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nva/include/ampere/ga100/key_legend.txt

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