jspice3 optimization routine: margins
.control
#
# Find the margins of the circuit.
#
# External vectors:
#   upper[], lower[], flags[]
#
# External system vectors:
#   oplo, ophi, value[], checkVAL1, checkN1
#
# Internal vectors:
#   ma_cnt ma_temp

let ma_cnt = 0
while (ma_cnt < 20)
    let upper[ma_cnt] = value[ma_cnt]
    let lower[ma_cnt] = value[ma_cnt]
    let ma_cnt = ma_cnt + 1
end

let ma_cnt = 0
while (ma_cnt < 20)
    if (flags[ma_cnt] = 0)
        let ma_cnt = ma_cnt + 1
        continue
    endif

    let ma_temp = value[ma_cnt]
    let checkVAL1 = value[ma_cnt]
    let checkN1 = ma_cnt
    check

    let value[ma_cnt] = ma_temp
    let lower[ma_cnt] = oplo
    let upper[ma_cnt] = ophi
    let ma_cnt = ma_cnt + 1
end

unlet ma_cnt ma_temp
.endc