On Tue, Oct 14, 2003 at 04:46:17PM -0400, Jacob Welch wrote:
> Pedro Zorzenon Neto wrote:
>
> > In the assembler, there is no "cmp" after "mov", and msp user guide
> >tells that "mov" opcode does not affect Z flag.
> >
> >
> The ADD is the instruction that affects the Z flag, and since the MOV
> doesn't alter Z, it is still intact when the JNE is executed. Mspgcc
> looks like it is correct.
Hi Jacob,
Thanks for the answer, take a look in C code:
(* (int *) (++menu_stack[menu_i].item) != NULL)
I have to compare with zero after the "mov" instruction.
Before it, when the ADD opcode is executed, I have:
(int *) (++menu_stack[menu_i].item)
Not the contents where it points to...
Don't know if I was clear in my explanation...
