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Added "write_verilog -nodec -nostr"

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This commit is contained in:
Clifford Wolf 2016-07-30 12:38:40 +02:00
parent 8537c4d206
commit 7fa61cba1b
1 changed files with 27 additions and 4 deletions
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31
backends/verilog/verilog_backend.cc
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@ -33,7 +33,7 @@
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
bool norename, noattr, attr2comment, noexpr;
bool norename, noattr, attr2comment, noexpr, nodec, nostr;
int auto_name_counter, auto_name_offset, auto_name_digits;
std::map<RTLIL::IdString, int> auto_name_map;
std::set<RTLIL::IdString> reg_wires, reg_ct;
@ -153,8 +153,10 @@ void dump_const(std::ostream &f, const RTLIL::Const &data, int width = -1, int o
{
if (width < 0)
width = data.bits.size() - offset;
if (nostr)
goto dump_bits;
if ((data.flags & RTLIL::CONST_FLAG_STRING) == 0 || width != (int)data.bits.size()) {
if (width == 32 && !no_decimal) {
if (width == 32 && !no_decimal && !nodec) {
int32_t val = 0;
for (int i = offset+width-1; i >= offset; i--) {
log_assert(i < (int)data.bits.size());
@ -164,9 +166,9 @@ void dump_const(std::ostream &f, const RTLIL::Const &data, int width = -1, int o
val |= 1 << (i - offset);
}
if (set_signed && val < 0)
f << stringf("-32'sd %u", -val);
f << stringf("-32'sd%u", -val);
else
f << stringf("32'%sd %u", set_signed ? "s" : "", val);
f << stringf("32'%sd%u", set_signed ? "s" : "", val);
} else {
dump_bits:
f << stringf("%d'%sb", width, set_signed ? "s" : "");
@ -1345,6 +1347,17 @@ struct VerilogBackend : public Backend {
log(" without this option all internal cells are converted to Verilog\n");
log(" expressions.\n");
log("\n");
log(" -nodec\n");
log(" 32-bit constant values are by default dumped as decimal numbers,\n");
log(" not bit pattern. This option decativates this feature and instead\n");
log(" will write out all constants in binary.\n");
log("\n");
log(" -nostr\n");
log(" Parameters and attributes that are specified as strings in the\n");
log(" original input will be output as strings by this back-end. This\n");
log(" decativates this feature and instead will write string constants\n");
log(" as binary numbers.\n");
log("\n");
log(" -blackboxes\n");
log(" usually modules with the 'blackbox' attribute are ignored. with\n");
log(" this option set only the modules with the 'blackbox' attribute\n");
@ -1369,6 +1382,8 @@ struct VerilogBackend : public Backend {
noattr = false;
attr2comment = false;
noexpr = false;
nodec = false;
nostr = false;
bool blackboxes = false;
bool selected = false;
@ -1418,6 +1433,14 @@ struct VerilogBackend : public Backend {
noexpr = true;
continue;
}
if (arg == "-nodec") {
nodec = true;
continue;
}
if (arg == "-nostr") {
nostr = true;
continue;
}
if (arg == "-blackboxes") {
blackboxes = true;
continue;