X-Git-Url: http://git.ieval.ro/?a=blobdiff_plain;f=cells.pl;fp=cells.pl;h=c8a936a8c3e09670f5f23457434772bf8ecaa070;hb=23c26e0422eda4cb868569e6c3cc4f41fe6e2864;hp=0000000000000000000000000000000000000000;hpb=5a2a82dc19c5d46c250c101202a43ee8375c2e28;p=clump.git

diff --git a/cells.pl b/cells.pl
new file mode 100644
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;