IBT MB875 User Manual page 62

APPENDIX
; Name : Read_Reg
; IN : CL - register index
; OUT : AL - Value to read
;[]=================================================
==
Read_Reg Proc
Mov al, cl
mov dx, 4Eh
out dx, al
inc dx
in al, dx
ret
Read_Reg Endp
;[]================================================
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MB890 User's Manual