2014/10/15 下午 10:04:02

iphone Programming Glossary: assembler

ARM vs Thumb performance on iPhone 3GS, non floating point code

http://stackoverflow.com/questions/1198176/arm-vs-thumb-performance-on-iphone-3gs-non-floating-point-code

bytecode itself you can then merge all of your bytecode and optimize that as a whole then when going from byte code to assembler you can optimize. If you had only 3 source files and assumed there were only two optimization levels per opportunity those.. step maximizing the information and hopefully quality of the optimization. Then go from the optimized bc file to ARM assembler. The default setting for llc is with optimization on you do want to allow that optimization as it is the only step that..

Workflow for writing ARM assembly code on the iphone

http://stackoverflow.com/questions/1579950/workflow-for-writing-arm-assembly-code-on-the-iphone

for writing ARM assembly code on the iphone I would like to begin writing ARM assembler and running it on the iPhone. This is not with the intent of using in an app to be released to the app store Basically I.. in a '.s' file and simply add it in your XCode sources or 3 write standalone assembly functions for an external assembler such as NASM. You write assembly code in a '.s' file and generate a '.o' object file using NASM and link the object file.. the object file with your project in XCode. So if you are just trying to write a few assembly instructions then inline assembler would be the easiest way but if you plan on writing several assembly functions then I'd recommend a standalone assembly..

Conditional Compilation in assembler (.s) code for iPhone - how?

http://stackoverflow.com/questions/1709850/conditional-compilation-in-assembler-s-code-for-iphone-how

Compilation in assembler .s code for iPhone how I have a few lines of assembler arm code in an .s file. Just a few routines i need to call. It works.. Compilation in assembler .s code for iPhone how I have a few lines of assembler arm code in an .s file. Just a few routines i need to call. It works fine when building for the device however when i switch.. errors. I tried to compile parts of the .s file conditionally with what i know #if TARGET_IPHONE_SIMULATOR But the assembler doesn't recognize these preprocessor directives of course and none of the conditional compilation techniques for assembler..

Building ARM assembler vorbis decoder lib 'Tremolo' for iPhone

http://stackoverflow.com/questions/2904597/building-arm-assembler-vorbis-decoder-lib-tremolo-for-iphone

ARM assembler vorbis decoder lib 'Tremolo' for iPhone I'm trying to compile Tremolo for iPhone. I've pulled in the files bitwise.c bitwiseARM.s.. _ARM_ASSEM_ GCC_C_LANGUAGE_STANDARD gnu99 GCC_THUMB_SUPPORT YES ... but as soon as xcode reaches the first assembler file bitwiseARM.s I get errors like these tremolo bitwiseARM.s 3 Unknown pseudo op .global tremolo bitwiseARM.s 3 Rest of..

iPhone assembly, compilation error with LDR parameters

http://stackoverflow.com/questions/9735169/iphone-assembly-compilation-error-with-ldr-parameters

those lines with some other instructions Or to replace them with constants Please help because this post llvm gcc assembler LDR syntax didn't help me to solve this problem. iphone assembly apple arm share improve this question .text .set DEC_OPB.. r6num ldr r5 r5num ... r2num .word 258014 r6num .word 0x00800080 r5num .word DEC_OPB when you do the ldr r2 0x1234 the assembler looks for a place nearby to place that number and then uses a pc relative address to load it. If the assembler cannot find.. the assembler looks for a place nearby to place that number and then uses a pc relative address to load it. If the assembler cannot find a place you get an error I dont know if that is what the complaint was about. doesnt sound like the right error...