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???
11/04/08 23:17
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 		 #159673 - asm *functions* embedded in C-majority source file
Responding to: ???'s previous message
Jan Waclawek said:
I still haven't heard a single argument aginst asm *functions* embedded in C-majority source file

As I said earlier, the big problem is in thinking you can just drop odd assembler lines into 'C' code.

In principle, making proper assembler functions that just happen to be within an otherwise 'C' source file should be fine.

In practice, with the Keil implementation, I've given the reasons why this is not actually a good idea.

In general, I think the assembler facilities available inline within a 'C' source file tend to be less capable - sometimes a lot less capable - than the corresponding "dedicated" assembler...?

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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