[18] | 1 | /* |
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| 2 | |
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| 3 | Copyright (c) 1992, 1993 |
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| 4 | Regents of the University of California |
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| 5 | All rights reserved. |
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| 6 | |
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| 7 | Use and copying of this software and preparation of derivative works |
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| 8 | based upon this software are permitted. However, any distribution of |
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| 9 | this software or derivative works must include the above copyright |
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| 10 | notice. |
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| 11 | |
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| 12 | This software is made available AS IS, and neither the Electronics |
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| 13 | Research Laboratory or the Universify of California make any |
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| 14 | warranty about the software, its performance or its conformity to |
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| 15 | any specification. |
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| 16 | |
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| 17 | Author: Szu-Tsung Cheng, stcheng@ic.Berkeley.EDU |
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| 18 | 10/92 |
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| 19 | 10/93 |
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| 20 | |
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| 21 | $Header: /projects/development/hsv/CVSRepository/vl2mv/src/parser/vl_latch.c,v 1.2 2009/03/09 20:25:58 fabio Exp $ |
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| 22 | |
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| 23 | |
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| 24 | */ |
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| 25 | |
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| 26 | #include <stdio.h> |
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| 27 | #include <math.h> |
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| 28 | #include "util.h" |
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| 29 | #include "st.h" |
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| 30 | #include "array.h" |
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| 31 | #include "list.h" |
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| 32 | #include "set.h" |
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| 33 | #include "vl_types.h" |
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| 34 | #include "vl_defs.h" |
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| 35 | #include "vlr_int.h" |
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| 36 | #include "vl_fg_defs.h" |
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| 37 | #include "vl_create.h" |
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| 38 | #include "vl_write.h" |
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| 39 | #include "vl_write_util.h" |
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| 40 | #include "vl_vardecl.h" |
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| 41 | #include "vl_mux.h" |
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| 42 | #include "verilog.h" |
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| 43 | |
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| 44 | extern int dumpSyncCkt; |
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| 45 | extern int set_notation; |
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| 46 | extern int smartEvent; |
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| 47 | extern int implicitClocking; |
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| 48 | extern vl_desc *mod_list; |
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| 49 | |
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| 50 | extern char *sync_assign(); |
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| 51 | |
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| 52 | static void check_comb_reduction ARGS((vl_id_range *id_sym)); |
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| 53 | |
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| 54 | |
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| 55 | void instantiate_mvar_latch(FILE *file, |
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| 56 | int non_block_var, |
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| 57 | int mark_sel_var, int lo, int hi, |
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| 58 | vl_id_range *id_sym, |
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| 59 | vl_id_range *orig_id_sym, |
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| 60 | var_info *lhsvar, |
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| 61 | char *lname) |
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| 62 | { |
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| 63 | int idx, idx_lo, idx_hi; |
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| 64 | lsList domain; |
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| 65 | lsGen enum_gen; |
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| 66 | lsHandle enum_handle; |
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| 67 | vl_enumerator *enum_elt; |
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| 68 | vl_id_range *temp_id_sym; |
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| 69 | vl_term *feed_back_array; |
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| 70 | int old_id_type; |
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| 71 | st_table *sensitiveList; |
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| 72 | int dummy; |
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| 73 | |
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| 74 | old_id_type = orig_id_sym->flags; |
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| 75 | domain = id_sym->id_type->specifier->u.enum_type->domain_list; |
