The return of the Hybrid Sid Player by xAD/Nightfall & Gianluca Renzi (RetroBit Lab)

Based on the Project and Hardware Schematic by Markus Gritsch released in the years 2011-2015 on the forum dangerousprototypes. Thanks Markus.

Changelog:

v1.1 – 30/05/2021

Added:

Firmware Upgrade.

• The update can be done in three ways, one is automatic.
  • 1) The automatic firmware installation is done in case the bootloader doesn’t find any valid application installed.
  • 2) By pressing the SW1 button at the same time with the reset button or at power-on and released it.
  • 3) Using the file browser (the same used to browse the *.SID / *.DMP files), just choose the file with the firmware and it will be installed.

•    A status bar with a scrolling bits displays the writing status of the firmware.
•    The firmware update file must be copied and NOT renamed to the root directory of the USB flash drive.

• Added some illegal/undocumented opcodes to the CPU Emulator:
  • SRE (LSE) Combination of two operations with the same addressing mode (Sub-instructions: EOR, LSR)
  • DCP Combination of two operations with the same addressing mode (Sub-instructions: CMP, DEC)