Conway works (with sleeps)

[clump.git] / cells.pl

diff --git a/cells.pl b/cells.pl
new file mode 100644 (file)
index 0000000..c8a936a
--- /dev/null
+++ b/cells.pl
@@ -0,0 +1,129 @@
+#!/usr/bin/perl
+use v5.14;
+use warnings;
+use lib '.';
+
+use asm;
+
+sub send_memory_to_news {
+       my ($address) = @_;
+       alu3 alu_select_a, alu_select_a, $address, $address, $address, flag_zero, flag_zero;
+}
+
+sub flag_to_memory {
+       my ($address, $flag) = @_;
+       alu3 alu_zero, alu_select_f, 0, 0, $address, $flag, flag_zero;
+}
+
+my $flag_F = 1;
+
+sub read_write_two_ways {
+       my ($news) = @_;
+       my $memory = $news + 1;
+       send_memory_to_news 0;
+       alu3 alu_zero, alu_select_f, 0, 0, $memory, flag_news($news), flag_zero;
+       send_memory_to_news 0;
+       alu3 aluc_addAF, alus_addAF, $memory, 0, $memory, flag_news($news + 1), $flag_F;
+       flag_to_memory $memory + 1, $flag_F;
+}
+
+sub conway_step {
+       say "CONWAY STEP";
+       # write memory 0 to news
+       # read from news direction 0 into memory 1
+       # write memory 0 to news
+       # read from news direction 1, add to memory 1, write into memory 1 and flag F
+       # write flag F to memory 2
+       read_write_two_ways(0);
+
+       # write memory 0 to news
+       # read from news direction 2 into memory 3
+       # write memory 0 to news
+       # read from news direction 3, add to memory 3, write into memory 3 and flag F
+       # write flag F to memory 4
+       read_write_two_ways(2);
+
+       # write memory 0 to news
+       # read from news direction 4 into memory 5
+       # write memory 0 to news
+       # read from news direction 5, add to memory 5, write into memory 5 and flag F
+       # write flag F to memory 6
+       read_write_two_ways(4);
+
+       # write memory 0 to news
+       # read from news direction 6 into memory 7
+       # write memory 0 to news
+       # read from news direction 7, add to memory 7, write into memory 7 and flag F
+       # write flag F to memory 8
+       read_write_two_ways(6);
+
+       # read from memory 1, add to memory 3, write into memory 1 and flag F
+       add 1, 3, 1, $flag_F;
+       # read from memory 2, add to memory 4 and flag F, write into memory 2 and flag F
+       addC 2, 4, 2, $flag_F;
+       # write flag F to memory 3
+       flag_to_memory 3, $flag_F;
+
+       # read from memory 5, add to memory 7, write into memory 5 and flag F
+       add 5, 7, 5, $flag_F;
+       # read from memory 6, add to memory 8 and flag F, write into memory 6 and flag F
+       addC 6, 8, 6, $flag_F;
+       # write flag F to memory 7
+       flag_to_memory 7, $flag_F;
+
+       # read from memory 1, add to memory 5, write into memory 1 and flag F
+       add 1, 5, 1, $flag_F;
+       # read from memory 2, add to memory 6 and flag F, write into memory 2 and flag F
+       addC 2, 6, 2, $flag_F;
+       # read from memory 3, or with memory 7 and flag F, write into flag F
+       alu3 alu_or, alu_select_a, 3, 7, 3, $flag_F, $flag_F;
+
+       # should a new cell be born here? (do we have 3 neighbours?)
+       sub alu_birth { alu_of_function {; $a && $b && !$_ } }
+
+       # should a living cell survive here? (do we have 2 or 3 neighbours?)
+       sub alu_survival { alu_of_function {; $a && !$_  } }
+
+       # compute the state of this cell at the next tick
+       sub alu_step { alu_of_function {; $_ & ($a | $b) } }
+
+       # read from memory 1, and with memory 2 and not F, write into memory 1 (= birth-p)
+       alu3 alu_zero, alu_birth, 1, 2, 1, $flag_F, flag_zero;
+       # read from memory 2, and with flag not F, write into flag F (= survive-p)
+       alu3 alu_survival, alu_select_a, 2, 0, 2, $flag_F, $flag_F;
+       # read from memory 0, memory 1, and flag F, write F and (mem0 or mem1) into memory 0
+       alu3 alu_zero, alu_step, 0, 1, 0, $flag_F, $flag_F; # also zeroes out flag F
+
+       read_ 0;
+#      say 'Press enter to continue:';
+#      my $nope = <>;
+#      say 'Pressed, continuing';
+       read_ 0;
+#      read_ 1;
+#      read_ 2;
+#      read_ 3;
+#      read_ 4;
+#      read_ 5;
+#      read_ 6;
+
+       sleep 10;
+}
+
+$| = 1;
+
+# start with a blinker
+read_ 0;
+loadi 0, 0x2022;
+#sleep 100;
+
+store 0, flag_zero, 0, 0;
+read_ 0;
+read_ 0;
+sleep 10;
+
+conway_step;
+conway_step;
+conway_step;
+conway_step;
+conway_step;
+conway_step;