In SX Microcontrollers, SX/B Compiler and SX-Key Tool, IsmStudios wrote:

Hello,

I'm using the latest version of the SX-Key IDE and SASM crashes when I do the following:

[code]
rept 5
	rept 3
	jmp $+1
	endr
	
	rept 3
	nop
	endr
endr
[/code]

If I were to remove the rept 5 encasing the inner two rept's, it will assemble with no problem. But here's another weird scenario:
[code]
REPT 5
	mov	rc, #CBURST_HIGH
	rept 3
	nop
	endr
ENDR
[/code]

This has an embedded rept and it assmebles without an issue but once I embedded another one in there, it crashes. My problem is that I'm working with a Delay MACRO written for the XGS and it seems to crash on me when the logic embeds 2 or more [b]rept's[/b] inside another [b]rept[/b] block.

Here's the Delay MACRO:

[code]
DELAY MACRO clocks
; the preprocessor can NOT do floating point math, so another construction would be to scale
; all values by 10 then multiply by 8 rather than 80, for example, a 4.5 uS delay could be
; written
; DELAY(8*45)

; first compute fractional remainder of 10 and delay
IF (((clocks) // 10) > 0)

  ; first 3 clock chunks
  REPT (((clocks) // 10)/3)
    JMP $ + 1
  ENDR

      ; now the remainder if any
  REPT (((clocks) // 10)//3)
    NOP
  ENDR

ENDIF

  ; next multiples of 100
  IF (((clocks) / 100) >= 1)
    ; truncated for brevity
  ENDIF

  ; last compute whole multiples of 10, and delay
  IF (( ((clocks) // 100) / 10) >= 1)
    ; truncated for brevity
  ENDIF

ENDM
[/code]

And the code that I'm trying to write is this:

[code]
REPT 5
mov RC, #CBURST_HIGH	; ( 2 cycles ) 
Delay(11-2) 

mov RC, #CBURST_LOW	; ( 2 cycles ) 
Delay(11-2)
ENDR
[/code]

If you follow the logic of the MACRO, you will find that 9 or (11-2) causes the assembler to create two rept blocks in place of this Delay instruction--which happens to be within the outter [b]REPT 5[/b] block.

Please point me in the right direction  :smile: This is driving me nuts. I hope there's a workaround or a bugfix patch somewhere.

Thanks,

- Lewis [m80] -

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