Command-line arguments: Difference between revisions
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VincentARM (talk | contribs) (add task to aarch64 assembly raspberry pi 3) |
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For an EXE file, both the <code>DS</code> and <code>ES</code> registers are set to the program segment prefix as soon as the program begins. You'll need to load from offset 81h to FFh to get the command line arguments. |
For an EXE file, both the <code>DS</code> and <code>ES</code> registers are set to the program segment prefix as soon as the program begins. You'll need to load from offset 81h to FFh to get the command line arguments. |
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=={{header|AArch64 Assembly}}== |
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{{works with|as|Raspberry Pi 3B version Buster 64 bits <br> or android 64 bits with application Termux }} |
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<syntaxhighlight lang AArch64 Assembly> |
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/* ARM assembly AARCH64 Raspberry PI 3B */ |
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/* program commandLine64.s */ |
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/************************************/ |
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/* Constantes */ |
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/************************************/ |
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/* for this file see task include a file in language AArch64 assembly*/ |
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.include "../includeConstantesARM64.inc" |
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/************************************/ |
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/* Initialized data */ |
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/************************************/ |
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.data |
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szCarriageReturn: .asciz "\n" |
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/************************************/ |
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/* UnInitialized data */ |
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/************************************/ |
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.bss |
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.align 4 |
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/************************************/ |
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/* code section */ |
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/************************************/ |
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.text |
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.global main |
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main: // entry of program |
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mov fp,sp // fp <- start address |
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ldr x4,[fp] // number of Command line arguments |
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add x5,fp,#8 // first parameter address |
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mov x2,#0 // init loop counter |
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1: |
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ldr x0,[x5,x2,lsl #3] // string address parameter |
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bl affichageMess // display string |
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ldr x0,qAdrszCarriageReturn |
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bl affichageMess // display carriage return |
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add x2,x2,#1 // increment counter |
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cmp x2,x4 // number parameters ? |
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blt 1b // loop |
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100: // standard end of the program |
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mov x0, #0 // return code |
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mov x8,EXIT |
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svc 0 // perform the system call |
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qAdrszCarriageReturn: .quad szCarriageReturn |
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/***************************************************/ |
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/* ROUTINES INCLUDE */ |
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/***************************************************/ |
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/* for this file see task include a file in language AArch64 assembly*/ |
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.include "../includeARM64.inc" |
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</syntaxhighlight> |
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{{Out}} |
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<pre> |
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~/.../rosetta/asm4 $ commandLine64 toto tutu |
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commandLine64 |
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toto |
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tutu |
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</pre> |
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=={{header|Ada}}== |
=={{header|Ada}}== |
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