25 lines
1.1 KiB
Forth
25 lines
1.1 KiB
Forth
\ Copyright 2022 Bradley D. Nelson
|
|
\
|
|
\ Licensed under the Apache License, Version 2.0 (the "License");
|
|
\ you may not use this file except in compliance with the License.
|
|
\ You may obtain a copy of the License at
|
|
\
|
|
\ http://www.apache.org/licenses/LICENSE-2.0
|
|
\
|
|
\ Unless required by applicable law or agreed to in writing, software
|
|
\ distributed under the License is distributed on an "AS IS" BASIS,
|
|
\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
\ See the License for the specific language governing permissions and
|
|
\ limitations under the License.
|
|
|
|
: aligned ( a -- a ) cell 1 - dup >r + r> invert and ;
|
|
: align here aligned here - allot ;
|
|
|
|
( Dictionary Format )
|
|
: >flags& ( xt -- a ) cell - ; : >flags ( xt -- flags ) >flags& c@ ;
|
|
: >name-length ( xt -- n ) >flags& 1+ c@ ;
|
|
: >params ( xt -- n ) >flags& 2 + sw@ $ffff and ;
|
|
: >size ( xt -- n ) dup >params cells swap >name-length aligned + 3 cells + ;
|
|
: >link& ( xt -- a ) 2 cells - ; : >link ( xt -- a ) >link& @ ;
|
|
: >name ( xt -- a n ) dup >name-length swap >link& over aligned - swap ;
|