luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Add support for timeunit <time_val> / <time_val>

This commit is contained in:
Cary R 2013-04-16 14:39:54 -07:00
parent 283ae6e538
commit f536a43e92
1 changed files with 32 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
parse.y
View File

@ -1847,6 +1847,10 @@ tf_port_list /* IEEE1800-2005: A.2.7 */
timeunits_declaration /* IEEE1800-2005: A.1.2 */
: K_timeunit TIME_LITERAL ';'
{ pform_set_timeunit($2, false, false); }
| K_timeunit TIME_LITERAL '/' TIME_LITERAL ';'
{ pform_set_timeunit($2, false, false);
pform_set_timeprecision($4, false, false);
}
| K_timeprecision TIME_LITERAL ';'
{ pform_set_timeprecision($2, false, false); }
;
@ -3895,14 +3899,20 @@ cont_assign_list
/* We allow zero, one or two unique declarations. */
local_timeunit_prec_decl_opt
: /* Empty */
| local_timeunit_prec_decl
| local_timeunit_prec_decl local_timeunit_prec_decl
| K_timeunit TIME_LITERAL '/' TIME_LITERAL ';'
{ pform_set_timeunit($2, true, false);
have_timeunit_decl = true;
pform_set_timeprecision($4, true, false);
have_timeprec_decl = true;
}
| local_timeunit_prec_decl
| local_timeunit_prec_decl local_timeunit_prec_decl2
;
/* By setting the appropriate have_time???_decl we allow only
one declaration of each type in this module. */
local_timeunit_prec_decl
: K_timeunit TIME_LITERAL ';'
: K_timeunit TIME_LITERAL ';'
{ pform_set_timeunit($2, true, false);
have_timeunit_decl = true;
}
@ -3911,6 +3921,21 @@ local_timeunit_prec_decl
have_timeprec_decl = true;
}
;
local_timeunit_prec_decl2
: K_timeunit TIME_LITERAL ';'
{ pform_set_timeunit($2, true, false);
have_timeunit_decl = true;
}
| K_timeprecision TIME_LITERAL ';'
{ pform_set_timeprecision($2, true, false);
have_timeprec_decl = true;
}
/* As the second item this form is always a check. */
| K_timeunit TIME_LITERAL '/' TIME_LITERAL ';'
{ pform_set_timeunit($2, true, true);
pform_set_timeprecision($4, true, true);
}
;
/* This is the global structure of a module. A module in a start
section, with optional ports, then an optional list of module
@ -4414,6 +4439,10 @@ module_item
| K_timeunit_check TIME_LITERAL ';'
{ pform_set_timeunit($2, true, true); }
| K_timeunit_check TIME_LITERAL '/' TIME_LITERAL ';'
{ pform_set_timeunit($2, true, true);
pform_set_timeprecision($4, true, true);
}
| K_timeprecision_check TIME_LITERAL ';'
{ pform_set_timeprecision($2, true, true); }
;