timer.s79

ARM入门的好帮手.包含了从简单到相对较复杂的程序.

        NAME timer

        RTMODEL "__code_model", "small"
        RTMODEL "__cpu_mode", "arm"
        RTMODEL "__data_model", "absolute"
        RTMODEL "__endian", "little"
        RTMODEL "__rt_version", "2"
        RTMODEL "__thumb_aware", "enabled"

        RSEG CSTACK:DATA:NOROOT(2)

        EXTERN at91_tc_open
        FUNCTION at91_tc_open,0202H
        EXTERN at91_tc_close
        FUNCTION at91_tc_close,0202H

        PUBLIC at91_tc_open_count
        FUNCTION at91_tc_open_count,0203H
        LOCFRAME CSTACK, 16, STACK
        PUBLIC at91_tc_start
        FUNCTION at91_tc_start,0203H
        PUBLIC at91_tc_stop
        FUNCTION at91_tc_stop,0203H
        LOCFRAME CSTACK, 12, STACK

        RSEG NEARFUNC_A:CODE:REORDER:NOROOT(2)
        
        CFI Names cfiNames0
        CFI StackFrame CFA SP HUGEDATA
        CFI Resource R0:32, R1:32, R2:32, R3:32, R4:32, R5:32, R6:32, R7:32
        CFI Resource R8:32, R9:32, R10:32, R11:32, R12:32, SP:32, LR:32
        CFI VirtualResource RET:32
        CFI EndNames cfiNames0
        
        CFI Common cfiCommon0 Using cfiNames0
        CFI CodeAlign 4
        CFI DataAlign 4
        CFI ReturnAddress RET CODE
        CFI CFA SP+0
        CFI R0 Undefined
        CFI R1 Undefined
        CFI R2 Undefined
        CFI R3 Undefined
        CFI R4 SameValue
        CFI R5 SameValue
        CFI R6 SameValue
        CFI R7 SameValue
        CFI R8 SameValue
        CFI R9 SameValue
        CFI R10 SameValue
        CFI R11 SameValue
        CFI R12 Undefined
        CFI LR Undefined
        CFI RET LR
        CFI EndCommon cfiCommon0
        
        CFI Block cfiBlock0 Using cfiCommon0
        CFI Function at91_tc_open_count
   CODE32   
at91_tc_open_count:
   STMDB    SP!,{R4-R6,LR}     ;; Push
        CFI RET Frame(CFA, -4)
        CFI R6 Frame(CFA, -8)
        CFI R5 Frame(CFA, -12)
        CFI R4 Frame(CFA, -16)
        CFI CFA SP+16
   MOV      R6,R0
   LDR      R0,[R6, #+0]
   LDR      R4,[R0, #+0]
   MOV      R3,#+0x0
   MOV      R2,#+0x1
   LDR      R1,??at91_tc_open_count_0  ;; #+0x808040
   BL       at91_tc_open
   MOV      R3,#+0x0
   MOV      R2,#+0x1
   LDR      R1,??at91_tc_open_count_0  ;; #+0x808040
   LDR      R0,[R6, #+4]
   BL       at91_tc_open
   MOV      R3,#+0x0
   MOV      R2,#+0x1
   LDR      R1,??at91_tc_open_count_0  ;; #+0x808040
   LDR      R0,[R6, #+8]
   BL       at91_tc_open
   MOV      R0,#+0x2
   STR      R0,[R4, #+28]
   MOV      R0,#+0x1
   STR      R0,[R4, #+0]
   MOV      R0,#+0x2
   STR      R0,[R4, #+92]
   MOV      R0,#+0x1
   STR      R0,[R4, #+64]
   MOV      R0,#+0x2
   STR      R0,[R4, #+156]
   MOV      R0,#+0x1
   STR      R0,[R4, #+128]
   STR      R0,[R4, #+192]
   MOV      R0,#+0x38
   STR      R0,[R4, #+196]
   MOV      R0,#+0x6C000
   ADD      R0,R0,#+0x400000
   STR      R0,[R4, #+4]
   MOV      R0,#+0x3E8
   STR      R0,[R4, #+28]
   MOV      R0,#+0x1F4
   STR      R0,[R4, #+20]
   MOV      R0,#+0x1
   STR      R0,[R4, #+0]
   LDR      R0,??at91_tc_open_count_0+4  ;; #+0x46C006
   STR      R0,[R4, #+68]
   MOV      R0,#+0x3E8
   STR      R0,[R4, #+92]
   MOV      R0,#+0x1F4
   STR      R0,[R4, #+84]
   MOV      R0,#+0x1
   STR      R0,[R4, #+64]
   LDR      R0,??at91_tc_open_count_0+8  ;; #+0x46C007
   STR      R0,[R4, #+132]
   MOV      R0,#+0xFF
   ADD      R0,R0,#+0xFF00
   STR      R0,[R4, #+156]
   MOV      R0,#+0x1
   STR      R0,[R4, #+128]
   LDR      R0,[R4, #+32]
   LDR      R0,[R4, #+96]
   LDR      R0,[R4, #+160]
   MOV      R0,#+0x4
   STR      R0,[R4, #+128]
   STR      R0,[R4, #+64]
   LDMIA    SP!,{R4-R6,PC}     ;; return
   DATA     
??at91_tc_open_count_0:
   DC32     +0x808040
   DC32     +0x46C006
   DC32     +0x46C007
        CFI EndBlock cfiBlock0

        RSEG NEARFUNC_A:CODE:REORDER:NOROOT(2)
        CFI Block cfiBlock1 Using cfiCommon0
        CFI Function at91_tc_start
   CODE32   
at91_tc_start:
   MOV      R1,#+0x4
   LDR      R2,[R0, #+0]
   LDR      R0,[R2, #+0]
   STR      R1,[R0, #+0]
   MOV      PC,LR              ;; return
        CFI EndBlock cfiBlock1

        RSEG NEARFUNC_A:CODE:REORDER:NOROOT(2)
        CFI Block cfiBlock2 Using cfiCommon0
        CFI Function at91_tc_stop
   CODE32   
at91_tc_stop:
   STMDB    SP!,{R4,R5,LR}     ;; Push
        CFI RET Frame(CFA, -4)
        CFI R5 Frame(CFA, -8)
        CFI R4 Frame(CFA, -12)
        CFI CFA SP+12
   MOV      R4,R0
   LDR      R1,[R4, #+0]
   LDR      R0,[R1, #+0]
   MOV      R2,#+0x2
   STR      R2,[R0, #+0]
   ADD      R0,R0,#+0x10
   LDR      R5,[R0, #+0]
   LDR      R1,[R0, #+64]
   MOV      R2,#+0x3E8
   MLA      R5,R1,R2,R5
   LDR      R1,[R0, #+128]
   MOV      R0,#+0x240
   ADD      R0,R0,#+0xF4000
   MLA      R5,R1,R0,R5
   LDR      R0,[R4, #+0]
   BL       at91_tc_close
   LDR      R0,[R4, #+4]
   BL       at91_tc_close
   LDR      R0,[R4, #+8]
   BL       at91_tc_close
   MOV      R0,R5, LSL #+1
   LDMIA    SP!,{R4,R5,PC}     ;; return
        CFI EndBlock cfiBlock2

        END
; 
; 380 bytes in segment NEARFUNC_A
; 
; 380 bytes of CODE memory
;
;Errors: none
;Warnings: 1