project_files/hwc/rtl/system.c
branchwebgl
changeset 7983 02f36c3e7f6c
child 8047 25a4daa6473c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/hwc/rtl/system.c	Wed Nov 07 18:04:27 2012 +0000
@@ -0,0 +1,275 @@
+#include "system.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <math.h>
+
+int paramCount;
+string255 params[MAX_PARAMS];
+
+double pi = M_PI;
+
+string255 fpcrtl_copy(string255 s, Integer index, Integer count) {
+    string255 result = STRINIT("");
+
+    if (count < 1) {
+        return result;
+    }
+
+    if (index < 1) {
+        index = 1;
+    }
+
+    if (index > s.len) {
+        return result;
+    }
+
+    if (index + count > s.len + 1) {
+        count = s.len + 1 - index;
+    }
+
+    memcpy(result.str, s.str + index - 1, count);
+
+    result.str[count] = 0;
+    result.len = count;
+
+    return result;
+}
+
+void fpcrtl_delete__vars(string255 *s, SizeInt index, SizeInt count) {
+    // number of chars to be move
+    int num_move;
+    int new_length;
+
+    string255 temp = *s;
+
+    if (index < 1) {
+        // in fpc, if index < 1, the string won't be modified
+        return;
+    }
+
+    if(index > s->len){
+        return;
+    }
+
+    if (count > s->len - index + 1) {
+        s->str[index - 1] = 0;
+        s->len = index - 1;
+        return;
+    }
+
+    num_move = s->len - index + 1 - count;
+    new_length = s->len - count;
+
+    memmove(s->str + index - 1, temp.str + index - 1 + count, num_move);
+    s->str[new_length] = 0;
+
+    s->len = new_length;
+
+}
+
+string255 fpcrtl_floatToStr(double n) {
+    string255 t;
+    sprintf(t.str, "%f", n);
+    t.len = strlen(t.str);
+
+    return t;
+}
+
+void fpcrtl_move__vars(void *src, void *dst, SizeInt count) {
+    memmove(dst, src, count);
+}
+
+Integer __attribute__((overloadable)) fpcrtl_pos(Char c, string255 str) {
+    string255 t;
+    t.len = 1;
+    t.str[0] = c;
+    t.str[1] = 0;
+    return fpcrtl_pos(t, str);
+}
+
+Integer __attribute__((overloadable)) fpcrtl_pos(string255 substr, string255 str) {
+
+    char* p;
+
+    FIX_STRING(substr);
+    FIX_STRING(str);
+
+    if (str.len == 0) {
+        return 0;
+    }
+
+    if (substr.len == 0) {
+        return 0;
+    }
+
+    str.str[str.len] = 0;
+    substr.str[substr.len] = 0;
+
+    p = strstr(str.str, substr.str);
+
+    if (p == NULL) {
+        return 0;
+    }
+
+    return strlen(str.str) - strlen(p) + 1;
+}
+
+Integer fpcrtl_length(string255 s) {
+    return s.len;
+}
+
+string255 fpcrtl_lowerCase(string255 s) {
+    int i;
+
+    for (i = 0; i < s.len; i++) {
+        if (s.str[i] >= 'A' && s.str[i] <= 'Z') {
+            s.str[i] += 'a' - 'A';
+        }
+    }
+
+    return s;
+}
+
+void fpcrtl_fillChar__vars(void *x, SizeInt count, Byte value) {
+    memset(x, value, count);
+}
+
+void fpcrtl_new__vars(void **p, int size) {
+    *p = malloc(size);
+}
+
+Integer fpcrtl_trunc(extended n) {
+    return (int) n;
+}
+
+LongInt str_to_int(char *src)
+{
+    int i;
+    int len = strlen(src);
+    char *end;
+    for(i = 0; i < len; i++)
+    {
+        if(src[i] == '$'){
+            // hex
+            return strtol(src + i + 1, &end, 16);
+        }
+    }
+
+    // decimal
+    return atoi(src);
+}
+void __attribute__((overloadable)) fpcrtl_val__vars(string255 s, LongInt *a,
+        LongInt *c) {
+    *c = 0; // no error
+    FIX_STRING(s);
+    *a = str_to_int(s.str);
+}
+
+void __attribute__((overloadable)) fpcrtl_val__vars(string255 s, Byte *a,
+        LongInt *c) {
+    *c = 0; // no error
+    FIX_STRING(s);
+    *a = str_to_int(s.str);
+}
+
+void __attribute__((overloadable)) fpcrtl_val__vars(string255 s, LongWord *a,
+        LongInt *c) {
+    *c = 0; // no error
+    FIX_STRING(s);
+    *a = str_to_int(s.str);
+}
+
+LongInt fpcrtl_random(LongInt l) {
+    return (LongInt) (rand() / (double) RAND_MAX * l);
+}
+
+void __attribute__((overloadable)) fpcrtl_str__vars(float x, string255 *s) {
+    sprintf(s->str, "%f", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(double x, string255 *s) {
+    sprintf(s->str, "%f", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(uint8_t x, string255 *s) {
+    sprintf(s->str, "%u", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(int8_t x, string255 *s) {
+    sprintf(s->str, "%d", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(uint16_t x, string255 *s) {
+    sprintf(s->str, "%u", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(int16_t x, string255 *s) {
+    sprintf(s->str, "%d", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(uint32_t x, string255 *s) {
+    sprintf(s->str, "%u", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(int32_t x, string255 *s) {
+    sprintf(s->str, "%d", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(uint64_t x, string255 *s) {
+    sprintf(s->str, "%llu", x);
+    s->len = strlen(s->str);
+}
+void __attribute__((overloadable)) fpcrtl_str__vars(int64_t x, string255 *s) {
+    sprintf(s->str, "%lld", x);
+    s->len = strlen(s->str);
+}
+
+/*
+ * XXX No protection currently!
+ */
+void fpcrtl_interlockedIncrement__vars(int *i) {
+    (*i)++;
+}
+
+void fpcrtl_interlockedDecrement__vars(int *i) {
+    (*i)--;
+}
+
+/*
+ * This function should be called when entering main
+ */
+void fpcrtl_init(int argc, char** argv) {
+    int i;
+    paramCount = argc;
+
+    printf("ARGC = %d\n", paramCount);
+
+    for (i = 0; i < argc; i++) {
+        if (strlen(argv[i]) > 255) {
+            assert(0);
+        }
+        strcpy(params[i].str, argv[i]);
+        params[i].len = strlen(params[i].str);
+    }
+
+}
+
+int fpcrtl_paramCount() {
+    return paramCount - 1; // ignore the first one
+}
+
+string255 fpcrtl_paramStr(int i) {
+    return params[i];
+}
+
+int fpcrtl_UTF8ToUnicode(PWideChar dest, PChar src, SizeInt maxLen) {
+    //return swprintf(dest, maxLen, L"%hs", "src"); //doesn't work in emscripten
+    return 0;
+}
+
+uint32_t __attribute__((overloadable)) fpcrtl_lo(uint64_t i) {
+    return (i & 0xFFFFFFFF);
+}
+