Long multiplication: Difference between revisions
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"/ as the language does not specify, how many bits are used to represent |
"/ as the language does not specify, how many bits are used to represent |
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"/ SmallIntegers, and when the VM uses LargeInts. |
"/ SmallIntegers, and when the VM uses LargeInts. |
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"/ Lets assume, we run on a |
"/ Lets assume, we run on a 2-digit decimal machine (smile). |
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"/ So lets work hard to avoid any convenient VM support, |
"/ So lets work hard to avoid any convenient VM support, |
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"/ by doing decimal arithmetic (running on a decimal machine from the |
"/ by doing decimal arithmetic (running on a decimal machine from the 1940s) |
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"/ and only allow 0..99 in a word |
"/ and only allow 0..99 in a word (assuming it has a 2*2->4 digit multiply available) |
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"/ (smile: remember Knuth |
"/ (smile: remember the Knuth MIX machine?) |
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"/ the code below should never ever been taken serious |
"/ the code below should never ever been taken serious |
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