Implemented on-the-fly register interpretation

Imanol-Mikel Barba Sabariego
1 parent 225162b5
Showing 4 changed files with 58 additions and 33 deletions
debug.c
disasm.c
main.c
scripts/process_disasm.sh
@@ -118,6 +118,7 @@ void query()
                 fprintf(stderr,"Loaded state as %s",filename);
                 break;
             case 'w':
+                //FIXME ALREADY
                 sscanf(input,"w %d %d\n",&reg,&value);
                 fprintf(stderr,"Setting register %d to %d",reg,value);
                 regs[reg] = value;
@@ -152,72 +153,107 @@ uint16_t fetch_debug()
     return value;
 }
  
-void print_instruction(uint16_t opcode, uint16_t arg1, uint16_t arg2, uint16_t arg3)
+void translate_args(uint16_t a1, uint16_t a2, uint16_t a3, char *arg1, char *arg2, char *arg3)
 {
+    if(a1 > MAX_INT)
+    {
+        sprintf(arg1,"r%d",a1-(MAX_INT+1));
+    }
+    else
+    {
+        sprintf(arg1,"%d",a1);
+    }
+    
+    if(a2 > MAX_INT)
+    {
+        sprintf(arg2,"r%d",a2-(MAX_INT+1));
+    }
+    else
+    {
+        sprintf(arg2,"%d",a2);
+    }
+    
+    if(a3 > MAX_INT)
+    {
+        sprintf(arg3,"r%d",a3-(MAX_INT+1));
+    }
+    else
+    {
+        sprintf(arg3,"%d",a3);
+    }
+    
+}
+
+void print_instruction(uint16_t opcode, uint16_t a1, uint16_t a2, uint16_t a3)
+{
+    char arg1[10];
+    char arg2[10];
+    char arg3[10];
+    translate_args(a1,a2,a3,arg1,arg2,arg3);
     switch(opcode)
     {
         case HALT:
             fprintf(stderr,"HALT\n");
             break;
         case MOV:
-            fprintf(stderr,"MOV %d %d\n",arg1,arg2);
+            fprintf(stderr,"MOV %s %s\n",arg1,arg2);
             break;
         case PUSH:
-            fprintf(stderr,"PUSH %d\n",arg1);
+            fprintf(stderr,"PUSH %s\n",arg1);
             break;
         case POP:
-            fprintf(stderr,"POP %d\n",arg1);
+            fprintf(stderr,"POP %s\n",arg1);
             break;
         case TEQ:
-            fprintf(stderr,"TEQ %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"TEQ %s %s %s\n",arg1,arg2,arg3);
             break;
         case TGT:
-            fprintf(stderr,"TGT %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"TGT %s %s %s\n",arg1,arg2,arg3);
             break;
         case JMP:
-            fprintf(stderr,"JMP %d\n",arg1);
+            fprintf(stderr,"JMP %s\n",arg1);
             break;
         case JNZ:
-            fprintf(stderr,"JNZ %d %d\n",arg1,arg2);
+            fprintf(stderr,"JNZ %s %s\n",arg1,arg2);
             break;
         case JZ:
-            fprintf(stderr,"JZ %d %d\n",arg1,arg2);
+            fprintf(stderr,"JZ %s %s\n",arg1,arg2);
             break;
         case ADD:
-            fprintf(stderr,"ADD %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"ADD %s %s %s\n",arg1,arg2,arg3);
             break;
         case MUL:
-            fprintf(stderr,"MUL %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"MUL %s %s %s\n",arg1,arg2,arg3);
             break;
         case MOD:
-            fprintf(stderr,"MOD %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"MOD %s %s %s\n",arg1,arg2,arg3);
             break;
         case AND:
-            fprintf(stderr,"AND %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"AND %s %s %s\n",arg1,arg2,arg3);
             break;
         case OR:
-            fprintf(stderr,"OR %d %d %d\n",arg1,arg2,arg3);
+            fprintf(stderr,"OR %s %s %s\n",arg1,arg2,arg3);
             break;
         case NOT:
-            fprintf(stderr,"NOT %d %d\n",arg1,arg2);
+            fprintf(stderr,"NOT %s %s\n",arg1,arg2);
             break;
         case LOAD:
-            fprintf(stderr,"LOAD %d %d\n",arg1,arg2);
+            fprintf(stderr,"LOAD %s %s\n",arg1,arg2);
             break;
         case STOR:
-            fprintf(stderr,"STOR %d %d\n",arg1,arg2);
+            fprintf(stderr,"STOR %s %s\n",arg1,arg2);
             break;
         case CALL:
-            fprintf(stderr,"CALL %d\n",arg1);
+            fprintf(stderr,"CALL %s\n",arg1);
             break;
         case RET:
             fprintf(stderr,"RET\n");
             break;
         case OUT:
-            fprintf(stderr,"OUT %d\n",arg1);
+            fprintf(stderr,"OUT %s\n",arg1);
             break;
         case IN:
-            fprintf(stderr,"IN %d\n",arg1);
+            fprintf(stderr,"IN %s\n",arg1);
             break;
         case NOP:
             fprintf(stderr,"NOP\n");
@@ -11,7 +11,7 @@ void disassemble_program(uint32_t length)
         {
             break;
         }
-        printf("%d: ",pc);
+        fprintf(stderr,"%d: ",pc);
         uint16_t opcode = fetch();
         decode_instruction(opcode,&arg1,&arg2,&arg3);
         print_instruction(opcode,arg1,arg2,arg3);
@@ -29,6 +29,7 @@ void startvm(char *program)
  
 void disasm(char *program)
 {
+    stderr = stdout;
     disassemble_program(load_program(program));
 }
  
-#!/bin/bash
-
-PROGRAM="$1"
-
-sed -i "s/32768/r0/g" "$PROGRAM"
-sed -i "s/32769/r1/g" "$PROGRAM"
-sed -i "s/32770/r2/g" "$PROGRAM"
-sed -i "s/32771/r3/g" "$PROGRAM"
-sed -i "s/32772/r4/g" "$PROGRAM"
-sed -i "s/32773/r5/g" "$PROGRAM"
-sed -i "s/32774/r6/g" "$PROGRAM"
-sed -i "s/32775/r7/g" "$PROGRAM"