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119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
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// test basic arithmetic operations
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// WIP WIP WIP
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#ifdef CONIO
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#include <conio.h>
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#define WAIT() cgetc()
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#else
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#define WAIT()
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <_float.h>
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float fp1 = 12.34f;
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float fp2; // non initialized
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float fp3, fp4 = 55.55f;
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char buf[0x20];
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char buf2[0x20];
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char buf3[0x20];
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unsigned long l1,l2;
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signed char var_schar;
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unsigned char var_uchar;
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signed int var_sint;
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unsigned int var_uint;
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signed long var_slong;
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unsigned long var_ulong;
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int result = 0;
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int i;
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unsigned char ch;
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// returns 1 if value in f matches the string
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// the string is a hex value without leading "0x"
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int compare(float f, char *str)
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{
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char temp[12];
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sprintf(temp, "%08lx", *((uint32_t*)&f));
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printf("[%s:%s]", temp, str);
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return (strcmp(temp, str) == 0) ? 1 : 0;
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}
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void test1(float f, char *str)
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{
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if (compare(f, str)) {
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// printf(" (ok)");
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printf("\n");
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} else {
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printf(" (failed) !!!\n");
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result++;
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}
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}
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void SKIPPEDtest1(float f, char *str)
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{
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char temp[12];
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sprintf(temp, "%08lx", *((uint32_t*)&f));
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printf(" (SKIPPED:%s:%s)\n", temp, str);
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}
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void test(void)
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{
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#define XMIN 2.0f
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#define XSTEP 0.2f
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ch = 3;
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printf("floatconst + intvar * floatconst\n");
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fp1 = XMIN + ch * XSTEP;
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printf("fp1:0x%08lx [0x402663e6] %s (2.5997)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
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test1(fp1, "402663e6");
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ch = 4;
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fp1 = ch * 2.0f + 3.0f;
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fp2 = 3.0f + ch * 2.0f;
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printf(" fp1:0x%08lx [0x41300000] %s (exp:11)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
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printf(" fp2:0x%08lx [0x41300000] %s (exp:11)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
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test1(fp1, "41300000");
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test1(fp2, "41300000");
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printf("floatconst / intconst, intconst / floatconst\n");
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fp1 = ( (20.0f / 4.5f));
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fp2 = ( (4.5f / 20.0f));
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printf(" fp1:0x%08lx [0x408e38e4] %s (exp:4.444445)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
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test1(fp1, "408e38e4");
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printf(" fp2:0x%08lx [0x3e666666] %s (exp:0.225000)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
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test1(fp2, "3e666666");
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fp1 = ((20 / 4.5f)); // 4.44
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fp2 = ((4.5f / 20)); // 0.225
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printf(" fp1:0x%08lx [0x408e38e4] %s (exp:4.444445)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
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test1(fp1, "408e38e4");
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printf(" fp2:0x%08lx [0x3e666666] %s (exp:0.225000)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
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test1(fp2, "3e666666");
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}
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int main(void)
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{
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float fp2 = 43.21f;
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printf("*** float-mixed ***\n");
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printf("fp1:0x%08lx [0x414570a4] %s (12.340000)\n", *((uint32_t*)&fp1), _ftostr(buf, fp1));
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printf("fp2:0x%08lx [0x422cd70a] %s (43.209999)\n", *((uint32_t*)&fp2), _ftostr(buf, fp2));
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test();
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WAIT();
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printf("\nfloat-mixed (res:%d)\n", result);
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return result;
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}
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