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   AMIGA      Amiga International Echo      2,243 messages   

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   Message 2,137 of 2,243   
   Felice Murolo to All   
   Amiga assembly, bootblock developing   
   17 Oct 23 16:12:46   
   
   MSGID: 2:335/206 652e965f   
   PID: FidoEditor 1.2a   
   TID: hpt/lnx 1.4.0-sta 16-02-06   
   Ciao,   
      
   in past years, when the Amiga was in vogue, I wrote programs for this   
   computer, mainly using the C and ARexx languages.   
      
   30 years later, in recent months I have written some programs for the Amiga,   
   developing them in C under Linux, and then compiling them with a particular   
   version of gcc.   
      
   Lately, I've been very curious about assembly language and, in particular,   
   I've tried my hand at simple programs that use system libraries and open   
   windows or write texts, etc.   
   In Assembly everything is more complicated, but simple programs, mostly for   
   educational use, I can do without problems.   
      
   What I'm obsessing over, however, is writing a routine to incorporate into the   
   floppy bootblock.   
      
   I extracted and disassembled a standard bootblock, generated with the   
   "c:install df0:" program under kick 3.1, I integrated it with a routine that   
   shows colored lines and waits for the left mouse button to be pressed.   
      
   Now I would like to make the message "Press the left mouse button" appear, but   
   I can't figure out how to do it. The call to the "PutStr(string)" function of   
   the "dos.library", which I used in another of the educational programs I   
   mentioned above, causes a Guru Meditation or a Recoverable Error, probably   
   because it fails to open the library.   
      
   This is the source:   
      
   https://fel.hopto.org/test/miobb.asm   
      
   A big thank you in advance to those who will help me.   
      
      
   Ciao.   
   Felix   
      
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