/* ARM assembly Raspberry PI */
/* program crehtml.s */
/* REMARK 1 : this program use routines in a include file
see task Include a file language arm assembly
for the routine affichageMess conversion10
see at end of this program the instruction include */
/*******************************************/
/* Constantes */
/*******************************************/
.include "../constantes.inc"
.equ MAXILINE, 5
.equ MAXIRANDOMNUMBER, 3
/*********************************/
/* Initialized data */
/*********************************/
.data
szMessDebutPgm: .asciz "Program start. \n"
szRetourLigne: .asciz "\n"
szMessFinOK: .asciz "Program normal end. \n"
szMessErreur: .asciz "Error !!!\n"
szarrayheader: .asciz "\n"
szLine1: .asciz " | X | Y | Z |
|---|
\n"
szDebLine: .asciz "| "
szEndLine: .asciz " |
\n"
szEndCol: .asciz ""
.align 4
iGraine: .int 1234567 @ seed for number random
/*********************************/
/* UnInitialized data */
/*********************************/
.bss
sZoneConv: .skip 24
.align 4
/*********************************/
/* code section */
/*********************************/
.text
.global main
main:
ldr r0,iAdrszMessDebutPgm
bl affichageMess @ start message
ldr r0,iAdrszarrayheader
bl affichageMess
ldr r0,iAdrszLine1
bl affichageMess
mov r4,#1 @ line counter
1: @ begin line loop
ldr r0,iAdrszDebLine
bl affichageMess
mov r0,r4 @ convert line to décimal
ldr r1,iAdrsZoneConv
bl conversion10
mov r2,#0 @ add final zero
strb r2,[r1,r0]
ldr r0,iAdrsZoneConv @ and display N° line
bl affichageMess
ldr r0,iAdrszEndCol
bl affichageMess
mov r5,#0 @ random number counter
2:
mov r0,#10000 @ limit random number
bl genereraleas @ call random
ldr r1,iAdrsZoneConv @ conversion to décimal
bl conversion10
mov r2,#0 @ add final zero
strb r2,[r1,r0]
ldr r0,iAdrsZoneConv @ and display random number
bl affichageMess
ldr r0,iAdrszEndCol
bl affichageMess
add r5,r5,#1 @ increment counter
cmp r5,#MAXIRANDOMNUMBER @ and loop
blt 2b
ldr r0,iAdrszEndLine
bl affichageMess
add r4,r4,#1 @ increment line counter
cmp r4,#MAXILINE @ and loop
blt 1b
ldr r0,iAdrszarrayend
bl affichageMess
ldr r0,iAdrszMessFinOK
bl affichageMess
b 100f
99:
ldr r0,iAdrszMessErreur @ error
bl affichageMess
mov r0, #1 @ return code error
b 100f
100:
mov r7,#EXIT @ program end
svc #0 @ system call
iAdrszMessDebutPgm: .int szMessDebutPgm
iAdrszMessFinOK: .int szMessFinOK
iAdrszMessErreur: .int szMessErreur
iAdrsZoneConv: .int sZoneConv
iAdrszarrayheader: .int szarrayheader
iAdrszLine1: .int szLine1
iAdrszDebLine: .int szDebLine
iAdrszEndCol: .int szEndCol
iAdrszEndLine: .int szEndLine
iAdrszarrayend: .int szarrayend
/***************************************************/
/* Generation random number */
/***************************************************/
/* r0 contains limit */
genereraleas:
push {r1-r4,lr} @ save registers
ldr r4,iAdriGraine
ldr r2,[r4]
ldr r3,iNbDep1
mul r2,r3,r2
ldr r3,iNbDep1
add r2,r2,r3
str r2,[r4] @ maj de la graine pour l appel suivant
cmp r0,#0
beq 100f
mov r1,r0 @ divisor
mov r0,r2 @ dividende
bl division
mov r0,r3 @ résult = remainder
100: @ end function
pop {r1-r4,pc} @ restaur registers
iAdriGraine: .int iGraine
iNbDep1: .int 0x343FD
iNbDep2: .int 0x269EC3
/***************************************************/
/* ROUTINES INCLUDE */
/***************************************************/
.include "../affichage.inc"
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