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| 76 | if (vl_currentModule->combVar_st) { |
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| 77 | if (st_lookup(vl_currentModule->combVar_st, orig_id_sym->name, |
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| 78 | (char**)&temp_id_sym) && |
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| 79 | !st_lookup(vl_currentModule->seqVar_st, orig_id_sym->name, |
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| 80 | (char**)&temp_id_sym)) { |
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| 81 | |
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| 82 | orig_id_sym->flags &= ~RegVar; |
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| 83 | } else { |
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| 84 | check_comb_reduction(orig_id_sym); |
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| 85 | } |
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| 86 | } |
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| 87 | |
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| 88 | |
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| 89 | |
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| 90 | sensitiveList = NIL(st_table); |
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| 91 | if(!id_sym->range) { |
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| 92 | if (sensitiveList && (orig_id_sym->flags & RegVar)) { |
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| 93 | |
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| 94 | vl_term *feed_back; |
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| 95 | char buf[MAXSTRLEN]; |
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| 96 | |
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| 97 | sprintf(buf, "%s%s", id_sym->name, PIN_FEEDBACK); |
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| 98 | feed_back = create_rename_term(id_sym, buf, 0, -1); |
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| 99 | feed_back->term_type = id_sym->id_type; |
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| 100 | instantiate_mux(file, |
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| 101 | lhsvar->current_terminal, feed_back, |
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| 102 | sensitive_control(file, sensitiveList), |
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| 103 | create_rename_term(feed_back->name, lname, 0, -1)); |
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| 104 | fprintf(file, "%s %s %s\n", |
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| 105 | ".latch", |
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| 106 | non_block_var? |
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| 107 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 108 | strip_char(lname,SEP_LATCH), |
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| 109 | feed_back->name->name); |
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| 110 | vl_free_term(feed_back); |
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| 111 | } else { |
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| 112 | |
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| 113 | |
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| 114 | |
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| 115 | if (!implicitClocking && orig_id_sym->edge_trigger) { |
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| 116 | vl_term *feed_back, *new_terminal; |
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| 117 | feed_back = vl_create_term(orig_id_sym, 0, -1); |
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| 118 | new_terminal = typed_new_term(orig_id_sym->id_type, |
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| 119 | orig_id_sym->range, 0, -1); |
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| 120 | feed_back->flag |= lhsvar->current_terminal->flag; |
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| 121 | new_terminal->flag |= lhsvar->current_terminal->flag; |
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| 122 | write_mvar_decl(file, new_terminal); |
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| 123 | instantiate_mux(file, lhsvar->current_terminal, feed_back, |
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| 124 | orig_id_sym->edge_trigger, new_terminal); |
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| 125 | lhsvar->current_terminal = new_terminal; |
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| 126 | } |
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| 127 | |
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| 128 | fprintf(file, "%s %s %s", |
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| 129 | (orig_id_sym->flags&RegVar)? |
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| 130 | ".latch":".names", |
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| 131 | lhsvar->current_terminal->name->name, |
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| 132 | non_block_var? |
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| 133 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 134 | strip_char(lname,SEP_LATCH)); |
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| 135 | if (st_lookup(vl_currentModule->quasi_st,lname,(char**)&dummy)) |
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| 136 | fprintf(file, "%s%s", SEP_GATEPIN, PIN_PS); |
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| 137 | fprintf(file, "\n"); |
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| 138 | |
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| 139 | if (!(orig_id_sym->flags&RegVar)) { |
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| 140 | if (set_notation) { |
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| 141 | fprintf(file, "- %s%s\n", |
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| 142 | HSIS_EQUAL, |
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| 143 | lhsvar->current_terminal->name->name); |
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| 144 | } else { |
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| 145 | for (enum_gen=lsStart(domain); |
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| 146 | lsNext(enum_gen, |
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| 147 | (lsGeneric*)&enum_elt,&enum_handle)!= |
