Re: [Sdcc-user] error in .org REL diective with inline assembly code

[Rod B. <ro...@bo...>]

Daryl,

void handshake(void)
{
    register unsigned char i;
    
    P3_7 = 1;
    while( P3_7 )
        ;
    i = 0;
    do
    {
        i++;
    } while( i != 0xff );
}

Why not use teh above 'C' code it compiles to a more afficent assembler fragment than you inline assembly and in more maintainable.


Regards,
Rod Boyce

On Wed, 23 Oct 2002 16:14:00 -0500
"Daryl Gallatin" <dga...@ma...> wrote:

> Hi, I'm trying to get a simple program to compile and I need the inline assembly code to work, but I keep getting this wierd error that doesn't make sense. I came across this user list on the internet looking up the error and saw a couple other people had similiar error on different type code but I didn't see anything that would help
> 
> The error is  ?ASxxxx-Error(o) in line 205 of hello2.asm
> (o) .org in REL area or directive/mnemonic error
> 
> and then it repeats that several times for different lines
> 
> I'm compilling with sdcc -c hello2.c
> Get same problem on NT and win98
> Thanks
> 
> Daryl
> 
> Here is the code
> 
> 
> /*This program is for the 89S8252 on iguanalabs Experiamental Board
>   Before the 8252 starts executing code handshake signals to the 2051
>   have to be completed. The inline assemble code is supposed to handle that
>   First by waiting for Port P37 to go low, then wait run delay then start the main
>   code by sending text to the serial port */
> 
> #include <8051.h>	/* special function register declarations */
> #include <stdio.h>	/* prototype declarations for I/O functions */
> 
> 
> 
> void handshake(void)
> 	{
> 	_asm
> 	SETB P3_7
> 	0001$:: JB P3_7, 0001$
> 	CLR P3_7
> 	;DELAY
> 	MOV R7,0
> 	0002$:
> 		INC R7
> 		MOV A, R7
> 		CJNE A,0xff,0002$
> 		
> 	_endasm;
> 	
> 	}
> 
> 
> /****************/
> /* main program */
> /****************/
> void main (void)
>   {	/* execution starts here after stack init */
>   SCON  = 0x50;	/* SCON: mode 1, 8-bit UART, enable rcvr */
>   TMOD |= 0x20;	/* TMOD: timer 1, mode 2, 8-bit reload */
>   TH1   = 0xf3;	/* TH1:  reload value for 2400 baud */
>   TR1   = 1;	/* TR1:  timer 1 run */
>   TI    = 1;	/* TI:   set TI to send first char of UART */
>   
>   handshake();  /* start handshake function that waits for handshake signal with the 2051 */
> 
> 
> 
>   while (1)
>  	{
>   	 printf ("Hello World\n");	/* the 'printf' function call */  	
>   	}	  	
>   }	   
> 
> 
> 
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