next_raster_at.c

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/*****************************************************************************
 * ugBASIC - an isomorphic BASIC language compiler for retrocomputers        *
 *****************************************************************************
 * Copyright 2021-2026 Marco Spedaletti (asimov@mclink.it)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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/****************************************************************************
 * INCLUDE SECTION 
 ****************************************************************************/
 
#include "../../ugbc.h"
 
/****************************************************************************
 * CODE SECTION 
 ****************************************************************************/

/* <usermanual>
@keyword NEXT RASTER AT
 
@english
 
The ''NEXT RASTER AT'' instruction will resume execution of the main program from
where it had stopped, before serving the interrupt for the raster, and will set
the next raster line where the main program will be interrupted.
 
@italian
 
L'istruzione ''NEXT RASTER AT'' riprenderà l'esecuzione del programma principale 
dal punto in cui si era interrotta, prima di servire l'interruzione per il raster, 
e imposterà la successiva riga raster in cui il programma principale verrà 
interrotto.
 
@syntax NEXT RASTER AT line WITH label
@syntax NEXT RASTER label AT line
 
@example NEXT RASTER AT #&H42 WITH myRasterRoutine
 
@target c128
 
@seeAlso NEXT RASTER
@seeAlso RASTER AT
 
</usermanual> */
void next_raster_at_with( Environment * _environment, int _position, char * _label ) {
 
    char positionlo[MAX_TEMPORARY_STORAGE]; sprintf( positionlo, "#$%2.2x", (unsigned char) ( _position & 0xff )  );
    char positionhi[MAX_TEMPORARY_STORAGE]; sprintf( positionhi, "#$%2.2x", (unsigned char) ( ( ( _position >> 8 ) & 0x01 ) << 8 ) );
 
    vic2_next_raster_at( _environment, _label, positionlo, positionhi );
 
}

void next_raster_at_with_var( Environment * _environment, char * _position, char * _label ) {
 
    
 
    MAKE_LABEL
 
    Variable * var = variable_retrieve( _environment, _position );
 
    char positionlo[MAX_TEMPORARY_STORAGE]; sprintf( positionlo, "%s", var->realName );
    char positionhi[MAX_TEMPORARY_STORAGE]; sprintf( positionhi, "%s", address_displacement(_environment, var->realName, "1") );
 
    vic2_next_raster_at( _environment, _label, positionlo, positionhi );
 
}