Propeller Tool: Debug statements weirdness
macca
Posts: 780
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