fix broken allot, variable

1 files changed, 12 insertions, 0 deletions

diff --git a/readme.md b/readme.md
index d21df82..07cb0b6 100644
--- a/readme.md
+++ b/readme.md
@@ -239,6 +239,15 @@ store the 8 bit value u into the memory address a.
 ### `c@   ( a -- c )`
 fetch the 8 bit value at memory address a.
 
+### `cell+   ( u -- u' )`
+increment u by the size of one cell.
+
+### `cell-   ( u -- u' )`
+decrement u by the size of one cell.
+
+### `cells   ( u -- u' )`
+transform an amount of cells into an amount of bytes.
+
 ### `char   ( "c" -- c )`
 yield the value of the first character of the next word in the input stream.
 
@@ -429,6 +438,9 @@ write u characters at a to output.
 ### `until   ( ? -- ) IMMEDIATE`
 if the given flag is true, loop back to `begin`.
 
+### `variable   ( "name" -- )`
+create a variable word, which yields an address that can be written and read.
+
 ### `while   ( ? -- ) IMMEDIATE`
 if given flag is true, continue the current begin-while-repeat loop,
 otherwise branch to after.