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## 1. Overview

The cc65 toolset provides a set of pre-defined libraries that allow the user to target the executable image to a variety of hardware platforms. In addition, the user can create a customized environment so that the executable can be targeted to a custom platform. The following instructions provide step-by-step instructions on how to customize the toolset for a target that is not supported by the standard cc65 installation.

The platform used in this example is a Xilinx Field Programmable Gate Array (FPGA) with an embedded 65C02 core. The processor core supports the additional opcodes/addressing modes of the 65SC02, along with the STP and WAI instructions. These instructions will create a set of files to create a custom target, named SBC, for Single Board Computer.

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