Hi Grissiom,
did you try:
__bit tempmori;
...
tempmori = mori;
mori = tempmori;
I remember there are only commands to set or to unset SFR-bits
Regards, Rainer
2010/3/28 Grissiom <chaos.pro...@gmail.com>
> Hello all,
>
> When I develop a 8051 program with sdcc-20100320-5743, I get a problem
> about the warning 180, the whole message is:
>
> warning 180: using ~ on bit/bool/unsigned char variables can give
> unexpected results due to promotion to int
>
> The corresponding codes are:
> ======================================
> 54 void motor_switch_ori()
> - 55 {
> | 56 mori = ~mori;
> | 57 }
> ======================================
> the asm code generated by sdcc is:
> ======================================
> 467 _motor_switch_ori:
> 468 ; motor_control.c:56: mori = ~mori;
> 469 setb _P1_6
> 470 ret
> ======================================
> which is definitely not what I want. What could I do to reverse a bit? Or
> it's a compiler's bug?
>
> --
> Cheers,
> Grissiom
>
>
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