Broaden streaming concat context checks
This commit is contained in:
JAEUK LEE
parent
6303bc454a
commit
087d5c7280
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@ -969,6 +969,35 @@ class WidthVisitor final : public VNVisitor {
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nodep->dtypeSetInteger();
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}
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}
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bool streamImplicitUseAllowed(const AstNodeStream* nodep) const {
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const AstNode* backp = nodep->backp();
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while (true) {
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if (const AstArg* const argp = VN_CAST(backp, Arg)) {
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backp = argp->backp();
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} else if (const AstSFormatArg* const argp = VN_CAST(backp, SFormatArg)) {
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backp = argp->backp();
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} else if (VN_IS(backp, CvtArrayToArray) || VN_IS(backp, CvtArrayToPacked)
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|| VN_IS(backp, CvtPackedToArray) || VN_IS(backp, CvtPackString)
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|| VN_IS(backp, CvtUnpackedToQueue)) {
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backp = backp->backp();
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} else {
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break;
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}
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}
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if (!backp) return true; // Error elsewhere
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// IEEE allows streaming concatenations as assignment sources/targets, nested inside
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// another stream, or after an explicit cast. Other expression operands require a cast.
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return VN_IS(backp, NodeAssign) //
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|| VN_IS(backp, Var) //
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|| VN_IS(backp, MemberDType) //
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|| VN_IS(backp, Pin) //
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|| VN_IS(backp, NodeFTaskRef) //
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|| VN_IS(backp, NodeStream) //
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|| VN_IS(backp, Cast) //
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|| VN_IS(backp, CastSize) //
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|| VN_IS(backp, CastWrap);
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}
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void visit(AstNodeStream* nodep) override {
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VL_RESTORER(m_streamConcat);
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// UINFOTREE(1, nodep, "stream-in vup" << m_vup, "stream-in ");
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@ -1002,9 +1031,7 @@ class WidthVisitor final : public VNVisitor {
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}
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}
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if (m_vup->final()) {
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const AstNode* backp = nodep->backp();
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if (VN_IS(backp, SFormatArg)) backp = backp->backp();
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if (VN_IS(backp, SFormatF)) {
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if (!streamImplicitUseAllowed(nodep)) {
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nodep->v3error(
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"Streaming concatenation cannot be used in an implicitly cast context "
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"(IEEE 1800-2023 11.4.17)\n"
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@ -1,17 +1,42 @@
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%Error: t/t_display_stream_bad.v:11:15: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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%Error: t/t_display_stream_bad.v:14:15: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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11 | $display({<<{value}});
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14 | result = {<<{value}} + 1;
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| ^~
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... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
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%Error: t/t_display_stream_bad.v:12:22: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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%Error: t/t_display_stream_bad.v:15:23: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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12 | $display("%0d", {<<{value}});
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15 | result = value + {<<{value}};
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| ^~
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%Error: t/t_display_stream_bad.v:16:26: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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16 | result = value[0] ? {<<{value}} : other;
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| ^~
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%Error: t/t_display_stream_bad.v:17:16: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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17 | result = {{<<{value}}};
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| ^~
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%Error: t/t_display_stream_bad.v:18:14: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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18 | flag = ({<<{value}} == other);
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| ^~
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%Error: t/t_display_stream_bad.v:19:15: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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19 | $display({<<{value}});
