hw3 status

1 files changed, 100 insertions, 2 deletions

diff --git a/src/bfi.c b/src/bfi.c
index 0171ede..cc13b11 100644
--- a/src/bfi.c
+++ b/src/bfi.c
@@ -1,6 +1,104 @@
+#include <stdio.h>
+#include <string.h>
+#include "mem.h"
+#include "stack.h"
 #include "bfi.h"
 
+#ifdef DEBUG
+  #define PRINT_PARAMS "'%c' (kood = %d)\n", c, c
+#else
+  #define PRINT_PARAMS "%c", c
+#endif
+
 void intepret(char *program){
-    
-}
+    int i = 0;
+    int length = 0;
+    while (program[i++] != '\0')
+        length++;
+
+    i = 0;
+    while (i < length){
+        //printf("i = %d\n",i);
+        //printf("%c\n", program[i]);
+        
+        switch(program[i]) {
+
+            case BF_READ: {
+                /* Loeme märgi standardsisendist (kasutaja sisestab konsooli). */
+                int c = getc(stdin);
+                if (EOF == c) {
+                    /* Sisendi lõpu korral lõpetame interpretaatori töö. */
+                    printf("Sisendi lõpp!\n");
+                    return;
+                }
+                /* Lisame mällu loetud väärtuse. */
+                mem_set((char) c);
+                break;
+            }
+
+
+            case BF_RIGHT: {
+                mem_right();
+                break;
+            }
+
+
+            case BF_LEFT: {
+                mem_left();
+                break;
+            }
+
+
+            case BF_INCREASE: {
+                mem_inc();
+                break;
+            }
+            
 
+            case BF_DECREASE: {
+                mem_dec();
+                break;
+            }
+
+
+            case BF_PRINT: {
+                char c = mem_get();
+                printf(PRINT_PARAMS);
+                break;
+            }
+
+
+            case BF_START_LOOP: {
+                stackPush(i);
+                int memVal = mem_get();
+
+                //Skiping loop
+                if (memVal == 0){
+                    int helpCounter = 1;
+                    while (helpCounter != 0){
+                        i++;
+                        if (program[i] == '[')
+                            helpCounter++;
+                        if (program[i] == ']')
+                            helpCounter--;
+                    }
+                    stackPop();
+                }
+                break;
+            }
+
+
+            case BF_END_LOOP: {
+                if (mem_get() != 0){
+                    i = stackPop();
+                    stackPush(i);
+                }
+                else
+                    stackPop();
+                break;
+            }
+
+        } // Switch end
+        i++;
+    } // While loop end
+}