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| 148 | LS_NOMORE;) { |
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| 149 | fprintf(file, "%s %s\n", |
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| 150 | enum_elt->name,enum_elt->name); |
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| 151 | } |
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| 152 | lsFinish(enum_gen); |
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| 153 | } |
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| 154 | } else if (non_block_var && mark_sel_var) { |
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| 155 | fprintf(file, ".names %s \n", lname); |
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| 156 | fprintf(file, "%s\n", strip_char(lname,SEP_SEL_VAR)); |
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| 157 | for (enum_gen=lsStart(domain); |
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| 158 | lsNext(enum_gen, |
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| 159 | (lsGeneric*)&enum_elt,&enum_handle)!= |
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| 160 | LS_NOMORE;) { |
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| 161 | fprintf(file, "%s %s\n", |
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| 162 | enum_elt->name, enum_elt->name); |
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| 163 | } |
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| 164 | lsFinish(enum_gen); |
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| 165 | } |
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| 166 | } |
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| 167 | } else { |
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| 168 | char buf[MAXSTRLEN]; |
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| 169 | |
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| 170 | idx_lo = vl_eval_expr(id_sym->range->left); |
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| 171 | if (id_sym->range->right) |
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| 172 | idx_hi = vl_eval_expr(id_sym->range->right); |
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| 173 | else |
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| 174 | idx_hi = idx_lo; |
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| 175 | |
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| 176 | sprintf(buf, "%s%s", id_sym->name, PIN_FEEDBACK); |
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| 177 | feed_back_array = create_rename_term(id_sym, buf, 0, -1); |
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| 178 | for (idx=idx_lo; idx<=idx_hi; idx++) { |
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| 179 | if (sensitiveList && (orig_id_sym->flags & RegVar)) { |
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| 180 | |
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| 181 | vl_term *feed_back; |
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| 182 | |
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| 183 | sprintf(buf, "%s%s%d%s", |
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| 184 | feed_back_array->name->name, |
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| 185 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 186 | feed_back = create_rename_term(feed_back_array->name, |
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| 187 | buf, 0, -1); |
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| 188 | sprintf(buf, "%s%s%d%s", lname, SEP_LARRAY, idx, SEP_RARRAY); |
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| 189 | instantiate_mux(file, |
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| 190 | lhsvar->current_terminal, feed_back, |
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| 191 | sensitive_control(file, sensitiveList), |
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| 192 | create_rename_term(feed_back_array->name, buf, |
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| 193 | 0, -1)); |
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| 194 | fprintf(file, "%s %s%s%d%s %s\n", |
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| 195 | ".latch", |
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| 196 | non_block_var? |
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| 197 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 198 | strip_char(lname,SEP_LATCH), |
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| 199 | SEP_LARRAY, idx, SEP_RARRAY, |
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| 200 | feed_back->name->name); |
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| 201 | vl_free_term(feed_back); |
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| 202 | } else { |
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| 203 | |
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| 204 | |
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| 205 | |
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| 206 | if (!implicitClocking && orig_id_sym->edge_trigger) { |
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| 207 | vl_term *feed_back, *new_terminal; |
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| 208 | feed_back = vl_create_term(orig_id_sym, 0, -1); |
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| 209 | new_terminal = typed_new_term(orig_id_sym->id_type, |
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| 210 | orig_id_sym->range, 0, -1); |
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| 211 | instantiate_mux(file, lhsvar->current_terminal, feed_back, |
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| 212 | orig_id_sym->edge_trigger, new_terminal); |
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| 213 | lhsvar->current_terminal = new_terminal; |
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| 214 | } |
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| 215 | |
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| 216 | fprintf(file, "%s %s%s%d%s %s%s%d%s", |
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| 217 | (orig_id_sym->flags&RegVar)? |
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| 218 | ".latch":".names", |
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| 219 | lhsvar->current_terminal->name->name, |
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| 220 | SEP_LARRAY, idx, SEP_RARRAY, |
