
Source Language Structure UM017105-0511
218
Zilog Developer Studio II – ZNEO™
User Manual
Case Sensitivity
In the default mode, the assembler treats all symbols as case-sensitive. Select the Ignore
Case of Symbols
checkbox of the General page in the Project Settings dialog box to
have the assembler ignore the case of user-defined identifiers (see Ignore Case of Symbols
– see page 49). Assembler reserved words are not case-sensitive.
Assembler Rules
Reserved Words
The following list contains reserved words that the assembler uses. You cannot use these
words as symbol names or variable names. Also, reserved words are not case-sensitive.
.ALIGN .ASCII .ASCIZ .ASECT
.ASG .BES .BLOCK .BSS
.BYTE .chip .COPY .cpu
.DATA .DEF .define .double
.DW24 .ELIF .ELSE .ELSEIF
.EMSG .ENDIF .ENDM .ENDMAC
.ENDMACRO .ENDSTRUCT .EQU .EVAL
.EVEN .EXTERN .FCALL .file
.float .FRAME .GLOBAL .IF
.IFNTRUE .INCLUDE .INT .LIST
.LONG .MACEND .MACRO .MAXBRANCH
.MLIST .MMSG .MNOLIST .NEWBLOCK
.NOLIST .ORG .PAGE .PUBLIC
.REF .SBLOCK .SECT .SET
.SHORT_STACK_FRAME .SPACE .STRING .STRUCT
.TAG .TEXT .trio .USECT
.VAR .VECTOR .wmsg .WORD
.word24 ALIGN ASCII ASCIZ
ASECT B BFRACT BLKB
BLKL BLKP BLKW BYTE
C CHIP COMMENT COND
CONDLIST CPU DB DBYTE
DD DEFB DEFINE DF
DL DS DW DW24
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