Introduction

This is a port of the RISCV GCC toolchain, which has been extended to support the extensions of the Pulpino core.

Build

Run the following command to build the toolchain:

make

This will download a specific version of the RISCV toolchain based on gcc 5.2, patch it with extensions for Pulpino and compile it.

The resulting toolchains should be in the install directory.

Supported cores

This toolchain supports the following Pulpino cores :

• Honey bunny, referred as pulpv0

• Imperio, referred as pulpv1

• Latest version, referred as pulpv2

Usage

The toolchain can be used as the standard RISCV toolchain except that one of the following option must be used:

-march=IXpulpv0
-march=IXpulpv1
-march=IXpulpv2

This option will select the appropriate set of instructions to be used, thus no other RISCV option is needed.