Four-bit Ring Counter Sequences
| Straight ring/Overbeck counter | Twisted ring/Johnson counter | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| State | Q0 | Q1 | Q2 | r3 | State | Q0 | Q1 | r2 | Q3 | |
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | |
| 2 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 0 | 0 | |
| 3 | 0 | 0 | 0 | 1 | 3 | 1 | 1 | 1 | 0 | |
| 0 | 1 | 0 | 0 | 0 | 4 | 1 | 1 | 1 | 1 | |
| 1 | 0 | 1 | 0 | 0 | 5 | 0 | 1 | 1 | 1 | |
| 2 | 0 | 0 | 1 | 0 | 6 | 0 | 0 | 1 | 1 | |
| 3 | 0 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 1 | |
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
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Famous quotes containing the words ring and/or counter:
“I started out very quiet and I beat Turgenev. Then I trained hard and I beat de Maupassant. I’ve fought two draws with Stendhal, and I think I had an edge in the last one. But nobody’s going to get me in any ring with Tolstoy unless I’m crazy or I keep getting better.”
—Ernest Hemingway (1899–1961)
“Often, when there is a conflict between parent and child, at its very hub is an expectation that the child should be acting differently. Sometimes these expectations run counter what is known about children’s growth. They stem from remembering oneself, but usually at a slightly older age.”
—Ellen Galinsky (20th century)