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| ^~
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%Error: t/t_display_stream_bad.v:20:22: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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20 | $display("%0d", {<<{value}});
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| ^~
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%Error: t/t_display_stream_bad.v:13:29: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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%Error: t/t_display_stream_bad.v:21:29: Streaming concatenation cannot be used in an implicitly cast context (IEEE 1800-2023 11.4.17)
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: ... note: In instance 't'
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: ... Suggest use a cast
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13 | void'($sformatf("%0d", {<<{value}}));
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21 | void'($sformatf("%0d", {<<{value}}));
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| ^~
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%Error: Exiting due to
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@ -6,10 +6,19 @@
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module t;
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int value = 1;
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int other = 2;
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int result;
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bit flag;
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initial begin
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result = {<<{value}} + 1;
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result = value + {<<{value}};
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result = value[0] ? {<<{value}} : other;
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result = {{<<{value}}};
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flag = ({<<{value}} == other);
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$display({<<{value}});
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$display("%0d", {<<{value}});
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void'($sformatf("%0d", {<<{value}}));
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result = int'({<<{value}});
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end
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endmodule
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@ -5,7 +5,17 @@
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// SPDX-License-Identifier: CC0-1.0
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`define stop $stop
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`define checks(gotv,expv) do if ((gotv) != (expv)) begin $write("%%Error: %s:%0d: got='%h' exp='%h'\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
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`define checks_w(width,gotv,expv) do begin \
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logic [(width)-1:0] got_check; \
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logic [(width)-1:0] exp_check; \
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got_check = (gotv); \
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exp_check = (expv); \
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if (got_check != exp_check) begin \
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$write("%%Error: %s:%0d: got='%h' exp='%h'\n", `__FILE__,`__LINE__, got_check, exp_check); \
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`stop; \
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end \
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end while(0);
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`define checks(gotv,expv) `checks_w($bits(expv), gotv, expv)
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module t;
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logic [7:0] i_char;
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@ -69,8 +79,8 @@ module t;
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byte_pkt = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = byte_pkt;
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`checks({>>{byte_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({i_header,i_len,i_crc,i_data},{<<8{byte_pkt}});
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`checks_w(128, {>>{byte_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {i_header,i_len,i_crc,i_data},{<<8{byte_pkt}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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// //----------- SData QUEUE --------
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@ -95,7 +105,7 @@ module t;
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sdata_pkt = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = sdata_pkt;
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`checks({>>{sdata_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{sdata_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- IData QUEUE --------
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@ -111,7 +121,7 @@ module t;
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int_pkt = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = int_pkt;
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`checks({>>{int_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{int_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- QData QUEUE --------
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@ -130,7 +140,7 @@ module t;
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qdata_pkt = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = qdata_pkt;
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`checks({>>{qdata_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{qdata_pkt}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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// ----------- VLWide QUEUE --------
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@ -143,7 +153,7 @@ module t;
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/* verilator lint_off WIDTHEXPAND */
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wide129 = {<<8{i_header,i_len,i_crc,i_data}};
