Data update
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Ingy döt Net
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10248 changed files with 63654 additions and 6775 deletions
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/* ARM assembly AARCH64 Raspberry PI 3B */
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/* program Strip block comments */
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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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.equ BUFFERSIZE, 200
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/*******************************************/
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/* macros */
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/*******************************************/
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//.include "../../ficmacros64.inc" // for developper debugging
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/*********************************/
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/* Initialized data */
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/*********************************/
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.data
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szMessDebutPgm: .asciz "Program 64 bits start. \n"
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szCarriageReturn: .asciz "\n"
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szMessFinOK: .asciz "Program normal end. \n"
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szMessBufferError: .asciz "Error : Buffer too small !!\n"
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szStartComm: .asciz "/*"
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szEndComm: .asciz "*/"
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szString1: .asciz "/**
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* Some comments
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* longer comments here that we can parse.
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*
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* Rahoo
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*/
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function subroutine() {
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a = /* inline comment */ b + c ;
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}
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/*/ <-- tricky comments */
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/**
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* Another comment.
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*/
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function something() {
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}"
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szString2: .asciz "/* toto */tutu/*truc*/etc"
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.align 4
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/*********************************/
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/* UnInitialized data */
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/*********************************/
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.bss
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sBuffer: .skip BUFFERSIZE
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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:
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ldr x0,qAdrszMessDebutPgm
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bl affichageMess // start message
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ldr x0,qAdrszString1
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ldr x1,qAdrszStartComm
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ldr x2,qAdrszEndComm
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ldr x3,qAdrsBuffer
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mov x4,#BUFFERSIZE
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bl suppComment
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ldr x0,qAdrsBuffer
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bl affichageMess
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ldr x0,qAdrszCarriageReturn
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bl affichageMess
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ldr x0,qAdrszMessFinOK
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bl affichageMess
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100:
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mov x8,EXIT
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svc #0 // system call
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qAdrszMessDebutPgm: .quad szMessDebutPgm
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qAdrszMessFinOK: .quad szMessFinOK
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qAdrszCarriageReturn: .quad szCarriageReturn
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qAdrszMessBufferError: .quad szMessBufferError
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qAdrszString1: .quad szString1
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qAdrszString2: .quad szString2
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qAdrszStartComm: .quad szStartComm
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qAdrszEndComm: .quad szEndComm
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qAdrsBuffer: .quad sBuffer
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/******************************************************************/
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/* test execution */
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/******************************************************************/
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/* x0 contains string address */
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/* x1 contains start comment address */
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/* x2 contains end comment address */
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/* x3 contains buffer address */
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/* x4 contains buffer length */
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suppComment:
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stp x5,lr,[sp,-16]!
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stp x6,x7,[sp,-16]!
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stp x8,x9,[sp,-16]!
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stp x10,x11,[sp,-16]!
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mov x5,#0 // indice string
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mov x6,#0 // indice start comment
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mov x7,#0 // comment
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mov x8,#0 // indice write buffer
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1:
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ldrb w9,[x1,x6] // load first byte of comment start
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2:
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ldrb w10,[x0,x5] // load byte string
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cmp x10,#0 // end string ?
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beq 20f
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cmp x7,#1 // comment
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beq 6f
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cmp x10,x9 // compare first byte and byte string
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bne 5f
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3:
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add x6,x6,#1
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ldrb w9,[x1,x6] // load oher byte of comment start
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cmp x9,#0
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beq 4f // end comment ?
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strb w10,[x3,x8] // store byte in buffer
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add x8,x8,#1
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cmp x8,x4 // error size buffer ?
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bge 99f
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add x5,x5,#1 // load byte string
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ldrb w10,[x0,x5]
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cmp x10,#0 // end string ?
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beq 20f
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cmp x10,x9 // compare byte
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beq 3b // loop other char start comment
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strb w10,[x3,x8] // else store char string
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add x8,x8,#1
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cmp x8,x4 // end buffer ?
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bge 99f
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add x5,x5,#1 // increment indice string
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mov x6,#0 // raz indice start comment
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b 1b
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4: // start comment found
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sub x6,x6,#1
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sub x8,x8,x6 // supp write byte buffer
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mov x7,#1 // comment
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add x5,x5,#1 // increment indice string
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b 2b // and loop
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5: // bytes inequals
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strb w10,[x3,x8] // store char string
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add x8,x8,#1
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cmp x8,x4 // end buffer ?
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bge 99f
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add x5,x5,#1 // increment indice string
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b 2b // and loop
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6: // is comment
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mov x6,#0
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8:
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ldrb w9,[x2,x6] // load end comment first char
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9:
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cmp x10,x9 // equal byte string ?
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bne 10f
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add x5,x5,#1
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ldrb w10,[x0,x5] // load other byte
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cmp x10,#0 // end string
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beq 20f
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add x6,x6,#1
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ldrb w9,[x2,x6] // load other byte end comment
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cmp x9,#0 // end end comment ?
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bne 9b // no -> loop
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// comment end
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mov x7,#0 // raz comment
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mov x6,#0 // raz indice start comment
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b 1b
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10: // comment not end
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add x5,x5,#1
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b 2b
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20:
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mov x10,#0 // final zero
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strb w10,[x3,x8] // store char string
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b 100f
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99: // error
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ldr x0,qAdrszMessBufferError
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bl affichageMess
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mov x0,#-1
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100:
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ldp x10,x11,[sp],16
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ldp x8,x9,[sp],16
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ldp x6,x7,[sp],16
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ldp x5,lr,[sp],16
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ret
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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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