Yes, according to IBM's presentations, BigDecimal in their JVM uses 64-bit DFP instructions on their hardware. Minimum hardware level is POWER6 or Z10 (Z9 suppo

Yes, according to IBM's presentations, BigDecimal in their JVM uses 64-bit DFP instructions on their hardware. Minimum hardware level is POWER6 or Z10 (Z9 supported via microcode). http://www.ibm.com/developerworks/rational/cafe/docBodyAttachments/3212-102-1-6349/DecimalFloatingPoint.pdf http://www.ibm.com/developerworks/rational/cafe/docBodyAttac...