Hi everyone - I'm currently somewhere near the beginning of porting all my assembler code to the Register calling mechanism, but I have a couple of questions I haven't managed to find the answers to online - can anyone help?
1. What registers do we have to preserve when leaving the assembler function? (for normal functions and for class methods) From some early testing it seems not preserving EBX can cause problems (signalling EBX has changed doesn't seem to make any difference)... 2. What register can we assume values for when entering assembler functions? (e.g. ESI always used to be "Self" for methods but it's now in EAX instead.. is ESI free to use these days?) 3. What's the most future-proof way of using $ifdef statements to guard my assembler blocks? At the moment I'm using "$ifdef VER1_9" but this will change when 2.0 is released... Does the compiler set a definition for the default calling method that I can use? Some early testing with my graphics units is showing that the register calling has increased the speed of the methods I've converted by approx. 5%, so good work guys! Thanks very much Lawrence Curwood www.paradicesoftware.com _______________________________________________ fpc-pascal maillist - [EMAIL PROTECTED] http://lists.freepascal.org/mailman/listinfo/fpc-pascal
