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Null object: Difference between revisions
add task to ARM64 assembly Raspberry Pi
Thundergnat (talk | contribs) (Rename Perl 6 -> Raku, alphabetize, minor clean-up) |
(add task to ARM64 assembly Raspberry Pi) |
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null? if "item was null" . then
</lang>
=={{header|AArch64 Assembly}}==
{{works with|as|Raspberry Pi 3B version Buster 64 bits}}
<lang AArch64 Assembly>
/* ARM assembly AARCH64 Raspberry PI 3B */
/* program nullobj64.s */
/*******************************************/
/* Constantes file */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"
/*******************************************/
/* Initialized data */
/*******************************************/
.data
szCarriageReturn: .asciz "\n"
szMessResult: .asciz "Value is null.\n" // message result
qPtrObjet: .quad 0 // objet pointer
/*******************************************/
/* UnInitialized data */
/*******************************************/
.bss
/*******************************************/
/* code section */
/*******************************************/
.text
.global main
main: // entry of program
ldr x0,qAdrqPtrObjet // load pointer address
ldr x0,[x0] // load pointer value
cbnz x0,100f // is null ?
ldr x0,qAdrszMessResult // yes -> display message
bl affichageMess
100: // standard end of the program
mov x0,0 // return code
mov x8,EXIT // request to exit program
svc 0 // perform the system call
qAdrszMessResult: .quad szMessResult
qAdrszCarriageReturn: .quad szCarriageReturn
qAdrqPtrObjet: .quad qPtrObjet
/********************************************************/
/* File Include fonctions */
/********************************************************/
/* for this file see task include a file in language AArch64 assembly */
.include "../includeARM64.inc"
</lang>
=={{header|ActionScript}}==
<lang actionscript>if (object == null)
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