Deleted vestiges of old WBINVD code

diff --git a/ldlinux.asm b/ldlinux.asm
index d523ff7..31c318f 100644 (file)
--- a/ldlinux.asm
+++ b/ldlinux.asm
@@ -1045,31 +1045,6 @@ enough_ram:
 skip_checks:
 
 ;
-; We still need to check if this is a 486 or higher, and if it isn't, blank
-; out the WBINVD subroutine
-;
-%if 0
-               pushfd
-               pushfd
-               pop eax
-               mov ebx,eax
-               xor eax,(1 << 18)               ; Toggle EFLAGS.AC
-               push eax
-               popfd
-               pushfd
-               pop eax
-               popfd
-               cmp eax,ebx
-               jne is_486                      ; Is a 486 or higher, assume WBINVD works
-               mov word [flush_cache.wbinvd],09090h    ; NOP out
-is_486:
-%else
-
-%define wbinvd nop
-
-%endif
-
-;
 ; Initialization that does not need to go into the any of the pre-load
 ; areas
 ;
@@ -2003,10 +1978,9 @@ bcopy:
 ; Routines to enable and disable (yuck) A20
 ; These routines are largely cut-and-paste from the Linux setup code
 ; 
-%define        io_delay out 0EDh, ax           ; Invalid port
+%define        io_delay out 0EDh, ax           ; Invalid port (we hope)
 
 enable_a20:
-               call flush_cache
                call empty_8042
                mov al,0D1h             ; Command write
                out 064h, al
@@ -2022,7 +1996,6 @@ kbc_delay:        call empty_8042
                ret
 
 disable_a20:
-               call flush_cache
                call empty_8042
                mov al,0D1h
                out 064h, al            ; Command write
@@ -2045,10 +2018,6 @@ empty_8042:
                io_delay
                ret     
 
-flush_cache:
-.wbinvd:       wbinvd                  ; Gets NOP'd out on a 386
-               ret
-
 ;
 ; Load RAM disk into high memory
 ;