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/** A bad z80 peephole optimizer rule created invalid asm
*/
// Based on code sample under GPL 2.0 or later
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <testfwk.h>
#pragma disable_warning 85
void vdu_sprite_position_set16( uint8_t id, uint8_t tile, uint8_t x, uint8_t y, uint8_t colour ) {}
///< Show patch - set tiles
uint8_t vdu_patch_crop_impl( uint8_t id, int8_t col, int8_t row,
int8_t width, int8_t offset, const uint8_t *counts, const uint8_t *colours,
int8_t cols, int8_t rows, uint8_t tile_offset, bool zoom ) {
int16_t px = col;
int16_t py = rows;
do {
uint8_t x = cols;
do {
uint8_t count = 1;
do {
vdu_sprite_position_set16( id++, tile_offset, px, py, *colours++ ); // The bad asm happened in code for passing parameters here.
} while ( --count );
px++;
counts++;
} while( --x );
} while ( --rows );
return 0;
}
void
testBug(void)
{
uint8_t c = 0;
vdu_patch_crop_impl(0, 0, 0, 0, 0, &c, &c, 1, 1, 0, 0);
}
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