOS numbers
|
|
|
|
|
|
|
|
|
|
; Bloat bytes to test reading
|
|
|
|
|
times 256 dw 0xEEEE
|
|
|
|
|
times 256 dw 0xAAAA
|
