76 lines
2.9 KiB
Plaintext
76 lines
2.9 KiB
Plaintext
// --------------------------------------------------------------------------------
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// KEY LEGEND
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// --------------------------------------------------------------------------------
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//
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// Each define in the .ref file has a 5 field code to say what kind of define it is: i.e. [> RW--R <]
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// The following legend shows accepted values for each of the 5 fields:
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// Read, Write, Internal State, Declaration/Size, and Define Indicator.
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//
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// Read
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// ' ' = Other Information
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// '-' = Field is part of a write-only register
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// 'C' = Value read is always the same, constant value line follows (C)
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// 'R' = Value is read
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//
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//
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// Write
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// ' ' = Other Information
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// '-' = Must not be written (D), value ignored when written (R,A,F)
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// 'W' = Can be written
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//
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//
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// Internal State
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// ' ' = Other Information
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// '-' = No internal state
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// 'X' = Internal state, initial value is unknown
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// 'I' = Internal state, initial value is known and follows (I), see "Reset Signal" section for signal.
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// 'E' = Internal state, initial value is known and follows (E), see "Reset Signal" section for signal.
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// 'B' = Internal state, initial value is known and follows (B), see "Reset Signal" section for signal.
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// 'C' = Internal state, initial value is known and follows (C), see "Reset Signal" section for signal.
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//
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// 'V' = (legacy) Internal state, initialize at volatile reset
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// 'D' = (legacy) Internal state, default initial value at object creation (legacy: Only used in dev_ram.h)
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// 'C' = (legacy) Internal state, initial value at object creation
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// 'C' = (legacy) Internal state, class-based initial value at object creation (legacy: Only used in dev_ram.h)
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//
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//
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// Declaration/Size
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// ' ' = Other Information
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// '-' = Does Not Apply
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// 'V' = Type is void
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// 'U' = Type is unsigned integer
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// 'S' = Type is signed integer
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// 'F' = Type is IEEE floating point
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// '1' = Byte size (008)
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// '2' = Short size (016)
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// '3' = Three byte size (024)
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// '4' = Word size (032)
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// '8' = Double size (064)
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//
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//
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// Define Indicator
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// ' ' = Other Information
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// 'C' = Clear value
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// 'D' = Device
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// 'L' = Logical device.
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// 'M' = Memory
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// 'R' = Register
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// 'A' = Array of Registers
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// 'F' = Field
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// 'V' = Value
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// 'T' = Task
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// 'P' = Phantom Register
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//
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// 'B' = (legacy) Bundle address
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// 'G' = (legacy) General purpose configuration register
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// 'C' = (legacy) Class
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//
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// Reset signal defaults for graphics engine registers.
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// All graphics engine registers use the following defaults for reset signals:
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// 'E' = initialized with engine_reset_
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// 'I' = initialized with context_reset_
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// 'B' = initialized with reset_IB_dly_
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//
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// Reset signal
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// For units that differ from the graphics engine defaults, the reset signals should be defined here:
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