白小姐四肖必选一肖

芯片IC单片机解密百科

十年专注单片机解密

ARM反汇编指令

YI、GAISHU


BENJIEZHUYAOYIJITIAOARMZHILINGWEILI,JIANGJIERUHEGENJUWENDANGLIJIEARMZHILING,YIJIARMHUIBIANZHISHIZAIFENXIZHONGDEYINGYONG。

白小姐四肖必选一肖SHOUJIYOUXIJIBENSHANGDOUYUNXINGZAIARMZHILINGJIDECPUSHANG,LEJIEARMHUIBIANYOUZHUYUWOMENDUIYOUXIDEFENXISHENRUnativeCENG,WEIWOMENXIUGAIYOUXILUOJITIGONGFENXIJICHU。

XIANZAIDEYOUXIDELUOJIDAIMADUOSHIXIECHENGJIAOBENXINGSHI,ZUICHANGJIANDESHIUnity3DDEC#XINGSHI,cocos2dxDEluaXINGSHI,YIJIUnity3DDEC#HEluaHUNBIANXINGSHI,CHUCIZHIWAIJIYUCHUNC++DEcocos2dxYOUXIYIJINGXIANGDUIBIJIAOSHAO。

LEJIEHUIBIANJIUNENGDUIYOUXIYINQINGJINXINGFENXI,DINGWEIDAOJIAOBENDEJIAZAIHEZHIXINGHANSHU,KEYISHUCHUHANSHUZHIXINGLog,JIAOBENJIAZAILog,dumpYUANSHIJIAOBENDENG,DUIYOUXILUOJIJINXINGGENGZHIJIEDEJIANSHIHEKONGZHI。

JIANYIANZHUANGIDAHUOQITAFANHUIBIANGONGJU,JIAZAIYIGEARMZHILINGJIDEsoWENJIANHUOZHEELFKEZHIXINGWENJIAN,ZAISHIJIANZHONGDUIZHAOXUEXI。


白小姐四肖必选一肖1.1 ARMTIXIJIANJIE


ARMJIAGOU,SHIYIGE32WEIJINGJIANZHILINGJICHULIQIJIAGOU,SHIMUQIANZUIWEIPUBIANSHIYONGDESHOUJICHULIQIJIAGOU。

ARMJIAGOUBIAO:

GUANYUJIAGOU,WOMENXUYAOLEJIEDESHIZICortex A8YIHOUDEJIAGOUDOUZHICHIYINGJIANDUANDIAN,DANGEGECHANGSHANGZAICHUCHANGDESHIHOUBINGWEIKAIQIZHEIGEGONGNENG。

白小姐四肖必选一肖ARM CPUYOU15GETONGYONGJICUNQI,FENBIEBIANHAOWEIR0~R15。QIZHONGR13YEJIAOSP,YONGYUBAOCUNZHANDINGDIZHI;R14YEJIAOLR,YONGYUBAOCUNHANSHUDEFANHUIDIZHI;R15YEJIAOPC,YOUYUARMJIAGOUDEZHILINGYUDU,SHIJIYUNXINGSHIPCJICUNQIBINGBUZHIXIANGDANGQIANZHIXINGDEZHILING,ERSHIZHIXIANGDANGQIANZHILINGDIZHIJIA8CHU。

 

ER、ZHILINGYANGLIJIANGJIE

ZHILINGBIJIAODUO,BUKENENGYEMEIBIYAOYITIAOYITIAOJIANGJIE,YIXIAHUINAJITIAOCHANGYONGDEZHILINGZUOWEILIZIJIANGJIE,QITAMEIYOUSHEJIDEZHILINGDOUKEYIZAISHANGMIANLIANJIEXIAZAIDEWENDANGLIZHAODAOGENGXIANGXIDEJIESHI。


2.1 B/BL


B/BLZHILINGSHIZUICHANGYONGDEJITIAOZHILING,ZUOYONGSHITIAOZHUANDAOZHIDINGDEWEIZHI,XIANGGUANDEWENDANGJIESHIZAIARM7-TDMI-manual-pt2.pdfDE4-8YE。

ZHILINGDEERJINZHIJIESHITU:



白小姐四肖必选一肖CondWEIBIAOSHIZHEITIAOZHILINGSHIHUIZAIHEZHONGTIAOJIANXIAZHIXING,JUTIDAOSHIJIZHONGMEIGETIAOJIANDOUHUIJIBZHILINGJIASHANGHOUZHUI,BIRU“BNE/BEQ/BGT”DENG,YEJIUSHIWOMENSHUXIDETIAOJIANTIAOZHUANZHILING,ZUOWEICHENGXUDEFENZHISHIYONG。

