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| author | Miodrag Milanovic <mmicko@gmail.com> | 2019-09-18 17:45:07 +0200 |
|---|---|---|
| committer | Miodrag Milanovic <mmicko@gmail.com> | 2019-09-18 17:45:07 +0200 |
| commit | 8badd4d812e30c79a3fe75694ef8d8289f08abc7 (patch) | |
| tree | 1f290e9521e2b031cc16eef8860c4aa23aa6f343 /techlibs/efinix/cells_sim.v | |
| parent | 3487b95224d175d997e701430fca95d0cc51b269 (diff) | |
| download | yosys-8badd4d812e30c79a3fe75694ef8d8289f08abc7.tar.gz yosys-8badd4d812e30c79a3fe75694ef8d8289f08abc7.tar.bz2 yosys-8badd4d812e30c79a3fe75694ef8d8289f08abc7.zip | |
better handling of lut and begin/end add
Diffstat (limited to 'techlibs/efinix/cells_sim.v')
| -rw-r--r-- | techlibs/efinix/cells_sim.v | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/techlibs/efinix/cells_sim.v b/techlibs/efinix/cells_sim.v index a41ff1a35..2fc2034a6 100644 --- a/techlibs/efinix/cells_sim.v +++ b/techlibs/efinix/cells_sim.v @@ -5,8 +5,12 @@ module EFX_LUT4( input I2, input I3 ); - parameter LUTMASK = 16'h0000; - assign O = LUTMASK >> {I3, I2, I1, I0}; + parameter LUTMASK = 16'h0000; + + wire [7:0] s3 = I3 ? LUTMASK[15:8] : LUTMASK[7:0]; + wire [3:0] s2 = I2 ? s3[ 7:4] : s3[3:0]; + wire [1:0] s1 = I1 ? s2[ 3:2] : s2[1:0]; + assign O = I0 ? s1[1] : s1[0]; endmodule module EFX_ADD( @@ -71,10 +75,12 @@ module EFX_FF( begin always @(posedge clk) if (ce) + begin if (sr) Q <= SR_VALUE; else - Q <= d; + Q <= d; + end end end else @@ -164,4 +170,4 @@ module EFX_RAM_5K( (WRITE_WIDTH == 10) ? 9 : // 512x10 (WRITE_WIDTH == 5) ? 10 : -1; // 1024x5 -endmodule +endmodule
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