conditional-control-flow.md

Asmc Macro Assembler Reference

Conditional Control Flow

Asmc adds flags and size extensions to directives.

Flag Extension

• [N]A above
• [N]B below
• [N]C carry
• [N]G greater (signed)
• [N]L less (signed)
• [N]O overflow
• [N]P parity
• [N]S signed
• [N]Z zero

Size Extension

• B BYTE
• W WORD
• D DWORD

The format is DIRECIVE[[flags]][[size]] with valid combination DIRECIVE[[S]][[size]], so the only valid flag with expression is S (signed). Note that the size extension only effects the return code from a function call within an expression. As the default return in 64-bit is RAX this should be sized up according to the actual returned value. The expression ( foo() == -1 ) may otherwise fail if the returned value is int (0x00000000FFFFFFFF).

• .ASSERT (extension: size)
• .BREAK
• .CASE
• .CLASS
• .CONTINUE
• .COMDEF
• .DEFAULT
• .ELSE
• .ELSEIF (extension: S, D, SD)
• .ENDC
• .ENDF
• .ENDIF
• .ENDN
• .ENDS
• .ENDSW
• .ENDW
• .ENUM
• .ENUMT
• .FOR (extension: S)
• .GOTOSW
• .IF (extension: flag and size)
• .INLINE
• .NAMESPACE
• .NEW
• .OPERATOR
• .REPEAT
• .RETURN
• .STATIC
• .SWITCH
• .TEMPLATE
• .UNTIL (extension: flag and size)
• .UNTILCXZ
• .WHILE (extension: flag and size)

See Also

Directives Reference