adding the AGAIN control word

[rrq/rrqforth.git] / adoc / p_minus.adoc

diff --git a/adoc/p_minus.adoc b/adoc/p_minus.adoc
index 629c926c671505df75bb5d0b332d6d7076789b8a..fddf23ab9bf4225acd38815443971a8fb45fc050 100644 (file)
--- a/adoc/p_minus.adoc
+++ b/adoc/p_minus.adoc
@@ -1,9 +1,13 @@
+// math.asm:   WORD p_minus, '-',fasm
+
 anchor:p_minus[]
 
-Word: -
--------
+=== Word: -
 
-----
-math.asm:      WORD p_minus, '-',fasm
-----
+....
+Data stack: ( v1 v2 -- v3 )
+....
 
+"-" (minus) is a function word that replaces a pair of values with the
+result of reducing the first, v1, with the second, v2. To that end,
+the values are 64-bit signed integers.