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A slightly smarter $display

This commit is contained in:
Nick Gasson 2008-06-23 13:45:24 +01:00
parent f81129aa68
commit 44958409f5
1 changed files with 22 additions and 5 deletions
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27
tgt-vhdl/display.cc
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@ -92,6 +92,14 @@ static char parse_octal(const char *p)
+ (*(p+2) - '0') * 1;
}
static void flush_string(std::ostringstream &ss, stmt_container *container)
{
display_write(container, new vhdl_const_string(ss.str().c_str()));
// Clear the stream
ss.str("");
}
/*
* Generate VHDL for the $display system task.
* This is implemented using the functions in std.textio. Each
@ -132,17 +140,26 @@ int draw_stask_display(vhdl_process *proc, stmt_container *container,
// Octal escape
char ch = parse_octal(p+1);
if (ch == '\n') {
display_write(container,
new vhdl_const_string(ss.str().c_str()));
flush_string(ss, container);
display_line(container);
// Clear the stream
ss.str("");
}
else
ss << ch;
p += 3;
}
else if (*p == '%') {
flush_string(ss, container);
p++; // Ignore the format (!)
ivl_expr_t net = ivl_stmt_parm(stmt, i++);
assert(net);
vhdl_expr *base = translate_expr(net);
if (NULL == base)
return 1;
display_write(container, base);
}
else
ss << *p;
}