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cc65/test/val/rotate6.c

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2014-09-24 14:45:10 +00:00
/*
!!DESCRIPTION!! Shift bytes left and right by a variable.
!!ORIGIN!! SDCC regression tests
!!LICENCE!! GPL, read COPYING.GPL
*/
#include <stdio.h>
#include <limits.h>
#include <stdint.h>
/* #define SUPPORT_BIT_TYPES */
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unsigned char success=0;
unsigned char failures=0;
unsigned char dummy=0;
#ifdef SUPPORT_BIT_TYPES
bit bit0 = 0;
#endif
int16_t aint0 = 0;
int16_t aint1 = 0;
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signed char achar0 = 0;
signed char achar1 = 0;
signed char achar2 = 0;
signed char achar3 = 0;
void done()
{
dummy++;
}
void shift_right_var(void)
{
achar0 >>= achar1;
}
void shift_left_var(void)
{
achar0 <<= achar1;
}
void shift_int_left_var(void)
{
aint0 <<= achar1;
}
void shift_int_right_var(void)
{
aint0 >>= achar1;
}
void shift_int_right_var2(void)
{
aint0 = aint1 >> achar1;
}
void shift_int_left_var2(void)
{
aint0 = aint1 << achar1;
}
int
main (void)
{
char i;
achar0 = 1;
achar1 = 1;
shift_left_var();
if(achar0 !=2)
failures++;
printf("failures: %d\n",failures);
achar0 = 1;
achar1 = 1;
achar2 = 1;
for(i=0; i<7; i++) {
shift_left_var();
achar2 <<= 1;
if(achar2 != achar0)
failures++;
}
printf("failures: %d\n",failures);
achar1 = 4;
achar0 = 0xf0;
shift_right_var();
if(((unsigned char)achar0) != 0xff)
failures++;
printf("failures: %d\n",failures);
aint0 = 1;
aint1 = 1;
achar1 = 1;
for(i=0; i<15; i++) {
shift_int_left_var();
aint1 <<= 1;
if(aint0 != aint1)
failures++;
}
printf("failures: %d\n",failures);
aint0 = 0x4000;
aint1 = 0x4000;
for(i=0; i<15; i++) {
shift_int_right_var();
aint1 >>= 1;
if(aint0 != aint1)
failures++;
}
printf("failures: %d\n",failures);
aint0 = -0x4000;
aint1 = -0x4000;
for(i=0; i<15; i++) {
shift_int_right_var();
aint1 >>= 1;
if(aint0 != aint1)
failures++;
}
printf("failures: %d\n",failures);
aint1 = 0xf000;
achar1 = 10;
shift_int_right_var2();
if(((unsigned short)aint0) != 0xfffc)
failures++;
printf("failures: %d\n",failures);
aint1 = aint0;
shift_int_left_var2();
if(((unsigned short)aint0) != 0xf000)
failures++;
success=failures;
done();
printf("failures: %d\n",failures);
return failures;
}