Assembler comments not recognised as comments by IDE

johngb · Post by **johngb** » Wed May 30, 2007 10:11 am

When I place commented assembler in code the comments are not seen by the IDE as comments: See example below.

Public Function CheckCRC(ByRef pOWData() As Byte)As Boolean
   Dim idx As Byte,
      CRCVal As Byte,
      TempData As Byte,
      TestByte As Byte
    
   For idx = 0 To Bound(pOWData) ' Run through the whole array
      TmpDat = pOWData(idx)   
ASM
      movlw 8
      movwf OW_Idx 			; Do this For all 8 bits of CRCByte
	CRCLOOP
		movf CRCVal,0 			; Put CRC into W
		xorwf TempData,0 		; Xor CRC with CRCData
		movwf TestByte 		; Put results in TestByte
		rrcf TestByte,1 		; Shift TestByte.0 into Carry Bit
		btfss STATUS,C 		; If Carry = 1, account For EXOR feedback gates
		GoTo CRCSHIFT 		; Otherwise just shift CRC And CRCByte
		movf CRCVal,0 			; Get latest copy of CRC
		xorlw 0x18 				; Xor with 18Hex
		movwf CRCVal 			; Keep a copy of results
	CRCSHIFT
		rrcf CRCVal,1 			; Rotate CRC incorporating carry
		rrcf TempData,1 		; Rotate CRCData, carry shifts in but Not important
		decfsz OW_Idx,1 		; Keep track of #times through loop
		GoTo CRCLOOP 		; back To start If Not done all 8 bits
End ASM
   Next                    ' Last byte is the received CRC value should
   Result = (CRCVal = 0)
End Function

Paste the above into the IDE and you will find that the words in the comment such as Xor, For, And & Bit are all highlighted as Keywords.

Shouldn't the IDE recognise ; as a comment?

David Barker · Post by **David Barker** » Wed May 30, 2007 1:35 pm

; is not a legal comment in Swordfish. Anything in a ASM block will just be displayed in the default ASM syntax highlighter colour that the user has selected.

johngb · Post by **johngb** » Wed May 30, 2007 2:13 pm

Is it safe to use the Swordfish syntax for comment on embedded assembler or will the Assembler reject it?

johngb · Post by **johngb** » Wed May 30, 2007 4:35 pm

Just tried it - no it's not safe to use Swordfish comment syntax.

Also found there is no ASM Highlighter setting in the editor's highlight options. The assembler code and comment is presented with highlights as if it were Swordfish code.

This is not what is implied in the help file where the embedded asm example shows comments are shown colour and italicised.

johngb · Post by **johngb** » Wed May 30, 2007 4:45 pm

The following workaround seems to the best compromise at the moment:

;//Comment

This allows you to view the comments as comments in the IDE yet does not conflict with the assembler.