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Document md_atof

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Nick Clifton 2001-06-22 09:32:09 +00:00
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gas/ChangeLog
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@ -1,3 +1,7 @@
2001-06-22 Nick Clifton <nickc@cambridge.redhat.com>
* doc/internals.texi (CPU backend): Document md_atof.
2001-06-22 Matthew Wilcox <willy@ldl.fc.hp.com>
* config/tc-hppa.c: Add %mrp (millicode return pointer) alias

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gas/doc/internals.texi
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@ -1130,6 +1130,22 @@ the MIPS which support options to change the endianness, which function to call
is a runtime decision. On other targets, @code{md_number_to_chars} can be a
simple macro.
@item md_atof (@var{type},@var{litP},@var{sizeP})
@cindex md_atof
This function is called to convert an ASCII string into a floating point value
in format used by the CPU. It takes three arguments. The first is @var{type}
which is a byte describing the type of floating point number to be created.
Possible values are @var{'f'} or @var{'s'} for single precision, @var{'d'} or
@var{'r'} for double precision and @var{'x'} or @var{'p'} for extended
precision. Either lower or upper case versions of these letters can be used.
The second parameter is @var{litP} which is a pointer to a byte array where the
converted value should be stored. The third argument is @var{sizeP}, which is
a pointer to a integer that should be filled in with the number of
@var{LITTLENUM}s emitted into the byte array. (@var{LITTLENUM} is defined in
gas/bignum.h). The function should return NULL upon success or an error string
upon failure.
@item md_reloc_size
@cindex md_reloc_size
This variable is only used in the original version of gas (not