MACRO - Declare Macro Definition
Syntax
<label> macro [<arg>, ..., <arg>]
Description
A macro is a sequence of instructions that can be inserted in the assembly source code by using a single macro call. The macro must first be defined, then it can be referred to in subsequent source code.
Arguments are read in from the source line, stored in a linked list and then counted. The maximum number of arguments would be the number of arguments that would fit on the source line, after the label and macro terms. The maximum source line length is 200.
A macro can call another macro, or may call itself recursively. The maximum number of nested macro calls is 16.
Please refer to Macro Language for more information.
Example
Read macro device, buffer, count
movlw device
movwf ram_20
movlw buffer ; buffer address
movwf ram_21
movlw count ; byte count
call sys_21 ; read file call
endm
See Also
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Microchip Technology Inc. Microchip's Web Site Voice: (480) 792-7200 Fax: (480) 899-9210 Microchip's E-mail Address |
 
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