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Handle real constants in vector expressions.

This commit is contained in:
steve 2007-01-19 05:24:53 +00:00
parent e4d7eda02a
commit f07257067a
1 changed files with 33 additions and 2 deletions
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35
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 1.132 2007/01/17 04:39:18 steve Exp $"
#ident "$Id: eval_expr.c,v 1.133 2007/01/19 05:24:53 steve Exp $"
#endif
# include "vvp_priv.h"
@ -1464,11 +1464,39 @@ static struct vector_info draw_realnum_expr(ivl_expr_t exp, unsigned wid)
{
struct vector_info res;
double val = ivl_expr_dvalue(exp);
long ival = val;
unsigned addr, run, idx;
int bit;
fprintf(vvp_out, "; draw_realnum_expr(%f, %u) as %ld\n",
val, wid, ival);
res.base = allocate_vector(wid);
res.wid = wid;
fprintf(vvp_out, " ; XXXX draw_realnum_expr(%f, %u)\n", val, wid);
addr = res.base;
run = 1;
bit = ival & 1;
ival >>= 1LL;
for (idx = 1 ; idx < wid ; idx += 1) {
int next_bit = ival & 1;
ival >>= 1LL;
if (next_bit == bit) {
run += 1;
continue;
}
fprintf(vvp_out, " %%mov %u, %d, %u;\n", addr, bit, run);
addr += run;
run = 1;
bit = next_bit;
}
fprintf(vvp_out, " %%mov %u, %d, %u;\n", addr, bit, run);
return res;
}
@ -2161,6 +2189,9 @@ struct vector_info draw_eval_expr(ivl_expr_t exp, int stuff_ok_flag)
/*
* $Log: eval_expr.c,v $
* Revision 1.133 2007/01/19 05:24:53 steve
* Handle real constants in vector expressions.
*
* Revision 1.132 2007/01/17 04:39:18 steve
* Remove dead code related to memories.
*