Hutch ML64 macros64.inc and UASM

[hutch--]

Then use it without the dot prefix.

  ; --------------------------------------------------------
  ; exit macro with an optional return value for ExitProcess
  ; --------------------------------------------------------
    exit MACRO optional_return_value
      IFNDEF optional_return_value
        invoke ExitProcess, 0
      ELSE
        invoke ExitProcess,optional_return_value
      ENDIF
    ENDM

[jj2007]

Right. Shorter version:

Code Select Expand

exit MACRO optretval:=<0>
  invoke ExitProcess, optretval
ENDM
  ...
  exit
  exit 123

Under the hood, e.g. as 64-bit code (assembled with ML64):

Code Select Expand

0000000140001A15   | 33 C9                            | xor ecx,ecx                               |
0000000140001A17   | FF 15 EB 05 00 00                | call qword ptr ds:[<&RtlExitUserProcess>] |
0000000140001A1D   | B9 7B 00 00 00                   | mov ecx,7B                                | 7B:'{'
0000000140001A22   | FF 15 E0 05 00 00                | call qword ptr ds:[<&RtlExitUserProcess>] |

[hutch--]

That's the one from the macro help file for 32 bit MASM written before 2000. This is the 21st century MASM version which should build in UASM without the dot prefix.

    .exit MACRO optvar:=<0>
      invoke ExitProcess,optvar
    ENDM