mini

A mini machine for writing software renderers.

mini maps a raw image to a fixed memory map and runs it. It exposes a framebuffer area (also at a fixed address) for the code to mess with it.

mini runs code in a parallel process under strict seccomp mode — image code cannot do anything else besides drawing, getting hot and crashing.

Build

make. Linux only. Requires SDL 2.0.

Currently only x86 and x86-64 are supported.

Run

./mini image.img

Use --image-size=size to allocate more VA space for the image.

See the sample directory for some code samples.

Images

See arch.h and arch/*.h for the memory map and initial register states. Crashing images are fair game.

Some support for C code is provided. You need to use the mini.ld linker script and compile (at least) with -nostdlib and -fno-pie.