Mercurial > hg > Members > kono > nitros9-code
view lib/kreiderclib/bsearch.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 bsearch.r section code bsearch: pshs d,x,y,u ldu 10,s clra clrb L0006 addd #1 std 2,s ldd 14,s L000d subd 2,s bmi L003d ldd 14,s addd 2,s lsra rorb std 4,s addd #-1 pshs d ldd 18,s lbsr ccmult addd 12,s std ,s pshs u jsr [20,s] std ,s++ beq L0041 asla ldd 4,s bcc L0006 addd #-1 std 14,s bra L000d L003d clra clrb bra L0043 L0041 ldd ,s L0043 leas 6,s puls u,pc endsect