Ymir Repository Update (April 3, 2026)

The Ymir Git emulator for Sega Saturn, released on April 3, 2026, supports loading games from various file formats (BIN+CUE, IMG+CCD, MDF+MDS, ISO). Key features include automatic BIOS detection, region switching, customizable keybindings, and multiplayer support for two players. It offers save states, rewinding (up to one minute), turbo speed, and a debugger. Recent updates address fixes related to timers, interrupts, cache emulation, and build issues. Users can manage RAM with an integrated memory manager for saves and transfers. The release highlights significant improvements and adjustments, contributing to its user experience.

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Ymir Git (2026/04/03) has been released. This is an evolving emulator for Sega Saturn.

Features:
Load games from BIN+CUE, IMG+CCD, MDF+MDS, or ISO formats
Automatic detection of IPL (BIOS) ROM
Automatic region adjustments
Supports up to two players with standard control pads on both ports (more enhancements planned)
Flexible keybinding options
Support for backup RAM and DRAM cartridges (more updates coming)
Integrated memory manager for importing and exporting saves and transferring between internal and cartridge RAM
Save states feature
Rewind functionality (up to one minute at 60 fps), turbo mode, and frame stepping (forwards and backwards)
A feature-rich debugger currently in progress

Ymir Changelog:
* fix(SCU): Ensure that timer 0 counter wraps around 0x1FF
* fix(VDP1): Validate additional commands before indicating that the VDP1 command list is empty
* fix(SH2): Improvements in interrupt prioritization and triggering (thanks to @celeriyacon)
* fix(SH2): Block interrupts following LDC/LDS/STC/STS instructions (thanks to @celeriyacon)
* fix(SH2): Improvements to cache emulation (thanks to @celeriyacon)
* build: It appears that `softprops/action-gh-release` caused the issue
* build: Attempt to remove the release using the GitHub CLI instead
* build: Revert to the latest version of `softprops/action-gh-release`
* build: Try to resolve release issues by downgrading `softprops/action-gh-release` to 2.5.3
* fix(updater): Protect against various JSON parsing errors
* fix(SCU): Timer enhancements (thanks to @celeriyacon)
* fix(scheduler): Event deadlines are cleared when not scheduled, streamlining `IsScheduled` checks
* fix(VDP2): Revert SH2 bitmap access workaround

Download: Ymir Git (2026/04/03)

Source: Here