mirror of
https://github.com/cc65/cc65.git
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159 lines
2.3 KiB
C
159 lines
2.3 KiB
C
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/*
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!!DESCRIPTION!! Shift bytes left and right by a variable.
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!!ORIGIN!! SDCC regression tests
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!!LICENCE!! GPL, read COPYING.GPL
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*/
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#include <stdio.h>
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#include <limits.h>
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unsigned char success=0;
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unsigned char failures=0;
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unsigned char dummy=0;
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#ifdef SUPPORT_BIT_TYPES
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bit bit0 = 0;
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#endif
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#ifdef SIZEOF_INT_16BIT
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#if defined(__LINUX__) || defined(LINUX)
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signed short aint0 = 0;
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signed short aint1 = 0;
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#else
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signed int aint0 = 0;
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signed int aint1 = 0;
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#endif
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#else
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signed int aint0 = 0;
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signed int aint1 = 0;
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#endif
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signed char achar0 = 0;
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signed char achar1 = 0;
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signed char achar2 = 0;
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signed char achar3 = 0;
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void done()
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{
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dummy++;
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}
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void shift_right_var(void)
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{
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achar0 >>= achar1;
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}
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void shift_left_var(void)
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{
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achar0 <<= achar1;
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}
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void shift_int_left_var(void)
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{
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aint0 <<= achar1;
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}
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void shift_int_right_var(void)
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{
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aint0 >>= achar1;
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}
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void shift_int_right_var2(void)
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{
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aint0 = aint1 >> achar1;
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}
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void shift_int_left_var2(void)
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{
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aint0 = aint1 << achar1;
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}
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int
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main (void)
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{
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char i;
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achar0 = 1;
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achar1 = 1;
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shift_left_var();
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if(achar0 !=2)
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failures++;
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printf("failures: %d\n",failures);
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achar0 = 1;
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achar1 = 1;
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achar2 = 1;
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for(i=0; i<7; i++) {
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shift_left_var();
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achar2 <<= 1;
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if(achar2 != achar0)
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failures++;
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}
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printf("failures: %d\n",failures);
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achar1 = 4;
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achar0 = 0xf0;
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shift_right_var();
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if(((unsigned char)achar0) != 0xff)
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failures++;
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printf("failures: %d\n",failures);
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aint0 = 1;
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aint1 = 1;
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achar1 = 1;
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for(i=0; i<15; i++) {
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shift_int_left_var();
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aint1 <<= 1;
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if(aint0 != aint1)
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failures++;
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}
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printf("failures: %d\n",failures);
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aint0 = 0x4000;
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aint1 = 0x4000;
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for(i=0; i<15; i++) {
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shift_int_right_var();
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aint1 >>= 1;
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if(aint0 != aint1)
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failures++;
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}
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printf("failures: %d\n",failures);
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aint0 = -0x4000;
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aint1 = -0x4000;
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for(i=0; i<15; i++) {
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shift_int_right_var();
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aint1 >>= 1;
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if(aint0 != aint1)
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failures++;
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}
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printf("failures: %d\n",failures);
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aint1 = 0xf000;
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achar1 = 10;
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shift_int_right_var2();
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if(((unsigned short)aint0) != 0xfffc)
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failures++;
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printf("failures: %d\n",failures);
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aint1 = aint0;
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shift_int_left_var2();
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if(((unsigned short)aint0) != 0xf000)
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failures++;
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success=failures;
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done();
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printf("failures: %d\n",failures);
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return failures;
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}
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