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fmt,cxxrtl: add option to print numeric base (0x, etc).

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The option is serialized to RTLIL as `#` (to match Python's and Rust's
option with the same symbol), and sets the `show_base` flag. Because
the flag is called `show_base` and not e.g. `alternate_format` (which
is what Python and Rust call it), in addition to the prefixes `0x`,
`0X`, `0o`, `0b`, the RTLIL option also prints the `0d` prefix.
This commit is contained in:
Catherine 2024-03-28 08:33:29 +00:00 • committed by Marcelina Kościelnicka
parent bf5a960668
commit 7b94599162
3 changed files with 21 additions and 0 deletions
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7
backends/cxxrtl/runtime/cxxrtl/cxxrtl.h
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@ -1041,6 +1041,7 @@ struct fmt_part {
SPACE_MINUS = 2,
} sign; // = MINUS;
bool hex_upper; // = false;
bool show_base; // = false;
// VLOG_TIME type
bool realtime; // = false;
@ -1103,6 +1104,8 @@ struct fmt_part {
}
if (base == 2) {
if (show_base)
buf += "0b";
for (size_t i = width; i > 0; i--)
buf += (val.bit(i - 1) ? '1' : '0');
} else if (base == 8 || base == 16) {
@ -1113,6 +1116,8 @@ struct fmt_part {
value |= val.bit(index + 3) << 3;
buf += (hex_upper ? "0123456789ABCDEF" : "0123456789abcdef")[value];
}
if (show_base)
buf += (base == 16) ? (hex_upper ? "X0" : "x0") : "o0";
std::reverse(buf.begin(), buf.end());
} else if (base == 10) {
bool negative = signed_ && val.is_neg();
@ -1130,6 +1135,8 @@ struct fmt_part {
buf += '0' + remainder.template trunc<4>().template get<uint8_t>();
xval = quotient;
}
if (show_base)
buf += "d0";
switch (sign) {
case MINUS: buf += negative ? "-" : ""; break;
case PLUS_MINUS: buf += negative ? "-" : "+"; break;