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cc65/test/val/rotate4.c

220 lines
2.6 KiB
C

/*
!!DESCRIPTION!! rotate bytes left and right by a constant.
!!ORIGIN!! SDCC regression tests
!!LICENCE!! GPL, read COPYING.GPL
*/
#include <stdio.h>
#include <limits.h>
#include <stdint.h>
/* #define SUPPORT_BIT_TYPES */
unsigned char success=0;
unsigned char failures=0;
unsigned char dummy=0;
#ifdef SUPPORT_BIT_TYPES
bit bit0 = 0;
#endif
uint16_t aint0 = 0;
uint16_t aint1 = 0;
unsigned char uchar0 = 0;
unsigned char uchar1 = 0;
unsigned char uchar2 = 0;
void done()
{
dummy++;
}
void check(void)
{
if(uchar0 != uchar1)
failures++;
}
void rotate_left_1(void)
{
uchar0 = (uchar0<<1) | (uchar0>>7);
check();
}
void rotate_left_2(void)
{
uchar0 = (uchar0<<2) | (uchar0>>6);
check();
}
void rotate_left_3(void)
{
uchar0 <<= 3;
if(uchar0 != uchar1)
failures++;
}
void rotate_left_4(void)
{
uchar0 <<= 4;
if(uchar0 != uchar1)
failures++;
}
void rotate_left_5(void)
{
uchar0 <<= 5;
if(uchar0 != uchar1)
failures++;
}
void rotate_left_6(void)
{
uchar0 <<= 6;
if(uchar0 != uchar1)
failures++;
}
void rotate_left_7(void)
{
uchar0 <<= 7;
if(uchar0 != uchar1)
failures++;
}
void rotate_right_1(void)
{
uchar0 = (uchar0>>1) | (uchar0<<7);
check();
}
void rotate_right_2(void)
{
uchar0 = (uchar0>>2) | (uchar0<<6);
check();
}
void rotate_right_3(void)
{
uchar0 >>= 3;
check();
}
void rotate_right_4(void)
{
uchar0 >>= 4;
check();
}
void rotate_right_5(void)
{
uchar0 >>= 5;
check();
}
void rotate_right_6(void)
{
uchar0 >>= 6;
check();
}
void rotate_right_7(void)
{
uchar0 >>= 7;
check();
}
int main(void)
{
/* call with both values zero */
rotate_left_1();
uchar0 = 1;
uchar1 = 2;
rotate_left_1();
uchar0 = 0x80;
uchar1 = 1;
rotate_left_1();
uchar1 = 2;
for(uchar2=0; uchar2<6; uchar2++) {
rotate_left_1();
uchar1 <<=1;
}
uchar0 = 1;
uchar1 = 4;
rotate_left_2();
uchar0 = 1;
uchar1 = 8;
rotate_left_3();
uchar0 = 1;
uchar1 = 0x10;
rotate_left_4();
uchar0 = 1;
uchar1 = 0x20;
rotate_left_5();
uchar0 = 1;
uchar1 = 0x40;
rotate_left_6();
uchar0 = 1;
uchar1 = 0x80;
rotate_left_7();
uchar0 = 2;
uchar1 = 1;
rotate_right_1();
uchar0 = 1;
uchar1 = 0x80;
rotate_right_1();
uchar0 = 4;
uchar1 = 1;
rotate_right_2();
uchar0 = 8;
rotate_right_3();
uchar0 = 0x10;
rotate_right_4();
uchar0 = 0x20;
rotate_right_5();
uchar0 = 0x40;
rotate_right_6();
uchar0 = 0x80;
rotate_right_7();
success=failures;
done();
printf("failures: %d\n",failures);
return failures;
}