On Thu, Jul 14, 2022 at 8:40 AM Philipp Klaus Krause wrote:
>
> Am 14.07.22 um 13:24 schrieb Ralph Doncaster:
> > It's used in a couple spots in ch554_sdcc
> > https://github.com/Blinkinlabs/ch554_sdcc
> > I've used it in a couple places in CMSIS_DAP
> >
It's used in a couple spots in ch554_sdcc
https://github.com/Blinkinlabs/ch554_sdcc
I've used it in a couple places in CMSIS_DAP
https://github.com/nerdralph/ch554_sdcc/tree/master/examples/CMSIS_DAP
It's a lot easier to use than gcc-style inline asm. The gcc inline
asm rules with out: in: clobb
ddr >= 0x90 && pinaddr < 0x98)
P1_MOD_OC &= ~(1 << (pinaddr - 0x90));
}
On Sat, Mar 6, 2021 at 1:12 PM Maarten Brock wrote:
>
> Ralph Doncaster schreef op 2021-02-18 16:33:
> > If I have an sbit defined as follows:
> > __sbit __at (0x90) LED;
> >
If I have an sbit defined as follows:
__sbit __at (0x90) LED;
How can I get the address? When I try &LED, I get an error:
error 35: '&' illegal operand, address of bit variable
I need the address for a function that will configure the GPIO to push-pull
mode. I can hack it with some inline assem
After a more thorough reading of the docs, supposedly the linker doesn't
respect the .even symbol. I'll do some more experiments using multiple
object files.
On Fri, Feb 12, 2021 at 4:34 PM Ralph Doncaster
wrote:
> The .even directive worked when I tried it. Was there a bug repor
The .even directive worked when I tried it. Was there a bug report
regarding the .even directive with as8051?
On Fri, Feb 12, 2021, 14:44 Philipp Klaus Krause wrote:
> Am 12.02.21 um 17:56 schrieb Ralph Doncaster:
> > I'm using sdcc with a mcs51 target for which some ins
I'm using sdcc with a mcs51 target for which some instructions take longer
when they are not word aligned. For timing-sensitive code, I can write it
in asm and use the .even or .bndry directives. I couldn't find anything in
the SDCC manual to restrict the alignment of a function or block of code.
I found the code generators for libfirm/cparser a lot easier to follow than
gcc.
On Thu, Nov 12, 2020, 08:07 Philipp Klaus Krause wrote:
> Am 11.11.20 um 23:50 schrieb Bill Gaylord:
> > Yes. I have no special purpose registers that you can directly access.
> > The stack top register you have to
The following program allocates code space for the string, even though it's
only used at compile time by sizeof().
int main()
{
return sizeof("hello");
}
Here's the asm:
; ../strsiz.c:4: return sizeof("hello");
mov dptr,#0x0006
; ../strsiz.c:5: }
ret
.area CSEG(CODE)
.
I'd like to see it, or even just int24 as avr-gcc supports. Doing 24-bit
math is faster and takes fewer instructions than int32.
On Mon, Oct 12, 2020, 12:39 Philipp Klaus Krause wrote:
> I wonder how useful arbitrary-width integers would be for SDCC users.
>
> _ExtInt(N) would be an N-bit integ
For easier automation of sdcc installation for CI, could a snapshot-latest
link be added for each target. i.e.
sdcc-snapshot-amd64-unknown-linux2.5-latest.tar.bz2 ->
sdcc-snapshot-amd64-unknown-linux2.5-20201007-11891.tar.bz2
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According to a few examples I found, and the SDCC manual section 1.5, page
10, SDCC is supposed to recognize the type "bit". However I get a syntax
error when I try to declare a bit variable. I've tried SDCC 380, 400, &
403.
If I change the declaration to "__bit", it is recognized properly.
Is th
I have been trying to change the default stack location for mcs51, with no
luck. The .mem file shows no change to where the stack starts at when I
use the --stack-loc option.
I tried upgrading from 400 to 403, and now I get:
at 1: warning 201: deprecated compiler option '--stack-loc'
How can I se
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