oric

This driver emulates the following systems:

• Tangerine Oric 1 [oric1]
• Tangerine Oric Atmos [orica]
• Pravetz Pravetz 8D [prav8d]
• Pravetz Pravetz 8D (Disk ROM) [prav8dd]
• Tangerine Oric Telestrat [telstrat]

• [Bug 1350] Pravetz 8D tape and disk regression
• [Bug 1471] Emulation of 8912 seems to handle low frequencies incorrectly
• [Bug 1470] No READ access to 8912 registers on MESS, possible on real Oric