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nextpnr
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Author SHA1 Message Date
YRabbit fb5f764b85 gowin: Add himbaechel arch 
- wires, nodes and whites are generated from bases - apicula;
- roting of SN and EW bidirectional wires is supported;
- supports "wrapping" the wires at the edges of the chip;
- LUT1-4 and two types of DFF(R) are supported;
- simple IO is supported.

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
 2023-08-31 08:28:09 +02:00
YRabbit 24e1734999 generate bba 
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
 2023-08-31 08:28:09 +02:00
YRabbit bc7cd4f20e wip start 2023-08-31 08:28:09 +02:00