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| 221 | non_block_var? |
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| 222 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 223 | strip_char(lname,SEP_LATCH), |
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| 224 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 225 | if (st_lookup(vl_currentModule->quasi_st, |
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| 226 | lname,(char**)&dummy)) |
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| 227 | fprintf(file, "%s%s", SEP_GATEPIN, PIN_PS); |
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| 228 | fprintf(file, "\n"); |
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| 229 | if (!(orig_id_sym->flags&RegVar)) { |
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| 230 | if (set_notation) { |
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| 231 | fprintf(file, "- %s%s%s%d%s\n", |
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| 232 | HSIS_EQUAL, |
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| 233 | lhsvar->current_terminal->name->name, |
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| 234 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 235 | } else { |
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| 236 | for (enum_gen=lsStart(domain); |
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| 237 | lsNext(enum_gen,(lsGeneric*)&enum_elt,&enum_handle)!= |
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| 238 | LS_NOMORE;) { |
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| 239 | fprintf(file, "%s %s\n", |
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| 240 | enum_elt->name, enum_elt->name); |
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| 241 | } |
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| 242 | lsFinish(enum_gen); |
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| 243 | } |
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| 244 | } else if (non_block_var && mark_sel_var) { |
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| 245 | fprintf(file, ".names %s%s%d%s ", |
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| 246 | lname, |
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| 247 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 248 | fprintf(file, "%s%s%d%s\n", |
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| 249 | strip_char(lname,SEP_SEL_VAR), |
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| 250 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 251 | for (enum_gen=lsStart(domain); |
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| 252 | lsNext(enum_gen,(lsGeneric*)&enum_elt,&enum_handle)!= |
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| 253 | LS_NOMORE;) { |
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| 254 | fprintf(file, "%s %s\n", |
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| 255 | enum_elt->name, enum_elt->name); |
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| 256 | } |
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| 257 | lsFinish(enum_gen); |
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| 258 | } |
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| 259 | } |
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| 260 | } |
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| 261 | } |
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| 262 | |
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| 263 | orig_id_sym->flags = old_id_type; |
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| 264 | |
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| 265 | |
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| 266 | lo = lo; |
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| 267 | hi = hi; |
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| 268 | } |
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| 269 | |
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| 270 | |
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| 271 | void instantiate_bin_scalar_latch(FILE *file, int non_block_var, |
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| 272 | int mark_sel_var, |
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| 273 | vl_id_range *id_sym, |
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| 274 | vl_id_range *orig_id_sym, |
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| 275 | var_info *lhsvar, char *lname) |
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| 276 | { |
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| 277 | int i; |
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| 278 | int modify_id_flag = 0; |
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| 279 | int idx, idx_lo, idx_hi; |
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| 280 | vl_id_range *temp_id_sym; |
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| 281 | int old_id_type=0; |
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| 282 | vl_term *feed_back_array; |
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| 283 | st_table *sensitiveList; |
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| 284 | int dummy; |
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| 285 | |
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| 286 | if (vl_currentModule->combVar_st) { |
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| 287 | if (st_lookup(vl_currentModule->combVar_st, orig_id_sym->name, |
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| 288 | (char**)&temp_id_sym) && |
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| 289 | !st_lookup(vl_currentModule->seqVar_st, orig_id_sym->name, |
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| 290 | (char**)&temp_id_sym)) { |
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| 291 | modify_id_flag = 1; |
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| 292 | old_id_type = orig_id_sym->flags; |
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| 293 | orig_id_sym->flags &= ~RegVar; |
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| 294 | } else { |
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| 295 | check_comb_reduction(orig_id_sym); |
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| 296 | } |
