Thanks Oleg, fixed.
here is the patch (in case if cvs is not updated yet)
cheers,
~d
Index: msp430.c
===================================================================
RCS file: /cvsroot/mspgcc/gcc/gcc-3.3/gcc/config/msp430/msp430.c,v
retrieving revision 1.78
diff -c -3 -p -r1.78 msp430.c
*** msp430.c 27 Nov 2003 11:18:41 -0000 1.78
--- msp430.c 19 Jan 2004 15:41:30 -0000
*************** emit_indexed_arith (insn, operands, m, c
*** 3008,3013 ****
--- 3008,3014 ----
}
if (followed_compare_condition (insn) != UNKNOWN
+ || GET_CODE(insn) == JUMP_INSN
|| (pattern
&& GET_CODE (pattern) == SET
&& SET_DEST (pattern) == cc0_rtx)
On Monday 19 January 2004 18:18, Oleg Skydan wrote:
> Hi, All !
>
> It looks like I have found a bug.
>
> Here is an extract from the source (for more see attachment):
>
> uint32_t CalcStepTime(uint8_t s)
> {
> uint32_t n=0;
> long a;
> FeedAcc-=48000L*2560;
> if(breaking)
> {
> a=-MaxdV;
> }
> else if(Feed<cframe.Feed)
> {
> a=MaxdV;
> }
> else a=0;
> do
> {
> Feed+=a;
> if(a>0 && Feed>=cframe.Feed)a=0;
> if(Feed<0){ Feed=0; return n; }
> n++;
> }while(Add(Feed,FeedAcc)>=0);
> return n;
> }
>
>
>
> And here is a piece of listing:
>
> 56:bug.c **** if(a>0 && Feed>=cframe.Feed)a=0;
> GAS LISTING C:\DOCUME~1\9335~1\LOCALS~1\Temp/ccEdbaaa.s page 5
>
>
> 172 .stabn 68,0,56,.LM8-CalcStepTime
> 173 .LM8:
> 174 0040 0C4A mov r10, r12
> 175 0042 0D4B mov r11, r13
> 176 0044 1C83 sub #llo(1), r12
> 177 0046 0D73 subc #lhi(1), r13
> 178 0048 0638 jl .L9
> 179 004a 3E87 sub @r7+, r14
> 180 004c 3F77 subc @r7+, r15
> 181 004e 2782 sub #4, r7 ; restore r7 <<restoring r7 in a such
> way will destroy comparison result !!!!!!!
> 182 0050 0228 jlo .L9
> 183 0052 0A43 mov #llo(0), r10
> 184 0054 0B43 mov #lhi(0), r11
> 185 .L9:
>
> I used my own build from the CVS sources from 31.12.03.
>
> All the best !
> Bye.
--
/*****************************************************************
("`-''-/").___..--''"`-._ (\ Dimmy the Wild UA1ACZ
`6_ 6 ) `-. ( ).`-.__.`) State Polytechnical Univ.
(_Y_.)' ._ ) `._ `. ``-..-' Radio-Physics Departament
_..`--'_..-_/ /--'_.' ,' Saint Petersburg, Russia
(il),-'' (li),' ((!.-' +7 (812) 5403923, 5585314
*****************************************************************/
