Defines in src/od-acorn

• DEFAULT_SOUND_BITS src/od-acorn/sound.h:34
• DEFAULT_SOUND_FREQ src/od-acorn/sound.h:35
• DEFAULT_SOUND_MAXB src/od-acorn/sound.h:33
• DEFAULT_SOUND_MINB src/od-acorn/sound.h:32
• OS_WITHOUT_MEMORY_MANAGEMENT src/od-acorn/memory.h:12
• SAVE_MEMORY src/od-acorn/memory.h:14
• SOUND16_BASE_VAL src/od-acorn/sound.h:29
• SOUND8_BASE_VAL src/od-acorn/sound.h:30