boolean mode = false;
BitFifo.BitStorage outBits = new BitFifo.BitStorage(74);
public void service() {
+ if (outBits.size() >= 37) {
+ if (box_outBits.readyForDataFromShip()) {
+ box_outBits.addDataFromShip(outBits.get(37));
+ }
+ } else
if (box_in1.dataReadyForShip() &&
box_in2.dataReadyForShip() &&
box_in3.dataReadyForShip() &&
long v2 = box_in2.removeDataForShip();
long v3 = box_in3.removeDataForShip();
long o1, o2, o3;
- mode = true;
- if (!mode) {
- o1 = v1;
- o2 = v2 >>> 1;
- o3 = ((v2 & 0x1L) == 0) ? 0 : v1;
- } else {
- o1 = ((v1 & v2) | (v2 & v3) | (v1 & v3))/* << 1*/;
- o2 = (v1 ^ v2 ^ v3) >> 1;
- o3 = 0;
- outBits.add((v1 ^ v2 ^ v3) & 0x1L, 1);
- }
+ o1 = ((v1 & v2) | (v2 & v3) | (v1 & v3))/* << 1*/;
+ o2 = (v1 ^ v2 ^ v3) >> 1;
+ o3 = 0;
+ outBits.add((v1 ^ v2 ^ v3) & 0x1L, 1);
box_out1.addDataFromShip(o1);
box_out2.addDataFromShip(o2);
box_out3.addDataFromShip(o3);
- mode = !mode;
- }
-
- if (box_outBits.readyForDataFromShip() &&
- outBits.size() >= 37) {
- box_outBits.addDataFromShip(outBits.get(37));
}
}
reg have_out1; initial have_out1 = 0;
reg have_out2; initial have_out2 = 0;
reg have_out3; initial have_out3 = 0;
- reg [73:0] bitstorage;
+ reg [73:0] bitstorage; initial bitstorage = 0;
reg [7:0] bitstorage_count; initial bitstorage_count = 0;
reg wrote; initial wrote = 0;
always @(posedge clk) begin
wrote = 0;
- if (have_out1) begin
+ if (bitstorage_count >= `DATAWIDTH) begin
+ outBits_d = bitstorage[(`DATAWIDTH-1):0];
+ `onwrite(outBits_r, outBits_a)
+ bitstorage_count <= 0;
+ bitstorage = bitstorage >> `DATAWIDTH;
+ end
+ end else if (have_out1) begin
`onwrite(out1_r, out1_a) have_out1 <= 0; end
end else if (have_out2) begin
`onwrite(out2_r, out2_a) have_out2 <= 0; end
end else if (!have_in3) begin
`onread(in3_r, in3_a) have_in3 <= 1; keep_in3 <= in3_d; end
end else begin
- mode = 1;
- if (mode == 0) begin
- out1_d <= keep_in1;
- out2_d <= { 1'b0, keep_in2[(`DATAWIDTH-1):1] };
- out3_d <= (keep_in2[0]==0) ? 0 : keep_in1;
- end else begin
out1_d <= { ((keep_in1 & keep_in2) | (keep_in2 & keep_in3) | (keep_in1 & keep_in3)) };
- out2_d <= (keep_in1 ^ keep_in2 ^ keep_in3) >> 1;
+ out2_d <= { 1'b0, (keep_in1[(`DATAWIDTH-1):1] ^
+ keep_in2[(`DATAWIDTH-1):1] ^
+ keep_in3[(`DATAWIDTH-1):1]) };
out3_d <= 0;
- bitstorage_count <= bitstorage_count+1;
- bitstorage[bitstorage_count] = (keep_in1[0] ^ keep_in2[0] ^ keep_in3[0]);
- outBits_d = bitstorage[(`DATAWIDTH-1):0];
- wrote = 1;
- end
+ bitstorage[bitstorage_count] = (keep_in1[0] ^ keep_in2[0] ^ keep_in3[0]);
+ bitstorage_count <= bitstorage_count+1;
have_out1 <= 1;
have_out2 <= 1;
have_out3 <= 1;
have_in1 <= 0;
have_in2 <= 0;
have_in3 <= 0;
-// mode <= ~mode;
end
- if (!wrote && bitstorage_count >= `DATAWIDTH) begin
