I thought it was a typo, but I do see that syntax in 1800-2005.
I think it was intended to allow you to grab a fixed-size slice of an array:
Quote:The size of the part-select or slice must be constant, but the position can be variable. The syntax of Verilog is used.
int i = bitvec[j +: k]; // k must be constant.
So, in your case, I think [32-:8] is the slice starting at 32 and going down to get 8 bits, and thus would be the same as [32:25]. However, you could also have bus_name[x-:8] and sometimes x=32 and other times x=24, etc.
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What does -: mean? (Read 1401 times)