Add main C file

Add conversion functions and the fibonacci vector

.gitignore

+cMIPS/vhdl/*.o
+cMIPS/vhdl/*.cf
+cMIPS/vhdl/.last_import
+cMIPS/tb_cmips
+cMIPS/include/*.o
+cMIPS/include/*~
+cMIPS/include/cMIPSio.s

cMIPS/include/main.c

+#include<stdio.h>
+#include "vetorFib.h"
+
+#define MAXPOW 7
+
+int Strlen(char *c)
+{
+    int i= 0;
+    while(c[i++]);
+    return i-1;
+}
+
+int pow16(int ex)
+{
+    int i, ret=1;
+    for (i= 0; i< ex/2; i++)
+        ret*=16;
+    ret *= ret;
+    return (ex%2?ret*16:ret);
+}
+
+int hex2int(char *hex)
+{
+    int s= Strlen(hex), i, ans= 0;
+    for (i= 0; i< s; i++) {
+        switch(hex[i]) {
+            case 'F':
+            case 'f':
+                ans+= 15*pow16(s-(i+1));
+                break;
+            case 'E':
+            case 'e':
+                ans+= 14*pow16(s-(i+1));
+                break;
+            case 'D':
+            case 'd':
+                ans+= 13*pow16(s-(i+1));
+                break;
+            case 'C':
+            case 'c':
+                ans+= 12*pow16(s-(i+1));
+                break;
+            case 'B':
+            case 'b':
+                ans+= 11*pow16(s-(i+1));
+                break;
+            case 'A':
+            case 'a':
+                ans+= 10*pow16(s-(i+1));;
+                break;
+            case '9':
+                ans+= 9*pow16(s-(i+1));;
+                break;
+            case '8':
+                ans+= 8*pow16(s-(i+1));;
+                break;
+            case '7':
+                ans+= 7*pow16(s-(i+1));;
+                break;
+            case '6':
+                ans+= 6*pow16(s-(i+1));;
+                break;
+            case '5':
+                ans+= 5*pow16(s-(i+1));;
+                break;
+            case '4':
+                ans+= 4*pow16(s-(i+1));;
+                break;
+            case '3':
+                ans+= 3*pow16(s-(i+1));;
+                break;
+            case '2':
+                ans+= 2*pow16(s-(i+1));;
+                break;
+            case '1':
+                ans+= 1*pow16(s-(i+1));;
+                break;
+            default:
+                if (hex[i] != '0')
+                    printf("ERROR!\n");
+                break;
+        }
+    }
+    return ans;
+}
+
+int int2hex(char *c, int i)
+{
+    int j= 0, val;
+    int p;
+    p = pow16(MAXPOW);
+    while (p > 0) {
+        val= 0;
+        if (i/p) {
+            val= i/p;
+            i%= p;
+        }
+        if ((val < 10) && (j || val)) { // impede que '0' sejam escritos à esquerda
+            c[j++] = val+'0';
+        }
+        else if (val > 9)
+            c[j++] = 'a'+ (val-10);
+        p/=16;
+    }
+    c[j] = 0;
+    return j-1;
+}
+
+int main()
+{
+    char n[16], f[16];
+    int fib;
+    while (scanf("%s", n) > 0) {
+        fib= hex2int(n);
+        if (fib < BUF_SZ) {
+            fib = buf[fib];
+            int2hex(f, fib);
+            printf("%d(%s)\n", fib, f);
+        } else
+            printf("Valor fora dos limites!\n");
+    }
+}

cMIPS/include/vetorFib.h

+#define BUF_SZ 45
+
+int buf[BUF_SZ] = {
+1,1,2,3,5,8,13,21,
+34,55,89,144,233,377,610,987,
+1597,2584,4181,6765,10946,17711,28657,46368,
+75025,121393,196418,317811,514229,832040,1346269,2178309,
+3524578,5702887,9227465,14930352,24157817,39088169,63245986,102334155,
+165580141,267914296,433494437,701408733
+};
+