RoundHL_Div_C

RoundHL_Div_C:
;Inputs:
;     HL is the numerator
;     C is the denominator
;Outputs:
;     A is twice the remainder of the unrounded value
;     B is 0
;     C is not changed
;     DE is not changed
;     HL is the rounded quotient
;     c flag set means no rounding was performed
;            reset means the value was rounded
;
       ld b,16
       xor a
         add hl,hl
         rla
         cp c
         jr c,$+4
           inc l
           sub c
         djnz $-7
       add a,a
       cp c
       jr c,$+3
         inc hl
       ret