On 13 Nov 2013, at 01:03, Philipp Klaus Krause <p...@spth.de> wrote:
> Am 12.11.2013 23:29, schrieb Christophe VG:
>> Hello,
>>
>> while getting sdcc up and running for a new project, I stumbled
>> upon the following.
>>
>> $ cat minimal.c typedef unsigned long long QWORD; // 64-bit
>> unsigned typedef signed long long LONGLONG; // 64-bit signed
>>
>> void main(void) { }
>>
>> $ sdcc minimal.c minimal.c:1: error 206: invalid combination of
>> short / long minimal.c:2: error 206: invalid combination of short /
>> long
>>
>> $ sdcc --version SDCC :
>> mcs51/gbz80/z80/z180/r2k/r3ka/ds390/pic16/pic14/TININative/ds400/hc08/s08
>> 3.3.0 #8604 (Nov 12 2013) (Mac OS X x86_64)
>>
>> Although I on the homepage I do read that sdcc’s features include:
>> "basic (no integer constants) support for long long (64 bit, 8
>> bytes) data types for the z80, z180, r2k, r3ka, gbz80, hc08 and s08
>> targets.”
>>
>> Sorry, if I’m not seeing the elephant in the room here :-) Thanks
>> for helping out in advance, regards, Christophe VG
>
> sdcc minimal.c
>
> will compile minimal.c interpreted as source code written in the C89
> dialect sdcc uses by default for the mcs51 target.
>
> long long was introduced in C99, and is thus not allowed in C89 (and
> the C89 dialect sdcc uses by default). AFAIK the mcs51 target does not
> support long long. You need to compile using a C standard that has
> long long and for a target that supports it, e.g.
>
> sdcc --std-c99 -mz80 minimal.c
>
> Philipp
>
> P.S.: Even though not mentioned on the homepage, the tlcs90 and stm8
> targets support long long, too.
Philipp,
first of all thank you very much for your swift and very clear reply.
In the mean-time I had already downgraded my sdcc installation to 2.9.0 - I’m
working on Mac OS X and use MacPorts to keep my system updated, 2.9.0 is the
only alternative. To my surprise, this works without a hiccup:
$ sdcc --version
SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.9.0
#5416 (Nov 12 2013) (Mac OS X ppc)
$ sdcc minimal.c
$ ls minimal.*
minimal.asm minimal.ihx minimal.lst minimal.mem minimal.rst
minimal.c minimal.lnk minimal.map minimal.rel minimal.sym
Should I now deduce that sdcc 2.9.0 follows the C99 standard ? And that the
default target is one of the targets with long long support ?
Thanks again for getting me up to speed with this new environment,
regards,
Christophe VG
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