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???
11/06/08 06:51
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 		 #159814 - That is the point
Responding to: ???'s previous message
If you are writing in C an feel the need to add an ASM funtion it is because you think you can do it better, Faster, and smaller in ASM then the compiler can. Using a C wrapper for an ASM function means the compiler must decide what to save, not you.
If you call a 100% ASM funtion from C you save only what you use. You can call and goto to your hearts content. The compiler will not care. Your program may if you do not restore things to normal. This is very important in interrupt functions.

List of 48 messages in thread
TopicAuthorDate
Asm and C            01/01/70 00:00      
   Depends!            01/01/70 00:00      
      Also            01/01/70 00:00      
         No! Not Inline!!            01/01/70 00:00      
            why not inline?            01/01/70 00:00      
               I agree with Andy (at least for Keil), but ....            01/01/70 00:00      
                  Keil specifically            01/01/70 00:00      
                     Keil and reasoning            01/01/70 00:00      
                        Jan...Take it from experience...            01/01/70 00:00      
                           can you please explain?            01/01/70 00:00      
                              Example??            01/01/70 00:00      
                                 I am curious            01/01/70 00:00      
                              Use these references in lieu of examples:            01/01/70 00:00      
                              I explained it earlier; example here            01/01/70 00:00      
                                 I now see the point with Keil...            01/01/70 00:00      
                                    Often intrinsic use of inline assembler            01/01/70 00:00      
                                       Not a safe assumption?            01/01/70 00:00      
                                          No, extrapolation not allowed            01/01/70 00:00      
                                          but if it is a macro...            01/01/70 00:00      
                                             A limited example            01/01/70 00:00      
                                                an opinion            01/01/70 00:00      
                     Keil specifically - more            01/01/70 00:00      
               Why Not inline C            01/01/70 00:00      
               Inline assembler - Avoid! Avoid!!            01/01/70 00:00      
                  in order to keep things together            01/01/70 00:00      
                     I do            01/01/70 00:00      
                        from where I sit...            01/01/70 00:00      
                           you said it            01/01/70 00:00      
                              this has nothing to do with it            01/01/70 00:00      
                                 asm *functions* embedded in C-majority source file            01/01/70 00:00      
                                 Whay Not???            01/01/70 00:00      
                                    My view point on ASM in C            01/01/70 00:00      
                                       That is the point            01/01/70 00:00      
                                 here is one - at least re Keil            01/01/70 00:00      
                     Maybe not here, but...            01/01/70 00:00      
            I do not disagree            01/01/70 00:00      
   Compiler ?            01/01/70 00:00      
      Get the manual when/where you get the compiler            01/01/70 00:00      
   and C in asm ?            01/01/70 00:00      
      C first?            01/01/70 00:00      
         not used to call compiler generated asm so translate by hand            01/01/70 00:00      
      if a compiler can do it            01/01/70 00:00      
      depends on the compiler            01/01/70 00:00      
         SDCC...            01/01/70 00:00      
            What assembler?            01/01/70 00:00      
               SB-asm            01/01/70 00:00      
                  In principle this should work.            01/01/70 00:00      
                  OTOH, why not simply write in ASM?            01/01/70 00:00      

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