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jirsoft

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Joined: 18/09/2020
Location: Czech Republic
Posts: 533

Posted: 06:34pm 09 Dec 2020

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Hi Peter,
when I'm trying to get CSUBs working in 5.06 FW, I'm crashing the CMM2 all the time. Do I need to change somehow the compilation of the CSUB? I'm not using ARMCFunctions.h and I have still arm-gcc-link.ld the same version (2826 byte long).

From this simple code (tried to fix ScrollingText demo):

void FixBytes(long long *scr, long long int *x, long long int *y, long long int *w, long long int *h, long long int *nc)
//'FixBytes screenAdr, X, Y, W, H, newColor
{
char *adr;
adr = (char *)scr;
for (int i = 0; i < 80000; i++)
*adr++ = i & 0xFF;

}

Called from MMBasic with first parameter:

dim integer page1Adr = MM.INFO(PAGE ADDRESS 1)

It crashes the CMM2. The CSUB is
:

CSUB FixBytes
'FixBytes screenAdr, X, Y, W, H, newColor

00000000
'FixBytes
4A042300 F8003801 33013F01 D1FA4293 BF004770 00013880
END CSUB

Jiri
Napoleon Commander and SimplEd for CMM2 (GitHub), CMM2.fun

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10590

Posted: 07:43pm 09 Dec 2020

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The issue is the way you are passing scr

Try

void FixBytes(unsigned int *scr)
//'FixBytes screenAdr, X, Y, W, H, newColor
{
char *adr;
adr = (char *)scr[0];
for (int i = 0; i < 80000; i++)
*adr++ = i & 0xFF;

}

Also start CSUB development with optimisation off and only increase it when everything is working. Then you can see if it breaks anything
Edited 2020-12-10 05:58 by matherp

RCMAN
Newbie

Joined: 31/10/2020
Location: Canada
Posts: 29

Posted: 01:43pm 10 Dec 2020

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matherp said The issue is the way you are passing scr

Try

void FixBytes(unsigned int *scr)
//'FixBytes screenAdr, X, Y, W, H, newColor
{
char *adr;
adr = (char *)scr[0];
for (int i = 0; i < 80000; i++)
*adr++ = i & 0xFF;

}

Also start CSUB development with optimisation off and only increase it when everything is working. Then you can see if it breaks anything

Where can I read about using Csub in my code? And is this documentation current?

Thanks
RC

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10590

Posted: 02:15pm 10 Dec 2020

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Where can I read about using Csub in my code? And is this documentation current?

https://www.thebackshed.com/forum/ViewTopic.php?FID=16&TID=12289

Is as good as you are going to get

RCMAN
Newbie

Joined: 31/10/2020
Location: Canada
Posts: 29

Posted: 03:23pm 10 Dec 2020

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matherp said

Where can I read about using Csub in my code? And is this documentation current?

https://www.thebackshed.com/forum/ViewTopic.php?FID=16&TID=12289

Is as good as you are going to get

Thanks

jirsoft

Guru

Joined: 18/09/2020
Location: Czech Republic
Posts: 533

Posted: 06:34pm 10 Dec 2020

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matherp said The issue is the way you are passing scr

Try

void FixBytes(unsigned int *scr)
//'FixBytes screenAdr, X, Y, W, H, newColor
{
char *adr;
adr = (char *)scr[0];
for (int i = 0; i < 80000; i++)
*adr++ = i & 0xFF;

}

Also start CSUB development with optimisation off and only increase it when everything is working. Then you can see if it breaks anything

Thanks,
I will try it.

Jiri
Napoleon Commander and SimplEd for CMM2 (GitHub), CMM2.fun

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