Small Device C Compiler (SDCC) / Bugs / #1277 Don't generate ASM code

#1277 Don't generate ASM code

Status: closed-postponed

Owner: Raphael Neider

Labels: pic14 target (175)

Category:

Priority: 5

Updated: 2013-05-25

Created: 2007-01-14

Creator: Anonymous

Private: No

I don't know if it's really a bug:

The code for lines (59/60)
PORTB = g_vcval[0]; // output DEBUG
CCPR1L = g_vcval[0]; // output PWM
is not generated; the output isn't run.
When change lines 59/60 to:
PORTB = g_vcval[0]; // output DEBUG
CCPR1L = PORTB; // output PWM
the code is generated and runs fine.

version:
SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.6.0 #4309 (Jul 28 2006) (MINGW32)
Cheers
labolida@terra.com.br

Discussion

Nobody/Anonymous - 2007-01-14

source c code

midi.c

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Raphael Neider - 2007-01-14

milestone: --> 100457

status: open --> pending-out-of-date
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Raphael Neider - 2007-01-14

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Well, 2.6.0, r4309 is ancient history... The attached code compiles fine (though freq.c and wave.c are missing...) with SDCC 2.6.4, r4570.
Please update your installation and try again.

Regards,
Raphael

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labolida - 2007-01-17

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Thanks for your follow up.
The latest version in Source Forge is 2.6.0, how I can obtain the 2.6.4.?
Thanks in advance
Miguel Labolida

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labolida - 2007-01-17

status: pending-out-of-date --> open-out-of-date
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Raphael Neider - 2007-01-17

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Either use one of the snapshots from http://sdcc.sourceforge.net/snap.php#Windows (most recent one is 2.6.3, r4543 from 31-12-2006, though), or grab the sources from the subversion repository and compile them yourself. As you seem to use SDCC in Windows/MinGW, the snapshot approach is probably preferrable. That revision should be fine for the moment, as I did not change the PIC14/PIC16 ports much this year so far.

Regards,
Raphael

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Raphael Neider - 2007-01-17

status: open-out-of-date --> closed-out-of-date
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Raphael Neider - 2007-01-17

assigned_to: nobody --> tecodev

milestone: 100457 --> known_bugs

status: closed-out-of-date --> closed-postponed
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Raphael Neider - 2007-01-17

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Wrong diagnosis: The bug lies in the (known) faulty pcode optimization still enabled by default...
Until this is fixed, use `sdcc -mpic14 -p[whatever] --no-pcode-opt [...]' to prevent this overly aggressive optimization from breaking your code.

Regards,
Raphael

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