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/**
* 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
*/
/*
© [2025] Microchip Technology Inc. and its subsidiaries.
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
applicable to your use of 3rd party software (including open source
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
MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE
FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP?S
TOTAL LIABILITY ON ALL CLAIMS RELATED TO THE SOFTWARE WILL NOT
EXCEED AMOUNT OF FEES, IF ANY, YOU PAID DIRECTLY TO MICROCHIP FOR
THIS SOFTWARE.
*/
#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()
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