Kenmore 795.7105 series Use & Care Manual page 126

ExitConfig endp
;; Select The I/O Chip Program Configuration Register Logical
Device
;; Input : bl = logical device number
SelectDevice proc
push ax
push dx
mov
mov
out
jmp
mov
mov
out
pop
pop
ret
SelectDevice endp
;; Setting I/O Chip Program Configuration Register Value
;; Input : al = register number
;; ah = setting value
al,07h ;; Select control register 7
dx,cs:CONFIG_PORT
dx,al ;; Write to Config Port
$+2
al,bl ;; Write logical device number
dx,cs:DATA_PORT
dx,al
dx
ax
;; to Data Port
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