I can imagine this might be why
Processors
* Two Hitachi SuperH-2 7604 32-bit RISC processors at 28.63 MHz (25 MIPS)—each has 4 kB on-chip cache, of which 2 kB can alternatively be used as directly addressable Scratchpad RAM
* SH-1 32-bit RISC processor (controlling the CD-ROM)
* Custom VDP 1 32-bit video display processor (running at 7.1590 MHz on NTSC Systems, 6.7116 MHz for PAL Systems)
* Custom VDP 2 32-bit video display processor (running at 7.1590 MHz on NTSC Systems, 6.7116 MHz for PAL Systems)
* Custom System Control Unit (SCU) with DSP for geometry processing and DMA controller (running at 14.3 MHz)
* Motorola 68EC000 sound controller (running at 11.3 MHz / 1.5 MIPS)
* Yamaha FH1 DSP sound processor, "Saturn Custom Sound Processor" (SCSP), running at 22.6 MHz
* Hitachi 4-bit MCU, "System Manager & Peripheral Control" (SMPC)
Memory
* 1 MB SDRAM as work RAM for both SH-2 CPUs (faster)
* 1 MB DRAM as work RAM for both SH-2 CPUs (slower)
* 512K VDP1 SDRAM for 3D graphics (Texture data for polygon/sprites and drawing command lists)
* 2x 256K VDP1 SDRAM for 3D graphcis (Two framebuffers for double-buffered polygon/sprite rendering)
* 512K VDP2 SDRAM for 2D graphics (Texture data for the background layers and display lists)
* 4 KB VDP2 SRAM for color palette data and rotation coefficient data (local, on-chip SRAM)
* 512 KB DRAM for sound. (Multiplexed as sound CPU work RAM, SCSP DSP RAM, and SCSP wavetable RAM)
* 512 KB DRAM as work RAM for the CD-ROM subsystem's SH-1 CPU
* 32 KB SRAM with battery back-up for data retention.
* 512 KB Mask ROM for the SH-2 BIOS
Emulating something with that many processors aint as easy as switching on a kitchen light :lol: