mirror of https://git.sr.ht/~rabbits/uxn
40 lines
749 B
Tal
40 lines
749 B
Tal
( Primes:
|
|
An integer greater than one is called a prime number
|
|
if its only positive divisors are one and itself. )
|
|
|
|
|0100 ( -> ) @reset
|
|
|
|
#0000 INC2k
|
|
&loop
|
|
DUP2 ,is-prime JSR #00 EQU ,&skip JCN
|
|
( print ) DUP2 ,print/short JSR
|
|
( space ) #2018 DEO
|
|
&skip
|
|
INC2 NEQ2k ,&loop JCN
|
|
POP2 POP2
|
|
( halt ) #010f DEO
|
|
|
|
BRK
|
|
|
|
@is-prime ( number* -- flag )
|
|
|
|
DUP2 ,&t STR2
|
|
( range ) #01 SFT2 #0002 LTH2k ,&fail JCN
|
|
&loop
|
|
[ LIT2 &t $2 ] OVR2
|
|
( mod2 ) DIV2k MUL2 SUB2
|
|
ORA #00 EQU ,&fail JCN
|
|
INC2 GTH2k ,&loop JCN
|
|
POP2 POP2 #01
|
|
|
|
JMP2r
|
|
&fail POP2 POP2 #00 JMP2r
|
|
|
|
@print ( short* -- )
|
|
|
|
&short ( short* -- ) SWP ,&byte JSR
|
|
&byte ( byte -- ) DUP #04 SFT ,&char JSR
|
|
&char ( char -- ) #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO
|
|
|
|
JMP2r
|