A new calling convention for z80¹ has been implemented in the breaktheworld branch: https://sourceforge.net/p/sdcc/code/HEAD/tree/branches/breaktheworld/
Anyone wanting to test it or experiment with it is welcome to use the branch. C code should continue to just work without any changes (most regression tests pass, but there are some remaining failures due to a few not-yet-ported library functions, mostly of the __itoa family). Though typically, it should be a bit faster and smaller (after all that is the goal of switching the calling convention). Assembler code will have to be adapted to the new convention (which is documented in the manual in the branch). Alternatively, using the keyword __sdccoldcall in function declarations, individual functions can be marked as using the old convention. If no major regressions are found, this new calling convention could become the default for a future SDCC release. Philipp ¹ Not yet really usable for z80-related ports other than z80 itself, as asm-implemented library functions have not yet been ported for those. _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
