mirror of https://git.sr.ht/~rabbits/uxn
37 lines
691 B
Tal
37 lines
691 B
Tal
( Primes:
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An integer greater than one is called a prime number
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if its only positive divisors are one and itself. )
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|0100 ( -> ) @reset
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#0000 INC2k
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&loop
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DUP2 not-prime ?&skip
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DUP2 print/short #2018 DEO
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&skip
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INC2 NEQ2k ?&loop
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POP2 POP2
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( halt ) #010f DEO
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BRK
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@not-prime ( number* -- flag )
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DUP2 ,&t STR2
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( range ) #01 SFT2 #0002 LTH2k ?&fail
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&loop
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[ LIT2 &t $2 ] OVR2 ( mod2 ) DIV2k MUL2 SUB2 ORA ?&continue
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&fail POP2 POP2 #01 JMP2r &continue
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INC2 GTH2k ?&loop
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POP2 POP2 #00
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JMP2r
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@print ( short* -- )
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&short ( short* -- ) SWP print/byte
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&byte ( byte -- ) DUP #04 SFT print/char
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&char ( char -- ) #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO
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JMP2r
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