X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=local%2Fman%2Fcat.1%2Fmunch.1;fp=local%2Fman%2Fcat.1%2Fmunch.1;h=452f8a28274918898a1181bbb4ce12e2e73a407b;hb=3ee611d60b5c560208c27e83b0c4930596fddd8b;hp=0000000000000000000000000000000000000000;hpb=b08b6f995f8d5e0ff37d2f627bff3f61dcb75ac5;p=xscreensaver

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+                                                                1
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+XScreenSaver(1)                                   XScreenSaver(1)
+
+
+NNAAMMEE
+       munch - munching squares screen hack
+
+SSYYNNOOPPSSIISS
+       ddeeccoo  [-display  _h_o_s_t_:_d_i_s_p_l_a_y_._s_c_r_e_e_n]  [-foreground _c_o_l_o_r]
+       [-background _c_o_l_o_r] [-window] [-root]  [-mono]  [-install]
+       [-visual _v_i_s_u_a_l] [-delay _s_e_c_o_n_d_s] [-xor] [-noxor] [-shift]
+       [-noshift] [-logminwidth _m_i_n_i_m_u_m _w_i_d_t_h]
+
+DDEESSCCRRIIPPTTIIOONN
+       The _m_u_n_c_h program preforms the munching squares hack until
+       killed.   It picks square size, position, and gravity ran-
+       domly; configurable options are listed below.
+
+       The munching squares hack cosists of drawing Y = X  XOR  T
+       for  a range of X and T over and over until all the possi-
+       ble combinations of X and T have come up.  It was  report-
+       edly  discovered  by  Jackson  Wright  in  1962 and took 5
+       instructions of PDP-6 code.
+
+OOPPTTIIOONNSS
+       _m_u_n_c_h accepts the following options:
+
+       --wwiinnddooww Draw on  a  newly-created  window.   This  is  the
+               default.
+
+       --rroooott   Draw on the root window.
+
+       --mmoonnoo   If   on  a  color  display,  pretend  we're  on  a
+               monochrome display.
+
+       --iinnssttaallll
+               Install a private colormap for the window.
+
+       --vviissuuaall _v_i_s_u_a_l
+               Specify which visual to use.  Legal values are the
+               name  of a visual class, or the id number (decimal
+               or hex) of a specific visual.
+
+       --ddeellaayy _s_e_c_o_n_d_s
+               How long to wait before starting over.  Default  5
+               seconds.
+
+       --xxoorr    Use the XOR drawing function.  (Default.)
+
+       --nnoo--xxoorr Don't use the XOR drawing function.
+
+       --sshhiifftt  Start drawing the square at weird starting points.
+               (Default.)
+
+       --nnoo--sshhiifftt
+               Don't shift and start drawing the square at  weird
+               starting points.
+
+
+
+
+X Version 11                17-Jun-97                           1
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+XScreenSaver(1)                                   XScreenSaver(1)
+
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+       --llooggmmiinnwwiiddtthh _m_i_n_i_m_u_m_-_w_i_d_t_h
+               The  logarithm  (base  2) of the minimum with of a
+               square (must be a power of 2, or some parts of the
+               square aren't.)
+
+EENNVVIIRROONNMMEENNTT
+       DDIISSPPLLAAYY to get the default host and display number.
+
+       XXEENNVVIIRROONNMMEENNTT
+               to  get the name of a resource file that overrides
+               the global resources stored in  the  RESOURCE_MAN-
+               AGER property.
+
+SSEEEE AALLSSOO
+       XX(1),                                     xxssccrreeeennssaavveerr(1),
+       hhttttpp::////wwwwww..iinnwwaapp..ccoomm//ppddpp1100//hhbbaakkeerr//hhaakkmmeemm//hhaakkmmeemm..hhttmmll,,
+       hhttttpp::////wwwwww..ccoommeeddiiaa..ccoomm//HHoott//jjaarrggoonn__33..00//JJAARRGGOONN__MM//MMUUNNCCHH--
+       SSQQRR..HHTTMMLL
+
+HHIISSTTOORRYY
+       Quoted from HAKMEM, for historical interest.  As that doc-
+       ument  says,  "Unless  otherwise stated, all computer pro-
+       grams are in PDP-6/10 assembly language."
+
+       ITEM 146: MUNCHING SQUARES
+               Another simple display program. It is thought that
+               this  was  discovered by Jackson Wright on the RLE
+               PDP-1 circa 1962.
+
+                   DATAI 2
+                   ADDB 1,2
+                   ROTC 2,-22
+                   XOR 1,2
+                   JRST .-4
+
+               2=X,  3=Y.  Try  things  like  1001002   in   data
+               switches.  This  also does interesting things with
+               operations other than  XOR,  and  rotations  other
+               than  -22.  (Try  IOR; AND; TSC; FADR; FDV(!); ROT
+               -14, -9, -20, ...)
+
+       ITEM 147 (Schroeppel):
+               Munching squares is just views of the graph Y =  X
+               XOR T for consecutive values of T = time.
+
+       ITEM 148 (Cohen, Beeler):
+               A  modification  to munching squares which reveals
+               them in frozen states through opening and  closing
+               curtains: insert FADR 2,1 before the XOR. Try data
+               switches =
+
+                   4000,,4    1000,,2002    2000,,4    0,,1002
+
+               (Notation: <left half>,,<right half>)
+
+
+
+X Version 11                17-Jun-97                           2
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+XScreenSaver(1)                                   XScreenSaver(1)
+
+
+               Also try  the  FADR  after  the  XOR,  switches  =
+               1001,,1.
+
+CCOOPPYYRRIIGGHHTT
+       Copyright  (C)  1997 by Tim Showalter.  Permission to use,
+       copy, modify, distribute, and sell this software  and  its
+       documentation  for  any  purpose is hereby granted without
+       fee, provided that the above copyright  notice  appear  in
+       all  copies  and  that both that copyright notice and this
+       permission notice appear in supporting documentation.   No
+       representations  are  made  about  the suitability of this
+       software for any purpose.  It is provided "as is"  without
+       express or implied warranty.
+
+AAUUTTHHOORR
+       Tim  Showalter  <tjs@andrew.cmu.edu>,  17-Jun-97, based on
+       what's in the Jargon File and stealing stuff from existing
+       xscreensaver modules.
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+X Version 11                17-Jun-97                           3
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