RUTUSHIIDAFANHUIBIANZHONGYIGETIAOJIANTIAOZHUANSHILI:


TUZHONGLIANGTIAOZHILINGBIAOSHI“RUGUOR2DENGYUR0ZETIAOZHUANDAO0x1C04”。

 

白小姐四肖必选一肖“101”ZESHIBZHILINGDEBIAOSHIMA。

白小姐四肖必选一肖LWEIBIAOSHISHIFOUXUYAOBAOCUNGAIZHILINGDEXIAYITIAOZHILINGDAOLRJICUNQI,ZHEILEIBZHILINGJIUJIAOBLZHILING,YIBANYONGYUTIAOZHUANDAOHANSHUNEIBU,QIZHONGLRBAOCUNFANHUIDIZHI。

白小姐四肖必选一肖OffsetSHIMUBIAODIZHIYUGAIZHILINGDEXIANGDUIPIANYI(XUYAOKAOLVDAOCPUDEZHILINGYUDU,YIJIZUOYILIANGWEI,PIANYISHIAN4ZIJIEDUIQIDE)。

XIAMIANHAISHIANSHANGTUDENEITIAOZHILINGZUOLIZISHIJIFENXIGEGEZIDUANDEYISI:


DUIYINGERJINZHI


白小姐四肖必选一肖ANZHAOERJINZHIJIESHITUZHONGDEGESHIPAILIE(CONGGAOWEIDAODIWEI)JIUSHI:

白小姐四肖必选一肖0000 101 0 0000 0000 0000 0000 0000 1011

白小姐四肖必选一肖Cond op L offset

白小姐四肖必选一肖CondBIAOSHIEQ,DENGYUDESHIHOUTIAOZHUAN(ARM7-TDMI-manual-pt2.pdfDE4-5YE)。

101SHIBIAOSHI。

LSHI0,BIAOSHIBUXUYAOBAOCUNXIAYITIAOZHILING。

OffsetSHI1011,ZUOYILIANGWEIJIUSHI101100,YEJIUSHI0x2C。DANGCPUZHIXINGDAOGAIZHILINGSHI(0x1BD0CHU),PCYINGGAIZHIXIANG0x1BD8,SUOYISHIJITIAOZHUANDIZHIJIUSHI0x1BD8+0x2C,YEJIUSHI0x1C04。


白小姐四肖必选一肖2.2 LDR/STR


LDR/STRZHILINGYONGYUXIANGNEICUNDU/XIESHUJU,XIANGGUANWENDANGZAIARM7-TDMI-manual-pt2.pdfDE4-28YE。

白小姐四肖必选一肖ZHILINGDEERJINZHIJIESHIRUTU:



KANQILAIHENFUZA,DANWOMENXUYAOGUANZHUDEDIFANGBUDUO。BUZAIZUOXIANGXIJIESHI,ZHIJIEKANLIZI:

ZHILING


对应二进制


ANZHAOERJINZHIGESHIPAILIE:

白小姐四肖必选一肖1110 01 011001 1100 0010 0000 0000 0000

Cond op IPUBWL  Rn Rd Offset

CondBIAOSHIRENHETIAOJIANDOUKEYI(ARM7-TDMI-manual-pt2.pdfDE4-5YE)。

01SHIZHILINGBIAOSHI。

ISHI0,BIAOSHIoffsetSHIYIGELIJISHU。

白小姐四肖必选一肖BSHI0,BIAOSHICHUANSHUDESHIYIGEZI,ARMZHILINGJIZHONGDE“ZI”SHI8GEZIJIE。

白小姐四肖必选一肖LSHI1,BIAOSHISHIDUNEICUN。

RnSHI0xC,BIAOSHIJIZHIJICUNQISHIR12.

RdSHI2,BIAOSHIBANEICUNZHIDUDAOR2。

白小姐四肖必选一肖OffsetSHI0,BIAOSHIJIZHIJICUNQIXUYAOJIASHANG0.

