Don't know how to ... ;-)

claude caselles

Prodigy 210 points

Hello everyone,

I'm using CCS V6.1 to code some piece of assembly progs.

And I don't know how to achieve the following task:

( ... some code ...)

.asg 0,udict ; a variable to store the next aligned 512 segment boundarie

highMem: ; a label

; here, I would to code something like:
;
; udict = 0x0200 - highMem
; udict = 0x01FF AND udict
; udict = udict + highMem ; finally, the expected result

using only assembler directives.

I can't do that :(,

all I tried did not work.

Any ideas ?

Claude

over 9 years ago

0 George Mock over 9 years ago

TI__Guru**** 249420 points

You need to look at the Assembly Language Tools manual for the processor family you use. They are all available here. I'm pretty sure some combination of the .asg and .eval directives will solve the problem.

Thanks and regards,

-George

0 claude caselles over 9 years ago in reply to George Mock

Prodigy 210 points

Hi George,

I wonder if I do not know this manual by heart ... ;-)

My opinion at this step is this is not possible, and that because highmem label is a relocatable object that eval cannot handle.

I already tried many & many possibilities.

Claude

0 George Mock over 9 years ago

TI__Guru**** 249420 points

Unfortunately, the assembler does not have a way to encode expressions such as ...

claude caselles said:
; udict = 0x0200 - highMem
; udict = 0x01FF AND udict
; udict = udict + highMem

I apologize for not noticing this earlier.

Thanks and regards,

-George

0 claude caselles over 9 years ago in reply to George Mock

Prodigy 210 points

No problem George :)

I could even code this at run time during init phase.

Claude

0 claude caselles over 9 years ago in reply to claude caselles

Prodigy 210 points

Hi,

Just a word to say there is a way to solve this (a bit specific) problem at compile time, as is:

(some code ....)

.align 512

high_mem: ; a label aligned to next 512 segment boundary

Claude

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Don't know how to ... ;-)