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Ymir Git (2026/04/28) is an evolving Sega Saturn emulator featuring game loading from various file formats (BIN+CUE, ISO, etc.), automatic BIOS detection, and region switching. It supports up to two players, customizable keybindings, and offers backup RAM capabilities, including a memory manager for save import/export. The emulator also includes save states, rewind (up to one minute), turbo speed, and frame stepping. Recent updates include code reorganization, performance optimizations for VDP2, adjustment of macOS requirements, and improvements to build workflows. The release aims to enhance user experience and functionality. Download is available.
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Ymir Git (2026/04/28) has been released. It is a Sega Saturn emulator currently in development.
Features:
Support for loading games from BIN+CUE, IMG+CCD, MDF+MDS, or ISO files
Automatic detection of IPL (BIOS) ROM
Seamless region switching
Up to two players supported with standard Control Pads on both ports (more features coming)
Fully customizable key configurations
Support for Backup RAM and DRAM cartridges (more features coming)
Integrated backup memory manager for importing and exporting saves, as well as transferring between internal and cartridge RAM
Save states functionality
Rewinding capability (up to one minute at 60 fps), turbo speed, and frame stepping (forwards and backwards)
An evolving, feature-rich debugger
Ymir Changelog:
* chore: Minor reorganization of code
* docs: Updated macOS requirement to version 15 Sequoia
* perf(VDP2): Microoptimization of character fetches
* perf(VDP2): Microoptimization of scroll coordinate calculations
* perf(VDP2): Optimization of vertical mosaic
* Merged pull request #819 from bsdcode/fix_freebsd_ci
* build: Removed vcpkg patch on FreeBSD and upgraded runner to 24.04
* build: Granted permissions to build workflows
