From 1eb57e4ab00b0d0d885660b0a96f34a99dffea5f Mon Sep 17 00:00:00 2001
From: Conzer <vaporvault04@gmail.com>
Date: Mon, 2 Dec 2024 15:32:42 -0500
Subject: [PATCH] add disk loading functions (does this even work yet???)

---
 .gitignore |  1 +
 main.asm   | 54 +++++++++++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 48 insertions(+), 7 deletions(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8f2a01a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+badloader.img
diff --git a/main.asm b/main.asm
index e10cde8..5d2f1c3 100644
--- a/main.asm
+++ b/main.asm
@@ -13,18 +13,58 @@ start:
     mov dx, 0x184F
     int 0x10
 
-    mov si, msg
-print:
+    mov si, fate_msg
+print_msg:
     lodsb
     cmp al, 0
-    je hang
+    je random_dec
     mov ah, 0x0E
     int 0x10
-    jmp print
-hang:
-    jmp hang
+    jmp print_msg
+random_dec:
+    mov ah, 0x00
+    int 0x1A
+    test dx, 1
+    jz boot_os
+    jmp crash_sys
+boot_os:
+    ; ok fine ill tell you what this was it reads the first sector of the first disk into memory
+    mov ax, 0x0000
+    mov es, ax
+    mov bx, 0x7E00
+    mov ah, 0x02
+    mov al, 0x01
+    mov ch, 0x00
+    mov cl, 0x02
+    mov dh, 0x00
+    mov dl, 0x80
+    int 0x12
+    jc disk_err
 
-msg db "hi im the badloader", 0
+    jmp 0x0000:0x7E00
+disk_err:
+    mov si, disk_err_msg
+    call print_str
+    jmp crash_sys
+crash_sys:
+    mov si, crash_msg
+    call print_str
+    cli
+hang:
+    hlt
+    jmp hang
+print_str:
+    lodsb
+    cmp al, 0
+    je .done
+    mov ah, 0x0E
+    int 0x10
+    jmp print_str
+.done:
+    ret
+fate_msg db "hi im the badloader i will boot your OS if i feel like it"
+disk_err_msg db "lmao ur disk failed to load hahahahaha"
+crash_msg db "im gona crash your pc now byeee xoxo"
 
 times 510-($-$$) db 0
 dw 0xAA55