forked from github/verilator
Support $rewind.
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@ -4,6 +4,8 @@ The contributors that suggested a given feature are shown in []. Thanks!
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* Verilator 4.023 devel
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**** Support $rewind.
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**** Add -Wpedantic for compliance testing.
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**** Add error on redefining preprocessor directives. [Piotr Binkowski]
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@ -200,6 +200,7 @@ vnum {vnum1}|{vnum2}|{vnum3}|{vnum4}|{vnum5}
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"$recovery" { FL; return yaTIMINGSPEC; }
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"$recrem" { FL; return yaTIMINGSPEC; }
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"$removal" { FL; return yaTIMINGSPEC; }
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"$rewind" { FL; return yD_REWIND; }
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"$rtoi" { FL; return yD_RTOI; }
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"$setup" { FL; return yaTIMINGSPEC; }
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"$setuphold" { FL; return yaTIMINGSPEC; }
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@ -538,6 +538,7 @@ class AstSenTree;
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%token<fl> yD_READMEMH "$readmemh"
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%token<fl> yD_REALTIME "$realtime"
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%token<fl> yD_REALTOBITS "$realtobits"
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%token<fl> yD_REWIND "$rewind"
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%token<fl> yD_RIGHT "$right"
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%token<fl> yD_RTOI "$rtoi"
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%token<fl> yD_SFORMAT "$sformat"
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@ -2952,6 +2953,7 @@ system_f_call_or_t<nodep>: // IEEE: part of system_tf_call (can be task or func)
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| yD_RANDOM parenE { $$ = new AstRand($1); }
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| yD_REALTIME parenE { $$ = new AstTimeD($1); }
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| yD_REALTOBITS '(' expr ')' { $$ = new AstRealToBits($1,$3); }
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| yD_REWIND '(' idClassSel ')' { $$ = new AstFSeek($1, $3, new AstConst($1, 0), new AstConst($1, 0)); }
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| yD_RIGHT '(' exprOrDataType ')' { $$ = new AstAttrOf($1,AstAttrType::DIM_RIGHT,$3,NULL); }
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| yD_RIGHT '(' exprOrDataType ',' expr ')' { $$ = new AstAttrOf($1,AstAttrType::DIM_RIGHT,$3,$5); }
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| yD_RTOI '(' expr ')' { $$ = new AstRToIS($1,$3); }
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@ -247,6 +247,9 @@ module t;
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if ($fseek(file, 0, 2) != 0) $stop;
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v_off = $ftell(file);
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if (v_off < v_length) $stop;
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if ($rewind(file) != 0) $stop;
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v_off = $ftell(file);
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if (v_off != 0) $stop;
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$fclose(file);
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end
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