os_cpu_c.s

基于ARM应用的源码

; generated by Norcroft  ARM C vsn 4.90 (ARM Ltd SDT2.50) [Build number 80]

        AREA |C$$code|, CODE, READONLY

|x$codeseg| DATA

OSTaskStkInit
        SUB      a4,a3,#4
        STR      a1,[a4],#-4
        STR      a1,[a4],#-4
        STR      a3,[a4,#0]
        SUB      a3,a4,#4
        MOV      a1,#0
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3],#-4
        STR      a1,[a3,#0]
        MOV      a1,a2
        SUB      a2,a3,#4
        STR      a1,[a2],#-4
        MOV      a1,#0x13
        STR      a1,[a2,#0]
        MOV      a3,a1
        SUB      a1,a2,#4
        STR      a3,[a1,#0]
        MOV      pc,lr

OSTaskCreateHook
        MOV      pc,lr

OSTaskDelHook
        MOV      pc,lr

OSTaskSwHook
        MOV      pc,lr

OSTaskStatHook
        MOV      pc,lr

OSTimeTickHook
        MOV      pc,lr

OSIntCtxSw
|L000174.J2.OSIntCtxSw|
        LDR      a1,[pc, #L000184-.-8]
        MOV      a2,#1
        STR      a2,[a1,#0]
        MOV      pc,lr
L000184
        DCD      |x$dataseg|

|x$dataseg|
need_to_swap_context
        DCD      0x00000000

        EXPORT OSIntCtxSw
        EXPORT need_to_swap_context
        EXPORT OSTimeTickHook
        EXPORT OSTaskStatHook
        EXPORT OSTaskSwHook
        EXPORT OSTaskDelHook
        EXPORT OSTaskCreateHook

        IMPORT IRQContextSwap
        IMPORT OSIntExit
        IMPORT OSIntNesting
        IMPORT uHALr_RequestSystemTimer
        IMPORT OSTimeTick
        IMPORT uHALr_InitTimers
        IMPORT uHALr_InitInterrupts
        IMPORT uHALir_DefineIRQ
        IMPORT ARMDisableInt
        IMPORT uHALr_ResetMMU
        IMPORT uHALr_printf
        IMPORT |Lib$$Request$$armlib$$_cn.32l|, WEAK

        END