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Assembling Programs 
Environment Settings Command Prompt ERRORLEVEL Output Files Listing (LST) File Object (OBJ) File Conditional Assembly Directives Reference CASE COND DATE DEBUG DEFINE ECRM EJECT ELSE ELSEIF ENDIF ERRORPRINT GEN GENONLY IF INCDIR INCLUDE LIST MACRO MOD_CONT MOD_MX51 MOD51 MPL NOAMAKE NOCASE NOCOND NODEBUG NOERRORPRINT NOGEN NOLINES NOLIST NOMACRO NOMOD51 NOMPL NOOBJECT NOPRINT NOREGISTERBANK NOSYMBOLS NOSYMLIST NOXREF OBJECT PAGELENGTH PAGEWIDTH PRINT REGISTERBANK REGUSE RESET RESTORE SAVE SET SYMBOLS SYMLIST TITLE XREF Writing Assembly Programs Control Statements Macro Processor Error Messages AppendixECRM Assembler Directive
| Abbreviation | None. |
| Arguments | None. |
| Default | Generic CALL instructions are not expanded to ECALL instructions. |
| µVision | Options — AX51 — Misc Controls. |
| Description | The ECRM directive signals the AX51 Macro Assembler that the NXP 80C51MX device is operating in Extended Call Return Mode (ECRM). In this mode ACALL, LCALL, and ECALL push 3-bytes return address to stack. Therefore the generic CALL mnemonic can be expanded to an ECALL instructions since RET can return to any function call. Note
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| See Also | |
| Example | AX51 MYFILE.A51 MOD_MX51 ECRM $MX ECRM |
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