subrout.s

来自「运行工具为ADS,为ARM体系结构的汇编源泉代码」· S 代码 · 共 16 行

        AREA subrout, CODE, READONLY    ; name this block of code
        ENTRY                           ; mark first instruction
                                        ; to execute
start
        MOV     r0, #10                 ; Set up parameters
        MOV     r1, #3
        BL      doadd                   ; Call subroutine

        B start
doadd   
        ADD     r0, r0, r1              ; Subroutine code
        MOV     pc, lr                  ; Return from subroutine.

        END                             ; Mark end of file