Texas Instruments TMS320C54x, User Manual

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Directives Summary
4-5 Assembler Directives
Table 4–1. Assembler Directives Summary (Continued)
(e) Directives that reference other files
Mnemonic and Syntax Description Page
.copy [”]
filename[”]
Include source statements from another file 4-36
.def symbol
1
[, ... , symbol
n
] Identify one or more symbols that are defined in the
current module and may be used in other modules 4-51
.global symbol
1
[, ... , symbol
n
] Identify one or more global (external) symbols 4-51
.include [”] filename[”] Include source statements from another file 4-36
.ref symbol
1
[, ... , symbol
n
] Identify one or more symbols that are used in the cur-
rent module but may be defined in another module 4-51
(f) Directives that define macros
Mnemonic and Syntax Description Page
.macro Identify the source statement as the first line of a mac-
ro definition. You must place .macro in the opcode
field 4-66
.mlib [”]
filename[”]
Define macro library 4-67
.mexit Go to .endm. This directive is useful when error test-
ing confirms that macro expansion will fail. 5-3
.endm End .macro code block 4-44
.var Define a local macro substitution symbol 4-96
(g) Directives that control conditional assembly
Mnemonic and Syntax Description Page
.break [ well-defined expression] End .loop assembly if condition is true. The .break
construct is optional. 4-65
.else well-defined expression Assemble code block if the .if condition is false. The
.else construct is optional. 4-56
.elseif well-defined expression Assemble code block if the .if condition is false and the
.elseif condition is true. The .elseif construct is
optional. 4-56
.endif End .if code block 4-56
.endloop End .loop code block 4-65
.if well-defined expression Assemble code block if the condition is true 4-56
.loop [ well-defined expression] Begin repeatable assembly of a code block 4-65