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   PASCAL      Pascal programming language discussions      592 messages   

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   Message 149 of 592   
   Dr J R Stockton to All   
   Re: ASM + Pascal calling question   
   24 Feb 11 20:35:57   
   
   b7c2cae9   
   From: Dr J R Stockton    
      
   In comp.lang.pascal.borland message , Wed, 23 Feb 2011 13:43:42, Jim Leonard   
    posted:   
      
   >On Feb 23, 1:31 pm, Marco van de Voort  wrote:   
   >> On 2011-02-23, Jim Leonard  wrote:   
   >>   
   >> > I'm aware that TP7/BP7 pascal programs can call external assembler   
   >> > routines.  But is the opposite possible?  Meaning, can assembler   
   >> > programs call routines in precompiled pascal units?  C and assembly   
   >> > have this relationship (you can call C library routines from asm, and   
   >> > asm libs from C) but was curious if TP7+Tasm had this same   
   >> > relationship.   
   >>   
   >> Yes. Because of the same reason. Both C and Pascal are translated to   
   >> assembler, so in the compiled translation assembler already calls pascal/C   
   >> routines.   
   >   
   >What I meant was:  From my assembler program, can I link in routines   
   >from precompiled pascal units?   
   >   
   >I'm beginning to think not, but would like confirmation either way.   
      
      
   Undoubtedly it is possible, but you might have to write your own linker,   
   or a pre-processor for the Pascal, etc.   
      
      
   What might serve more easily is to take your ASM code, and drop it into   
   a Pascal program that reads essentially   
      
           { whatever makes code in your Pascal units available }   
           begin   
           ASM   
           { what you have in ASM, tweaked }   
           END   
           end.   
      
   That ought to work, but the tweak could be large, and your asm code   
   would need to understand the Pascal call interface.   
      
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