I am currently familiarizing myself with the possibilities of Turbo Assembler 2.0; I was happy to find out that float constants can be specified as follows.
SomeVariable dd 72.0; corresponds to 042900000h
I was assuming that it is possible to evaluate expressions at assembly-time, like
SomeVariable dd 1.0 / 4.0; does not assemble
however this seems to be impossible. Is there indeed no possiblity to generate constants even from relatively simple expressions at assemble-time?
For FP math, I'm not surprised some (most?) assemblers choose not to do assemble-time eval. That would raise questions like what rounding mode, and what intermediate precision if the expression is more than one operator?
Most assemblers do integer constant-expressions just fine, including with equ and equivalent foo = 123 named constants.