File:  [gforth] / gforth / kernel / nio.fs
Revision 1.4: download - view: text, annotated - select for diffs
Tue Dec 8 22:03:12 1998 UTC (23 years, 8 months ago) by anton
Branches: MAIN
CVS tags: v0-4-0, HEAD
updated dates in copyright messages
inserted copyright messages in most files that did not have them
removed outdated files engine/32bit.h engine/strsig.c

    1: \ Number IO
    2: 
    3: \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: 
   21: : pad    ( -- addr ) \ core-ext
   22:     here word-pno-size + aligned ;
   23: 
   24: \ hold <# #> sign # #s                                 25jan92py
   25: 
   26: : hold    ( char -- ) \ core
   27:     pad cell - -1 chars over +! @ c! ;
   28: 
   29: : <# ( -- ) \ core	less-number-sign
   30:     pad cell - dup ! ;
   31: 
   32: : #>      ( xd -- addr u ) \ core	number-sign-greater
   33:     2drop pad cell - dup @ tuck - ;
   34: 
   35: : sign    ( n -- ) \ core
   36:     0< IF  [char] - hold  THEN ;
   37: 
   38: : #       ( ud1 -- ud2 ) \ core		number-sign
   39:     base @ 2 max ud/mod rot 9 over <
   40:     IF
   41: 	[ char A char 9 - 1- ] Literal +
   42:     THEN
   43:     [char] 0 + hold ;
   44: 
   45: : #s      ( +d -- 0 0 ) \ core	number-sign-s
   46:     BEGIN
   47: 	# 2dup or 0=
   48:     UNTIL ;
   49: 
   50: \ print numbers                                        07jun92py
   51: 
   52: : d.r ( d n -- ) \ double	d-dot-r
   53:     >r tuck  dabs  <# #s  rot sign #>
   54:     r> over - spaces  type ;
   55: 
   56: : ud.r ( ud n -- ) \ gforth	u-d-dot-r
   57:     >r <# #s #> r> over - spaces type ;
   58: 
   59: : .r ( n1 n2 -- ) \ core-ext	dot-r
   60:     >r s>d r> d.r ;
   61: : u.r ( u n -- )  \ core-ext	u-dot-r
   62:     0 swap ud.r ;
   63: 
   64: : d. ( d -- ) \ double	d-dot
   65:     0 d.r space ;
   66: : ud. ( ud -- ) \ gforth	u-d-dot
   67:     0 ud.r space ;
   68: 
   69: : . ( n -- ) \ core	dot
   70:     s>d d. ;
   71: : u. ( u -- ) \ core	u-dot
   72:     0 ud. ;
   73: 

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