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A166 User's Guide
A166 Introduction Assembling Programs Operands and Expressions 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 < and > Operators % Operator ;; Operator ! Operator MPL Macro Processor MPL Macro Overview MPL Meta Character Defining MPL Macros Calling MPL Macros Local Symbols Expressions Common Functions Bracket Function Comment Function Escape Function METACHAR Function SET Function EVAL Function Comparison Functions Conditional Functions EXIT Function IF Function REPEAT Function WHILE Function Console I/O Functions String Functions LEN Function MATCH Function SUBSTR Function Advanced Literal Delimiters Blank Delimiters Identifier Delimiters Literal and Normal Modes Errors Error Messages AppendixIRPC
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 R0, #'sendchar'
CALL outchar
ENDM
expands as:
MOV R0, #'T'
CALL outchar
MOV R0, #'E'
CALL outchar
MOV R0, #'S'
CALL outchar
MOV R0, #'T'
CALL outchar
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