topic Re: BRCLR AND BRSET OPCODE BUG PROBLEM ADDING ASM LINES INTO C CODING in 8-bit Microcontrollers

BRCLR AND BRSET OPCODE BUG PROBLEM ADDING ASM LINES INTO C CODING

ganimides — Tue, 12 Sep 2006 01:37:48 GMT

Hi all !.

I`m trying to add ASM inlines into C coding using CODEWARRIOR 5.0 and just when I am going to compile it some errors that not even exist on Compiler error list appear and it`s driving me very crazyyy!!!..

Apparently this occurs when using a BRCLR AND BRSET opcodes.I was searching on the net for help and some documents explain that these kind of bugs were detected in CODEWARRIOR 4.0 al least.If I`m not mistaken these would happen because OCDEWARRIOR issues two ASM compilers separatelly and depends on what kind of statement you are using.

Please someone who can tell what am I doing wrong.

I here attached the code.

Thanks you very much.

Ganimides

Re: BRCLR AND BRSET OPCODE BUG PROBLEM ADDING ASM LINES INTO C CODING

rocco — Tue, 12 Sep 2006 04:10:39 GMT

Hi, Ganimides:

What is the error message?

In which file does the error occur?

In one of your files, I found the following two lines:

            BRCLR;   DATA_0,PORTA,DESC_PAR
            BRCLR;   DATA_1,PORTA,DESC_PAR

These will certainly cause some kind of error, as it involves opcodes with no operands. It appears the operands have been commented out, even though BRCLR requires three.

Re: BRCLR AND BRSET OPCODE BUG PROBLEM ADDING ASM LINES INTO C CODING

CrasyCat — Tue, 12 Sep 2006 17:19:11 GMT

Hello

Well just take a look at the preprocessor output for file main.c and you should figure out what is going on .

First in function lee_tarjeta remove the semi column after BRCLR

BRCLR; DATA_0,PORTA,DESC_PAR
BRCLR; DATA_1,PORTA,DESC_PAR
Then remove the semi column at the end of the defines:

#define DATA_0 0x03;
#define DATA_1 0x02;
#define PORTA PTA;

Compiler should then understand the BRCLR.

CrasyCat

Re: BRCLR AND BRSET OPCODE BUG PROBLEM ADDING ASM LINES INTO C CODING

ganimides — Tue, 12 Sep 2006 22:38:43 GMT

Dear Rocco,thank you for responding.

I put this semi colons becasue of I get tired to test it with no succesfull.

The error ocurrs when the compiler watch over the BRCLR and BRSET opcodes and it remains looping on.this place.

Please I just need if you take a look the entire code and tell me what am I doing wrong.

Best regards

Ganimides

Re: BRCLR AND BRSET OPCODE BUG PROBLEM ADDING ASM LINES INTO C CODING

rocco — Wed, 13 Sep 2006 13:10:57 GMT

Hi, Ganimides:

There is not much I can tell from just looking at the code.

What is the error message you receive?

At what lines do they occur?

Besides the operands being commented out, which would certainly cause errors, I noticed another syntax problem. In some lines, you have

        BRCLR   #DATA_0,PORTA,FC_D0_A

with a "#" before the bit number in the operand field, and in other lines you have

        BRCLR   DATA_0,PORTA,WAIT3

without a "#". I believe the correct syntax would not have a "#" in the operand field.