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Fix DPI import output of 64 bits, bug398.

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This commit is contained in:
Wilson Snyder 2011-10-07 19:47:10 -04:00
parent ca2db37039
commit e080b9d565
4 changed files with 13 additions and 0 deletions
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2
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@ -13,6 +13,8 @@ indicates the contributor was also the author of the fix; Thanks!
*** Fix --help output to go to stderr, not stdout, bug397. [Ruben Diez]
**** Fix DPI import output of 64 bits, bug398. [Mike Denio]
**** Fix MSVC compile warning with trunc/round, bug394. [Amir Gonnen]
**** Fix autoconf and Makefile warnings, bug396. [Ruben Diez]

5
src/V3Task.cpp
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@ -618,6 +618,11 @@ private:
stmt += "VL_CVT_VP_Q(";
ket += ")";
}
else if (portp->basicp() && portp->basicp()->isBitLogic() && portp->widthMin() != 1 && portp->isQuad()) {
// SV is vector, Verilator isn't
stmt += "VL_SET_QW(";
ket += ")";
}
if (!cvt
&& portp->basicp() && portp->basicp()->isBitLogic() && portp->widthMin() != 1 && !portp->isWide())
stmt += "*"; // it's a svBitVecVal, which other code won't think is arrayed (as WData aren't), but really is

2
test_regress/t/t_dpi_import.v
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@ -55,6 +55,7 @@ module t ();
`ifndef NO_SHORTREAL
import "DPI-C" pure function void dpii_v_shortreal(input shortreal i, output shortreal o);
`endif
import "DPI-C" pure function void dpii_v_bit64 (input bit [64-1:0] i, output bit [64-1:0] o);
import "DPI-C" pure function void dpii_v_bit95 (input bit [95-1:0] i, output bit [95-1:0] o);
import "DPI-C" pure function void dpii_v_bit96 (input bit [96-1:0] i, output bit [96-1:0] o);
@ -161,6 +162,7 @@ module t ();
`ifndef NO_SHORTREAL
dpii_v_shortreal(i_f,o_f); if (o_f != i_f+1.5) $stop;
`endif
dpii_v_bit64 (i_b64,o_b64); if (o_b64 !== ~i_b64) $stop;
dpii_v_bit95 (i_b95,o_b95); if (o_b95 !== ~i_b95) $stop;
dpii_v_bit96 (i_b96,o_b96); if (o_b96 !== ~i_b96) $stop;

4
test_regress/t/t_dpi_import_c.cpp
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@ -101,6 +101,10 @@ void dpii_v_string (const char* i, const char** o) { *o = i; }
void dpii_v_real (double i, double* o) { *o = i + 1.5; }
void dpii_v_shortreal(float i, float* o) { *o = i + 1.5; }
void dpii_v_bit64(const svBitVecVal* i, svBitVecVal* o) {
o[0] = ~i[0];
o[1] = ~i[1];
}
void dpii_v_bit95(const svBitVecVal* i, svBitVecVal* o) {
o[0] = ~i[0];
o[1] = ~i[1];