/**
 * protected_io Source Code File
 * 
 * @file protected_io.S
 * 
 * @ingroup config_bitsdriver 
 * 
 * @brief This file contains the generated protected_io source code file for the CONFIGURATION BITS.
 *
 * @version Driver Version 1.0.0
*/
/*
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    Subject to your compliance with these terms, you may use Microchip 
    software and any derivatives exclusively with Microchip products. 
    You are responsible for complying with 3rd party license terms  
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    software) that may accompany Microchip software. SOFTWARE IS ?AS IS.? 
    NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS 
    SOFTWARE, INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT,  
    MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 
    WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, 
    INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY 
    KIND WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF 
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    TOTAL LIABILITY ON ALL CLAIMS RELATED TO THE SOFTWARE WILL NOT 
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*/


#include "../utils/assembler.h"

/*
	 * GNU and IAR use different calling conventions. Since this is
	 * a very small and simple function to begin with, it's easier
	 * to implement it twice than to deal with the differences
	 * within a single implementation.
	 */

	PUBLIC_FUNCTION(protected_write_io)

#if defined(__GNUC__)
  
#ifdef RAMPZ
	out     _SFR_IO_ADDR(RAMPZ), r1         // Clear bits 23:16 of Z
#endif
	movw    r30, r24                // Load addr into Z
	out     CCP, r22                // Start CCP handshake
	st      Z, r20                  // Write value to I/O register
	ret                             // Return to caller

#elif defined(__IAR_SYSTEMS_ASM__)

# if !defined(CONFIG_MEMORY_MODEL_TINY) && !defined(CONFIG_MEMORY_MODEL_SMALL) \
                && !defined(CONFIG_MEMORY_MODEL_LARGE)
#  define CONFIG_MEMORY_MODEL_SMALL
# endif
# if defined(CONFIG_MEMORY_MODEL_LARGE)
	ldi     r20, 0
	out     RAMPZ, r20              // Reset bits 23:16 of Z
	movw    r30, r16                // Load addr into Z
# elif defined(CONFIG_MEMORY_MODEL_TINY)
	ldi     r31, 0                  // Reset bits 8:15 of Z
	mov     r30, r16                // Load addr into Z
# else
	movw    r30, r16                // Load addr into Z
# endif
# if defined(CONFIG_MEMORY_MODEL_TINY)
	out     CCP, r17                // Start CCP handshake
	st      Z, r18                  // Write value to I/O register
# elif defined(CONFIG_MEMORY_MODEL_SMALL)
	out     CCP, r18                // Start CCP handshake
	st      Z, r19                  // Write value to I/O register
# elif defined(CONFIG_MEMORY_MODEL_LARGE)
	out     CCP, r19                // Start CCP handshake
	st      Z, r20                  // Write value to I/O register
# else
#  error Unknown memory model in use, no idea how registers should be accessed
# endif
        ret
#else
# error Unknown assembler
#endif

	END_FUNC(protected_write_io)
	END_FILE()

