Lines Matching refs:ax

33 	push ax
36 	pop ax
41 %macro WRITEHEX4 0-1 ax
42 %ifnidni %1,ax
43 	push ax
44 	mov ax,%1
46 	pop ax
153 		mov [cs:SavedAX],ax
154 		mov ax,cs
155 		mov ss,ax
184 		mov ax,[cs:SavedAX]
202 		push ax
205 		mov ax,[bp+2]		; Flags
210 		pop ax
224 		mov ds,ax
225 		mov es,ax
226 		mov ax,[SavedAX]
243 		mov di,ax
248 		mov P_AX,ax
271 		xor ax,ax		; Bottom of memory
272 		mov es,ax
292 		pop ax			; Drop return address
322 		pop ax			; Drop return address
323 		xor ax,ax		; Success...
327 		xor ax,ax
328 		mov es,ax
342 		movzx ax,P_AL		; AH = 0, AL = transfer count
371 		xor ax,ax		; Always successful
385 		mov ax,[Cylinders]
386 		dec ax			; We report the highest #, not the count
390 		mov P_CX,ax
391 		mov ax,[Heads]
392 		dec ax
416 		xor ax,ax
433 		pop ax			; Drop return address
434 		xor ax,ax		; Success
443 		xor ax,ax
453 		xor ax,ax
459 		xor ax,ax
475 		cmp cx,ax
477 		mov cx,ax
480 		mov ax,cx
486 		xor ax,ax
490 		mov ax,0100h
512 		cmp di,ax
540 .overrun:	pop ax			; Drop setup_regs return address
541 		mov ax,0200h		; Missing address mark
570 		mov ax,0900h		; "Data boundary error" - bogus, but
596 		mov ax,0100h		; Invalid command
598 		pop ax			; Drop setup_regs return address
602 		mov ax,0200h		; "Address mark not found" =
607 		pop ax
611 		mov ax,0B200h		; Volume Not Removable
616 		mov ax,[cs:SavedAX]
631 		mov ax,0		; Success
638 		mov ax,100h		; Invalid parameter
696 		cmp ax,0E820h
698 		cmp ax,0E801h
700 		cmp ax,0E881h
708 		mov ax,[cs:Mem1MB]
709 		mov cx,ax
723 		mov ax,[cs:MemInt1588]
745 		smsw ax			; Unprivileged!
773 		xor ax,ax
774 		mov ds,ax
775 		dec ax
776 		mov es,ax
778 		mov ax,[0]
779 		mov bx,ax
781 		not ax
782 		mov [0],ax
783 		mov dx,ax
785 		not ax
786 		mov [0],ax
792 		mov ax,2401h		; Enable A20
827 		mov ax,2400h		; Disable A20