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`checks({>>{vlwide_pkt_129}},wide129);
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`checks_w(129, {>>{vlwide_pkt_129}},wide129);
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/* verilator lint_on WIDTHEXPAND */
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//------------------------------- REVERSE ENDIAN ------------------------------
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@ -167,8 +177,8 @@ module t;
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byte_pkt_rev = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = byte_pkt_rev;
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`checks({>>{byte_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({i_header,i_len,i_crc,i_data},{<<8{byte_pkt_rev}});
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`checks_w(128, {>>{byte_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {i_header,i_len,i_crc,i_data},{<<8{byte_pkt_rev}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- SData QUEUE --------
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@ -188,7 +198,7 @@ module t;
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sdata_pkt_rev = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = sdata_pkt_rev;
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`checks({>>{sdata_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{sdata_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- IData QUEUE --------
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@ -204,7 +214,7 @@ module t;
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int_pkt_rev = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = int_pkt_rev;
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`checks({>>{int_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{int_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- QData QUEUE --------
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@ -218,7 +228,7 @@ module t;
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qdata_pkt_rev = {<<8{i_header,i_len,i_crc,i_data}};
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{<<8{o_header,o_len,o_crc,o_data}} = qdata_pkt_rev;
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`checks({>>{qdata_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{qdata_pkt_rev}},{<<8{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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// ----------- VLWide QUEUE --------
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@ -227,7 +237,7 @@ module t;
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/* verilator lint_off WIDTHEXPAND */
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wide129 = {<<8{i_header,i_len,i_crc,i_data}};
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/* verilator lint_on WIDTHEXPAND */
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`checks({>>{vlwide_pkt_129_rev}},wide129);
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`checks_w(129, {>>{vlwide_pkt_129_rev}},wide129);
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// // -------------------- STREAMR ------------------------------------
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// //----------- CData QUEUE --------
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@ -237,21 +247,21 @@ module t;
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byte_pkt = {>>{i_header,i_len}};
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{>>{o_header,o_len}} = byte_pkt;
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`checks({>>{i_header,i_len}},{>>{o_header,o_len}});
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`checks_w(64, {>>{i_header,i_len}},{>>{o_header,o_len}});
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`checks({i_header,i_len},{o_header,o_len});
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byte_pkt = {>>{i_header,i_len,i_crc,i_data}};
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{>>{o_header,o_len,o_crc,o_data}} = byte_pkt;
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`checks({>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- IData QUEUE --------
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int_pkt = {>>{i_header}};
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o_header = {>>{int_pkt}};
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`checks(o_header,i_header);
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`checks(o_header,{>>{int_pkt}});
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`checks({>>{o_header}},{>>{int_pkt}});
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`checks_w(32, o_header,{>>{int_pkt}});
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`checks_w(32, {>>{o_header}},{>>{int_pkt}});
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//test with QData
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int_pkt = {>>{i_header,i_len}};
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@ -261,7 +271,7 @@ module t;
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int_pkt = {>>{i_header,i_len,i_crc,i_data}};
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{>>{o_header,o_len,o_crc,o_data}} = int_pkt;
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`checks({>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//----------- QData QUEUE --------
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@ -274,7 +284,7 @@ module t;
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qdata_pkt = {>>{i_header,i_len,i_crc,i_data}};
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{>>{o_header,o_len,o_crc,o_data}} = qdata_pkt;
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`checks({>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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// ----------- VLWide QUEUE --------
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@ -288,84 +298,84 @@ module t;
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vlwide_pkt_129 = {>>{i_header,i_len,i_crc,i_data}};
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{>>{o_header,o_len,o_crc,o_data}} = vlwide_pkt_129;
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`checks({>>{vlwide_pkt_129}},{>>{1'b0,i_header,i_len,i_crc,i_data}});
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`checks_w(129, {>>{vlwide_pkt_129}},{>>{1'b0,i_header,i_len,i_crc,i_data}});
