PropBasic Bug?

[FriedV]

Trying to compile:


' ----------------------------------------------------------------------
' File...... Std.lib
' Author.... fgvissel 10.10.2011
' Library Std, Delay Subs & idx vars
' ================================================== ====================

' ----- External Libs --------------------------------------------------

' ----- Conditional Compilation Symbols --------------------------------

' ----- Constants ------------------------------------------------------

' ----- IO Pins --------------------------------------------------------

' ----- Shared (HUB) Variables (Byte, Word, Long) ----------------------

' ----- User Data (DATA, WDATA, LDATA, FILE) ---------------------------

' ----- TASK Definitions -----------------------------------------------

' ----- Local Variables (LONG only) ------------------------------------
error var long = 0 'for error signaling, 0 = no error

tmp1 var long 'those are temp vars for temporary use
tmp2 var long 'mind they are global
tmp3 var long
tmp4 var long
tmp5 var long

' tmp6 var long 'more when needed
' tmp7 var long
' tmp8 var long
' tmp9 var long

' ----- SUB and FUNC Definitions ---------------------------------------
DelayMS SUB 1
DelayUS SUB 1

'{$CODE}
' ----- SUB and FUNC Code ----------------------------------------------
SUB DelayMS
pause __param1
ENDSUB

SUB DelayUS
pauseus __param1
ENDSUB

'================================================= ======================and


' ----------------------------------------------------------------------
' File...... Test_SPI_Task.pbas
' Author.... fgvissel 12.10.2011
' ================================================== ====================

' ----- Device Settings ------------------------------------------------
DEVICE P8X32A, XTAL1, PLL16X
XIN 6_250_000

' ----- External Libs --------------------------------------------------
'{$ifndef StdLib}
'{$define StdLib}
LOAD "C:\work\propeller\propbasic\library\Std.Lib"
'{$endif}
' ----- Conditional Compilation Symbols --------------------------------

' ----- Constants ------------------------------------------------------
Dog_Init CON 10
Dog_OutChar CON 11
Dog_OutString CON 12
Dog_Clear CON 13
Dog_Line1 CON 14
Dog_Line2 CON 15
Dog_Line3 CON 16
Dog_ClearLine1 CON 17
Dog_ClearLine2 CON 18
Dog_ClearLine3 CON 19
Dog_Set CON 20

' ----- IO Pins --------------------------------------------------------
ERR_LED Pin 1 low
OK_LED Pin 0 low

' ----- Shared (HUB) Variables (Byte, Word, Long) ----------------------
Cmd hub long = 0 'for command handler

' ----- User Data (DATA, WDATA, LDATA, FILE) ---------------------------

' ----- TASK Definitions -----------------------------------------------
SPI_Task TASK
' ----- Local Variables (LONG only) ------------------------------------
SPI_Cog var long

' ----- SUB and FUNC Definitions ---------------------------------------

' ================================================== ====================

PROGRAM Start

Start:
cogstart SPI_Task, SPI_Cog
if SPI_Cog = 8 then
error = 1
endif

Main:



'###### The End ################################################## ######
tmp1 = _FREQ /10 'the loop of life ....
tmp2 = cnt + tmp1
If error <> 0 then 'finish with error
do
toggle ERR_LED
waitcnt tmp2, tmp1
loop
else 'finish ok
do
toggle OK_LED
waitcnt tmp2, tmp1
loop
endif
'################################################# ####################
END

' ----- SUB and FUNC Code ----------------------------------------------

' ----- TASK Code ------------------------------------------------------

TASK SPI_Task 'handles SPI commands for DogM163 and uM-FPU
' ~~~~~ External Libs ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LOAD "C:\work\propeller\propbasic\library\Std.Lib"

' ~~~~~ Conditional Compilation Symbols ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
' ~~~~~ Constants ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~
' ~~~~~ IO Pins ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
TASKLED pin 7 low

' ~~~~~ Shared (HUB) Variables ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
' ~~~~~ User Data (DATA, WDATA, LDATA, FILE) ~~~~~~~~~~~~~~~~~~~~~~~~~~~
' ~~~~~ Local Variables (LONG only) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
' ~~~~~ SUB and FUNC Definitions ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
' ~~~~~ Task Code ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~
tmp1 = _FREQ /5 'slow blink forever
tmp2 = cnt + tmp1
do
toggle TASKLED
waitcnt tmp2, tmp1
loop

' ~~~~~ Task SUBs and FUNCs Code ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

ENDTASK
' ----------------------------------------------------------------------
PropBasic compiles OK, Spin doesn't:

---------- HomeSpun To RAM ----------
Homespun Spin Compiler 0.31d
parsing C:\Work\Propeller\PropBasic\Programs\Test_SPI_Task _LIB.spin
parsing C:\Work\Propeller\PropBasic\Programs\SPI_Task.spin
compiling Test_SPI_Task_LIB.spin
Error: C:\Work\Propeller\PropBasic\Programs\Test_SPI_Task _LIB.spin (119, 46): Unknown symbol VP_Watch
SPI_Task_COG:=SPI_Task.Init(@__DataStart, @VP_Watch)
^
Is this a bug?
Kind regards, Friedrich

[Bean]

Fried,
Yes that is a bug.
Here is a corrected version of the compiler (version 1.25).

Bean

[FriedV]

Thanks very much Bean,
could you please also have a look at PropBasic & Libraries.
I don't know if I can build programs this way, it is a bit "C"-style.
Fried

[Bean]

Fried,
I never intended LOAD to be nested. It's not going to work. It will probably stop after 1 level and never return to continue compiling the main program.

Bean

[skynugget]

hey bean, i think this update caused some problems for me. code is attached, you might recognize it from the viewport thread.
thank you sir!

edit: looks like i get the same error with v1.24 as well...last version i have that worked is 1.19, but i havent tried anything in between.

error:

---------- Capture Output ----------
> "C:\NEWPropBasic\Propellent.exe" /EEPROM "C:\Documents and Settings\stu\Desktop\wxStation\wxRX.spin"
EVT:501-Compiling: XBEE
ERR:101-Error compiling file: C:\Documents and Settings\stu\Desktop\wxStation\Xbee.spin
(Line/Char/Count: 112/41/16) Undefined symbol.
mov __temp1,CalendarMATH_COG ' COGSTART CalendarMATH ' start calculating!

> Terminated with exit code 0.

[Bean]

I'll check it out.

Bean

[Bean]

I see the problem.

A task cannot start another task. The addresses of the tasks are held in the main program's COG RAM, so it is not readable from other tasks.
I could store it in HUB ram, but that will take some work to shuffle everything around.

I'll put it on the list of things to fix.

Bean

[skynugget]

thanks again bean! take you time, honestly that was kind of a sloppy work around, i should rethink it. I have this weather box on my desk running all the time, so its an easy thing to test revisions on.