Bloom

Bloom is an experimental Playstation 1 emulator for the SEGA Dreamcast.

It is but a tiny wrapper around other open-source projects:

• PCSX, the Playstation emulator (https://github.com/libretro/pcsx_rearmed)

• Lightrec, MIPS-to-everything JIT compiler (https://github.com/pcercuei/lightrec)

• GNU Lightning, an arch-independent run-time assembler (https://www.gnu.org/software/lightning)

Features

• Hardware CD-ROM support, including original discs, even the copy-protected (libcrypt) ones

• BIN/CUE, CCD/IMG, MDS/MDF, ISO, PBP images are supported

• CHD support can be enabled but isn't recommended, except on consoles with the 32 MiB RAM mod

• Can load image files from CD, IDE (hard drive) or SD cards

• Using HLE emulation for the BIOS, no BIOS file required

• Fully software-rendered for now

• Compatibility should be very good

• It's slow (not a feature).

Building

You need the latest version of KallistiOS installed, and preferably a dc-chain toolchain built with the latest GCC version.

To build Bloom, run:

cd /path/to/bloom
mkdir build
cd build
kos-cmake ..
make

This will build Bloom with the default settings.

To configure Bloom you can use kos-ccmake instead, which will open a (curses-based) user interface with all the options for the project.

Building with debug support

Bloom can be built with full debug output, including the log of the optimizer, the PSX code disassembly, and the SH4 code disassembly.

It is however necesary to first build and install Binutils into the KOS toolchain. To make it easier, there is a script that will automatically download, build and install Binutils:

cd /path/to/bloom
deps/binutils/build.sh

Then, to build Bloom with debug support:

cd /path/to/bloom
mkdir build
cd build
kos-cmake -DCMAKE_BUILD_TYPE=Debug -DLOG_LEVEL=Debug ..
make