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/* bug-3685.c
Wrong code was generated for an addition involving an operand using exactly one byte of iy.
*/
// Based on code by "Under4Mhz" licensed under GPL 2.0 or later
#include <testfwk.h>
#pragma disable_warning 85
#include <stdint.h>
#include <stdbool.h>
typedef struct {
uint8_t page;
} VduTileData;
VduTileData vduTileData;
inline uint16_t vdu_tile_page_address( uint8_t page ) {
return page == 1 ? 0x9000 : 0x9800;
}
inline uint16_t vdu_tile_page_address_get_fast( void ) {
return vdu_tile_page_address( vduTileData.page );
}
void vdu_tiles_put( uint16_t offset, const uint8_t *pixels, const uint8_t *colours ) {
static uint16_t o;
ASSERT (offset == o);
o += 256;
}
uint16_t decompress_vdu(const uint8_t *compressed_data, uint16_t dest ) {}
///< Render image to screen
void vdu_image_put( const uint8_t **pixels, const uint8_t **colours, const uint8_t *index ) {
///< Load data
uint16_t segmentOffset = 0;
for( uint8_t segment = 0; segment < 3; segment++ ) {
vdu_tiles_put( segmentOffset, pixels[segment], colours[segment] );
segmentOffset += 256; // 256
}
// Write index table
if ( index ) {
decompress_vdu( index, vdu_tile_page_address_get_fast() );
}
}
void
testBug(void)
{
vduTileData.page = 0;
const uint8_t *const pixels[] = { 0, 0, 0 };
const uint8_t *const colours[] = { 0, 0, 0 };
const uint8_t index[] = { 0 };
vdu_image_put( pixels, colours, index );
}
extern uint16_t vdu_tile_page_address( uint8_t page );
extern uint16_t vdu_tile_page_address_get_fast( void );
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