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defs: Add Bt.Sec for atari and corsham
author Tormod Volden <debian.tormod@gmail.com>
date Sat, 07 Mar 2020 23:52:40 +0100
parents 1647f1874cdf
children
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* Disassembly by Os9disasm of devtyp.r

 section code

* OS-9 system function equates

I$GetStt equ $8d 

isatty: ldd   2,s 
 pshs  d 
 bsr   devtyp 
 std   ,s++ 
 beq   L000c 
 clrb   
 rts    
L000c incb   
 rts    
devtyp: lda   3,s 
 clrb   
 leas  -32,s 
 leax  ,s 
 os9 I$GetStt 
 lda   ,s 
 leas  32,s 
 lblo  _os9err 
 tfr   a,b 
 clra   
 rts    

 endsect