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Author	Topic: InLine Assembler
Stavros A Petridis Member	posted May 30, 2002 07:48 AM Bern, Brilliant idea,but i am not sure if this technique is cross-platform safe (pb/cc 2.0 ,2.11 3.0 - pb/dll 6.11 etc) Maybe PB will change (or has changed between versions) the way that assigns register vars to specific cpu registers. I am using this routine with pb/cc and pb/dll. Any thoughts ? Regards Stavros ------------------ IP: Logged
Bern Ertl Member	posted May 30, 2002 08:05 AM Excellent question Stavros. I don't have an answer. We'll need someone from PB to confirm/answer if it is safe to rely on the current register assignments for future versions of the compiler. I don't have PB/CC currently, so I haven't tested with it. You should be able to modify my sample code to PRINT instead of MSGBOX and see if it behaves the same. I would expect that it does. ------------------ Bernard Ertl IP: Logged
Stavros A Petridis Member	posted May 30, 2002 08:28 AM Bern, The results of your test program are the same in PB/CC 2.11 too. My fear remains that some day there will be an Episode 9 that will change this . Regards Stavros ------------------ [This message has been edited by Stavros A Petridis (edited May 30, 2002).] IP: Logged
Tom Hanlin Member	posted May 30, 2002 12:19 PM The way REGISTER assignments are handled may change in the future. It's safe technique, if you can rely on using a specific compiler version-- that is, we're obviously not going to change the code for PB/DLL 6.11, for example. To put it another way, the problem lies in "future-proofing". Considering that they're likely to make no appreciable difference in speed, I'd be inclined to avoid such shortcuts. ------------------ Tom Hanlin PowerBASIC Staff IP: Logged
Bern Ertl Member	posted May 30, 2002 12:37 PM Thanks Tom. I'll be sure to test PB7 and future compilers for any changes. ------------------ Bernard Ertl IP: Logged

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