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/*
bug3410878.c
Dead code elimination fails here, resulting in unconnected CFG and live-ranges.
Those, in turn did mess up register allocation, which, then resulted in code-generation
failing. Fixed by workarounds in register allcoation.
*/
#include <testfwk.h>
#pragma std_sdcc99
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
struct cv_controller_state
{
uint8_t keypad;
uint8_t joystick;
int16_t spinner;
};
#define CV_LEFT 0x08
#define CV_DOWN 0x04
#define CV_RIGHT 0x02
#define CV_UP 0x01
typedef uint16_t cv_vmemp;
#pragma disable_warning 85
extern void cvu_memtovmemcpy(cv_vmemp dest, const void * src, size_t n)
{
}
extern void cvu_vmemtomemcpy(void *dest, cv_vmemp src, size_t n)
{
}
uint8_t *get_tile_data(uint16_t x, uint16_t y)
{
}
#define IMAGE ((const cv_vmemp)0x1c00)
volatile bool step;
volatile struct cv_controller_state cs;
#ifndef __SDCC_pdk14 // Lack of memory
void mainx(void)
{
uint16_t x, y;
uint16_t mapx, mapy;
unsigned char i, j, k;
uint8_t *b;
x = 16;
y = 12;
mapx = 0;
mapy = 0;
for(;;)
{
uint8_t buffer[32];
while(!step);
step = false;
if(cs.joystick & CV_RIGHT)
x++;
if(cs.joystick & CV_DOWN)
y++;
if(cs.joystick & CV_LEFT && x > 8)
x--;
if(cs.joystick & CV_UP && y > 8)
y--;
// Scroll map
if(x > mapx + 24)
{
for(i = 0; i < 24; i++)
{
cvu_vmemtomemcpy(buffer, IMAGE + i * 32 + 8, 24);
cvu_memtovmemcpy(IMAGE + i * 32, buffer, 24);
}
mapx += 8;
b = get_tile_data(mapx + 24, mapy);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + 24, b + i * 8, 8);
}
b = get_tile_data(mapx + 24, mapy + 8);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + 32 * 8 + 24, b + i * 8, 8);
}
b = get_tile_data(mapx + 24, mapy + 16);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + 32 * 16 + 24, b + i * 8, 8);
}
}
if(x < mapx + 8)
{
for(i = 0; i < 24; i++)
{
cvu_vmemtomemcpy(buffer, IMAGE + i * 32, 24);
cvu_memtovmemcpy(IMAGE + i * 32 + 8, buffer, 24);
}
mapx -= 8;
b = get_tile_data(mapx, mapy);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32, b + i * 8, 8);
}
b = get_tile_data(mapx, mapy + 8);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + 32 * 8, b + i * 8, 8);
}
b = get_tile_data(mapx, mapy + 16);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + 32 * 16, b + i * 8, 8);
}
}
if(y > mapy + 16)
{
for(i = 0; i < 16; i++)
{
cvu_vmemtomemcpy(buffer, IMAGE + i * 32 + 8 * 32, 32);
cvu_memtovmemcpy(IMAGE + i * 32, buffer, 32);
}
mapy += 8;
for(j = 0; j < 32; j += 8)
{
b = get_tile_data(mapx + j, mapy + 16);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + 16 * 32 + j, b + i * 8, 8);
}
}
}
if(y < mapy + 8)
{
for(i = 23; i >= 8; i--)
{
cvu_vmemtomemcpy(buffer, IMAGE + i * 32 - 8 * 32, 32);
cvu_memtovmemcpy(IMAGE + i * 32, buffer, 32);
}
mapy -= 8;
for(j = 0; j < 32; j += 8)
{
b = get_tile_data(mapx + j, mapy);
for(i = 0; i < 8; i++)
{
cvu_memtovmemcpy(IMAGE + i * 32 + j, b + i * 8, 8);
}
}
}
}
}
#endif
void testBug(void)
{
}
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