SLAU131V User guide | 德州仪器 TI.com.cn

SLAU131V October 2004 – February 2020

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6.10 Macro Directives Summary

The directives listed in Table 6-2 through Table 6-6 can be used with macros. The .macro, .mexit, .endm and .var directives are valid only with macros; the remaining directives are general assembly language directives.

Table 6-2 Creating Macros

		See
Mnemonic and Syntax	Description	Macro Use	Directive
.endm	End macro definition	Section 6.2	.endm
macname .macro [parameter₁][,... , parameter_n]	Define macro by macname	Section 6.2	.macro
.mexit	Go to .endm	Section 6.2	Section 6.2
.mlib filename	Identify library containing macro definitions	Section 6.4	.mlib

Table 6-3 Manipulating Substitution Symbols

		See
Mnemonic and Syntax	Description	Macro Use	Directive
.asg ["]character string["], substitution symbol	Assign character string to substitution symbol	Section 6.3.1	.asg
.eval well-defined expression, substitution symbol	Perform arithmetic on numeric substitution symbols	Section 6.3.1	.eval
.var sym₁ [,sym₂ , ...,sym_n]	Define local macro symbols	Section 6.3.6	.var

Table 6-4 Conditional Assembly

		See
Mnemonic and Syntax	Description	Macro Use	Directive
.break [well-defined expression]	Optional repeatable block assembly	Section 6.5	.break
.endif	End conditional assembly	Section 6.5	.endif
.endloop	End repeatable block assembly	Section 6.5	.endloop
.else	Optional conditional assembly block	Section 6.5	.else
.elseifwell-defined expression	Optional conditional assembly block	Section 6.5	.elseif
.if well-defined expression	Begin conditional assembly	Section 6.5	.if
.loop [well-defined expression]	Begin repeatable block assembly	Section 6.5	.loop

Table 6-5 Producing Assembly-Time Messages

		See
Mnemonic and Syntax	Description	Macro Use	Directive
.emsg	Send error message to standard output	Section 6.7	.emsg
.mmsg	Send assembly-time message to standard output	Section 6.7	.mmsg
.wmsg	Send warning message to standard output	Section 6.7	.wmsg

Table 6-6 Formatting the Listing

		See
Mnemonic and Syntax	Description	Macro Use	Directive
.fclist	Allow false conditional code block listing (default)	Section 6.8	.fclist
.fcnolist	Suppress false conditional code block listing	Section 6.8	.fcnolist
.mlist	Allow macro listings (default)	Section 6.8	.mlist
.mnolist	Suppress macro listings	Section 6.8	.mnolist
.sslist	Allow expanded substitution symbol listing	Section 6.8	.sslist
.ssnolist	Suppress expanded substitution symbol listing (default)	Section 6.8	.ssnolist