Propeller Tool: Debug statements weirdness
macca
Posts: 888
Hello,
I'm experiment with the P2 to learn how things are working, and noticed a weird effect of the debug statements on the View Info hex dump of the memory.
With this simple code (don't comment the code, I'm just learning), open the View Info (F8) window.
CON
_clkfreq = 160_000_000
DAT
org $000
cog
mov ptrb, #@lut-@cog
debug (uhex_long(ptrb), udec_long(ptrb))
setq2 #12
rdlong 0, ptrb++
mov ptrb, srcptr
mov ecnt, #3
.loop rdbyte i, ptrb++
rdlut l, i
debug (uhex_long(srcptr), uhex_byte(i), uhex_long(l), udec_long(l))
djnz ecnt, #.loop
jmp #$
srcptr long @prog
i res 1
l res 1
ecnt res 1
DAT
' lookup table
lut long 1000
long 2000
long 3000
DAT
prog
byte $00, $01, $02, $03
The F8 window:
Can you see the last byte sequence (00 01 02 03) ? I can't !
However, if you comment the debug statements:
Here they are!
And the code bytes seems very different.
Seems that the debug statements are messing the hex output, but the program runs as expected so the actual loaded code should be correct.
Bug or something I don't understand ?
Comments
I think you found a bug. I used your code with PNut and below is the lst file from both examples- -- top is with debug, bottom without debug (using notepad++)
The Propeller Tool needs some work to properly reflect what got compiled. Jeff has this on his to-do list.
Cgracey
What kind of environment do you use with punt?
Can you recommend some kind of IDE working with PNUT?
PNut could work under Stephen Moraco's Visual Studio Code setup. I'm hoping he'll give us an update in today''s Zoom meeting at 1pm PST.
Propeller Tool that runs in Windows should soon be showing compilation output properly, though.
Chip is correct. I have developed most of my LED Matrix driver (in P2 Obex) using VSCode and PNut. See the quickbytes page for setup instructions. Upcoming: this environment will also make it easy to switch between various compilers for P2 (e.g., PNut and FlexSpin).
Regards,
Stephen