;-------------------------------------------------------------------------- ; uint2fps16x16.S - convert signed char to fixed16x16 ; ; Copyright (C) 2004, Vangelis Rokas ; ; This library is free software; you can redistribute it and/or modify it ; under the terms of the GNU General Public License as published by the ; Free Software Foundation; either version 2, or (at your option) any ; later version. ; ; This library is distributed in the hope that it will be useful, ; but WITHOUT ANY WARRANTY; without even the implied warranty of ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ; GNU General Public License for more details. ; ; You should have received a copy of the GNU General Public License ; along with this library; see the file COPYING. If not, write to the ; Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, ; MA 02110-1301, USA. ; ; As a special exception, if you link this library with other files, ; some of which are compiled with SDCC, to produce an executable, ; this library does not by itself cause the resulting executable to ; be covered by the GNU General Public License. This exception does ; not however invalidate any other reasons why the executable file ; might be covered by the GNU General Public License. ;-------------------------------------------------------------------------- radix dec ;-------------------------------------------------------- ; public variables in this module ;-------------------------------------------------------- global ___uint2fps16x16 ;-------------------------------------------------------- ; Equates to used internal registers ;-------------------------------------------------------- STATUS equ 0xfd8 WREG equ 0xfe8 FSR0L equ 0xfe9 FSR1L equ 0xfe1 FSR2L equ 0xfd9 POSTDEC1 equ 0xfe5 PREINC1 equ 0xfe4 PLUSW1 equ 0xfe3 PRODL equ 0xff3 PRODH equ 0xff4 S_uint2fps16x16____uint2fps16x16 code ___uint2fps16x16: movlw 0x02 movff PLUSW1, FSR0L movlw 0x01 movff PLUSW1, PRODH clrf WREG clrf PRODL bcf FSR0L, 7 @1: return end