X-Git-Url: http://git.smho.de/gw/?p=owSlave2.git;a=blobdiff_plain;f=common%2FOWCRC8.s;fp=common%2FOWCRC8.s;h=7b4131f4b4f27031e9652ebad70e400399c03248;hp=dad74807843cbc0c4a3670477ef077769fdf5173;hb=a6a04f58e4afd20f206fdf4a8a7b3ce4062f1b67;hpb=cd92472e6fd63693741f8e168123a4182802651b diff --git a/common/OWCRC8.s b/common/OWCRC8.s index dad7480..7b4131f 100644 --- a/common/OWCRC8.s +++ b/common/OWCRC8.s @@ -1,67 +1,67 @@ -// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * 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. -// * All advertising materials mentioning features or use of this -// software must display the following acknowledgement: This product -// includes software developed by tm3d.de and its contributors. -// * Neither the name of tm3d.de nor the names of its contributors may -// be used to endorse or promote products derived from this software -// without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT -// OWNER 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. - - -.comm crc,1 - -#define _CRC8_ - -.macro CRCS ; CRC beim Senden - ;crc - push r_crc - lds r_crc,crc - mov r_temp,r_crc - andi r_temp,0x01 - cp r_temp2,r_temp - brne crc2 - lsr r_crc - ldi r_temp,0x8c - eor r_crc,r_temp - rjmp crce -crc2: - lsr r_crc -crce: - sts crc,r_crc - pop r_crc - -.endm - -.macro CRCR; CRC beim Empfangen -.endm - -.macro CRCInit1; CRC initialisierung bei READ_COMMAND -.endm - -.macro CRCInit2; CRC initialisierung bei READ_DATA - ldi r_temp,0 - sts crc,r_temp -.endm +// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * 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. +// * All advertising materials mentioning features or use of this +// software must display the following acknowledgement: This product +// includes software developed by tm3d.de and its contributors. +// * Neither the name of tm3d.de nor the names of its contributors may +// be used to endorse or promote products derived from this software +// without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT +// OWNER 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. + + +.comm crc,1 + +#define _CRC8_ + +.macro CRCS ; CRC beim Senden + ;crc + push r_crc + lds r_crc,crc + mov r_temp,r_crc + andi r_temp,0x01 + cp r_temp2,r_temp + brne crc2 + lsr r_crc + ldi r_temp,0x8c + eor r_crc,r_temp + rjmp crce +crc2: + lsr r_crc +crce: + sts crc,r_crc + pop r_crc + +.endm + +.macro CRCR; CRC beim Empfangen +.endm + +.macro CRCInit1; CRC initialisierung bei READ_COMMAND +.endm + +.macro CRCInit2; CRC initialisierung bei READ_DATA + ldi r_temp,0 + sts crc,r_temp +.endm