z88dk forums

Hi all,

I've written a couple of libraries, and I essentially need two versions of
the library - depending on where they are being run.

Essentially, if the code is running in the Spectrum's main RAM, it must
cause a ROM to be paged to make the call to the right ROM. But if the code
is running from another page within the ROM, it shouldn't do the
page/unpage operation.

What I think will be most efficient is doing the equivalent of a C ifdef,
and generating two library binaries, and the program is linked to the
right version of the library, depending on whether it's to run from main
RAM or not. Essentially what I want to do in the ASM file is this:

#ifdef MAINRAM
ld hl, SOCKET
call HLCALL     ; use paging mechanism
#else
call SOCKET     ; the ROM is already paged in, do not use pager
#endif

and in the makefile, build two libraries, one with the equivalent of doing
-DMAINRAM as a command line argument to the C compiler, and the other
not. But I want to do it with the z88dk's assembler (since the entire
library is in asm) rather than with the C compiler.

Is this possible?

Cheers.

--
Dylan Smith, Port St Mary, Isle of Man    | Code fast, crash young and
Flying: http://www.alioth.net/flying      | leave a beautiful core.
FFE/Elite Universe: http://www.alioth.net |             -- JK (#afe)



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