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| 297 | } |
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| 298 | |
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| 299 | |
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| 300 | |
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| 301 | sensitiveList = NIL(st_table); |
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| 302 | if (!id_sym->range) { |
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| 303 | if (sensitiveList && (orig_id_sym->flags & RegVar)) { |
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| 304 | |
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| 305 | vl_term *feed_back; |
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| 306 | char buf[MAXSTRLEN]; |
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| 307 | |
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| 308 | sprintf(buf, "%s", id_sym->name); |
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| 309 | feed_back = create_rename_term(id_sym, buf, 0, -1); |
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| 310 | instantiate_mux(file, |
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| 311 | lhsvar->current_terminal, feed_back, |
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| 312 | sensitive_control(file, sensitiveList), |
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| 313 | create_rename_term(feed_back->name, lname, 0, -1)); |
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| 314 | fprintf(file, "%s %s %s\n", |
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| 315 | ".latch", |
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| 316 | non_block_var? |
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| 317 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 318 | strip_char(lname,SEP_LATCH), |
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| 319 | feed_back->name->name); |
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| 320 | vl_free_term(feed_back); |
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| 321 | } else { |
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| 322 | |
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| 323 | |
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| 324 | |
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| 325 | if (!implicitClocking && orig_id_sym->edge_trigger) { |
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| 326 | vl_term *feed_back, *new_terminal; |
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| 327 | feed_back = vl_create_term(orig_id_sym, 0, -1); |
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| 328 | new_terminal = typed_new_term(orig_id_sym->id_type, |
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| 329 | orig_id_sym->range, 0, -1); |
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| 330 | instantiate_mux(file, lhsvar->current_terminal, feed_back, |
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| 331 | orig_id_sym->edge_trigger, new_terminal); |
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| 332 | lhsvar->current_terminal = new_terminal; |
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| 333 | } |
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| 334 | |
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| 335 | if (id_sym->flags & EventVar) { |
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| 336 | vl_write_bit_connect(file, |
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| 337 | lhsvar->current_terminal->name->name, |
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| 338 | lname, 0); |
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| 339 | if (!smartEvent) |
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| 340 | fprintf(file, ".latch %s %s%s%s\n", |
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| 341 | lname, lname, SEP_GATEPIN, PIN_EVENT); |
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| 342 | } else { |
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| 343 | fprintf(file, "%s %s %s", |
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| 344 | (orig_id_sym->flags&RegVar)? |
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| 345 | ".latch":".names", |
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| 346 | lhsvar->current_terminal->name->name, |
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| 347 | non_block_var? |
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| 348 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 349 | strip_char(lname,SEP_LATCH)); |
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| 350 | if (st_lookup(vl_currentModule->quasi_st, |
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| 351 | lname, (char**)&dummy)) |
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| 352 | fprintf(file, "%s%s", SEP_GATEPIN, PIN_PS); |
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| 353 | fprintf(file, "\n"); |
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| 354 | } |
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| 355 | |
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| 356 | if (!(orig_id_sym->flags&RegVar)) { |
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| 357 | fprintf(file, "1 1\n0 0\n"); |
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| 358 | } else if (non_block_var && mark_sel_var) { |
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| 359 | fprintf(file, ".names %s ", lname); |
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| 360 | fprintf(file, "%s\n", strip_char(lname,SEP_SEL_VAR)); |
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| 361 | for (i=0; i<=1; i++) { |
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| 362 | fprintf(file, "%d %d\n", i, i); |
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| 363 | } |
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| 364 | } |
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| 365 | } |
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| 366 | } else { |
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| 367 | char buf[MAXSTRLEN]; |
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| 368 | |
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| 369 | idx_lo = vl_eval_expr(id_sym->range->left); |
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| 370 | if (id_sym->range->right) |
