view lib/kreiderclib/case.as @ 3226:9749d0dfc4a2

Changed a puls PC to rts to save cycles
author David Ladd <drencor-xeen@users.sourceforge.net>
date Sat, 20 Jan 2018 19:32:22 -0600
parents 1647f1874cdf
children
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* Disassembly by Os9disasm of case.r

 section code

toupper: clra   
 ldb   3,s 
 leax  _chcodes,y 
 lda   d,x 
 anda  #4 
 beq   L0022 
 andb  #$df 
 clra   
 rts    
tolower: clra   
 ldb   3,s 
 leax  _chcodes,y 
 lda   d,x 
 anda  #2 
 beq   L0022 
 orb   #$20 
 clra   
 rts    
L0022 ldd   2,s 
 rts    

 endsect