Hognose RC2

Hognose RC2:

Changes since Hognose RC1:

• Config.txt: simplify debug selection using os_prefix
• Tube: Fix a bug that broke tube detection (#156)
• Pi 3A+/3B+ Set arm_freq to 1200MHz to avoid soft temp limit (#154)
• Pi 4: Fix cache issues with self modifying code (#151) (#152)
• All: Generate fresh Pi info string on demand (inc. latest temps and speeds) and don't zero pad
• 6502/65815 Co Pro: Include Co Pro number/name in SPHERE REM (#148)
• 6502/65816 Co Pro: Indicate current Co Pro in CALL &2000 (#148)
• 6502 Co Pro: Update Dormann tests to latest, include listing and both 6502 and 65C02 versions
• 6502 Co Pro: Fix bank select issue on Pi 4 (fixes #150)
• 65816 Co Pro: Include test programs
• lib6502 Co Pro: fix Z flag bug in ASL (#153)
• JIT 6502 Co Pro: Support indirect access to IO addresses (e.g. ?&FEF8=65) (#149)
• Native ARM Co Pro: Indicate current Co Pro in *HELP COPROS (#148)
• PDP-11 Co Pro - show halted state in debugger regs command (#157)
• PDP-11 Co Pro - fix panic() hanging the Pi (#157)
• Null Co Pro: wait for reset before exiting
• Frame Buffer: Include Co Pro number/name in VDU Splash Screen (#148)
• Frame Buffer: Correct offset in font 24 (small)
• Frame Buffer: Fix bug in host side OSWRCH redirector (thanks JGH)
• Frame Buffer: VDU 1 should swallow the next character (thanks JGH)
• Frame Buffer: Improvements to the Spash Screen