1/* Copyright (c) 2012 Georg-Johann Lay 2 All rights reserved. 3 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions are met: 6 7 * Redistributions of source code must retain the above copyright 8 notice, this list of conditions and the following disclaimer. 9 * Redistributions in binary form must reproduce the above copyright 10 notice, this list of conditions and the following disclaimer in 11 the documentation and/or other materials provided with the 12 distribution. 13 * Neither the name of the copyright holders nor the names of 14 contributors may be used to endorse or promote products derived 15 from this software without specific prior written permission. 16 17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 POSSIBILITY OF SUCH DAMAGE. */ 28 29/* $Id: itoa_ncheck.S 2420 2014-04-28 14:05:10Z pitchumani $ */ 30 31#if !defined (__DOXYGEN__) 32#if !defined (__AVR_TINY__) 33 34#include "asmdef.h" 35 36/* char *__itoa_ncheck (int val, char *s, unsigned char radix) */ 37 38#define val_lo r24 39#define val_hi r25 40#define str_lo r22 41#define radix r20 42 43#define sign r27 /* Argument for __utoa_common() */ 44 45ENTRY __itoa_ncheck 46 47 clr sign 48 cpi radix, 10 49 brne 1f 50 tst val_hi 51 brpl 1f 52 53 ; radix == 10 && val < 0: sign = '-' 54 ldi sign, '-' 55 ; val = -val to make val positive 56 com val_hi 57 neg val_lo 58 sbci val_hi, -1 591: XJMP _U(__utoa_common) 60 61ENDFUNC 62 63#endif /* !__AVR_TINY__ */ 64#endif /* !__DOXYGEN__ */ 65