- `onwrite(outBits_r, outBits_a) begin
- bitstorage_count <= bitstorage_count - `DATAWIDTH;
- bitstorage = bitstorage >> `DATAWIDTH;
- end
- end
end
-end
+
== Test ========================================================================
#ship lut3 : Lut3
#ship bitfifo : BitFifo
#ship debug : Debug
+#ship fifo : Fifo
-#expect 31509911677
-#expect 1855678
-
-//#expect 1855683
-//#expect 1855683
-//#expect 1855683
-//#expect 1855683
-//#expect 1855683
-//#expect 1855683
-//#expect 1200000
-//#expect 1855683
-//#expect 1855683
-//#expect 1200000
-//#expect 1855683
-//#expect 1855683
-//#expect 1855683
-//#expect 1855683
-//#expect 1200000
-//#expect 1855683
-//#expect 1200000
-//#expect 1200000
-//#expect 1200000
-//#expect 1200000
-//#expect 1855683
+#expect -66848683
+#expect 18682
// 0: 100100100111110000000
// sel 011110100001001000000
// 1: 111000101000011000011
// r: 111000100110111000000
+bitfifo.in:
+ deliver; // deliver a junk word
+ literal 10000;
+ [37] deliver; // deliver it 37 times (once per bit)
+ literal 0;
+ [38] deliver; // deliver it 37 times
+
+// insert bits in lsb order
+bitfifo.inOp:
+ literal BitFifo.inOp[lsbFirst,take=37];
+ [*] deliver;
-1000000: sendto bitfifo.inEnqueue;
-0: sendto bitfifo.inEnqueue;
-bitfifo.inEnqueue: [*] take, deliver;
-bitfifo.outDequeue: [*] take, sendto lut3.in2;
-lut3.in2: [74] take, deliver;
+// toss out 37 bits, take one, repeat. sign extend the result
+bitfifo.outOp:
+ literal BitFifo.outOp[drop=37,take=1,signExtend];
+ [*] deliver;
+
+bitfifo.out: [*] wait, take, sendto lut3.in2;
+lut3.in2: [4] notify bitfifo.out;
+ [74] take, deliver, notify bitfifo.out;
// mux on second input
-226: sendto lut3.inLut;
-lut3.inLut: take;
+lut3.inLut: literal 226;
[74] deliver;
-1855683: sendto lut3.in1;
-0: sendto lut3.in1;
-lut3.in1: take;
+lut3.in1: literal 18683;
[37] deliver;
- take;
+ literal 0;
[37] deliver;
-1200000: sendto lut3.in3;
-0: sendto lut3.in3;
-lut3.in3: take;
+lut3.in3: literal 12000;
[37] deliver;
- take;
+ literal 0;
[37] deliver;
-lut3.out: [*] take, sendto alu3.in2;
-
+lut3.out: [*] wait, take, sendto alu3.in2;
-0: sendto alu3.in3;
-0: sendto alu3.in1;
-alu3.in1: [*] take, deliver;
-alu3.in2: [*] take, deliver;
-alu3.in3: [*] take, deliver;
+alu3.in1: literal 0; deliver; [*] take, deliver;
+alu3.in2: [1] notify lut3.out; [*] take, deliver, notify lut3.out;
+alu3.in3: literal 0; deliver; [*] take, deliver;
alu3.out1: [74] take, sendto alu3.in1;
alu3.out2: [74] take, sendto alu3.in3;
alu3.out3: [74] take;
-alu3.outBits: [2] take, sendto debug.in;
+alu3.outBits: [*] take, sendto debug.in;
-debug.in: [*] take, deliver;
+debug.in: [*] take, deliver;
== Contributors =========================================================
projects / fleet.git / blobdiff