`log_error()` causes an exit so we don't have to try too hard here. The main
thing is to ensure that we normally are able to exit without causing a stack
overflow due to recursive asserts about not being in a `Multithreaded` context.
Add simulation models, techmap, and dfflegalize rules for Gowin
DL-series latch primitives. Latches use the same physical BEL as
DFFs with REGMODE set to LATCH. All 12 variants are supported:
DL, DLE, DLN, DLNE, DLC, DLCE, DLNC, DLNCE, DLP, DLPE, DLNP, DLNPE.
`mem_gen.py` based on quicklogic tests.
Remove BUFG from `lutram.ys`.
Extra `sync_ram_sp` models in `arch/common/blockram.v`.
Add analogdevices to main makefile tests.
Not all the other tests are passing, but that's fine for now.
Tested all the accepted configurations in eXpreso, disabling the RBRAM2 configs that fail to place, and increasing the cost for the double site TDP memories.
Specifically, the SDP configurations for RBRAM (ignoring 2048x09 because it makes the memlib format unhappy).
Drop the unused defines from the synth pass.
Remove comments from the lutram files referencing xilinx.
This commit adds support for SystemVerilog array-to-array assignment
operations that were previously unsupported:
1. Direct array assignment: `b = a;`
2. Array ternary expressions: `out = sel ? a : b;`
Both single-dimensional and multi-dimensional unpacked arrays are
supported. The implementation expands these array operations during
AST simplification into element-wise assignments.
Example of now-supported syntax:
```systemverilog
wire [7:0] state_regs[8];
wire [7:0] r[8];
wire [7:0] sel[8];
assign sel = condition ? state_regs : r;
```
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
According to the latest documentation from GOWIN -
"UG285-1.4E Gowin BSRAM & SSRAM User Guide"
The dual port BSRAM of all 55nm devices (including GW1N, GW2A and GW1A
series) does not support the read-before-write mode (WRITE_MODE = 2)
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
