Merge lp:~iru-muzgo/retro-language/doc-swap-ltgt into lp:retro-language

[Iruatã Souza]

LT_JUMP and GT_JUMP are, respectively, opcode 10 and 11 in the documentation, but 11 and 10 in the code. I just updated the documentation to reflect the code.

=== modified file 'doc/The_Ngaro_Virtual_Machine.rst'
--- doc/The_Ngaro_Virtual_Machine.rst	2012-10-30 22:09:05 +0000
+++ doc/The_Ngaro_Virtual_Machine.rst	2013-05-21 16:57:45 +0000
@@ -450,9 +450,9 @@
 +--------+-----------+-----------+---+-----------+
 |  9     | RETURN    | ;,        |   | ``-``     |
 +--------+-----------+-----------+---+-----------+
-| 10     | LT_JUMP   | <jump,    | x | ``xy-``   |
+| 10     | GT_JUMP   | >jump,    | x | ``xy-``   |
 +--------+-----------+-----------+---+-----------+
-| 11     | GT_JUMP   | >jump,    | x | ``xy-``   |
+| 11     | LT_JUMP   | <jump,    | x | ``xy-``   |
 +--------+-----------+-----------+---+-----------+
 | 12     | NE_JUMP   | !jump,    | x | ``xy-``   |
 +--------+-----------+-----------+---+-----------+
@@ -660,7 +660,38 @@
 the address stack, and set the instruction pointer to it.
 
 
-Opcode 10: LT_JUMP
+Opcode 10: GT_JUMP
+------------------
+Increment the instruction pointer.
+
+Pop the top two values from the stack. If the first stack item is greater than
+the second item, set the instruction pointer to the address stored at the
+memory location following this instruction. If not, continue execution.
+
+This instruction needs to decrement the requested address by one to
+account for the increment of the instruction pointer by the opcode process
+cycle. E.g., if the jump target is 1234, the instruction pointer should be
+set to 1233.
+
+In memory, this will be stored as:
+
+::
+
+  0000 GT_JUMP
+  0001 destination
+
++--------+-------+
+| before | after |
++========+=======+
+| +---+  |       |
+| | 1 |  |       |
+| +---+  |       |
+| | 2 |  |       |
+| +---+  |       |
++--------+-------+
+
+
+Opcode 11: LT_JUMP
 ------------------
 Increment the instruction pointer.
 
@@ -691,37 +722,6 @@
 +--------+-------+
 
 
-Opcode 11: GT_JUMP
-------------------
-Increment the instruction pointer.
-
-Pop the top two values from the stack. If the first stack item is greater than
-the second item, set the instruction pointer to the address stored at the
-memory location following this instruction. If not, continue execution.
-
-This instruction needs to decrement the requested address by one to
-account for the increment of the instruction pointer by the opcode process
-cycle. E.g., if the jump target is 1234, the instruction pointer should be
-set to 1233.
-
-In memory, this will be stored as:
-
-::
-
-  0000 GT_JUMP
-  0001 destination
-
-+--------+-------+
-| before | after |
-+========+=======+
-| +---+  |       |
-| | 1 |  |       |
-| +---+  |       |
-| | 2 |  |       |
-| +---+  |       |
-+--------+-------+
-
-
 Opcode 12: NE_JUMP
 ------------------
 Increment the instruction pointer.