diff options
Diffstat (limited to 'doc/nasmdoc.src')
| -rw-r--r-- | doc/nasmdoc.src | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/doc/nasmdoc.src b/doc/nasmdoc.src index f6616eb..66eaf10 100644 --- a/doc/nasmdoc.src +++ b/doc/nasmdoc.src @@ -3786,7 +3786,7 @@ Options are: \b\c{CPU WILLAMETTE} Same as P4 -\b\c{CPU PRESCOTT} Prescott instruction set +\b\c{CPU PRESCOTT} Prescott instruction set \b\c{CPU X64} x86-64 (x64/AMD64/EM64T) instruction set @@ -3797,6 +3797,34 @@ only if they apply to the selected CPU or lower. By default, all instructions are available. +\H{FLOAT} \i\c{FLOAT}: Handling of \I{floating-point, constants}floating-point constants + +By default, floating-point constants are rounded to nearest, and IEEE +denormals are supported. The following options can be set to alter +this behaviour: + +\b\c{FLOAT DAZ} Flush denormals to zero + +\b\c{FLOAT NODAZ} Do not flush denormals to zero (default) + +\b\c{FLOAT NEAR} Round to nearest (default) + +\b\c{FLOAT UP} Round up (toward +Infinity) + +\b\c{FLOAT DOWN} Round down (toward -Infinity) + +\b\c{FLOAT ZERO} Round toward zero + +\b\c{FLOAT DEFAULT} Restore default settings + +The standard macros \i\c{__FLOAT_DAZ__}, \i\c{__FLOAT_ROUND__}, and +\i\c{__FLOAT__} contain the current state, as long as the programmer +has avoided the use of the brackeded primitive form, (\c{[FLOAT]}). + +\c{__FLOAT__} contains the full set of floating-point settings; this +value can be saved away and invoked later to restore the setting. + + \C{outfmt} \i{Output Formats} NASM is a portable assembler, designed to be able to compile on any |