Housekeeping
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affab72624
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330dbcbe3a
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@ -94,24 +94,22 @@ JMP2r
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NIP NIP
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NIP NIP
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JMP2r
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JMP2r
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&m 1f 1c 1f 1e 1f 1e 1f 1f 1e 1f 1e 1f
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&m [ 1f 1c 1f 1e 1f 1e 1f 1f 1e 1f 1e 1f ]
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@is-leap-year ( year* -- bool )
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@is-leap-year ( year* -- bool )
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( leap year if perfectly divisible by 400 )
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( leap year if perfectly divisible by 400 )
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DUP2 #0190 ( MOD2 ) DIV2k MUL2 SUB2 #0000 EQU2 ?&leap
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DUP2 #0190 ( MOD2 ) DIV2k MUL2 SUB2 #0000 EQU2 ?&leap
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( not a leap year if divisible by 100 )
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( not a leap year if divisible by 100, but not divisible by 400 )
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( but not divisible by 400 )
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DUP2 #0064 ( MOD2 ) DIV2k MUL2 SUB2 #0000 EQU2 ?¬-leap
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DUP2 #0064 ( MOD2 ) DIV2k MUL2 SUB2 #0000 EQU2 ?¬-leap
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( leap year if not divisible by 100 )
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( leap year if not divisible by 100, but divisible by 4 )
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( but divisible by 4 )
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#0003 AND2 #0000 EQU2
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DUP2 #0003 AND2 #0000 EQU2 ?&leap
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JMP2r
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( all other years are not leap years )
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¬-leap
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¬-leap
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POP2 #00
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POP2 #00
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JMP2r
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&leap
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POP2 #01
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JMP2r
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JMP2r
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&leap POP2 #01 JMP2r
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@print-greg ( doty* year* -- )
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@print-greg ( doty* year* -- )
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