A tiny microcomputer built around the MOS 6502 microprocessor. It is inspired by the emulator at http://www.6502asm.com/.
$0000 - $3FFF: 16K of RAM
$0200 - $0600: 1K video framebuffer
$E000 - $FFFF: 8K of ROM
The 1K of video framebuffer is connected to a 800x600 VGA signal generator, at a resolution of 32x32 in row-major order. Only the low 4 bits are used, via the 6502asm.com palette.