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Ymir Git (2026/08/30) is a work-in-progress Sega Saturn emulator that supports various game file formats (BIN+CUE, IMG+CCD, MDF+MDS, ISO). Key features include automatic BIOS detection, region switching, and support for up to two players with customizable keybindings. It offers backup RAM management, save states, rewinding up to one minute at 60 fps, turbo speed, and a frame step feature. The changelog details performance improvements and fixes related to the VDP-D3D12 graphics, including barrier management and sprite layer rendering. Additional enhancements to the debugger are also part of the update. Download is available.
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Ymir Git (2026/08/30) has been released. It is a developing Sega Saturn emulator.
Features:
Load games from BIN+CUE, IMG+CCD, MDF+MDS, or ISO formats
Automatic detection of IPL (BIOS) ROM
Automatic region selection
Support for up to two players using standard Control Pads on both ports (more features coming)
Completely customizable keybindings
Support for Backup RAM and DRAM cartridges (additional features expected)
Incorporated memory manager for save import/export and internal-to-cartridge RAM transfers
Save states functionality
Rewind capabilities (up to one minute at 60 fps), turbo speed, and frame stepping (both forwards and backwards)
A feature-rich debugger still under development
Ymir Changelog:
* perf(vdp-hw): Eliminated unnecessary rendering time for the transparent meshes layer when enhancement is disabled
* chore(vdp-d3d12): Optimized barrier usage
* fix(vdp-d3d12): Addressed additional barrier issues
* feat(vdp-d3d12): Implemented VDP2 sprite layer rendering
* fix(vdp-d3d12): Resolved barrier issues again, still not fully operational
* fix(vdp-d3d12): Corrected barrier functionality
* chore(vdp-d3d12): Refined barrier setups to support texture barriers
* chore(vdp-d3d12): Limited UAV barriers application to the compositor stage
