Delete boot.asm

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heckeralt 2024-09-21 14:26:56 -04:00
parent 17e6ac0b84
commit 7dd4755783
1 changed files with 0 additions and 44 deletions

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@ -1,44 +0,0 @@
[bits 16] ; Set to 16-bit mode
[org 0x7C00] ; BIOS loads the bootloader at this address
start:
; Clear screen
mov ax, 0x0003 ; Set video mode to 3 (80x25 color text)
int 0x10 ; BIOS interrupt to set video mode
; Print first message
mov si, hello_message ; Load address of the first message into SI
call print_string ; Call function to print the string
; Print second message
mov si, second_message ; Load address of the second message into SI
call print_string ; Call function to print the string
; Print third message
mov si, third_message ; Load address of the third message into SI
call print_string ; Call function to print the string
; Hang the system (infinite loop)
hang:
jmp hang ; Jump to hang indefinitely
; Function to print a string
print_string:
mov ah, 0x0E ; BIOS teletype output function
.next_char:
lodsb ; Load byte at DS:SI into AL and increment SI
cmp al, 0 ; Check for null terminator
je .done ; If null, we are done
int 0x10 ; Call BIOS to print character in AL
jmp .next_char ; Repeat for next character
.done:
ret ; Return from function
; Data section for messages
hello_message db 'Hello, World!', 0 ; Null-terminated string
second_message db 'CPU: HeckerSoft Generic CPU', 0 ; Second message
third_message db 'Enjoy exploring!', 0 ; Third message
; Bootloader signature (must be present)
times 510 - ($ - $$) db 0 ; Fill the rest of the sector with zeros
dw 0xAA55 ; Boot signature