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| 371 | idx_hi = vl_eval_expr(id_sym->range->right); |
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| 372 | else |
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| 373 | idx_hi = idx_lo; |
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| 374 | |
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| 375 | sprintf(buf, "%s%s", id_sym->name, PIN_FEEDBACK); |
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| 376 | feed_back_array = create_rename_term(id_sym, buf, 0, -1); |
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| 377 | for (idx=idx_lo; idx<=idx_hi; idx++) { |
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| 378 | if (sensitiveList && (orig_id_sym->flags & RegVar)) { |
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| 379 | |
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| 380 | vl_term *feed_back; |
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| 381 | |
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| 382 | sprintf(buf, "%s%s%s%d%s", |
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| 383 | feed_back_array->name->name, PIN_FEEDBACK, |
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| 384 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 385 | feed_back = create_rename_term(feed_back_array->name, |
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| 386 | buf, 0, -1); |
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| 387 | sprintf(buf, "%s%s%d%s", lname, SEP_LARRAY, idx, SEP_RARRAY); |
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| 388 | instantiate_mux(file, |
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| 389 | lhsvar->current_terminal, feed_back, |
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| 390 | sensitive_control(file, sensitiveList), |
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| 391 | create_rename_term(feed_back_array->name, buf, |
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| 392 | 0, -1)); |
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| 393 | fprintf(file, "%s %s%s%d%s %s\n", |
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| 394 | ".latch", |
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| 395 | non_block_var? |
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| 396 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 397 | strip_char(lname,SEP_LATCH), |
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| 398 | SEP_LARRAY, idx, SEP_RARRAY, |
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| 399 | feed_back->name->name); |
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| 400 | vl_free_term(feed_back); |
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| 401 | } else { |
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| 402 | |
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| 403 | |
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| 404 | |
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| 405 | if (!implicitClocking && orig_id_sym->edge_trigger) { |
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| 406 | vl_term *feed_back, *new_terminal; |
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| 407 | feed_back = vl_create_term(orig_id_sym, 0, -1); |
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| 408 | new_terminal = typed_new_term(orig_id_sym->id_type, |
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| 409 | orig_id_sym->range, 0, -1); |
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| 410 | instantiate_mux(file, lhsvar->current_terminal, feed_back, |
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| 411 | orig_id_sym->edge_trigger, new_terminal); |
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| 412 | lhsvar->current_terminal = new_terminal; |
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| 413 | } |
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| 414 | |
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| 415 | fprintf(file, "%s %s%s%d%s %s%s%d%s", |
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| 416 | (orig_id_sym->flags&RegVar)? |
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| 417 | ".latch":".names", |
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| 418 | lhsvar->current_terminal->name->name, |
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| 419 | SEP_LARRAY, idx, SEP_RARRAY, |
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| 420 | non_block_var? |
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| 421 | sel_var(strip_char(lname,SEP_LATCH)): |
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| 422 | strip_char(lname,SEP_LATCH), |
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| 423 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 424 | if (st_lookup(vl_currentModule->quasi_st, |
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| 425 | lname,(char**)&dummy)) |
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| 426 | fprintf(file, "%s%s", SEP_GATEPIN, PIN_PS); |
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| 427 | fprintf(file, "\n"); |
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| 428 | if (!(orig_id_sym->flags&RegVar)) { |
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| 429 | fprintf(file, "1 1\n0 0\n"); |
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| 430 | } else if (non_block_var && mark_sel_var) { |
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| 431 | fprintf(file, ".names %s%s%d%s ", |
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| 432 | lname, |
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| 433 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 434 | fprintf(file, "%s%s%d%s\n", |
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| 435 | strip_char(lname,SEP_SEL_VAR), |
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| 436 | SEP_LARRAY, idx, SEP_RARRAY); |
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| 437 | for (i=0; i<=1; i++) { |
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| 438 | fprintf(file, "%d %d\n", i, i); |
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| 439 | } |
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| 440 | } |
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| 441 | } |
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| 442 | } |
