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Sign extend signed vectors.

This commit is contained in:
steve 2003-06-14 22:18:54 +00:00
parent 4709c3e012
commit 2f6826247a
1 changed files with 16 additions and 4 deletions
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20
tgt-vvp/eval_expr.c
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: eval_expr.c,v 1.97 2003/06/13 19:10:20 steve Exp $"
#ident "$Id: eval_expr.c,v 1.98 2003/06/14 22:18:54 steve Exp $"
#endif
# include "vvp_priv.h"
@ -1385,9 +1385,18 @@ static void draw_signal_dest(ivl_expr_t exp, struct vector_info res)
/* Pad the signal value with zeros. */
if (swid < res.wid)
fprintf(vvp_out, " %%mov %u, 0, %u;\n",
res.base+swid, res.wid-swid);
if (swid < res.wid) {
if (ivl_expr_signed(exp)) {
for (idx = swid ; idx < res.wid ; idx += 1)
fprintf(vvp_out, " %%mov %u, %u, 1;\n",
res.base+idx, res.base+swid-1);
} else {
fprintf(vvp_out, " %%mov %u, 0, %u;\n",
res.base+swid, res.wid-swid);
}
}
}
static struct vector_info draw_signal_expr(ivl_expr_t exp, unsigned wid)
@ -2017,6 +2026,9 @@ struct vector_info draw_eval_expr(ivl_expr_t exp, int stuff_ok_flag)
/*
* $Log: eval_expr.c,v $
* Revision 1.98 2003/06/14 22:18:54 steve
* Sign extend signed vectors.
*
* Revision 1.97 2003/06/13 19:10:20 steve
* Handle assign of real to vector.
*