Displaying 1 result from an estimated 1 matches for "swap_read_ok".
2002 Jul 11
1
help with porting patch from 1.62 to 1.75
...swap
+ ret
+
+is_swap:
+ call crlf
+ mov si,swap_loading
+ call cwritestr
+
+ push bx
+ mov ax,0201h ; read disk, 1 sector
+ mov bx,trackbuf
+ mov cx,1 ; track 0, sector 1
+ xor dh,dh ; head 0
+ mov dl,81h ; second hard drive
+ int 13h
+ pop bx
+ jnc swap_read_ok
+ call crlf
+ mov si,swap_failed
+ jmp abort_load
+swap_read_ok:
+
+ mov bx,[bsBytesPerSec]
+ mov ax,[bx+trackbuf-2]
+ cmp ax,0AA55h ; Boot sector signature
+ je swap_bootsec_ok
+ jmp bad_bootsec
+swap_bootsec_ok:
+
+ call crlf
+ mov si,swap_booting
+...