X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Farch%2Fx86%2Fproc.asm;h=20a4fd7806782da1c5fd49f7a9cb492a5239654d;hb=3998cfbbadb005bf3ad52ea2538dc21f82864ddc;hp=cefd7963d58b2fe619a88457c31abd7724e750ed;hpb=f24c301371fbcb5ee42c5118f61f7304cb989746;p=tpg%2Facess2.git

diff --git a/Kernel/arch/x86/proc.asm b/Kernel/arch/x86/proc.asm
index cefd7963..20a4fd78 100644
--- a/Kernel/arch/x86/proc.asm
+++ b/Kernel/arch/x86/proc.asm
@@ -236,6 +236,13 @@ GetCPUNum:
 
 ; Usermode code exported by the kernel
 [section .usertext]
+; Export a place for the user to jump to to call a syscall
+; - Allows the kernel to change the method easily
+User_Syscall:
+	xchg bx, bx
+	int 0xAC
+
+; A place to return to and exit
 User_Syscall_RetAndExit:
 	push eax
 	call User_Syscall_Exit