project_files/hwc/rtl/system.c
author unc0rr
Wed, 12 Feb 2014 23:46:24 +0400
changeset 10134 81d733899e06
parent 10131 4b4a043111f4
child 10625 125e120165aa
permissions -rw-r--r--
Use strchr instead of strstr with specially constructed string255 struct (not tested)
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#include "system.h"
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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#ifndef M_PI
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// some math.h do not have M_PI macros
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# define M_PI    3.14159265358979323846  /* pi */
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# define M_PI_2  1.57079632679489661923  /* pi/2 */
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# define M_PI_4  0.78539816339744830962  /* pi/4 */
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# define M_PIl   3.1415926535897932384626433832795029L  /* pi */
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# define M_PI_2l 1.5707963267948966192313216916397514L  /* pi/2 */
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# define M_PI_4l 0.7853981633974483096156608458198757L  /* pi/4 */
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#endif
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double pi = M_PI;
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int paramCount;
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string255 params[MAX_PARAMS];
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string255 fpcrtl_copy(string255 s, Integer index, Integer count) {
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    string255 result = STRINIT("");
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    if (count < 1) {
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        return result;
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    }
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    if (index < 1) {
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        index = 1;
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    }
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    if (index > s.len) {
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        return result;
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    }
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    if (index + count > s.len + 1) {
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        count = s.len + 1 - index;
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    }
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    memcpy(result.str, s.str + index - 1, count);
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    result.len = count;
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    return result;
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}
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astring fpcrtl_copyA(astring s, Integer index, Integer count) {
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    astring result;
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    result.len = 0;
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    if (count < 1) {
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        return result;
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    }
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    if (index < 1) {
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        index = 1;
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    }
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    if (index > s.len) {
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        return result;
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    }
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    if (index + count > s.len + 1) {
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        count = s.len + 1 - index;
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    }
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    memcpy(result.s + 1, s.s + index, count);
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    result.len = count;
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    return result;
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}
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void __attribute__((overloadable)) fpcrtl_delete__vars(string255 *s, SizeInt index, SizeInt count) {
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    // number of chars to be move
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    int num_move;
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    int new_length;
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    if (index < 1) {
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        // in fpc, if index < 1, the string won't be modified
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        return;
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    }
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    if(index > s->len){
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        return;
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    }
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    if (count > s->len - index + 1) {
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        s->len = index - 1;
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        return;
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    }
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    num_move = s->len - index + 1 - count;
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    new_length = s->len - count;
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    memmove(s->str + index - 1, s->str + index - 1 + count, num_move);
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    s->str[new_length] = 0;
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    s->len = new_length;
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}
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void __attribute__((overloadable)) fpcrtl_delete__vars(astring *s, SizeInt index, SizeInt count) {
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    // number of chars to be move
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    int num_move;
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    int new_length;
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    if (index < 1) {
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        // in fpc, if index < 1, the string won't be modified
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        return;
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    }
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    if(index > s->len){
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        return;
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    }
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    if (count > s->len - index + 1) {
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        s->len = index - 1;
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        return;
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    }
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    num_move = s->len - index + 1 - count;
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    new_length = s->len - count;
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    memmove(s->s + index, s->s + index + count, num_move);
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    s->len = new_length;
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}
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string255 fpcrtl_floatToStr(double n) {
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    string255 t;
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    sprintf(t.str, "%f", n);
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    t.len = strlen(t.str);
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    return t;
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}
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void fpcrtl_move__vars(void *src, void *dst, SizeInt count) {
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    memmove(dst, src, count);
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}
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Integer __attribute__((overloadable)) fpcrtl_pos(Char c, string255 str) {
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    unsigned char* p;
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    if (str.len == 0) {
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        return 0;
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    }
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    FIX_STRING(str);
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    p = strchr(str.str, c);
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    if (p == NULL) {
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        return 0;
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    }
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    return p - (unsigned char*)&str.s;
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}
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Integer __attribute__((overloadable)) fpcrtl_pos(string255 substr, string255 str) {
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    unsigned char* p;
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    if (str.len == 0) {
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        return 0;
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    }
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    if (substr.len == 0) {
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        return 0;
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    }
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    FIX_STRING(substr);
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    FIX_STRING(str);
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    p = strstr(str.str, substr.str);
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    if (p == NULL) {
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        return 0;
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    }
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    return p - (unsigned char*)&str.s;
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}
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Integer __attribute__((overloadable)) fpcrtl_pos(Char c, astring str) {
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    unsigned char* p;
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    if (str.len == 0) {
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        return 0;
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    }
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    p = strchr(str.s + 1, c);
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    if (p == NULL) {
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        return 0;
