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Backported sorry messages for variable RHS on procedural force/CA.

This commit is contained in:
Martin Whitaker 2015-04-25 13:16:24 +01:00
parent 2f4b460f6e
commit 7d12216b14
1 changed files with 20 additions and 3 deletions
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23
tgt-vvp/vvp_process.c
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2001-2014 Stephen Williams (steve@icarus.com) * Copyright (c) 2001-2015 Stephen Williams (steve@icarus.com)
* *
* This source code is free software; you can redistribute it * This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU * and/or modify it in source code form under the terms of the GNU
@ -1169,8 +1169,18 @@ static void force_link_rval(ivl_statement_t net, ivl_expr_t rval)
ivl_expr_t lword_idx, rword_idx; ivl_expr_t lword_idx, rword_idx;
unsigned long use_lword = 0, use_rword = 0; unsigned long use_lword = 0, use_rword = 0;
if (ivl_expr_type(rval) != IVL_EX_SIGNAL) if (ivl_expr_type(rval) != IVL_EX_SIGNAL) {
if (ivl_expr_type(rval) == IVL_EX_NUMBER ||
ivl_expr_type(rval) == IVL_EX_REALNUM)
return;
fprintf(stderr, "%s:%u: tgt-vvp sorry: procedural continuous "
"assignments are not yet fully supported. The RHS of "
"this assignment will only be evaluated once, at the "
"time the assignment statement is executed.\n",
ivl_stmt_file(net), ivl_stmt_lineno(net));
return; return;
}
switch (ivl_statement_type(net)) { switch (ivl_statement_type(net)) {
case IVL_ST_CASSIGN: case IVL_ST_CASSIGN:
@ -1253,7 +1263,14 @@ static void force_link_rval(ivl_statement_t net, ivl_expr_t rval)
if ((rword_idx = ivl_expr_oper1(rval)) != 0) { if ((rword_idx = ivl_expr_oper1(rval)) != 0) {
assert(ivl_signal_dimensions(rsig) != 0); assert(ivl_signal_dimensions(rsig) != 0);
assert(number_is_immediate(rword_idx, IMM_WID, 0)); if (!number_is_immediate(rword_idx, IMM_WID, 0)) {
fprintf(stderr, "%s:%u: tgt-vvp sorry: procedural continuous "
"assignments are not yet fully supported. The RHS of "
"this assignment will only be evaluated once, at the "
"time the assignment statement is executed.\n",
ivl_stmt_file(net), ivl_stmt_lineno(net));
return;
}
assert(! number_is_unknown(rword_idx)); assert(! number_is_unknown(rword_idx));
use_rword = get_number_immediate(rword_idx); use_rword = get_number_immediate(rword_idx);
/* We do not currently support using a word from a variable /* We do not currently support using a word from a variable