view lib/kreiderclib/clcompare.as @ 2981:9550602c9a0b

sierra/objs_lsl/mnln.asm: Use division quotient, not remainder It calls a routine twice to make a division (L125C) but doesn't check the right register for the result. The result is returned in reg U and the remainder in reg D but the procedure expect the result to be returned in reg D. The divison routine seems to be correct because it is properly used elsewhere in the code. Patch by Guillaume Major and Robert Gault.
author Guillaume Major <guillaume.major@gmail.com>
date Sat, 12 Apr 2014 15:30:03 +0200
parents 1647f1874cdf
children
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* Disassembly by Os9disasm of clcompare.r

 section code

_lcmpr: ldd   2,s 
 cmpd  ,x 
 bne   L0019 
 ldd   4,s 
 cmpd  2,x 
 beq   L0019 
 bcs   L0016 
 lda   #1 
 andcc #254 
 bra   L0019 
L0016 clra   
 cmpa  #1 
L0019 pshs  cc 
 ldd   1,s 
 std   5,s 
 puls  cc 
 leas  4,s 
 rts    

 endsect