VMS Help
RTL Routines, LIB$, LIB$EMODH
*Conan The Librarian (sorry for the slow response - running on an old VAX)
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On OpenVMS VAX systems, the Extended Multiply and Integerize
routine (H-Floating-Point Values) allows higher-level language
users to perform accurate range reduction of H-floating
arguments.
This routine is not available to native OpenVMS Alpha programs
but is available to translated VAX images.
Format
LIB$EMODH floating-point-multiplier ,multiplier-extension
,floating-point-multiplicand ,integer-portion
,fractional-portion
OpenVMS usage:cond_value
type: longword (unsigned)
access: write only
mechanism: by value
floating-point-multiplier
OpenVMS usage:floating_point
type: H_floating
access: read only
mechanism: by reference
The multiplier. The floating-point-multiplier argument is an
H-floating number.
multiplier-extension
OpenVMS usage:word_unsigned
type: word (unsigned)
access: read only
mechanism: by reference
The left-justified multiplier-extension bits. The multiplier-
extension argument is an unsigned word.
floating-point-multiplicand
OpenVMS usage:floating_point
type: H_floating
access: read only
mechanism: by reference
The multiplicand. The floating-point-multiplicand argument is an
H-floating number.
integer-portion
OpenVMS usage:longword_signed
type: longword integer (signed)
access: write only
mechanism: by reference
The integer portion of the result. The integer-portion argument
is the address of a signed longword integer containing the
integer portion of the result.
fractional-portion
OpenVMS usage:floating_point
type: H_floating
access: write only
mechanism: by reference
The fractional portion of the result. The fractional-portion
argument is an H-floating number.
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