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git-svn-id: svn://coreboot.org/openbios/openbios-devel@1 f158a5a8-5612-0410-a976-696ce0be7e32
37 lines
784 B
Forth
37 lines
784 B
Forth
\ tag: forth fractal example
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\
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\ Copyright (C) 2002, 2003 Volker Poplawski <volker@poplawski.de>
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\ Stefan Reinauer
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\ This example even fits in a signature ;-)
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\ hex 4666 dup negate do i 4000 dup 2* negate do 2a 0 dup 2dup 1e 0 do
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\ 2swap * d >>a 4 pick + -rot - j + dup dup * e >>a rot dup dup * e >>a
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\ rot swap 2dup + 10000 > if 3drop 2drop 20 0 dup 2dup leave then loop
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\ 2drop 2drop type 268 +loop cr drop 5de +loop
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: fract
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4666 dup negate
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do
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i 4000 dup 2* negate
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do
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2a 0 dup 2dup 1e 0
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do
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2swap * d >>a 4 pick +
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-rot - j +
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dup dup * e >>a rot
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dup dup * e >>a rot
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swap
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2dup + 10000 > if
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3drop 2drop 20 0 dup 2dup leave
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then
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loop
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2drop 2drop
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emit
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268 +loop
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cr drop
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5de +loop
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;
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