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    }
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    return p - (unsigned char*)&str.s;
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}
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Integer __attribute__((overloadable)) fpcrtl_pos(string255 substr, astring str) {
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    unsigned char* p;
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    if (str.len == 0) {
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        return 0;
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    }
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    if (substr.len == 0) {
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        return 0;
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    }
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    FIX_STRING(substr);
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    str.s[str.len] = 0;
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    p = strstr(str.s + 1, substr.str);
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    if (p == NULL) {
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        return 0;
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    }
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    return p - (unsigned char *)&str.s;
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}
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Integer fpcrtl_length(string255 s) {
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    return s.len;
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}
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Integer fpcrtl_lengthA(astring s)
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{
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    return s.len;
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}
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string255 fpcrtl_lowerCase(string255 s) {
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    int i;
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    for (i = 0; i < s.len; i++) {
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        if (s.str[i] >= 'A' && s.str[i] <= 'Z') {
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            s.str[i] += 'a' - 'A';
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        }
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    }
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    return s;
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}
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void fpcrtl_fillChar__vars(void *x, SizeInt count, Byte value) {
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    memset(x, value, count);
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}
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void fpcrtl_new__vars(void **p, int size) {
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    *p = malloc(size);
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}
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Integer fpcrtl_trunc(extended n) {
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    return (int) n;
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}
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LongInt str_to_int(char *src)
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{
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    int i;
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    int len = strlen(src);
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    char *end;
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    for(i = 0; i < len; i++)
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    {
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        if(src[i] == '$'){
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            // hex
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            return strtol(src + i + 1, &end, 16);
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        }
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    }
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    // decimal
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    return atoi(src);
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}
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void __attribute__((overloadable)) fpcrtl_val__vars(string255 s, LongInt *a)
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{
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    FIX_STRING(s);
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    *a = str_to_int(s.str);
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}
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void __attribute__((overloadable)) fpcrtl_val__vars(string255 s, Byte *a)
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{
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    FIX_STRING(s);
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    *a = str_to_int(s.str);
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}
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void __attribute__((overloadable)) fpcrtl_val__vars(string255 s, LongWord *a)
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{
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    FIX_STRING(s);
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    *a = str_to_int(s.str);
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}
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LongInt fpcrtl_random(LongInt l) {
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    return (LongInt) (rand() / (double) RAND_MAX * l);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(float x, string255 *s) {
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    sprintf(s->str, "%f", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(double x, string255 *s) {
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    sprintf(s->str, "%f", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(uint8_t x, string255 *s) {
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    sprintf(s->str, "%u", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(int8_t x, string255 *s) {
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    sprintf(s->str, "%d", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(uint16_t x, string255 *s) {
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    sprintf(s->str, "%u", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(int16_t x, string255 *s) {
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    sprintf(s->str, "%d", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(uint32_t x, string255 *s) {
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    sprintf(s->str, "%u", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(int32_t x, string255 *s) {
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    sprintf(s->str, "%d", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(uint64_t x, string255 *s) {
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    sprintf(s->str, "%llu", x);
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    s->len = strlen(s->str);
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}
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void __attribute__((overloadable)) fpcrtl_str__vars(int64_t x, string255 *s) {
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    sprintf(s->str, "%lld", x);
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    s->len = strlen(s->str);
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}
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/*
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 * XXX No protection currently!
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 */
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void fpcrtl_interlockedIncrement__vars(int *i) {
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    (*i)++;
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}
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void fpcrtl_interlockedDecrement__vars(int *i) {
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    (*i)--;
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}
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   353
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/*
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 * This function should be called when entering main
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 */
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   357
void fpcrtl_init(int argc, char** argv) {
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    int i;
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    paramCount = argc;
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   360
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    printf("ARGC = %d\n", paramCount);
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   362
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   363
    for (i = 0; i < argc; i++) {
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   364
        if (strlen(argv[i]) > 255) {
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            assert(0);
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        }
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        strcpy(params[i].str, argv[i]);
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        params[i].len = strlen(params[i].str);
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    }
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   370
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}
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   372
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   373
int fpcrtl_paramCount() {
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    return paramCount - 1; // ignore the first one
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}
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   376
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   377
string255 fpcrtl_paramStr(int i) {
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    return params[i];
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}
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   380
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   381
int fpcrtl_UTF8ToUnicode(PWideChar dest, PChar src, SizeInt maxLen) {
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    //return swprintf(dest, maxLen, L"%hs", "src"); //doesn't work in emscripten
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    return 0;
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}
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   385
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   386
uint32_t __attribute__((overloadable)) fpcrtl_lo(uint64_t i) {
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   387
    return (i & 0xFFFFFFFF);
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}
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   389