引用楼主 lianghongge 的回复:
TEXTAREA? ;请问这句是什么意思
IMPORT? main
在wince下的kxarm.h有
Module Name:
;
; kxarm.h
;
; Abstract:
;
; This is an implementation of the WINCE/ARM Calling Sequence
; Specification.
;
; Environment:
; String Library
;
; Revision History:
;--
GBLS VBar
VBar SETS "|"
GBLL HaveExceptHandler
GBLS AreaName
GBLS FuncName
GBLS PrologName
GBLS FuncEndName
GBLS ExceptHandler
GBLS ExceptData
AreaName SETS "|.text|"
HaveExceptHandler SETL {FALSE}
MACRO
TEXTAREA
AREA |.text|,ALIGN=2,CODE,READONLY
AreaName SETS "|.text|"
MEND
MACRO
THUMBAREA
AREA |.text|,ALIGN=2,CODE,READONLY,THUMB
AreaName SETS "|.text|"
MEND
MACRO
STARTUPTEXT
AREA |.astart|,ALIGN=2,CODE
AreaName SETS "|.astart|"
MEND
MACRO
START_REGION $NameBegin
LCLS TempName
TempName SETS VBar:CC:"$NameBegin":CC:VBar
EXPORT $TempName[DATA]
$TempName
MEND
MACRO
END_REGION $NameEnd
LCLS TempName
TempName SETS VBar:CC:"$NameEnd":CC:VBar
EXPORT $TempName[DATA]
$TempName
MEND
;
; This macro should be used if the assembly function is in ARM
;
MACRO
NESTED_ARMENTRY $Name
FuncName SETS VBar:CC:"$Name":CC:VBar
PrologName SETS VBar:CC:"$Name":CC:"_Prolog":CC:VBar
FuncEndName SETS VBar:CC:"$Name":CC:"_end":CC:VBar
LCLS ExceptBit
IF HaveExceptHandler
ExceptBit SETS "0x80000000"
ELSE
ExceptBit SETS "0"
ENDIF
AREA |.pdata|,ALIGN=2,PDATA
DCD $FuncName
DCD (($PrologName-$FuncName)/4) :OR: ((($FuncEndName-$FuncName)/4):SHL:8) :OR: 0x40000000 :OR: $ExceptBit
AREA $AreaName,CODE,READONLY
ALIGN 2
EXPORT $FuncName
IF HaveExceptHandler
DCD $ExceptHandler
DCD $ExceptData
HaveExceptHandler SETL {FALSE}
ENDIF
$FuncName
ROUT
MEND
;
; This macro should be used if the assembly function is in THUMB
;
MACRO
NESTED_THUMBENTRY $Name
FuncName SETS VBar:CC:"$Name":CC:VBar
PrologName SETS VBar:CC:"$Name":CC:"_Prolog":CC:VBar
FuncEndName SETS VBar:CC:"$Name":CC:"_end":CC:VBar
LCLS ExceptBit
IF HaveExceptHandler
ExceptBit SETS "0x80000000"
ELSE
ExceptBit SETS "0"
ENDIF
AREA |.pdata|,ALIGN=2,PDATA
DCD $FuncName
DCD (($PrologName-$FuncName)/2) :OR: ((($FuncEndName-$FuncName)/2):SHL:8) :OR: $ExceptBit
AREA $AreaName,CODE,READONLY
ALIGN 2
EXPORT $FuncName
IF HaveExceptHandler
DCD $ExceptHandler
DCD $ExceptData
HaveExceptHandler SETL {FALSE}
ENDIF
$FuncName
ROUT
MEND
;
; This macro should be used if the assembly function is in ARM
;
MACRO
NESTED_ENTRY $Name
FuncName SETS VBar:CC:"$Name":CC:VBar
PrologName SETS VBar:CC:"$Name":CC:"_Prolog":CC:VBar
FuncEndName SETS VBar:CC:"$Name":CC:"_end":CC:VBar
LCLS ExceptBit
IF HaveExceptHandler
ExceptBit SETS "0x80000000"
ELSE
ExceptBit SETS "0"
ENDIF
AREA |.pdata|,ALIGN=2,PDATA
DCD $FuncName
DCD (($PrologName-$FuncName)/4) :OR: ((($FuncEndName-$FuncName)/4):SHL:8) :OR: 0x40000000 :OR: $ExceptBit
AREA $AreaName,CODE,READONLY
ALIGN 2
EXPORT $FuncName
IF HaveExceptHandler
DCD $ExceptHandler
DCD $ExceptData
HaveExceptHandler SETL {FALSE}
ENDIF
$FuncName
ROUT
MEND
MACRO
PROLOG_END
$PrologName
MEND
MACRO
LEAF_ENTRY $Name
FuncName SETS VBar:CC:"$Name":CC:VBar
PrologName SETS "Invalid Prolog"
FuncEndName SETS VBar:CC:"$Name":CC:"_end":CC:VBar
ALIGN 2
EXPORT $FuncName
$FuncName
ROUT
MEND
MACRO
ALTERNATE_ENTRY $Name
LCLS TempName
TempName SETS VBar:CC:"$Name":CC:VBar
EXPORT $TempName
$TempName
MEND
MACRO
ENTRY_END $Name
$FuncEndName
MEND
MACRO
EXCEPTION_HANDLER $Handler
ExceptHandler SETS VBar:CC:"$Handler":CC:VBar
ExceptData SETS "0"
HaveExceptHandler SETL {TRUE}
MEND
MACRO
EXCEPTION_HANDLER_DATA $Handler, $HandlerData
ExceptHandler SETS VBar:CC:"$Handler":CC:VBar
ExceptData SETS VBar:CC:"$HandlerData":CC:VBar
HaveExceptHandler SETL {TRUE}
MEND
MACRO
EXCEPTION_HANDLER_MILLICODE $Handler, $HandlerData
ExceptHandler SETS "$Handler"
ExceptData SETS "$HandlerData"
HaveExceptHandler SETL {TRUE}
MEND
END
只是个宏，嘿嘿。
嵌入式系统