Stack_Size      EQU     0x00000400

                AREA    STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem       SPACE   Stack_Size
__initial_sp

Heap_Size       EQU     0x00000200

                AREA    HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem        SPACE   Heap_Size
__heap_limit



                AREA    RESET, DATA, READONLY
                    EXPORT  __Vectors
__Vectors       DCD     __initial_sp            ; Top of Stack
                DCD     Reset_Handler           ; Reset Handler
__Vectors_End








                AREA    |.data|, DATA, NOINIT, READWRITE
input_vars
s               DCD 0x0
t               DCD 0x0
u               DCD 0x0
v               DCD 0x0
h               DCD 0x0

output_vars
lx              DCD 0x0
hx              DCD 0x0
y               DCD 0x0
z               DCD 0x0

                AREA    |.text|, CODE, READONLY
Const_c DCD 2 ;Constant in memory
Const_e DCD 7 ;Constant in memory






main            PROC

                MOV R0, #15

CONST_A EQU -10 ;Macro constant
CONST_B EQU 3 ;Macro constant
                MOV R0, #CONST_A ;R0 = CONST_A = a
                MOV R1, #CONST_B ;R1 = CONST_B = b

                ADD R2, R0, R1 ;R2 = R0 + R1 = CONST_A + CONST_B

                BX      LR
                ENDP



                LDR R4, =Const_c ;R4 = &Const_c
                LDR R2, [R4] ;R2 = *(R4) =Const_c
                LDR R3, =Const_e ;R3 = &Const_e
                LDR R3, [R3] ;R3 = *(&Const_e) = Const_e



Reset_Handler   PROC
                EXPORT  Reset_Handler             [WEAK]
                BL main
                B       Reset_Handler
                ENDP
                END