Uncovering Issues with the AY-3-8913 Programmable Sound Generator: A Look Back at a Classic Audio Chip

The General Instruments AY-3-8910, a renowned Programmable Sound Generator (PSG), has made its mark across various electronic systems, most notably in the celebrated Apple II soundcards like the Mockingboard and diverse arcade machines. This sound chip gained popularity for its ability to produce rich audio experiences in gaming and computing, making it a staple during the earlier years of personal computing.
In addition to the standard AY-3-8910, General Instruments also developed two simplified versions, known as the AY-3-8912 and the AY-3-8913. These variants were intended to provide cost-effective options, with the key distinction being the number of General Purpose Input/Output (GPIO) banks available in the integrated circuit packageone for the AY-3-8912 and none for the AY-3-8913. However, recent research conducted by individuals such as the user known as
Angela Thompson










