On 03-05-12 13:27, Thomas Schatzl wrote:
...
function reverse(b : byte) : byte; assembler; nostackframe;
asm
rbit r0, r0
// rbit reverses the whole word, so now you have
// your value in bits 31-24... so shift right by that amount
// should fix this up (bits 23-0 contain junk, we shif
On Thu, May 3, 2012 at 1:01 PM, Sven Barth wrote:
> On 03.05.2012 15:40, Marcos Douglas wrote:
>>
>> On Thu, May 3, 2012 at 10:01 AM, LacaK wrote:
>>>
>>> Marcos Douglas wrote / napísal(a):
>>>
>>> On Thu, May 3, 2012 at 2:52 AM, LacaK wrote:
>>>
>>>
>>> I saw the TBufDataSet.ApplyUpdates and i
On 03.05.2012 15:40, Marcos Douglas wrote:
On Thu, May 3, 2012 at 10:01 AM, LacaK wrote:
Marcos Douglas wrote / napísal(a):
On Thu, May 3, 2012 at 2:52 AM, LacaK wrote:
I saw the TBufDataSet.ApplyUpdates and it calls ApplyRecUpdate.
The ApplyRecUpdate just raises an exception...
Yes it
On 03.05.2012 10:50, David Butler wrote:
If you want to go assembly:
function ReverseBits(const Value: LongWord): LongWord; register; assembler;
asm
BSWAP EAX
MOV EDX, EAX
AND EAX, 0h
SHR EAX, 1
AND EDX, 0h
SHL EDX,
On Thu, May 3, 2012 at 10:01 AM, LacaK wrote:
> Marcos Douglas wrote / napísal(a):
>
> On Thu, May 3, 2012 at 2:52 AM, LacaK wrote:
>
>
> I saw the TBufDataSet.ApplyUpdates and it calls ApplyRecUpdate.
> The ApplyRecUpdate just raises an exception...
>
>
>
> Yes it is virtual method, which can b
Marcos Douglas wrote / napísal(a):
On Thu, May 3, 2012 at 2:52 AM, LacaK wrote:
I saw the TBufDataSet.ApplyUpdates and it calls ApplyRecUpdate.
The ApplyRecUpdate just raises an exception...
Yes it is virtual method, which can be overriden by descendants
There is some imple
On Thu, May 3, 2012 at 2:52 AM, LacaK wrote:
>
>>
>> I saw the TBufDataSet.ApplyUpdates and it calls ApplyRecUpdate.
>> The ApplyRecUpdate just raises an exception...
>>
>
> Yes it is virtual method, which can be overriden by descendants
>
>
>> There is some implementation, in some place, to work
Hi,
On Thu, 2012-05-03 at 12:54 +0200, Ludo Brands wrote:
> > Thanks all for your replies.
> > I already found the RBIT-instruction. I also found out I need
> > to study
> > the arm assembly language ;-)
> >
> > But how do I get my variable ? Is that in some register ? Is
> > there any
> > do
> Thanks all for your replies.
> I already found the RBIT-instruction. I also found out I need
> to study
> the arm assembly language ;-)
>
> But how do I get my variable ? Is that in some register ? Is
> there any
> documentation about such things ? Then I can use inline assembly.
>
ARM has
In our previous episode, dhkblas...@zeelandnet.nl said:
>
> c2pas32 often gives acceptable results.
Definitely the best results so far. If it is enough, I don't know yet, but
then it will at least be good enough to speed up fragments. Thanks!
___
fpc-p
c2pas32 often gives acceptable results.
On 3 mei '12,
mar...@stack.nl wrote:
> Hello,
>
> I'm in the process of converting
an old MSVC6 application to FPC/Delphi,
> so I'm thinking about using a
c to pascal converter.
>
> The code is older 6-10kloc, and is plain C
in a MFC C++ framework.
On 03-05-12 10:45, Ludo Brands wrote:
You might also look into the RBIT instruction which does this in one cpu
cycle. See
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0489c/Cihjgdi
d.html and applied to the STM32 USART
http://forum.micromouseonline.com/viewtopic.php?f=7&t=460
If you want to go assembly:
function ReverseBits(const Value: LongWord): LongWord; register; assembler;
asm
BSWAP EAX
MOV EDX, EAX
AND EAX, 0h
SHR EAX, 1
AND EDX, 0h
SHL EDX, 1
OR EAX, EDX
MOV EDX, EAX
> Hi,
>
> I'm porting a driver, originally written in C, for an LCD to be used
> with an embedded arm-processor (STM32).
> The original driver uses SPI, my driver will use a USART in
> synchronous
> mode because the STM32 has no SPI for 9-bit. Unfortunately, the
> bit-order is reversed between
Hello,
I'm in the process of converting an old MSVC6 application to FPC/Delphi,
so I'm thinking about using a c to pascal converter.
The code is older 6-10kloc, and is plain C in a MFC C++ framework. It does
nothing but processing samples (array handling and transformation), and
drawing a graph o
Hi,
On Thu, 2012-05-03 at 07:55 +, Mark Morgan Lloyd wrote:
> Koenraad Lelong wrote:
> > Hi,
> >
> > I'm porting a driver, originally written in C, for an LCD to be used
> > with an embedded arm-processor (STM32).
> > The original driver uses SPI, my driver will use a USART in synchronous
>
Koenraad Lelong wrote:
Hi,
I'm porting a driver, originally written in C, for an LCD to be used
with an embedded arm-processor (STM32).
The original driver uses SPI, my driver will use a USART in synchronous
mode because the STM32 has no SPI for 9-bit. Unfortunately, the
bit-order is reversed
Dne 3.5.2012 9:11 "Koenraad Lelong"
napsal(a):
>
> Does anyone knows an efficient way to reverse bit-order of a byte for the
arm-processor ?
Lookup from a 256 byte precomputed table?
Or I misunderstood the task.
-jan
___
fpc-pascal maillist - fpc-pa
Hi,
I'm porting a driver, originally written in C, for an LCD to be used
with an embedded arm-processor (STM32).
The original driver uses SPI, my driver will use a USART in synchronous
mode because the STM32 has no SPI for 9-bit. Unfortunately, the
bit-order is reversed between SPI and USART t
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