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:

v1.12 – 18/07/2021

Updated:

• Improved a little bit the file error handling.
  • If you try to load a SID Stereo file a message “Stereo SID detected, but cannot play it!” will be displayed on the OLED screen.
• Modified the modality of visualization of the SID Model of the tune that is playing.
  • Now the display of the SID Model is alternated between the playback mode icon approximately every 5 seconds.

Added:

• Message during the boot that warns a checking of the USB storage and the correct filesystem mounting of the USB pen drive.
• Added six duplicate and probably useless opCodes, we are speaking about the “NOP” (they are $1A, $3A, $5A, $7A, $DA and $FA)
• Added one opcode absolutely useless for our use, we are speaking about the  “JAM”.

Fixed:

• Fixed some opCodes Addressing mode (Accumulator Addressing instead of Immediate Addressing)