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authorMiodrag Milanovic <mmicko@gmail.com>2019-09-15 09:37:16 +0200
committerMiodrag Milanovic <mmicko@gmail.com>2019-09-15 09:37:16 +0200
commit3487b95224d175d997e701430fca95d0cc51b269 (patch)
treeb7c7cd805f5e265cc1950f03ecabaf0e68deef4d /techlibs/efinix
parent4da6e19fe1c326bb86e68f4446597c2163f3fbb2 (diff)
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Added simulation models for Efinix and Anlogic
Diffstat (limited to 'techlibs/efinix')
-rw-r--r--techlibs/efinix/cells_sim.v64
1 files changed, 62 insertions, 2 deletions
diff --git a/techlibs/efinix/cells_sim.v b/techlibs/efinix/cells_sim.v
index 8c8f6afaa..a41ff1a35 100644
--- a/techlibs/efinix/cells_sim.v
+++ b/techlibs/efinix/cells_sim.v
@@ -6,6 +6,7 @@ module EFX_LUT4(
input I3
);
parameter LUTMASK = 16'h0000;
+ assign O = LUTMASK >> {I3, I2, I1, I0};
endmodule
module EFX_ADD(
@@ -17,10 +18,18 @@ module EFX_ADD(
);
parameter I0_POLARITY = 1;
parameter I1_POLARITY = 1;
+
+ wire i0;
+ wire i1;
+
+ assign i0 = I0_POLARITY ? I0 : ~I0;
+ assign i1 = I1_POLARITY ? I1 : ~I1;
+
+ assign {CO, O} = i0 + i1 + CI;
endmodule
module EFX_FF(
- output Q,
+ output reg Q,
input D,
input CE,
input CLK,
@@ -33,6 +42,51 @@ module EFX_FF(
parameter SR_VALUE = 0;
parameter SR_SYNC_PRIORITY = 0;
parameter D_POLARITY = 1;
+
+ wire clk;
+ wire ce;
+ wire sr;
+ wire d;
+ wire prio;
+ wire sync;
+ wire async;
+
+ assign clk = CLK_POLARITY ? CLK : ~CLK;
+ assign ce = CE_POLARITY ? CE : ~CE;
+ assign sr = SR_POLARITY ? SR : ~SR;
+ assign d = D_POLARITY ? D : ~D;
+
+ generate
+ if (SR_SYNC == 1)
+ begin
+ if (SR_SYNC_PRIORITY == 1)
+ begin
+ always @(posedge clk)
+ if (sr)
+ Q <= SR_VALUE;
+ else if (ce)
+ Q <= d;
+ end
+ else
+ begin
+ always @(posedge clk)
+ if (ce)
+ if (sr)
+ Q <= SR_VALUE;
+ else
+ Q <= d;
+ end
+ end
+ else
+ begin
+ always @(posedge clk or posedge sr)
+ if (sr)
+ Q <= SR_VALUE;
+ else if (ce)
+ Q <= d;
+
+ end
+ endgenerate
endmodule
module EFX_GBUFCE(
@@ -41,6 +95,12 @@ module EFX_GBUFCE(
output O
);
parameter CE_POLARITY = 1'b1;
+
+ wire ce;
+ assign ce = CE_POLARITY ? CE : ~CE;
+
+ assign O = I & ce;
+
endmodule
module EFX_RAM_5K(
@@ -104,4 +164,4 @@ module EFX_RAM_5K(
(WRITE_WIDTH == 10) ? 9 : // 512x10
(WRITE_WIDTH == 5) ? 10 : -1; // 1024x5
-endmodule \ No newline at end of file
+endmodule