>>I just tried

? -0x00000001

and VFP shows it as -1. At least it works in VFP.
>
>
>This is not doing what you think, it is evaluating 0x00000001 and then applying the unary negation operator to the result.
>
>

>? transform(-0x00000001, "@0")	&& **********
>? transform(0x00000001, "@0")	&& 0x00000001
>? transform(0xffffffff, "@0")	&& 0xffffffff
>

? 0xffffffff = -0x00000001 && .f.