MSP430的汇编中正确的函数调用和数组操作

如何解决MSP430的汇编中正确的函数调用和数组操作

我正在制作一个程序，该程序将乘以2的乘方并将乘积放入数组的元素中。我想使用硬件乘法器（并将这些乘积放入一个阵列）和软件乘法器（并将这些乘积放入自己的阵列）来执行此操作。如果可能的话，我也想使用嵌套子程序来做到这一点。我已经到达需要开始调用子例程的地步，但是我陷入了困境。当我拨打第一个电话时，我得到了垃圾。我确信我不熟悉此IDE（Code Composer Studio）和处理器（MSP430F5529），因此通话不正确。

            .cdecls C,LIST,"msp430.h"       ;Include device header file

        .def    RESET                   ;Export program entry-point to
                                        ;make it kNown to linker.
        .def    calc_power
        .def    SW_Mult
        .def    HW_Mult

        .text                           ;Assemble into program memory.
        .retain                         ;Override ELF conditional linking
                                        ;and retain current section.
        .retainrefs                     ;And retain any sections that have
                                        ;references to current section.
        .data
b:      .int    2                       ;Create variable and initialize it to 2
hval:   .int    2                       ;Create variable for product placement init 0
sval:   .int    2                       ;Create variable for product placement init 0

RESET:  mov.w   #__STACK_END,SP         ;Initialize stack pointer
        mov.w   #WDTPW|WDTHOLD,&WDTCTL  ;Stop watchdog timer

;-------------------------------------------------------------------------------
; Main loop
;-------------------------------------------------------------------------------
main:   mov.w   #hwarr,R7  ;starting address of hwarr to R7
        mov.w   #swarr,R8  ;starting address of swarr to R8
        clr.w   R9

hwnext: mov.w   @R7+,R9    ;get next hwarr element
        cmp     #0,R9      ;is it a null?
        jeq     swnext      ;if yes,go to swnext
        call    hcalc_power ;calculate powers of 2
        jmp     hwnext

swnext: mov.w   @R8+,R9    ;get next swarr element
        cmp     #0,R9      ;is it a null?
        jeq     lend        ;if yes,go to end
        call    scalc_power


hcalc_power:
        call    HW_Mult
        mov.w   #hval,R9
        RET

scalc_power:
        call    SW_Mult
        mov.w   #sval,R10
        RET

HW_Mult:
        mov.w   b,&MPY     ;move b to R5
        mov.w   hval,&OP2  ;move val to R6
        nop                 ;3 clock cycles
        nop
        nop
        mov     RESLO,&hval    ;put product in val variable
        RET

SW_Mult:

hwarr:  .int    2,2,2   ;hw mult array
swarr:  .int    2,2   ;sw mult array

lend:   nop

;-------------------------------------------------------------------------------
; Stack Pointer deFinition
;-------------------------------------------------------------------------------
        .global __STACK_END
        .sect   .stack

;-------------------------------------------------------------------------------
; Interrupt Vectors
;-------------------------------------------------------------------------------
         .sect   ".reset"               ; MSP430 RESET Vector
         .short  RESET
         .end