C_div_B unrolled

a_div_b:
    ld c,a
c_div_b:
;Inputs:
;     C is the numerator
;     B is the denominator (less than 128)
;Outputs:
;     A is the quotient
;     C is -1/2 the quotient
;     B,D,E,H,L are not changed
;242cc to 250cc
;61 bytes
     xor a
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     rl c \ rla \ cp b \ jr c,$+3 \ sub b
     ld a,c \ rla \ cpl
     ret