Thanks for taking the time to help the FPGA2600 project. If you have only a few minutes, and can recognize standard logic symbols on a schematic, you can help.

The picture on the left shows a logic element in the TIA schematic.

If the picture on the left is confusing, the picture on the right shows the same element with a blue dot in it, under green crosshairs. (If there is more than one blue dot, we're only interested in the one under the green crosshairs, right in the middle of the picture).

If you're not sure what sort of answers we're looking for, you can check out these examples.

Please do as many as you can. If you get bored, stop and go do something else for a while.

---

What kind of logic element is this? I don't know an inverter an inverter with enable 2 input AND gate 2 input AND gate with enable 3 input AND gate AND gate with lots of inputs 2 input NAND gate 2 input NAND gate with enable 3 input NAND gate NAND gate with lots of inputs 2 input OR gate 2 input OR gate with enable 3 input OR gate OR gate with lots of inputs 2 input NOR gate 2 input NOR gate with enable 3 input NOR gate NOR gate with lots of inputs just a plain box with no writing in it an S/R latch a box with "D1" in it a box with "DIR" in it a box with "D2" in it a box with "DL" in it a box with "F1" in it a box with "F2" in it a box with "F3" in it a box with "FR" in it a box with "L" in it a lone transistor with one leg going to ground a lone transistor with one leg going to Vcc a lone transistor with logic elements around it (may or may not have an asterix) some kind of line with open circles on it some other weird thing a buffer

---

Again, thank you for helping. The data entered here will be used to generate the VHDL code for the TIA used in the FPGA2600 project. FPGA2600 is a GPL project to implement the entire atari 2600 on a single FPGA using a hardware description language.