fix null xs seed bug

diff --git a/lifeboot.asm b/lifeboot.asm
index ed033500fa6fd5b529a420c2dd764442c6607d13..c92c0afe4a0c163389d8e79bb93890c5bee4db9f 100644 (file)
--- a/lifeboot.asm
+++ b/lifeboot.asm
@@ -52,8 +52,15 @@ mov ah, 0x01                ; set text-mode cursor shape
 int 0x10                    ; video services
 
 ; initialize xss
 int 0x10                    ; video services
 
 ; initialize xss

+
+set_xss_seed:
+

 mov ah, 0x00                ; get
 int 0x1a                    ;  system time
 mov ah, 0x00                ; get
 int 0x1a                    ;  system time

+
+cmp dx, 0
+je set_xss_seed             ; if seed is 0, xs wont work properly
+

 mov [xss], dx               ; cx:dx = number of clock ticks since midnight
 
 ; initialize currvgapg
 mov [xss], dx               ; cx:dx = number of clock ticks since midnight
 
 ; initialize currvgapg