Added tests for debug.pvvs.

[vvhitespace] / stdlib / README.md

diff --git a/stdlib/README.md b/stdlib/README.md
index 7508410..2bd317e 100644 (file)
--- a/stdlib/README.md
+++ b/stdlib/README.md
@@ -19,9 +19,9 @@ following reservations:
 ## Heap and Pointers ##
 
 The first 16 heap addresses (`0-15`) are reserved when using the stdlib.
 ## Heap and Pointers ##
 
 The first 16 heap addresses (`0-15`) are reserved when using the stdlib.

-Within that reservation, heap[0] is used by `random` and heap[15] is used
-by `spewreg`. The remaining 14 locations, heap[1]-heap[14] are used as
-general-purpose registers.
+Within that reservation, heap[0] is used by `random` and the block
+heap[2]-heap[15] by the stack rotation subroutines which time-share these
+pseudo-registers between the various stdlib subroutines.

 
 By convention, functions which return a pointer will use the address `0` to
 represent a `NULL` pointer.
 
 By convention, functions which return a pointer will use the address `0` to
 represent a `NULL` pointer.


@@ -37,6 +37,7 @@ header comment for each function to learn the call and return stack.
            1001 ----- print number from stack       (stdio.pvvs)
            1010 ----- stackrotate                   (stack.pvvs)
            1011 ----- stackrotatereverse            (stack.pvvs)
            1001 ----- print number from stack       (stdio.pvvs)
            1010 ----- stackrotate                   (stack.pvvs)
            1011 ----- stackrotatereverse            (stack.pvvs)

+           1100 ----- deepdup                       (stack.pvvs)

          010xxx - math functions
           10000 ----- random                        (math.pvvs)
           10001 ----- absolute value                (math.pvvs)
          010xxx - math functions
           10000 ----- random                        (math.pvvs)
           10001 ----- absolute value                (math.pvvs)


@@ -51,14 +52,23 @@ header comment for each function to learn the call and return stack.
           11111 ----- spew                          (heap.pvvs)
          100xxx - string functions
          100000 ----- strlen                        (string.pvvs)
           11111 ----- spew                          (heap.pvvs)
          100xxx - string functions
          100000 ----- strlen                        (string.pvvs)

-         101xxx - unassigned
+         101xxx - logic functions
+         101000 ----- not                           (logic.pvvs)
+         101001 ----- and                           (logic.pvvs)
+         101010 ----- or                            (logic.pvvs)
+         101011 ----- xor                           (logic.pvvs)
+         101100 ----- rshift                        (logic.pvvs)
+         101101 ----- lshift                        (logic.pvvs)

          110xxx - conversion functions
          111xxx - debug functions
          111000 ----- dump heap                     (debug.pvvs)
          111001 ----- dump stack                    (debug.pvvs)
          110xxx - conversion functions
          111xxx - debug functions
          111000 ----- dump heap                     (debug.pvvs)
          111001 ----- dump stack                    (debug.pvvs)

+         111010 ----- print sign                    (debug.pvvs)
+         111011 ----- print magnitude               (debug.pvvs)
+         111100 ----- print string                  (debug.pvvs)

         1xxxxxx - reserved for less common entry points
         1xxxxxx - reserved for less common entry points

-        1000000 ----- slurp registers               (heap.pvvs)
-        1000001 ----- spew registers                (heap.pvvs)
+        1000000 ----- lowbitand                     (logic.pvvs)
+        1000001 ----- isnegative                    (math.pvvs)

         1000010 ----- print sign of number          (stdio.pvvs)
         1000011 ----- print magnitude of number     (stdio.pvvs)
         1000100 ----- print string from stack       (stdio.pvvs)
         1000010 ----- print sign of number          (stdio.pvvs)
         1000011 ----- print magnitude of number     (stdio.pvvs)
         1000100 ----- print string from stack       (stdio.pvvs)