mirror of
https://github.com/cc65/cc65.git
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273 lines
3.8 KiB
C
273 lines
3.8 KiB
C
/*
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!!DESCRIPTION!! Substraction Test
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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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#if SUPPORT_BIT_TYPES
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bit bit0 = 0;
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bit bit1 = 0;
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bit bit2 = 0;
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bit bit3 = 0;
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bit bit4 = 0;
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bit bit5 = 0;
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bit bit6 = 0;
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bit bit7 = 0;
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bit bit8 = 0;
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bit bit9 = 0;
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bit bit10 = 0;
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bit bit11 = 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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unsigned short aint0 = 0;
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unsigned short aint1 = 0;
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#else
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unsigned int aint0 = 0;
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unsigned int aint1 = 0;
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#endif
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#else
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unsigned int aint0 = 0;
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unsigned int aint1 = 0;
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#endif
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unsigned char achar0 = 0;
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unsigned char achar1 = 0;
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unsigned char achar2 = 0;
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unsigned char achar3 = 0;
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unsigned char *acharP = 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 sub_lit_from_uchar(void)
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{
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achar0 = achar0 - 5;
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if(achar0 != 0xfb)
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failures++;
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achar0 -= 10;
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if(achar0 != 0xf1)
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failures++;
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achar0 = achar0 -1; /* Should be a decrement */
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if(achar0 != 0xf0)
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failures++;
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for(achar1 = 0; achar1 < 100; achar1++)
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achar0 -= 2;
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if(achar0 != 40)
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failures++;
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}
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/* achar0 = 1
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achar1 = 100
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*/
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void sub_uchar2uchar(void)
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{
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achar1 = achar1 - achar0;
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if(achar1 != 99)
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failures++;
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for(achar2 = 0; achar2<7; achar2++)
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achar1 -= achar0;
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if(achar1 != 92)
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failures++;
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}
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/* assumes
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achar0 = 10
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achar1 = 32
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achar2, achar3 can be anything.
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*/
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void sub_uchar2uchar2(void)
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{
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achar0--;
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achar0 = achar0 - 1;
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achar0 = achar0 - 2;
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achar0 = achar0 - 3;
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if(achar0 != 3)
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failures++;
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achar1 -= achar0;
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if(achar1 != 29)
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failures++;
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achar2 = achar1 - achar0;
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if(achar2 != 26)
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failures++;
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achar3 = achar2 - achar1 - achar0;
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if(achar3 != 0xfa)
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failures++;
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}
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/* sub_bits
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all bit variables are 0 upon entry.
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*/
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#if SUPPORT_BIT_TYPES
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void sub_bits(void)
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{
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bit1 = bit0;
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bit0 = 1;
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if(bit1 != 0)
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failures++;
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bit1 = bit0-bit1; /* 1 - 0 => 1 */
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if(bit1 != 1)
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failures++;
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#if SUPPORT_BIT_ARITHMETIC
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bit2 = bit1-bit0; /* 1 - 1 => 0 */
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if(bit2)
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failures++;
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bit7 = bit4-bit5;
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bit6 = bit4+bit5;
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bit3 = bit4-bit5-bit6-bit7-bit0; /* 0-0-0-0-1 => 1 */
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if(!bit3)
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failures++;
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#endif
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}
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/* sub_bit2uchar(void) - assumes bit0 = 1, achar0 = 7 */
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void sub_bit2uchar(void)
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{
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achar0 -= bit0;
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if(achar0 != 6)
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failures++;
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if(achar0 == bit0)
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failures++;
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}
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void sub_bit2uint(void)
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{
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if(aint0 != bit11)
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failures++;
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aint0 -= bit0;
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if(aint0!=0xffff)
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failures++;
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}
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#endif
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void sub_ucharFromLit(void)
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{
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achar0 = 2 - achar0;
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if(achar0 != 2)
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{
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printf("%x != %x\n",0x02,achar0);
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failures++;
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}
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aint0 = 2 - aint0;
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if(aint0 != 2)
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{
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printf("%x != %x\n",0x02,aint0);
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failures++;
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}
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aint0--;
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if(aint0 != 1)
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{
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printf("%x != %x\n",0x01,aint0);
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failures++;
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}
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aint0 = 0x100 - aint0;
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if(aint0 != 0xff)
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{
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printf("%x != %x\n",0xff,aint0);
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failures++;
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}
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aint0 = 0xff00 - aint0;
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if(aint0 != 0xfe01)
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{
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printf("%x != %x\n",0xfe01,aint0);
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failures++;
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}
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aint0 = 0x0e01 - aint0;
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if(aint0 != 0x1000)
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{
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printf("%x != %x\n",0x1000,aint0);
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failures++;
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}
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aint0 = 0x10ff - aint0;
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if(aint0 != 0xff)
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{
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printf("%x != %x\n",0xff,aint0);
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failures++;
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}
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}
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int main(void)
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{
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sub_lit_from_uchar();
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printf("failures: %d\n",failures);
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achar0=1;
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achar1=100;
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sub_uchar2uchar();
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printf("failures: %d\n",failures);
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achar0 = 10;
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achar1 = 32;
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sub_uchar2uchar2();
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printf("failures: %d\n",failures);
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#if SUPPORT_BIT_TYPES
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sub_bits();
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achar0 = 7;
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bit0 = 1;
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sub_bit2uchar();
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printf("failures: %d\n",failures);
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sub_bit2uint();
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printf("failures: %d\n",failures);
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#endif
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aint0 = 0;
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achar0 = 0;
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sub_ucharFromLit();
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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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