SUOYIJIESHICHENGZHILINGJIUSHI:


YISIJIUSHI,DUQUR12JICUNQIZHIXIANGDENEICUNDAOR2JICUNQIZHONG,YIGONGDUQU4GEZIJIE(YIGEZI)。

 

SAN、THUMBZHILING


白小姐四肖必选一肖THUMBZHILINGSHIARMZHILINGDEJINGJIANBAN,ZAIRICHANGDEFENXIZHONGYEJINGCHANGHUIPENGDAO,JUTIDEWENDANGZAIARM7-TDMI-manual-pt3.pdf。FENXIFANGFATONGSHANG,BUZAIZHUISHU。YIDUANCHENGXUZHONGYOUKENENGTONGSHICHUXIANZHEILIANGZHONGZHILINGJI,ZHUYAOKAOCPSRJICUNQIZHONGDEBIAOSHIWEIQUEDINGDANGQIANZHIXINGDESHIHEZHONGZHILINGJI:


HONGKUANGJISHIDANGQIANZHILINGJIZHUANGTAI,1BIAOSHIZAITHUMBZHILINGJI,0BIAOSHIZAIARMZHILINGJI。

 

SI、HANSHUCHUANCAN


CONGHUIBIANCENGMIANLAIKAN,BUTONGDEBIANYIFANGSHIDUIHANSHUCHUANCANDEZUOFABUTONG,YIZHONGBIJIAOCHANGJIANDEZUOFASHIBAQIANSIGECANSHUFANGDAOR0~3JICUNQIZHONG,SHENGXIADECANSHUFANGDAOZHANZHONG,HANSHUDEFANHUIZHIFANGZAIR0ZHONG。

白小姐四肖必选一肖RUTU,CYUYANZHONGYIGEJIANDANDEHANSHUDIAOYONG:


白小姐四肖必选一肖DIAOYONGTADEHUIBIANDAIMAZESHI:


白小姐四肖必选一肖KEYIKANDAO,DIAOYONGR6ZHONGDEHANSHU(old_compile)HOU,BAFANHUIZHIZUOWEICANSHUZHIJIEDIAOYONGhasHookedHANSHU。

 

WU、FUDIANSHUJICHU


ZAIKANHUIBIANDAIMADESHIHOU,YOUSHIHOUHUIPENGDAOFUDIANSHUYIJIFUDIANZHILING,ZHEILIJIANDANSHUOSHUOFUDIANSHUZAINEICUNZHONGDEERJINZHIXINGSHI。JUTIJIUSHIIEEE 754BIAOZHUN。

白小姐四肖必选一肖32WEIFUDIANSHUDEERJINZHIGESHIRUTU:


S为符号位,Exp为指数位,Fraction为有效数字。单片机解密技术大全中也谈到指数,指数部分即使用所谓的偏正值形式表示,偏正值为实际的指数大小与一个固定值(32位的情况是127)的和。采用这种方式表示的目的是简化比较。因为,指数的值可能为正也可能为负,如果采用补码表示的话,全体符号位S和Exp自身的符号位将导致不能简单的进行大小比较。正因为如此,指数部分通常采用一个无符号的正数值存储。单精度的指数部分是−126~+127加上偏移值127,指数值的大小从1~254(0和255是特殊值)。浮点小数计算时,指数值减去偏正值将是实际的指数大小。(摘自维基百科http://zh.wikipedia.org/wiki/IEEE_754)

JUTILAIKANGELIZI,FUDIANSHUSHILIUJINZHI:

白小姐四肖必选一肖00 00 80 3F

YEJIUSHI0x3F800000

ERJINZHI

0 01111111 000 0000 0000 0000 0000 0000

S Exp Fraction

SWEI0,DAIBIAOZHEISHIYIGEZHENGSHU。

白小姐四肖必选一肖ExpWEI0x7F,GENJUPIANZHENGZHIDINGYI,ZHENSHIZHISHI0x7F-0x7F=0。

白小姐四肖必选一肖FractionWEI0,ZHUYI,ZHEILIDEFractionSHIERJINZHIXIAOSHU。LIRU,FractionWEI1011001ZEDUIYINGERJINZHIXIAOSHU1.1011001(ZHENGSHUBUFENHENGWEI1,HOUJIEERJINZHIXIAOSHU),ZHUANHUANCHENGSHIJINZHIJIUSHI2^(-0)+2^(-1)+2^(-3)+2^(-4)+2^(-7).

JISUANFANGFAJIUSHI(S)F*2^E,QIZHONGSSHIFUHAOWEI,ESHIZHISHUWEIExp,FSHIYOUXIAOWEIFraction。

SUOYIZHEIGEZHIJIUSHI+2^(-0),YEJIUSHI1.