VintageCalc - A delay-line memory calculator on an FPGA

Addition
two small operands / two large operands / overflow

123.456 + 987.654 = 1111.110
122,222,222,222.344 + 677,777,777,777.889 = 800,000,000,000.233
122,222,222,222.334 + 977,777,777,777.889 = (overflow)100,000,000,000.223

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Subtraction
two small operands / two large operands

123.456 - 987.654 = -864.198
122,222,222,222.334 - 677,777,777,777.889 = -555,555,555,555.555

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Multiplication
two small operands / two large operands

123.456 x 987.654 = 121,931.812
122,222.334 x 67,777.889 = 8,283,971,787.172

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Division
two small operands / two large operands

123.456 / 987.654 = 0.125
677,777,777,777.889 / 122,222,222,222.334 = 5.545

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