add a glossary for the decimal device (nga-python specific)

FossilOrigin-Name: 77c361f541d925b60dffbfcb35e9bf24ad583a916196fa19cfdef6e3719bf86d

doc/decimal-glossary.txt

@@ -0,0 +1,296 @@
+dec:*
+
+  Data:  -
+  Addr:  -
+  Decimal: FF-F
+
+Multiply two decimal numbers, returning the result.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+Example #1:
+
+    ,3.1415 ,22 dec:*
+
+dec:+
+
+  Data:  -
+  Addr:  -
+  Decimal: FF-F
+
+Add two decimal numbers, returning the result.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+Example #1:
+
+    ,3.1 ,22 dec:+
+
+dec:-
+
+  Data:  -
+  Addr:  -
+  Decimal: FF-F
+
+Subtract F2 from F1 returing the result.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+Example #1:
+
+    ,22.3 ,0.12 dec:-
+
+dec:-INF
+
+  Data:  -
+  Addr:  -
+  Decimal: -n
+
+Return a value corresponding to negative infinity
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:-eq?
+
+  Data:  -f
+  Addr:  -
+  Decimal: FF-
+
+Compare two decimal values for inequality. Returns `TRUE` if they are not equal or `FALSE` otherwise.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:/
+
+  Data:  -
+  Addr:  -
+  Decimal: FF-F
+
+Divide decimal value F1 by F2.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:INF
+
+  Data:  -
+  Addr:  -
+  Decimal: -n
+
+Return a value corresponding to positive infinity
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:ceiling
+
+  Data:  -
+  Addr:  -
+  Decimal: F-F
+
+Return the smallest integral value greater than or equal to the specified value.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:drop
+
+  Data:  -
+  Addr:  -
+  Decimal: F-
+
+Discard the top item on the decimal stack.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:dup
+
+  Data:  -
+  Addr:  -
+  Decimal: F-FF
+
+Duplicate the top item on the decimal stack.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:dup-pair
+
+  Data:  -
+  Addr:  -
+  Decimal: nm-nmnm
+
+Duplicate the top two items on the stack.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:eq?
+
+  Data:  -f
+  Addr:  -
+  Decimal: FF-
+
+Compare two decimal values for equality. Returns `TRUE` if they are equal or `FALSE` otherwise.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:floor
+
+  Data:  -
+  Addr:  -
+  Decimal: F-F
+
+Perform a mathmatical floor operation on the decimal value.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:gt?
+
+  Data:  -f
+  Addr:  -
+  Decimal: FF-
+
+Compare two decimal values for greater than.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:limit
+
+  Data:  -
+  Addr:  -
+  Decimal: nlu-m
+
+Return n if it is within the lower (l) and upper (u) bounds. If outside the bounds, return the closes boundary value.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+Example #1:
+
+    ,-10 ,5 ,8 dec:limit
+    ,10  ,1 ,15 dec:limit
+
+dec:lt?
+
+  Data:  -f
+  Addr:  -
+  Decimal: FF-
+
+Compare two decimal values for less than.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:max
+
+  Data:  -
+  Addr:  -
+  Decimal: mn-o
+
+Return the greater of two values.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+Example #1:
+
+    ,1 ,7 dec:max
+    ,-8 ,-10 dec:max
+
+dec:min
+
+  Data:  -
+  Addr:  -
+  Decimal: mn-o
+
+Return the lesser of two values.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+Example #1:
+
+    ,1 ,7 dec:min
+    ,-8 ,-10 dec:min
+
+dec:negative?
+
+  Data:  -f
+  Addr:  -
+  Decimal: F-
+
+Return `TRUE` if decimal value is negative or `FALSE` if not.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:over
+
+  Data:  -
+  Addr:  -
+  Decimal: FG-FGF
+
+Put a copy of the second decimal value over the top one.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:pop
+
+  Data:  -
+  Addr:  -
+  Decimal: -F
+
+Pop a decimal value from the alternate stack.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:push
+
+  Data:  -
+  Addr:  -
+  Decimal: F-
+
+Push a decimal value to an alternative stack.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:rot
+
+  Data:  -
+  Addr:  -
+  Decimal: abc-bca
+
+Rotate the top three values.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:swap
+
+  Data:  -
+  Addr:  -
+  Decimal: FG-GF
+
+Exchange the top and second items on the decimal stack.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+dec:to-string
+
+  Data:  -s
+  Addr:  -
+  Decimal: F-
+
+Convert a decimal value into a string.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+decimal:operation
+
+  Data:  ,..n-
+  Addr:  -
+  Decimal: -
+
+Trigger a decimal operation. This is not intended to be used directly.
+
+Class: class:word | Namespace: dec | Interface Layer: retro/python
+
+prefix:,
+
+  Data:  s-
+  Addr:  -
+  Decimal: -F
+
+Interpret time: convert string to a decimal value. Compile time: convert string to a decimal value and compile code to push this value to the float stack.
+
+Class: class:macro | Namespace: prefix | Interface Layer: retro/python