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| 443 | } |
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| 444 | |
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| 445 | if (modify_id_flag) |
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| 446 | orig_id_sym->flags = old_id_type; |
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| 447 | } |
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| 448 | |
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| 449 | |
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| 450 | void instantiate_bin_vector_latch(FILE *file, |
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| 451 | int non_block_var, |
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| 452 | int mark_sel_var, |
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| 453 | int lo, int hi, |
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| 454 | vl_id_range *id_sym, |
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| 455 | vl_id_range *orig_id_sym, |
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| 456 | var_info *lhsvar, |
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| 457 | char *lname) |
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| 458 | { |
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| 459 | int i; |
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| 460 | int idx, idx_lo, idx_hi; |
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| 461 | int old_id_type=0; |
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| 462 | vl_id_range *temp_id_sym; |
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| 463 | vl_term *feed_back_array; |
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| 464 | st_table *sensitiveList; |
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| 465 | int need_recover_id_sym=0; |
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| 466 | int dummy; |
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| 467 | extern int combinationalReduction; |
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| 468 | |
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| 469 | if (vl_currentModule->combVar_st) { |
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| 470 | if (st_lookup(vl_currentModule->combVar_st, orig_id_sym->name, |
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| 471 | (char**)&temp_id_sym) && |
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| 472 | !st_lookup(vl_currentModule->seqVar_st, orig_id_sym->name, |
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| 473 | (char**)&temp_id_sym)) { |
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| 474 | old_id_type = orig_id_sym->flags; |
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| 475 | need_recover_id_sym = 1; |
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| 476 | orig_id_sym->flags &= ~RegVar; |
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| 477 | } else { |
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| 478 | check_comb_reduction(orig_id_sym); |
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| 479 | } |
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| 480 | } |
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| 481 | |
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| 482 | if (id_sym->syndrome_expr_list) |
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| 483 | if (lsLength(id_sym->syndrome_expr_list) == 0) |
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| 484 | if (id_sym->rst_syndrome_expr_list) |
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| 485 | if (lsLength(id_sym->rst_syndrome_expr_list) == 0) |
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| 486 | if (combinationalReduction) |
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| 487 | return; |
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| 488 | |
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| 489 | sensitiveList = NIL(st_table); |
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| 490 | |
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| 491 | if (orig_id_sym->flags & RegVar) { |
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| 492 | if (!sensitiveList) { |
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| 493 | |
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| 494 | if (!implicitClocking && orig_id_sym->edge_trigger) { |
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| 495 | vl_term *feed_back, *new_terminal; |
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| 496 | feed_back = vl_create_term(orig_id_sym, lo, hi); |
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| 497 | new_terminal = typed_new_term(orig_id_sym->id_type, |
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| 498 | orig_id_sym->range, lo, hi); |
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| 499 | instantiate_mux(file, lhsvar->current_terminal, |
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| 500 | feed_back, |
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| 501 | orig_id_sym->edge_trigger, |
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| 502 | new_terminal); |
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| 503 | lhsvar->current_terminal = new_terminal; |
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| 504 | } |
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| 505 | } |
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| 506 | } |
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| 507 | for (i=lo; i<=hi; i++) { |
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| 508 | if (!id_sym->range) { |
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| 509 | if (sensitiveList && (orig_id_sym->flags & RegVar)) { |
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| 510 | |
---|
| 511 | vl_term *feed_back; |
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| 512 | char buf[MAXSTRLEN]; |
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| 513 | |
---|
| 514 | sprintf(buf, "%s%s", id_sym->name, PIN_FEEDBACK); |
---|
| 515 | feed_back = create_rename_term(id_sym, buf, lo, hi); |
---|
| 516 | instantiate_mux(file, |
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| 517 | lhsvar->current_terminal, feed_back, |
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| 518 | sensitive_control(file, sensitiveList), |
