cs-roll:tools — ordinary primitive
FORTH
CS-ROLL
( 2a 2b 2c ... n -- 2b 2c ... 2a )( | ); |
| ; |
roll a value in the compilation-stack - note that the compilation stack _can_ be seperate in some forth-implemenations. In PFE the parameter-stack is used in a double-cell fashion, so CS-ROLL would 2ROLL a DP-mark and a COMP-magic, see ROLL
dpANS 15.6.2.1020 - standard forth word