xref: /freebsd-11.0-release/sys/boot/forth/screen.4th

\ Copyright (c) 2003 Scott Long <scottl@FreeBSD.org>
\ Copyright (c) 2015 Devin Teske <dteske@FreeBSD.org>
\ All rights reserved.
\ 
\ Redistribution and use in source and binary forms, with or without
\ modification, are permitted provided that the following conditions
\ are met:
\ 1. Redistributions of source code must retain the above copyright
\    notice, this list of conditions and the following disclaimer.
\ 2. Redistributions in binary form must reproduce the above copyright
\    notice, this list of conditions and the following disclaimer in the
\    documentation and/or other materials provided with the distribution.
\ 
\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\ SUCH DAMAGE.
\ 
\ $FreeBSD: head/sys/boot/forth/screen.4th 280924 2015-03-31 22:32:35Z dteske $

marker task-screen.4th

: escc	( -- )	\ emit Esc-[
	91 27 emit emit
;

: ho	( -- )	\ Home cursor
	escc 72 emit	\ Esc-[H
;

: cld	( -- )	\ Clear from current position to end of display
	escc 74 emit	\ Esc-[J
;

: clear	( -- )	\ clear screen
	ho cld
;

: at-xy	( x y -- )	\ move cursor to x rows, y cols (1-based coords)
	escc .# 59 emit .# 72 emit	\ Esc-[%d;%dH
;

: fg	( x -- )	\ Set foreground color
	escc 3 .# .# 109 emit	\ Esc-[3%dm
;

: bg	( x -- )	\ Set background color
	escc 4 .# .# 109 emit	\ Esc-[4%dm
;

: me	( -- )	\ Mode end (clear attributes)
	escc 109 emit
;