c - Malloc equivalent for calloc

It's been a white since I've written for Microcontrollers, and I'm trying to refactor some code to work on such a device, in C.

I have a line of code:

Pieces = calloc(ARRAYSIZE, sizeof(struct piece));

http://www.cplusplus.com states that calloc:

Allocates a block of memory for an array of num elements, each of them size bytes long

Would the equivalent malloc operation then be:

Pieces = Malloc(ARRAYSIZE*sizeof(struct piece));

Disregarding that the bits haven't been set to 0, isn't that about the same? Or would I have to allocate a block of memory for ARRAYSIZE times?

Hope you can help.