osx - error in backend: 32-bit absolute addressing is not supported in 64-bit mode -

-

hi i'm working on asm intel_syntax noprefix on mac using gcc, reason keep getting error in backend: 32-bit absolute addressing not supported in 64-bit mode has variables, @ moment been use on asm inline?

here's code: 

#include <stdio.h>  char c, b;  int main() {      printf("give me letter: ");     scanf(" %c", &c);  _      _asm(   ".intel_syntax noprefix;"         "xor eax, eax;"     // clear eax         "mov al, byte ptr [c];" // save c in eax         "cmp eax, 65;"      // eax ? "a"         "jl fin;"       // eax < "a" -> fin         "cmp eax, 90;"      // eax ? "z"         "jg upc;"       // eax >= z -> case         "add eax, 32;"      // make low case         "jmp fin;"      // -> fin        "upc:   cmp eax, 97;"       // eax ? "a"         "jl fin;"       // eax < "a" -> fin         "cmp eax, 122;"     // eax ? "z"         "jg fin;"       // eax > "z" -> fin         "sub eax, 32;"      // make case     "fin:   mov byte ptr [b], al;"  // save res in b         ".att_syntax");      printf("case changed : %c\n", b); }

yes, error says, on osx not allowed use absolute references byte ptr [c] assembles to. workaround try byte ptr c[rip].

note bad practice switch syntax in inline assembly block, should use -masm=intel compiler switch. also, gcc inline asm not supposed used that, use constraint mechanism reference arguments.


Comments

Post a Comment

Popular posts from this blog

java - Run spring boot application error: Cannot instantiate interface org.springframework.context.ApplicationListener -

-
i have spring project , try make use spring boot , run @ embadded tomcat following : https://spring.io/guides/gs/rest-service/ this application //@configuration //@enableaspectjautoproxy @springbootapplication @componentscan(basepackages = "gux.prome") public class application { public static void main(string[] args) { springapplication.run(application.class, args); } } if use maven command: mvn spring-boot:run , project starts fine, need debug , run main method @ intelij, exception occurs: exception in thread "main" java.lang.illegalargumentexception: cannot instantiate interface org.springframework.context.applicationlistener : org.springframework.boot.logging.classpathloggingapplicationlistener @ org.springframework.boot.springapplication.createspringfactoriesinstances(springapplication.java:414) @ org.springframework.boot.springapplication.getspringfactoriesinstances(springapplication.java:394) @ org.springframework.bo...
Read more

reactjs - React router and this.props.children - how to pass state to this.props.children -

-
i'm using react-router first time , don't know how think in yet. here's how i'm loading components in nested routes. entry point .js reactdom.render( <router history={hashhistory} > <route path="/" component={app}> <route path="models" component={content}> </route> </router>, document.getelementbyid('app') ); app.js render: function() { return ( <div> <header /> {this.props.children} </div> ); } so child of app content component sent in. i'm using flux , app.js has state , listens changes, don't know how pass state down this.props.children. before using react-router app.js defines children explicitly, passing state natural don't see how now. using couple of react helper methods can add state, props , whatever else this.props.children render: function() { var children = react.ch...
Read more

Excel VBA "Microsoft Windows Common Controls 6.0 (SP6)" Location Changes -

-
i have excel workbook used generate quotations customers. there main page user inputs data, , there buttons generate various pdfs , send them customer. however, 1 user consistently getting error preventing generating , sending pdfs. i beleive "microsoft windows common controls 6.0 (sp6)". it's installed on users' computers. on mine, location "c:\windows\syswow64\mscomctl.ocx" on others "c:\windows\system32\mscomctl.ocx" the user experiencing issues on 32-bit machine, "mscomctl.ocx" file should in system32. have manually put in there, , pointed common controls reference in vba it. issue seems keep reverting looking in syswow64. since folder doesn't exist, can't find it, , can't produce pdfs. i thought perhaps issue user running older version of office (2007) there users on 2013 , 2016. thought perhaps mixture of 64-bit , 32-bit users. user gets sent workbook other users (as quotation process goes further, gets passed ...
Read more