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| 519 | create_rename_term(feed_back->name,lname, |
---|
| 520 | 0,-1)); |
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| 521 | fprintf(file, "%s %s %s\n", |
---|
| 522 | ".latch", |
---|
| 523 | non_block_var? |
---|
| 524 | sel_var(strip_char(lname,SEP_LATCH)): |
---|
| 525 | strip_char(lname,SEP_LATCH), |
---|
| 526 | feed_back->name->name); |
---|
| 527 | vl_free_term(feed_back); |
---|
| 528 | } else { |
---|
| 529 | |
---|
| 530 | fprintf(file, "%s %s%s%d%s %s%s%d%s", |
---|
| 531 | (orig_id_sym->flags&RegVar)? |
---|
| 532 | ".latch":".names", |
---|
| 533 | lhsvar->current_terminal->name->name, |
---|
| 534 | SEP_LBITSELECT, i, SEP_RBITSELECT, |
---|
| 535 | non_block_var? |
---|
| 536 | sel_var(strip_char(lname,SEP_LATCH)): |
---|
| 537 | strip_char(lname,SEP_LATCH), |
---|
| 538 | SEP_LBITSELECT, i, SEP_RBITSELECT); |
---|
| 539 | if (st_lookup(vl_currentModule->quasi_st, |
---|
| 540 | lname,(char**)&dummy)) |
---|
| 541 | fprintf(file, "%s%s", SEP_GATEPIN, PIN_PS); |
---|
| 542 | fprintf(file, "\n"); |
---|
| 543 | if (!(orig_id_sym->flags&RegVar)) { |
---|
| 544 | fprintf(file, "1 1\n0 0\n"); |
---|
| 545 | } else if (non_block_var && mark_sel_var) { |
---|
| 546 | fprintf(file, ".names %s%s%d%s %s%s%d%s", |
---|
| 547 | lname, |
---|
| 548 | SEP_LBITSELECT, i, SEP_RBITSELECT, |
---|
| 549 | strip_char(lname, SEP_SEL_VAR), |
---|
| 550 | SEP_LBITSELECT, i, SEP_RBITSELECT); |
---|
| 551 | fprintf(file, "1 1\n0 0\n"); |
---|
| 552 | } |
---|
| 553 | } |
---|
| 554 | } else { |
---|
| 555 | char buf[MAXSTRLEN]; |
---|
| 556 | |
---|
| 557 | idx_lo = vl_eval_expr(id_sym->range->left); |
---|
| 558 | if (id_sym->range->right) |
---|
| 559 | idx_hi = vl_eval_expr(id_sym->range->right); |
---|
| 560 | else |
---|
| 561 | idx_hi = idx_lo; |
---|
| 562 | |
---|
| 563 | sprintf(buf, "%s%s", id_sym->name, PIN_FEEDBACK); |
---|
| 564 | feed_back_array = create_rename_term(id_sym, buf, lo, hi); |
---|
| 565 | for (idx=idx_lo; idx<=idx_hi; idx++) { |
---|
| 566 | if (sensitiveList && (orig_id_sym->flags & RegVar)) { |
---|
| 567 | |
---|
| 568 | vl_term *feed_back; |
---|
| 569 | char buf[MAXSTRLEN]; |
---|
| 570 | |
---|
| 571 | sprintf(buf, "%s%s%d%s", feed_back_array->name->name, |
---|
| 572 | SEP_LARRAY, idx, SEP_RARRAY); |
---|
| 573 | feed_back = create_rename_term(feed_back_array->name, |
---|
| 574 | buf, lo, hi); |
---|
| 575 | sprintf(buf, "%s%s%d%s", lname, |
---|
| 576 | SEP_LARRAY, idx, SEP_RARRAY); |
---|
| 577 | instantiate_mux(file, |
---|
| 578 | lhsvar->current_terminal, feed_back, |
---|
| 579 | sensitive_control(file, sensitiveList), |
---|
| 580 | create_rename_term(feed_back_array->name,buf, |
---|
| 581 | lo, hi)); |
---|
| 582 | fprintf(file, "%s %s%s%d%s %s\n", |
---|
| 583 | ".latch", |
---|
| 584 | non_block_var? |
---|
| 585 | sel_var(strip_char(lname,SEP_LATCH)): |
---|
| 586 | strip_char(lname,SEP_LATCH), |
---|
| 587 | SEP_LARRAY, idx, SEP_RARRAY, |
---|
| 588 | feed_back->name->name); |
---|
| 589 | vl_free_term(feed_back); |
---|
| 590 | } else { |
---|
| 591 | |
---|
| 592 | fprintf(file, |
---|
| 593 | "%s %s%s%d%s%s%d%s %s%s%d%s%s%d%s", |
---|
| 594 | (orig_id_sym->flags&RegVar)? |
---|
| 595 | ".latch":".names", |
---|
| 596 | lhsvar->current_terminal->name->name, |
---|
| 597 | SEP_LARRAY, idx, SEP_RARRAY, |
---|
| 598 | SEP_LBITSELECT, i, SEP_RBITSELECT, |
---|
| 599 | non_block_var? |
---|
| 600 | sel_var(strip_char(lname,SEP_LATCH)): |
---|
| 601 | strip_char(lname,SEP_LATCH), |
---|
| 602 | SEP_LARRAY, idx, SEP_RARRAY, |
---|
| 603 | SEP_LBITSELECT, i, SEP_RBITSELECT); |
---|
| 604 | if (st_lookup(vl_currentModule->quasi_st, |
---|
| 605 | lname,(char**)&dummy)) |
---|
| 606 | fprintf(file, "%s%s", SEP_GATEPIN, PIN_PS); |
---|
| 607 | fprintf(file, "\n"); |
---|
| 608 | if (!(orig_id_sym->flags&RegVar)) { |
---|
| 609 | fprintf(file, "1 1\n0 0\n"); |
---|
| 610 | } else if(non_block_var && mark_sel_var) { |
---|
| 611 | fprintf(file, |
---|
| 612 | ".names %s%s%d%s%s%d%s %s%s%d%s%s%d%s\n", |
---|
| 613 | lname, |
---|
| 614 | SEP_LARRAY, idx, SEP_RARRAY, |
---|
| 615 | SEP_LBITSELECT, i, SEP_RBITSELECT, |
---|
| 616 | strip_char(lname,SEP_SEL_VAR), |
---|
| 617 | SEP_LARRAY, idx, SEP_RARRAY, |
---|
| 618 | SEP_LBITSELECT, i, SEP_RBITSELECT); |
---|
| 619 | fprintf(file, "1 1\n0 0\n"); |
---|
| 620 | } |
---|
| 621 | } |
---|
| 622 | } |
---|
| 623 | } |
---|
| 624 | } |
---|
| 625 | |
---|
| 626 | if (need_recover_id_sym) |
---|
| 627 | orig_id_sym->flags = old_id_type; |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | |
---|
| 631 | static void check_comb_reduction(vl_id_range *id_sym) |
---|
| 632 | { |
---|
| 633 | char *dummy; |
---|
| 634 | char buf[MAXSTRLEN]; |
---|
| 635 | |
---|
| 636 | if (vl_currentModule->combVar_st) { |
---|
| 637 | if (st_lookup(vl_currentModule->combVar_st, id_sym->name, &dummy) && |
---|
| 638 | st_lookup(vl_currentModule->seqVar_st, id_sym->name, &dummy)) { |
---|
| 639 | sprintf(buf, "%s%s", id_sym->name, SEP_QUASI); |
---|
| 640 | if (!st_lookup(vl_currentModule->sig_st, buf, &dummy)) { |
---|
| 641 | sprintf(buf, |
---|
| 642 | "%s:'%s' is touched by both sequential/combinational ", |
---|
| 643 | vl_currentModule->name->name, |
---|
| 644 | id_sym->name); |
---|
| 645 | strcat(buf, "procedurarl blocks,\nhowever, combinational "); |
---|
| 646 | strcat(buf, "block is not assigning to that variable\n"); |
---|
| 647 | strcat(buf, "through quasi-assignment. Compilation abort"); |
---|
| 648 | yylineno = -1; |
---|
| 649 | compile_error(buf); |
---|
| 650 | } |
---|
| 651 | } |
---|
| 652 | } |
---|
| 653 | } |
---|
| 654 | |
---|
| 655 | |
---|
| 656 | char *sync_assign() |
---|
| 657 | { |
---|
| 658 | static char retval[MAXSTRLEN]; |
---|
| 659 | |
---|
| 660 | if (implicitClocking && vl_currentModule->clk && dumpSyncCkt) { |
---|
| 661 | if (vl_currentModule->clk->type == NegedgeEventExpr) |
---|
| 662 | sprintf(retval, "%s ( %s )", SMV_IF, |
---|
| 663 | vl_currentModule->clk->expr->u.name->name); |
---|
| 664 | else |
---|
| 665 | sprintf(retval, "%s ( %s%s )", SMV_IF, SMV_NOT, |
---|
| 666 | vl_currentModule->clk->expr->u.name->name); |
---|
| 667 | } else { |
---|
| 668 | sprintf(retval, "%s", SMV_ASSIGN); |
---|
| 669 | } |
---|
| 670 | return retval; |
---|
| 671 | } |
---|