forked from acco/chti23
68 lines
No EOL
950 B
ArmAsm
68 lines
No EOL
950 B
ArmAsm
PRESERVE8
|
|
THUMB
|
|
include ../Driver/DriverJeuLaser.inc
|
|
|
|
; ====================== zone de réservation de données, ======================================
|
|
;Section RAM (read only) :
|
|
area mesdata,data,readonly
|
|
|
|
|
|
;Section RAM (read write):
|
|
area maram,data,readwrite
|
|
|
|
index dcd 5512
|
|
SortieSon dcw 0
|
|
|
|
export index
|
|
export SortieSon
|
|
export Callbackson
|
|
|
|
extern Son
|
|
extern LongueurSon
|
|
|
|
; ===============================================================================================
|
|
|
|
|
|
|
|
|
|
;Section ROM code (read only) :
|
|
area moncode,code,readonly
|
|
; écrire le code ici
|
|
|
|
;r0 Son
|
|
;r1 Index
|
|
;r2 Adresse index
|
|
;r3 Pour les calculs
|
|
|
|
Callbackson
|
|
|
|
ldr r2, =index
|
|
ldr r1, [r2]
|
|
|
|
ldr r0, =Son
|
|
|
|
ldr r3, =LongueurSon
|
|
|
|
cmp r1, r3
|
|
bne Conversion
|
|
|
|
mov r0, #0
|
|
|
|
|
|
Conversion
|
|
|
|
add r0, #32768
|
|
mov r3, #719
|
|
mul r0, r3
|
|
mov r3, #65535
|
|
udiv r0, r3
|
|
|
|
|
|
add r1, #1
|
|
str r1, [r2]
|
|
|
|
ldr r3, =SortieSon
|
|
str r3,[r0]
|
|
|
|
|
|
END
|