== TeX ==============================================================
-This ship implements a 3-input {\bf L}ook {\bf U}p {\bf T}able. The
-least significant eight bits of the {\tt inLut} value form a truth
-table with three inputs and one output.
+This ship implements a bitwise 3-input {\bf L}ook {\bf U}p {\bf
+T}able. The least significant eight bits of the {\tt inLut} value
+form a truth table with three inputs and one output.
When values are available at all four inputs they are consumed and a
value is produced at {\tt out}. Each bit of {\tt out} is produced by
as a bit index into {\tt inLut}'s value (whose least significant bit
is considered ``bit zero'').
-The ship-specific constants refer to commonly-used truth tables for
-{\it two-input} functions; these constant truth tables are invariant
-under input {\tt in3}.
== Fleeterpreter ====================================================
public void service() {
// cycle through truth tables using alu as INC
alu.inOp:
literal 1;
- [120] deliver;
- [120] deliver;
- [15] deliver;
+ load repeat counter with 63;
+ deliver;
+ load repeat counter with 63;
+ deliver;
+ load repeat counter with 63;
+ deliver;
+ load repeat counter with 63;
+ deliver;
+ load repeat counter with 3;
+ deliver;
alu.in:
literal 0;
deliver;
[*] take, deliver;
alu.out:
- [*] nop;
- (*) wait, take, sendto lut.inLut;
- (*) sendto alu.in;
- kill*;
+ clog;
+ load loop counter with 2;
+ wait, take, sendto lut.inLut;
+ sendto alu.in;
+ unclog;
// acks from debug ship trigger new truth tables
-debug.in: [*] take, deliver, notify alu.out;
+debug.in:
+ [*] take, deliver, notify alu.out;
lut.inLut:
literal 0;