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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 MessagesIRPC
The IRPC built-in macro is defined as follows:
IRPC parm-name, parm-string macro-body ENDM
Where
| parm-name | is the parameter name that is used in the macro-body. Each time the macro is expanded, subsequent characters from the parm-string are used to replace parm-name in the macro-body. |
| parm-string | is the text string whose characters are used to replace parm-name in the macro-body. |
| macro-body | is the text that is expanded when the macro is invoked. |
For example:
IRPC sendchar, TEST
MOV R2, #'sendchar'
BL outchar
ENDM
expands as:
MOV R2, #'T'
BL outchar
MOV R2, #'E'
BL outchar
MOV R2, #'S'
BL outchar
MOV R2, #'T'
BL outchar
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