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Pad part selects

This commit is contained in:
steve 2005-12-22 15:42:22 +00:00
parent c071cc1bbe
commit e9bf00dff6
1 changed files with 13 additions and 3 deletions
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16
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#ifdef HAVE_CVS_IDENT #ifdef HAVE_CVS_IDENT
#ident "$Id: eval_expr.c,v 1.127 2005/10/11 18:54:10 steve Exp $" #ident "$Id: eval_expr.c,v 1.128 2005/12/22 15:42:22 steve Exp $"
#endif #endif
# include "vvp_priv.h" # include "vvp_priv.h"
@ -1629,6 +1629,7 @@ static struct vector_info draw_memory_expr(ivl_expr_t exp, unsigned wid)
static struct vector_info draw_select_signal(ivl_expr_t sube, static struct vector_info draw_select_signal(ivl_expr_t sube,
ivl_expr_t bit_idx, ivl_expr_t bit_idx,
unsigned bit_wid,
unsigned wid) unsigned wid)
{ {
ivl_signal_t sig = ivl_expr_signal(sube); ivl_signal_t sig = ivl_expr_signal(sube);
@ -1665,7 +1666,7 @@ static struct vector_info draw_select_signal(ivl_expr_t sube,
res.wid = ivl_expr_width(sube); res.wid = ivl_expr_width(sube);
fprintf(vvp_out, " %%load/v %u, V_%p, %u; Only need %u bits\n", fprintf(vvp_out, " %%load/v %u, V_%p, %u; Only need %u bits\n",
res.base, sig, ivl_expr_width(sube), wid); res.base, sig, ivl_expr_width(sube), wid);
save_signal_lookaside(res.base, sig, res.wid); save_signal_lookaside(res.base, sig, res.wid);
{ {
@ -1683,6 +1684,12 @@ static struct vector_info draw_select_signal(ivl_expr_t sube,
res.wid = wid; res.wid = wid;
for (idx = 0 ; idx < res.wid ; idx += 1) { for (idx = 0 ; idx < res.wid ; idx += 1) {
if (idx >= bit_wid) {
fprintf(vvp_out, " %%mov %u, 0, %u; Pad from %u to %u\n",
res.base+idx, res.wid-idx,
ivl_expr_width(sube), wid);
break;
}
fprintf(vvp_out, " %%load/x.p %u, V_%p, 0;\n", fprintf(vvp_out, " %%load/x.p %u, V_%p, 0;\n",
res.base+idx, sig); res.base+idx, sig);
} }
@ -1711,7 +1718,7 @@ static struct vector_info draw_select_expr(ivl_expr_t exp, unsigned wid,
} }
if (ivl_expr_type(sube) == IVL_EX_SIGNAL) { if (ivl_expr_type(sube) == IVL_EX_SIGNAL) {
res = draw_select_signal(sube, shift, wid); res = draw_select_signal(sube, shift, ivl_expr_width(exp), wid);
fprintf(vvp_out, "; Save base=%u wid=%u in lookaside.\n", fprintf(vvp_out, "; Save base=%u wid=%u in lookaside.\n",
res.base, wid); res.base, wid);
save_expression_lookaside(res.base, exp, wid); save_expression_lookaside(res.base, exp, wid);
@ -2168,6 +2175,9 @@ struct vector_info draw_eval_expr(ivl_expr_t exp, int stuff_ok_flag)
/* /*
* $Log: eval_expr.c,v $ * $Log: eval_expr.c,v $
* Revision 1.128 2005/12/22 15:42:22 steve
* Pad part selects
*
* Revision 1.127 2005/10/11 18:54:10 steve * Revision 1.127 2005/10/11 18:54:10 steve
* Remove the $ from signal labels. They do not help. * Remove the $ from signal labels. They do not help.
* *