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`checks({o_header,o_len,o_crc,o_data} ,{i_header,i_len,i_crc,i_data});
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//---------- into other queues ------
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int_pkt = {>>{i_header,i_len,i_crc,i_data}};
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byte_pkt = {>>{int_pkt}};
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`checks({>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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byte_pkt = {>>{i_header,i_len,i_crc,i_data}};
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int_pkt = {>>{byte_pkt}};
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`checks({>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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byte_pkt = {>>{i_header,i_len,i_crc,i_data}};
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int_pkt = {>>{byte_pkt}};
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`checks({>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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sdata_pkt = {>>{i_header,i_len,i_crc,i_data}};
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byte_pkt = {>>{sdata_pkt}};
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`checks({>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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byte_pkt = {>>{i_header,i_len,i_crc,i_data}};
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sdata_pkt = {>>{byte_pkt}};
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`checks({>>{sdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{sdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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byte_pkt = {>>{i_header,i_len,i_crc,i_data}};
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qdata_pkt = {>>{byte_pkt}};
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`checks({>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
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`checks_w(128, {>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
qdata_pkt = {>>{i_header,i_len,i_crc,i_data}};
|
||||
byte_pkt = {>>{qdata_pkt}};
|
||||
`checks({>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
qdata_pkt = {>>{i_header,i_len,i_crc,i_data}};
|
||||
int_pkt = {>>{qdata_pkt}};
|
||||
`checks({>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
int_pkt = {>>{i_header,i_len,i_crc,i_data}};
|
||||
qdata_pkt = {>>{int_pkt}};
|
||||
`checks({>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
byte_pkt = {>>{i_header,i_len,i_crc,i_data}};
|
||||
vlwide_pkt_128 = {>>{byte_pkt}};
|
||||
`checks({>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
vlwide_pkt_128 = {>>{i_header,i_len,i_crc,i_data}};
|
||||
byte_pkt = {>>{vlwide_pkt_128}};
|
||||
`checks({i_header,i_len,i_crc,i_data},{>>{byte_pkt}});
|
||||
`checks({>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {i_header,i_len,i_crc,i_data},{>>{byte_pkt}});
|
||||
`checks_w(128, {>>{byte_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
int_pkt = {>>{i_header,i_len,i_crc,i_data}};
|
||||
vlwide_pkt_128 = {>>{int_pkt}};
|
||||
`checks({i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks({>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks_w(128, {>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
vlwide_pkt_128 = {>>{i_header,i_len,i_crc,i_data}};
|
||||
int_pkt = {>>{vlwide_pkt_128}};
|
||||
`checks({i_header,i_len,i_crc,i_data},{>>{int_pkt}});
|
||||
`checks({>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {i_header,i_len,i_crc,i_data},{>>{int_pkt}});
|
||||
`checks_w(128, {>>{int_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
qdata_pkt = {>>{i_header,i_len,i_crc,i_data}};
|
||||
vlwide_pkt_128 = {>>{qdata_pkt}};
|
||||
`checks({i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks({>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks_w(128, {>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
|
||||
qdata_pkt = {>>{i_header,i_len,i_crc,i_data,i_header,i_len,i_crc,i_data}};
|
||||
vlwide_pkt_128 = {>>{qdata_pkt}};
|
||||
`checks({i_header,i_len,i_crc,i_data,i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks({>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data,i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(256, {i_header,i_len,i_crc,i_data,i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks_w(256, {>>{vlwide_pkt_128}},{>>{i_header,i_len,i_crc,i_data,i_header,i_len,i_crc,i_data}});
|
||||
|
||||
qdata_pkt = {>>{i_header,i_len,i_crc,i_data,i_header,i_len,i_crc}};
|
||||
vlwide_pkt_128 = {>>{qdata_pkt}};
|
||||
`checks({32'h0,i_header,i_len,i_crc,i_data,i_header,i_len,i_crc},{>>{vlwide_pkt_128}});
|
||||
`checks({>>{vlwide_pkt_128}},{>>{32'h0,i_header,i_len,i_crc,i_data,i_header,i_len,i_crc}});
|
||||
`checks_w(256, {32'h0,i_header,i_len,i_crc,i_data,i_header,i_len,i_crc},{>>{vlwide_pkt_128}});
|
||||
`checks_w(256, {>>{vlwide_pkt_128}},{>>{32'h0,i_header,i_len,i_crc,i_data,i_header,i_len,i_crc}});
|
||||
|
||||
vlwide_pkt_128 = {>>{i_header,i_len,i_crc,i_data}};
|
||||
qdata_pkt = {>>{vlwide_pkt_128}};
|
||||
`checks({i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks({>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
`checks_w(128, {i_header,i_len,i_crc,i_data},{>>{vlwide_pkt_128}});
|
||||
`checks_w(128, {>>{qdata_pkt}},{>>{i_header,i_len,i_crc,i_data}});
|
||||
$write("*-* All Finished *-*\n");
|
||||
$finish;
|
||||
|
||||
|
|
|
|||
|
|
@ -21,15 +21,17 @@ module t;
|
|||
pkt_if pkt_if_init (clk);
|
||||
//this will not compile without -fno-life
|
||||
initial begin
|
||||
byte byte_pkt[$];
|
||||
byte byte_pkt[$];
|
||||
byte got_pkt;
|
||||
//---------------------- STREAM WITH INTERFACE -------------------
|
||||
//using this forces verilator to a AstSel Node into a Stream Node
|
||||
#0 //make sure we dont optimize it all away in v3life
|
||||
pkt_if_init.s.extra = 8'hd;
|
||||
byte_pkt = {>>{pkt_if_init.s.extra}};
|
||||
if(8'hd == {>>{byte_pkt}}) begin
|
||||
$write("*-* All Finished *-*\n");
|
||||
$finish();
|
||||
got_pkt = {>>{byte_pkt}};
|
||||
if (8'hd == got_pkt) begin
|
||||
$write("*-* All Finished *-*\n");
|
||||
$finish();
|
||||
end
|
||||
end
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue