143 lines
4 KiB
Text
143 lines
4 KiB
Text
/* ARM assembly Raspberry PI */
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/* program numvinci.s */
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/* REMARK 1 : this program use routines in a include file
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see task Include a file language arm assembly
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for the routine affichageMess conversion10
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see at end of this program the instruction include */
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/*******************************************/
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/* Constantes */
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/*******************************************/
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.include "../constantes.inc"
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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 32 bits start. \n"
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szCarriageReturn: .asciz "\n"
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szMessFinOK: .asciz "Program normal end. \n"
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szMessErreur: .asciz "Error !!!\n"
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szMessVinci: .asciz "Leonardo numbers :\n"
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szMessFibo: .asciz "\nFibonaci numbers :\n"
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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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sZoneConv: .skip 24
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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 r0,iAdrszMessDebutPgm
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bl affichageMess @ start message
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ldr r0,iAdrszMessVinci
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bl affichageMess
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mov r0,#0 @ rank
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mov r1,#1 @ L(0) or L(n-2)
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mov r2,#1 @ L(1) or L(n-1)
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mov r3,#1 @ addition
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mov r4,#25 @ maxi
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bl genererVinci
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ldr r0,iAdrszMessFibo
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bl affichageMess
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mov r0,#0
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mov r1,#0
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mov r2,#1
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mov r3,#0
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mov r4,#25
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bl genererVinci
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ldr r0,iAdrszMessFinOK
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bl affichageMess
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b 100f
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99:
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ldr r0,iAdrszMessErreur @ error
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bl affichageMess
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mov r0, #1 @ return code error
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b 100f
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100:
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mov r7,#EXIT @ program end
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svc #0 @ system call
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iAdrszMessDebutPgm: .int szMessDebutPgm
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iAdrszMessFinOK: .int szMessFinOK
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iAdrszMessErreur: .int szMessErreur
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iAdrsZoneConv: .int sZoneConv
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iAdrszMessVinci: .int szMessVinci
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iAdrszMessFibo: .int szMessFibo
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/***************************************************/
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/* Generation random number */
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/***************************************************/
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/* r0 contains n */
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/* r1 contains L(0) */
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/* r2 contains L(1) */
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/* r3 contains addition */
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/* r4 contains limit number */
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genererVinci:
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push {r5,r6,lr} @ save registers
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mov r6,r0
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cmp r4,#0 @ end compute ?
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ble 100f
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cmp r0,#0 @ L(0) ?
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bne 1f
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mov r0,r1
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bl displayNumber
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add r0,r6,#1 @ increment rank
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sub r4,r4,#1 @ decrement counter
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bl genererVinci
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b 100f
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1:
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cmp r0,#1 @ L(1) ?
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bne 2f
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mov r0,r2
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bl displayNumber
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add r0,r6,#1
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sub r4,r4,#1
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bl genererVinci
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b 100f
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2:
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add r5,r2,r1 @ add L(n-2) L(n-1)
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add r5,r3 @ add addition
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mov r0,r5
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bl displayNumber
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add r0,r6,#1
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sub r4,r4,#1
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mov r1,r2 @ L(n-1) -> L(n-2)
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mov r2,r5 @ number -> L(n-1)
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bl genererVinci
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b 100f
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100: @ end function
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pop {r5,r6,pc} @ restaur registers
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/***************************************************/
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/* display number */
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/***************************************************/
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/* r0 contains number */
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displayNumber:
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push {r1,lr} @ save registers
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ldr r1,iAdrsZoneConv
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bl conversion10
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ldr r0,iAdrsZoneConv
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bl affichageMess
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ldr r0,iAdrszCarriageReturn
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bl affichageMess
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100:
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pop {r1,pc} @ restaur registers
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iAdrszCarriageReturn: .int szCarriageReturn
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/***************************************************/
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/* ROUTINES INCLUDE */
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/***************************************************/
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.include "../affichage.inc"
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