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

Hey, maybe this might help--

When calling two Delay macros  that evaluate to only 1 rept block each would look like this:
[code]
REPT 5
mov RC, #CBURST_HIGH    ; ( 2 cycles ) 
Delay(4) 

mov RC, #CBURST_LOW    ; ( 2 cycles ) 
Delay(4)
ENDR
[/code]

Doesn't seem to crash for two reasons (even though two rept blocks are being nested within [b]rept 5[/b].
a) When Delay is 4, the macro seems to put only 1 rept block in it's place... Remember that a single nested block compiles fine.
b) Also notice that there are two Delays here but it compiles just fine because I think SASM first unravels the first Delay into "pure code" before evaluating the next macro.

Might look like this after one block is evaluated:
[code]
REPT 5
mov RC, #CBURST_HIGH    ; ( 2 cycles ) 
NOP
NOP
NOP
NOP 

mov RC, #CBURST_LOW    ; ( 2 cycles ) 
Delay(4)
ENDR
[/code]

Which is fine... because the next Delay is going to place only 1 more rept block as well before it unravels it.

In my opinion, it seems SASM is having problem evaluating 1 block before the other--or it doesn't know how to prioritize them... might be a recursive issue. But let's hope not!

Anyway, hope that helps! Also, let me know if you need me to find more cases.

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