X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=3sys;a=blobdiff_plain;f=sys1%2Fkern%2Fsrc%2Fmem.asm;fp=sys1%2Fkern%2Fsrc%2Fmem.asm;h=54c04f3b38f13aa449e83c2e6e1e5312e960a2f8;hp=3a4bf8543806fbea25f5a3b992cff853362f5b4b;hb=e05574a9511e724651361905620f96666c7acb04;hpb=aac04321fda4094e8623a10ed39d2916ada40ccf

diff --git a/sys1/kern/src/mem.asm b/sys1/kern/src/mem.asm
index 3a4bf85..54c04f3 100644
--- a/sys1/kern/src/mem.asm
+++ b/sys1/kern/src/mem.asm
@@ -10,8 +10,26 @@ set_gdt:
 	lgdt [gdtlim]
 	ret
 
+	global setup_selectors
+setup_selectors:
+	; set data selectors directly
+	mov ax, [esp + 8]
+	mov ss, ax
+	mov es, ax
+	mov ds, ax
+	mov gs, ax
+	mov fs, ax
+	; set cs with a long jump
+	mov ax, [esp + 4]
+	mov [jseg], ax
+	mov dword [joffs], .setcs
+	jmp far [joffs]
+.setcs: ret
+	
+
 	align 4
-	dw 0
+joffs	dd 0
+jseg	dw 0
 gdtlim	dw 0
 gdtbase dd 0