VMS Help MACRO, VAX MACRO Assembler, Instructions, DIVP  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Purpose:        Divide one packed decimal string by a second
                    decimal string
    Format:         opcode divrlen.rw,divraddr.ab,divdlen.rw,
                           divdaddr.ab,quolen.rw,quoaddr.ab
    Operation:      {quo string} = {divd string} / {divr string}
    C. Codes:       N = {{quo string} LSS 0}, V = {decimal overflow},
                    Z = {{quo string} EQL 0}, C = 0
    Exceptions:     Reserved operand, decimal overflow, divide by zero
    Opcode:         27    DIVP     Divide packed
    Description:    The dividend string specified by divdlen and divdaddr
                    is divided by the divisor string specified by divrlen
                    and divraddr. The result of the division is placed in
                    the quotient string specified by quolen and quoaddr.
    Notes:          After execution:

                    R0 = 0
                    R1 = address of the byte containing the
                         most-significant digit of the divisor string
                    R2 = 0
                    R3 = address of the byte containing the
                         most-significant digit of the dividend string
                    R4 = 0
                    R5 = address of the byte containing the
                         most-significant digit of the quotient string