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AARM Introduction Assembling Programs Operators Control Statements 
Macro Processor Standard Macro Processor 
Standard Macro Controls Defining Standard Macros Calling Standard Macros Local Symbols Exiting A Macro Built-in Macros REPT IRP IRPC Standard Macro Operators NUL Operator & Operator % Operator ;; Operator ! Operator C Preprocessor Exceptions Side-Effects Predefined Macros Examples Error MessagesIRP
The IRP built-in macro is defined as follows:
IRP parm-name, <parm-list> macro-body ENDM
Where
| parm-name | is the parameter name that is used in the macro-body. Each time the macro is expanded, subsequent values from the parm-list are used to replace parm-name in the macro-body. |
| parm-list | is the list of parm-name replacement values. |
| macro-body | is the text that is expanded when the macro is invoked. |
For example:
IRP sendreg, <R0,R1,R3,R4>
MOV R2,sendreg
BL outchar
ENDM
expands as:
MOV R2,R0
BL outchar
MOV R2,R1
BL outchar
MOV R2,R3
BL outchar
MOV R2,R4
BL outchar
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