# ALU Pins | Nr| ACC | RAM | Y | |:-:|:----:|:----:|:----:| | 0 | 1-27 | 1-39 | 1-22 | | 1 | 1-28 | 1-40 | 1-21 | | 2 | 1-29 | 1-41 | 1-20 | | 3 | 1-30 | 1-42 | 1-19 | | 4 | 1-31 | 1-5 | 1-18 | | 5 | 1-32 | 1-6 | 1-16 | | 6 | 1-6 | 1-7 | 1-14 | | 7 | 1-38 | 1-8 | 1-13 | | 8 | 2-27 | 2-39 | 2-21 | | 9 | 2-28 | 2-40 | 2-20 | | A | 2-29 | 2-2 | 2-19 | | B | 2-30 | 2-3 | 2-18 | | C | 2-31 | 2-5 | 2-16 | | D | 2-32 | 2-6 | 2-14 | | E | 2-37 | 2-7 | 2-13 | | F | 2-38 | 2-8 | 2-12 | | F | 1 | 2 | |:-:|:--:|:--:| | 0 | 43 | 44 | | 1 | 44 | 43 | | 2 | 1 | 42 | | 3 | 2 | 41 | CO (1-9) -> CI (2-24)